The present invention relates to a method for controlling one or more heat pumps (110) connected to a distribution grid (10) for fluid-based distribution of heating and cooling in order to, at least partly, compensate for a cold outtake from the distribution grid (10) by a first cooling machine (120) connected to the distribution grid (10). Alternatively, or in combination, one or more cooling machines (120) connected to the distribution grid (10) may be controlled in order to, at least partly, compensate for a heat outtake from the distribution grid (10) by a first heat pump (120) connected to the distribution grid (10). The controlling is made a control server (200) monitoring outtake of heat and/or cold from the distribution grid (10) by the heat pumps (110) and cooling machines (120) connected to the distribution grid (10). The control server (120) generates and sends out control messages to the heat pumps and/or cooling machines.
Disclosed is a valve assembly (100) for drainage or deaeration of a hydraulic system (114), The valve assembly (100) comprising: a valve (102) comprising a first side (104) and a second side (106), the first side (104) is configured to be connected to the hydraulic system (114) and the second side (106) is connected to a mouth piece (108), wherein the valve (102) is configured to be set in an open state or in a closed state, wherein, upon the valve (102) is set in the open state, fluid in the hydraulic system (114) is free to pass the valve (102) from the first side (104) to the second side (106); a valve assembly controller (110) comprising a transceiver (202) configured to receive a control signal indicating a start of drainage or deaeration of the hydraulic system (114) and a valve assembly control circuit (204) configured to execute: a valve control function (210) configured to set the valve (102) in the open state or closed state; and a drainage or deaeration function (212) configured to, based on the control signal, instruct the valve control function (210) to set the valve (102) in the open state; and a sensor (112) configured to monitor the mouth piece (108) to obtain sensor data pertaining to fluid leaving the mouth piece (108) upon the valve (102) is set in the open state.
E21B 33/035 - Têtes de puits; Leur mise en place spécialement adaptées aux installations sous l'eau
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
3.
IMPROVED EFFICIENCY FOR A HEAT EXTRACTING SYSTEM AND/OR A HEAT DEPOSITING SYSTEM
A heat extracting system (100) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a heat depositing system (200) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature. Also a heat depositing system (200) is disclosed.
A heat pump assembly (100) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a cooling machine assembly (200) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough.
A thermal energy extraction assembly (1) is configured to extract heat and/or cold from a thermal energy distribution grid (10) is presented. The assembly (1) comprising a connection circuit (20) connecting the assembly (1) to the grid (10); a first heat exchanger (30) configured to exchange heat from a heating circuit (40) to the grid (10); a second heat exchanger (50) configured to extract heat from the grid (10) to a cooling circuit (60); and a heat pump (70) having a condenser side (71) connected to the heating circuit (40) and an evaporator side (72) connected to the cooling circuit (60), the heat pump (70) being configured to pump heat from the cooling circuit (60) to the heating circuit (40).
A method for ensuring a flow of heat transfer fluid in a district thermal energy distribution grid (120) comprising a feed conduit (130) and a return conduit (140) is presented. The method comprising: checking if a thermal energy extraction unit (310) connected to the district thermal energy distribution grid is called for delivering thermal energy; upon the thermal energy extraction unit (310) not being called for delivering thermal energy, opening a control valve (340) configured to control a flow of heat transfer fluid from the feed conduit (130) via the thermal energy extraction unit (310) to the return conduit (140), thereby achieving a by-pass from the feed conduit (130) to the return conduit (140). Also control unit for controlling a thermal energy extraction unit (310) is presented.
Disclosed is a method for controlling a control valve (110), wherein the control valve (110) is configured to control a flow of heat transfer fluid to a thermal energy extraction unit (108). The method comprising: reviewing (S402) a demand signal for the control valve (110); checking (S404) if the demand signal is indicative of setting the control valve (110) in a hysteresis interval for the control valve (110); and upon the demand signal is indicative of setting the control valve (110) in the hysteresis interval, alternatingly (S406) setting the control valve (110) in an open state above the hysteresis interval and setting the control valve (110) in a closed state.
A system comprising a thermal energy circuit (40) which comprises a hot fluid conduit (41) and a cold fluid conduit (42), the system further comprising a first temperature regulating module (10b) and a second temperature regulating module (10b), wherein the first temperature regulating module (10a) 5 comprises a first temperature regulating conduit (11a) connected to the hot fluid conduit (41) and wherein the second temperature regulating module (10b) comprises a second temperature regulating conduit (11b) connected to the cold fluid conduit (42), the system (50) further comprising a first valve arrangement configured to selectively let the thermal distribution fluid flow in 10 the first temperature regulating conduit (11a), and a second valve arrangement configured to selectively let the thermal distribution fluid flow in the second temperature regulating conduit (11b).
F24D 11/00 - Systèmes de chauffage central utilisant la chaleur accumulée dans des matériaux accumulateurs
F24T 10/15 - Collecteurs géothermiques avec circulation des fluides vecteurs dans des conduits souterrains, les fluides vecteurs n’entrant pas en contact direct avec le sol utilisant des assemblages de conduits adéquats pour l’insertion dans des trous forés dans le sol, p.ex. sondes géothermiques utilisant des conduits assemblés avec des connecteurs ou des boîtes de distribution
F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en général; Appareils échangeurs de chaleur de régénération non couverts par les groupes ou
9.
LEAKAGE DETECTION IN A DISTRIBUTION SYSTEM FOR DISTRIBUTING A FLUID
Disclosed is a method for locating a leak in a distribution system (100a, 100b) configured to distribute a liquid, the distribution system comprising at least one conduit (102, 103, 104) configured to transport the liquid, the at least one conduit (102, 103, 104) being at least partly buried in ground, the method comprising receiving (S402) an alarm indicating existence of a leak in the distribution system (100a, 100b); adjusting (S404) a temperature of the liquid of the distribution system (100a, 100b); and locating (S406) the leak by detecting, using thermography, a position along the at least one conduit (102, 103, 104) at which position a deviation in ground temperature, induced by the adjusted temperature, exists. Also a central control server (300) configured to perform the above method and a system comprising the distribution system (100a, 100b), the central control server (300) and a drone (114) are disclosed.
G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes
10.
METHOD AND CONTROL SERVER FOR CONTROLLING A DISTRICT THERMAL ENERGY DISTRIBUTION SYSTEM
A method for controlling a district thermal energy distribution system is presented. The method comprises: determining whether a local pressure difference between a feed line (111) and a return line (112) of a distribution grid (110) is below a predetermined threshold; upon the local pressure difference is determined to be below the predetermined threshold, generating a control signal comprising information instructing a local distribution system (150) to reduce outtake of heat or cold from the distribution grid (110); sending the control signal to a local control unit (140) of the local distribution system (150); and reducing, in response to the control signal, the outtake of heat or cold of the local distribution system (150) from the distribution grid (110). The distribution grid (110) may be a district heating grid or a district cooling grid. Also, a control server and a district thermal energy distribution system is presented.
A method for controlling indoor climate in a portion (102) of a building (100) is presented. The method comprises: identifying (S402), based on a wireless communication based positioning function, electronic devices (204a, 204b, 204c) present in the portion (102) of the building (100); for each identified electronic device, determining whether the identified electronic device is associated with a user; determining (S406) an estimated total amount of heat dissipation present in the portion (102) of the building (100) based on an amount of heat dissipation associated with the respective user to which the respective identified electronic device is associated; and controlling (S408) indoor climate in the portion (102) of the building (100) based on the estimated total amount of heat dissipation present in the portion (102) of the building (100). Also, a server (106) and a system for performing the controlling are presented.
Disclosed is a control unit (206) configured to control an outtake of heat and/or cold of a thermal device (106) from a distribution grid (202) for a fluid based distribution of heat and/or cold. The control unit (206) comprising: a communication unit (302) configured to communicate with a central (208) server using a predetermined rule of communication; a control circuit (304) configured to execute: a monitoring function (310) configured to monitor the communication between the control unit (206) and the central server (208); a mode setting function (312) configured to: upon the communication between the control unit (206) and the central server (208) fulfills the predetermined rule of communication, set the thermal device (106) in a normal operation mode, upon the communication between the control unit (206) and the central server (208) does not fulfill the predetermined rule of communication, set the thermal device (106) in a limited operation mode, wherein the limited operation mode is more restricted than the normal operation mode, wherein in the normal operation mode the thermal device (106) is allowed to freely take out heat and/or cold from the distribution grid (202), wherein in the limited operation mode the thermal device (106) is restricted to take out heat and/or cold from the distribution grid (202) below a preconfigured threshold.
12,12 2 11 21 22 11, set the primary side inlet valve assembly (126) to fluidly connect the primary side inlet valve first conduit connection (126b) and the primary side inlet connection (126a).
F24D 19/10 - Aménagements ou montage des dispositifs de commande ou de sécurité
F24F 5/00 - Systèmes ou appareils de conditionnement d'air non couverts par ou
F24F 11/84 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
14.
A METHOD AND A SERVER FOR VERIFYING A PHYSICAL CONNECTION OF AN UNVERIFIED THERMAL DEVICE TO A SPECIFIC COMBINED DISTRICT HEATING AND COOLING SYSTEM
Disclosed is a method for verifying a physical connection of an unverified thermal device (202) to a specific combined district heating and cooling system (100). The method comprising: receiving (402), from a verified thermal device (106a-e, 112) already verified as physically connected to the specific combined district heating and cooling system (100), reference data pertaining to a physical characteristic associated to the specific combined district heating and cooling system (100); receiving (404), from the unverified thermal device (202), test data pertaining to a physical characteristic of a combined district heating and cooling system (100) the unverified thermal device (202) is connected to; determining (406) a comparison criterion based on the reference data; and comparing (408) the test data and the comparison criterion. Upon the comparison fulfills (410) the comparison criterion, verifying (412) that the unverified thermal device (202) is physically connected to the specific combined district heating and cooling system (100). Also a server configured to verify a physical connection of an unverified thermal device (202) to a specific combined district heating and cooling system (100) is disclosed.
A method for identifying a deviation in a thermal energy circuit is presented. The method comprising: receiving (302) a first hot fluid flow measurement (f1) from a first hot fluid flow sensor (208) arranged in a hot fluid conduit (102); receiving (304) a first cold fluid flow measurement (r1) from a first cold fluid flow sensor (204) arranged in a cold fluid conduit (104); receiving (306) a second hot fluid flow measurement (f2) from a second hot fluid flow sensor (210) arranged in the hot fluid conduit (102) upstream the first hot fluid flow meter (208); receiving (308) a second cold fluid flow measurement (r2) from a second cold fluid flow sensor (206) arranged in the cold fluid conduit (104) downstream the first cold fluid flow sensor (204); receiving (310) a thermal device flow measurement (g) from a thermal device flow sensor (202) configured to measure a thermal device flow of a thermal device (106a) connected to the hot fluid conduit (102) downstream the first hot fluid flow sensor (208) and upstream the second hot fluid flow sensor (210), and to the cold fluid conduit (104) upstream the first cold fluid flow sensor (204) and downstream the second cold fluid flow sensor (206). The method further comprising upon (312) the first hot fluid flow measurement (f1) is different from the second hot fluid flow measurement (f2) and the thermal device flow measurement (g) in combination, generating (314) a first deviation signal indicating a deviation in the hot fluid conduit (102), or upon (316) the first cold fluid flow measurement (r1) is different from the second cold fluid flow measurement (r2) and the thermal device flow measurement (g) in combination, generating (318) a second deviation signal indicating a deviation in the cold fluid conduit (104).
hotcoldcoldhothot, set the distribution pump arrangement in a hot conduit pumping mode, wherein: the hot conduit control valve (20) is set to be closed, and the first distribution pump (22) is set to be active, thereby reduce the local pressure difference.
The present invention relates to a method for controlling setting of reversible heat pump assemblies (100) of a district thermal energy distribution system (1) in either a heating mode or a cooling mode. The method comprises: determining, at a control server, a first set of the reversible heat pump assemblies (100) to be set in the heating mode during a future time period; determining, at the control server, a second set of the reversible heat pump assemblies (100) to be set in the cooling mode during the future time period, wherein the second set of the reversible heat pump assemblies (100) is separate from the first set of the reversible heat pump assemblies (100); sending, from the control server (200) to the reversible heat pump assemblies (100) of the first set of the reversible heat pump assemblies (100), a respective control message to set the respective reversible heat pump assembly (100) in the heating mode for the future time period; sending, from the control server (200) to the reversible heat pump assemblies (100) of the second set of the reversible heat pump assemblies (100), a respective control message to set the respective reversible heat pump assembly (100) in the cooling mode for the future time period; and setting the respective reversible heat pump assembly (100) in either the heating mode or the cooling mode for the future time period.
F24D 3/18 - Systèmes de chauffage central à eau chaude utilisant des pompes à chaleur
F24F 5/00 - Systèmes ou appareils de conditionnement d'air non couverts par ou
F24F 11/62 - Aménagements de commande ou de sécurité caractérisés par le type de commande ou par le traitement interne, p.ex. utilisant la logique floue, la commande adaptative ou l'estimation de valeurs
F24F 11/67 - Basculement entre les modes de chauffage et de refroidissement
18.
METHOD FOR FILLING A TRENCH COMPRISING A PAIR OF CONDUITS AND SUCH A FILLED TRENCH
A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits, the pair of conduits being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space surrounding a first conduit (3a) of the pair of conduits; and a second section (5b) filled with a filling material of a second type (4b), wherein the second filled section (5b) of the filled trench occupies a space surrounding a second conduit (3b) of the pair of conduits. The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of the second type (4b) has a second thermal conduction coefficient, the second thermal conduction coefficient being different from the first thermal conduction coefficient.
A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits (3a, 3b), the pair of conduits (3a, 3b) being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space in between the pair of conduits (3a, 3b); and a second section (5b) filled with a filling material of a second type (4b). The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of a second type (4b) has a higher second thermal conduction coefficient. Further, a method for filling such a filled trench is disclosed.
The disclosure relates to a method for controlling a thermal energy distribution system, the method comprising: - determining forecast data pertaining to expected overall outtake of heat and/or cooling over time from a distribution grid by local distribution systems connected to the distribution grid, and to expected production capacity of heat and/or cooling in one or more production plants, - determining, at a control server, a time resolved control signal, the control signal being based on forecast data and being associated with at least one local control unit, - sending the control signal from the control server to the associated local control unit, - receiving the control signal at the associated local control unit, - regulating over time, in response to the control signal, the outtake of heat and/or cooling of the local distribution system from the distribution grid. The thermal energy distribution system is also claimed.
The disclosure relates to a method for controlling a heat distribution system. The method comprises: determining a time period of forecasted elevated overall outtake of heat from a district thermal energy distribution grid (110) by local heat distribution systems (150) connected to the district thermal energy distribution grid (110); determining, at a control server (130), a control signal associated with a respective one of a plurality of local control units (140), wherein each respective control signal is time resolved and comprises information pertaining to a temporary increase in heat outtake from the district thermal energy distribution grid (110) before the determined time period, and information pertaining to a temporary decrease in heat outtake from the district thermal energy distribution grid (110) during the determined time period; sending each respective control signal from the control server (130) to the respective local control unit (140); receiving the respective control signal at the respective local control unit (140); and regulating, at each respective local control unit (140) and based on the respective control signal, the outtake of heat by the respective local heat distribution system (150) from the district thermal energy distribution grid (110).
G05D 23/19 - Commande de la température caractérisée par l'utilisation de moyens électriques
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projets; Planification d’entreprise ou d’organisation; Modélisation d’entreprise ou d’organisation
22.
LOCAL HEAT EXTRACTING ASSEMBLY HAVING PASSIVE AND ACTIVE ELEMENTS AND A LOCAL ENERGY DISTRIBUTING SYSTEM COMPRISING A PLURALITY OF SUCH LOCAL HEAT EXTRACTING ASSEMBLIES
A local heat extracting assembly (200) is disclosed. The local heat extracting assembly (200) having one inlet (201) connectable to a local feed conduit (22) of a local energy distributing system (20), and one outlet (205) connectable to a local return conduit (23) of the local energy distributing system (20). The local heat extracting assembly (200) comprises: a local heat exchanger (220) configured to extract heat from local heat transfer fluid of the local feed conduit (22) to a heating liquid of a heating circuit (230) configured to circulate the heating liquid in a building (40) for providing comfort heating; and a heat pump (210) configured to pump heat from the heating liquid of the heating circuit (230) or from local heat transfer fluid of the local feed conduit (22) to provide hot tap water to the building (40). A local energy distributing system (20) comprising a plurality of local heat extracting assembly (200) is further disclosed. Further, a method for extracting heat from the local energy distributing system (20) and a method for distributing energy to a plurality of buildings (40) are disclosed.
A system comprising a main circuit for routing a flow of heat transfer liquid out of a thermal storage to at least one outer heat exchanger and back to the thermal storage again, a main circulation pump configured to force the heat transfer liquid through the main circuit, a temperature sensor configured to measure the temperature of the heat transfer liquid, and a controller configured to control the main circulation pump based on temperature readings of the temperature sensor such that a calculated Reynolds number for the flow of heat transfer liquid is constant at a predetermined target Reynolds number over at least a primary temperature range.
F24D 19/10 - Aménagements ou montage des dispositifs de commande ou de sécurité
F28F 13/12 - Dispositions pour modifier le transfert de chaleur, p.ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique en créant une turbulence, p.ex. par brassage, par augmentation de la force de circulation
24.
METHOD AND CONTROLLER FOR CONTROLLING A REVERSIBLE HEAT PUMP ASSEMBLY
A controller configured to selectively set a reversible heat pump assembly (100) in either a heating mode or in a cooling mode is presented. The controller comprising a control circuit (44) configured to: for a time period, determine, using a demand determining function (50), a heating demand for heat from one or more local heating circuits (140) connected to the reversible heat pump assembly (100) and a cooling demand for cold from one or more local cooling circuits (140) connected to the reversible heat pump assembly (100); generate, using a control function (52), a control signal indicative of if the reversible heat pump assembly (100) is to be set in either the heating mode or in the cooling mode, wherein the control function is configured to use the heating demand and the cooling demand as input data; and send, using a transmission function (54), the control signal to a heat pump (110) of the reversible heat pump assembly (100). Also a method for controlling the reversible heat pump assembly (100) is presented.
F24F 11/83 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur
F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
F24F 11/67 - Basculement entre les modes de chauffage et de refroidissement
25.
REVERSIBLE HEAT PUMP ASSEMBLY AND DISTRICT THERMAL ENERGY DISTRIBUTION SYSTEM COMPRISING SUCH A REVERSIBLE HEAT PUMP ASSEMBLY
A reversible heat pump assembly (100) is disclosed. The heat pump assembly (100) comprises a heat pump (110) having a first side (120) and a second side (130), the heat pump (110) being configured to transfer heat from the first side (120) to the second side (130) or vice versa; a first side inlet valve assembly (126) having a heat pump connection (126a) connected to the first side (120), and hot and cold conduit connections (126b; 126c) arranged to be connected to a thermal energy grid (10) comprising hot and cold conduits (12; 14); a second side outlet valve assembly (136) having a heat pump connection (136a) connected to the second side (130), and heating and cooling circuit connections (136b; 136c) arranged to be connected to heating and cooling circuits (130; 140), respectively. The reversible heat pump assembly (100) is configured to be selectively set in either a heating mode or a cooling mode. In the heating mode the heat pump (110) is configured to transfer heat from the first side (120) to the second side (130), the first side inlet valve assembly (126) is configured to fluidly connect the hot conduit connection (126b) and the heat pump connection (126a), and the second side outlet valve assembly (136) is configured to fluidly connect the heat pump connection (136a) and the heating circuit connection (136b). In the cooling mode the heat pump (110) is configured to transfer heat from the second side (130) to the first side (120), the first side inlet valve assembly (126) is configured to fluidly connect the cold conduit connection (126c) and the heat pump connection (126a), and the second side outlet valve assembly (136) is configured to fluidly connect the heat pump connection (136a) and the cooling circuit connection (136c). Also a district thermal energy distribution system comprising a plurality of reversible heat pump assemblies (100) is disclosed.
A method for handling surplus or deficit of energy in local energy systems (30) is presented. The method comprising; determining an accumulator status based on data pertaining to an accumulator (20) of a moveable device (10); determining energy status of each of a plurality of local energy systems (30) based on data pertaining to the respective local energy system 30; scoring, based on the determined accumulator status and the determined energy statuses, each of the local energy systems (30); determining, based on the respective scores of each of the plurality of local energy systems (30), a local energy system (30), among the plurality of local energy systems (30), to which the moveable device (10) is to be directed. Also a server (40) configured to handling surplus or deficit of energy in local energy systems is presented.
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
B60L 53/63 - Surveillance et commande des stations de charge en réponse à la capacité du réseau
B60L 55/00 - Dispositions relatives à la fourniture d'énergie emmagasinée dans un véhicule à un réseau électrique, c. à. d. du véhicule au réseau [V2G]
27.
HANDLING SURPLUS AND/OR DEFICIT OF ENERGY IN A LOCAL ENERGY SYSTEM
A method for handling surplus or deficit of energy in a local energy system (30) is presented. The method comprising: determining (S1) energy status of the local energy system (30) based on data pertaining to the local energy system (30); determining (S2), for each of a plurality of moveable devices (10) comprising an accumulator (20), an accumulator status based on accumulator data pertaining to the respective moveable device (10); scoring (S3), based on the determined respective accumulator statuses and the determined energy status, each of the moveable devices (10); and selecting (S4), based on the respective scores of each of the plurality of moveable devices (10), a moveable device (10) among the plurality of moveable devices (10) to which at least one of control information or navigational information associated to the local energy system (30) is to be sent; and sending the control information and/or the navigational information to the selected moveable device (10). Also a server (40) configured to handling surplus or deficit of energy in a local energy system is presented.
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
B60L 53/63 - Surveillance et commande des stations de charge en réponse à la capacité du réseau
B60L 55/00 - Dispositions relatives à la fourniture d'énergie emmagasinée dans un véhicule à un réseau électrique, c. à. d. du véhicule au réseau [V2G]
A district energy distributing system is disclosed. The system comprises a geothermal heat source system (5) comprising a geothermal heat source (10) and a feed conduit (11) for a flow of geothermally heated water from the geothermal heat source (10). The system further comprises a district feed conduit (22) and a district return conduit (23). The system also comprises a plurality of local heating systems (200; 250), each having an inlet (25) connected to the district feed conduit (22) and an outlet (26) connected to the district return conduit (23), wherein each local heating system (200; 250) is configured to provide hot water and/or comfort heating to a building (40). A central heat exchanger (21) is connected to the feed conduit (11) of the geothermal heat source system (5) such that an incoming flow of geothermally heated water is provided to the central heat exchanger (21). The central heat exchanger (21) is configured to exchange heat from the incoming flow of geothermally heated water to an outgoing flow of heat transfer fluid in the district feed conduit (22), and also to control the temperature of the outgoing flow of heat transfer fluid in the district feed conduit (22) to a temperature of 5-30°C. Further a method of distributing energy to a plurality of buildings (40) is disclosed.
A district energy distributing system comprising a geothermal power plant (50) comprising a first and a second circuit is disclosed. The first circuit comprises a feed conduit (11) for an incoming flow of geothermally heated water from a geothermal heat source (10); a boiler (51) comprising a heat exchanger (52a, 52b, 52c) configured to exchange heat from the incoming flow of geothermally heated water to superheat a working medium of a second circuit of the geothermal power plant (50); and a return conduit (12) for a return flow of cooled water from the boiler (51) to the geothermal heat source (10). The second circuit comprises the boiler (51) configured to superheat the working medium of the second circuit; an expander (53) configured to allow the superheated working medium to expand and to transform the expansion to mechanical work; and a condenser (55) configured to transform the expanded working medium to liquid phase and to heat a heat transfer fluid of a district thermal energy circuit (20). The district thermal energy circuit (20) comprises a plurality of local heating systems (200; 250), each system (200; 250) being configured to provide hot water and/or comfort heating to a building (40). The condenser (55) is configured to heat heat transfer fluid of the district feed conduit (22) to a temperature of 5-30°C. Also, a method of providing mechanical work and of heating heat transfer fluid of a district thermal energy circuit (20) is disclosed.
The present invention relates to a local thermal energy consumer assembly (20) and a local thermal energy generator assembly (30) to be connected to a thermal energy circuit (10) comprising a hot and a cold conduit (12, 14).The local thermal energy consumer assembly(20) is connected via a flow controller (100) to the hot conduit (12). The local thermal energy generator assembly(30) is connected via a flow controller (100) to the cold conduit (14).The flow controller (100) is selectively set in pumping mode or a flowing mode based on a local pressure difference between heat transfer liquid of the hot and cold conduits (12, 14). The present invention also relates to a district thermal energy distribution system, comprising the hot and cold conduits (12, 14). One or more local thermal energy consumer assemblies (20)and/orone or more the thermal energy generator assemblies (30) are connected to the hot and cold conduits (12, 14).
The present invention relates to a flow controller (1) configured to selectively act as a pump or as a flow regulator. The flow controller comprises: an inlet (2) for a fluid; an outlet (3) for the fluid; a pump assembly (10) arranged between the inlet (2) and the outlet (3) and configured to pump the fluid through the flow controller (1) from the inlet (2) to the outlet (3); a hydro electrical generator assembly (20) arranged between the inlet (2) and the outlet (3), the hydro electrical generator assembly (20) being configured to allow the fluid flow through the flow controller (1 ) from the inlet (2) to the outlet (3) and to generate electricity by transforming flow energy of the fluid flowing through the flow controller (1 ) into electricity; and a mode controller (30) configured to selectively set the flow controller (1 ) in a pumping mode or in an electricity generating mode; wherein upon being set in the pumping mode, the mode controller (30) is configured to deactivate the hydro electrical generator assembly (20) and to activate the pump assembly (10); and wherein upon being set in the electricity generating mode, the mode controller (30) is configured to deactivate the pump assembly (10) and to activate the hydro electrical generator assembly (20).
F03B 13/00 - Adaptations des "machines" ou machines motrices pour une utilisation particulière; Combinaisons des "machines" ou machines motrices avec les appareils entraînés ou qu'ils entraînent; Centrales électriques ou ensembles machine-appareil
F04D 29/48 - Moyens de guidage du fluide, p.ex. diffuseurs réglables pour flux unidirectionnel de fluide dans les pompes réversibles
E03B 7/07 - Disposition des appareils, p.ex. filtres, commandes du débit, dispositifs de mesure, siphons, valves, dans les réseaux de canalisations
The present invention relates to a local energy distributing system. The local energy distributing system comprises a local feed conduit (22); a local return conduit (23); a central heat exchanger (21 ) connected to a district heating grid (10) having a district feed conduit (1 1 ) for an incoming flow of district heat transfer fluid having a first temperature in the range of 50-120°C, and a district return conduit (12) for a return flow of district heat transfer fluid having a second temperature, the second temperature being lower than the first temperature, the second temperature being in the range of 40-60°C, wherein the central heat exchanger (21 ) is configured to exchange heat from the incoming flow of district heat transfer fluid to an outgoing flow of local heat transfer fluid in the local feed conduit (22), the outgoing flow of local heat transfer fluid having a temperature of 5-30°C; and a plurality of local heating systems (200), each having an inlet (25) connected to the local feed conduit (22) and an outlet (26) connected to the local return conduit (23), wherein each local heating system (200) is configured to provide hot water and/or comfort heating to a building (40).
The present invention relates to a heat transfer system. The heat transfer system comprises a heating circuit (30) having: a feed conduit (34) for an incoming flow of heat transfer fluid having a first temperature, and a return conduit (36) for a return flow of heat transfer fluid having a second temperature, the second temperature being lower than the first temperature; a cooling circuit (40) having: a feed conduit (44) for an incoming flow of heat transfer fluid having a third temperature, and a return conduit (46) for a return flow of heat transfer fluid having a fourth temperature, the fourth temperature being higher than the third temperature; and a heat pump (50) having: a first heat exchanger (51) having a first circuit (52a) for circulating heat transfer fluid and a second circuit (52b) for circulating heat transfer fluid, wherein the first circuit (52a) has an inlet (53a) and an outlet (53b) connected to the cooling circuit (40), a second heat exchanger (54) having a third circuit (52c) for circulating heat transfer fluid and a fourth circuit (52d) for circulating heat transfer fluid, wherein the fourth circuit (52d) has an inlet (55a) and an outlet (55b) connected to the heating circuit (30), wherein the second circuit (52b) and the third circuit (52c) is a common circuit (56) of the first and second heat exchangers (51, 54); wherein the fourth temperature is lower than the second temperature.
The disclosure relates to a method for controlling heat transfer between a local cooling system and a local heating system, the method comprising: determining a local energyconsumption need (LCC1, LCC2) of the local cooling system; determining a local energy consumption need (LHC1, LHC2) of the local heating system; controlling, based on the local energy consumption need (LCC1, LCC2) of the local cooling system and the local energy consumption need (LHC1, LHC2) of the local heating system, a heat pump (50, 50') connected between the local cooling system and the local heating system and configured to transfer heat from the local cooling system to the local heatingsystem.
The invention refers to a combined cooling and heating system (100) comprising: a district cooling grid (1) having a feed conduit (5) for an incoming flow of cooling fluid having a first temperature, and a return conduit (8) for a return flow of cooling fluid having a second temperature, the second temperature being higher than the first temperature; a local cooling system (300) being configured to absorb heat from a first building (2) and comprising a heat exchanger (9) having a heat exchanger inlet (14a) and a heat exchanger outlet (14b); and a local heating system (200) being configured to heat the first or a second building (2) and comprising a heat pump (10) having a heat pump inlet (15a) and a heat pump outlet (15b). The heat exchanger inlet (14a) is connected to the feed conduit (5) of the district cooling grid (1); and the heat pump inlet (15a) is connected to the return conduit (8) of the district cooling grid (1) and to the heat exchanger outlet (14b).
The invention refers to a heating system (100) comprising a district cooling grid (1) and a local heating system (200) configured to heat a building and/or to heat tap water for the building. The heating system has a feed conduit (5) for an incoming flow of cooling fluid having a first temperature, and a return conduit (8) for a return flow of cooling fluid having a second temperature, the second temperature being higher than the first temperature. The local heating system (200) comprises a heat pump (10) having an inlet (10a) connected to the return conduit (8) of the district cooling grid (1) and an outlet (10b) connected to the feed conduit (5) of the district cooling grid (1).
The present invention relates to athermal server plant(40) arranged to be connected to a thermal energy circuit(10) comprising a hot conduit(12) configured to allow heat transfer liquid of a first temperature to flow therethrough, and a cold conduit(14) configured to allow heat transfer liquid of a second temperature to flow therethrough. The thermal server plant comprises a balancing device(41) arranged to be connected to the hot conduit and to the cold conduit for selectively allowing heat transfer liquid to flow from the hot conduit, via a regulator(42) and a heat exchanger (44), into the cold conduit or allowing heat transfer liquid to flow from the cold conduit, via the regulator and the heat exchanger, into the hot conduit. The flow direction is determined by a pressure difference between the hot and cold conduits. The heat exchanger is configured to alter the temperature of the heat transfer liquid flowing through the balancing device by selectively cool heat transfer liquid from the hot conduit or heat heat transfer liquid from the cold conduit.
The present invention relates to alocal thermal energy consumer assembly(20) and alocal thermal energy generator assembly(30) to be connected to a thermal energy circuit(10) comprising a hot and a cold conduit(12, 14).The local thermal energy consumer assembly(20) is selectively connected, via a pump(24) or a valve(23) to the hot conduit(12). Thelocal thermal energy generator assembly(30) is selectively connected, via a pump(34) or a valve(33) to the cold conduit(14).The use of either the valve(23; 33) or the pump(24; 34)is controlled by determining a local pressure differencebetween heat transfer liquid of the hot and the cold conduits(12, 14).
The present invention relates to a district thermal energy distribution system(1) comprising a thermal energy circuit10 comprising a hot and a cold conduit (12, 14) for allowing flow of heat transfer liquid therethrough, a thermal energy consumer heat exchanger(22) and a thermal energy generator heat exchanger(32). The thermal energy consumer heat exchanger(22) is selectively connected to the hot conduit(12) via a thermal energy consumer valve(23)or a thermal energy consumer pump(24). The thermal energy generator heat exchanger(32) is selectively connected to the cold conduit(14) via a thermal energy generator valve(23) or a thermal energy generator pump (24).
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