AIR-CONDITIONING SYSTEM, OPERATION MANAGEMENT METHOD, AND PROGRAM

Registre Brevet WIPO
Numéro d'application JP2020005983
Numéro de publication 2021/166020
Statut Délivré - en vigueur
Date de dépôt 2020-02-17
Date de publication 2021-08-26
Propriétaire HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (Japon)
Inventeur(s)
  • Mori Hayato
  • Yasuda Gen
  • Ohata Ryosuke
  • Tokudi Mikihito

Abrégé

This air-conditioning system is equipped with a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger, and comprises: an acquisition unit that acquires the current value or power value, refrigerant suction pressure, refrigerant discharge pressure, refrigerant discharge temperature, and rotational speed of the compressor; an estimation unit that estimates the current value or power value of the compressor from the time variations in the refrigerant suction pressure, refrigerant discharge pressure, refrigerant discharge temperature, and rotational speed; and an output unit that outputs information relating to the deterioration of the compressor on the basis of the relationship between the estimated current value estimated by the estimation unit and the time variations in the actual current values acquired by the acquisition unit or the relationship between the estimated power value estimated by the estimation unit and the time variations in the actual power values acquired by the acquisition unit.

Classes IPC  ?