Optimal control system for refrigeration-coupled thermal energy

Heat exchange – Regenerator – Checker brick structure

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165 18, 165 28, F25B 1300

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active

049400797

ABSTRACT:
A refrigeration-coupled thermal energy storage control system includes apparatus and methodology for establishing target cooling and heating storage conditions, and selecting between cooling and heating modes, based upon outdoor temperature history, and for operating the system until the target storage conditions are achieved. In the cooling mode, cooling storage quantity increases with increases in outdoor temperature, and in the heating mode heating storage quantity increases with decreases in outdoor temperature. The system further includes apparatus and methodology for biasing operation of cooling, heating and domestic hot water production modes during off-peak periods, rather than during one-peak periods. The system incorporates logic for fan coil pump seasonal interlocking, outdoor heat exchanger fan operation, outdoor heat exchanger coil defrosting, and compressor crankcase heater operation.

REFERENCES:
patent: 4061185 (1977-12-01), Faiczak
patent: 4292811 (1981-10-01), Kamejima et al.
patent: 4693089 (1987-09-01), Bourne et al.
"Agastat Series PCU--Ultrasonic Proximity Sensor--Installation and Operating Information Analog Output Models", Jun., 1986.
"AGASTAT Ultrasonic Proximity Sensor", Steven Engineering, Jan., 1987.
"AGASTAT Inductive/Capacitive Proximity Sensors", Steven Engineering, May, 1986.

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