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ESTIMATION APPARATUS OF HEAT TRANSFER MEDIUM FLOW RATE, HEAT SOURCE MACHINE, AND ESTIMATION METHOD OF HEAT TRANSFER MEDIUM FLOW RATE
ESTIMATION APPARATUS OF HEAT TRANSFER MEDIUM FLOW RATE, HEAT SOURCE MACHINE, AND ESTIMATION METHOD OF HEAT TRANSFER MEDIUM FLOW RATE
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机译:传热介质流速的估算装置,热源机及传热介质流速的估算方法
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摘要
A required-circulated-refrigerant flow-rate calculating portion provided in a chilled-water flow-rate estimation calculation portion calculates an evaporator exchanged heat quantity exchanged between a refrigerant and chilled water at an evaporator based on a planned chilled-water-flow-rate value and a measured value of the temperature of the chilled water flowing in the evaporator, and calculates an evaporator-refrigerant flow rate based on that evaporator exchanged heat quantity. Then, a circulated-chilled-water flow-rate back-calculating portion back-calculates an evaporator-refrigerant flow rate based on the calculated evaporator-refrigerant flow rate and a ratio between a set value of differential pressure between a condenser and the evaporator and a measured value of that differential pressure, back-calculates an evaporator exchanged heat quantity exchanged between the refrigerant and the chilled water at the evaporator from the back-calculated evaporator-refrigerant flow rate, and back-calculates the flow rate of the chilled water.
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