TURBO-REFRIGERATOR, REFRIGERATING SYSTEM, AND THEIR CONTROL METHOD

摘要

Provided is a turbo-refrigerator, which can make a temperature adjustment even in case a target heat load is low. The turbo-refrigerator (11) comprises a refrigerator-side control unit for controlling the operation so that a cold water exit temperature may be a desired value. In case the target heat load is at or lower than a predetermined value, the refrigerator-side control unit outputs a target cold water flow rate satisfying the target heat load, on the basis of both a current cold water entrance temperature or a current temperature of the cold water to flow into an evaporator and a target cold water exit temperature or a target value of the cold water exit temperature.