Refrigeration of air or water for industrial use - by supplementary cooling of condensate after conversion to liquid phase, and reducing condensate to set temperature but with variable pressure

摘要

The refrigeration process delivers, under compression, a refrigerant fluid in gaseous phase. The fluid is cooled and condenses to its liquid phase. The fluid in its liquid phase is then cooled again till it reaches a preset constant temperature, under pressure and temperature values that vary as a function of the condensation conditions. The pressure of the fluid after condensation is variable. When this pressure exceeds a set level the fluid passage is enlarged, without changing the phase. The fluid is then delivered through a thermostatic expander (23) to an evaporator (3), causing refrigeration of the air or water to be processed. The heat drawn from the air or water converts the refrigerant fluid to its gaseous phase.