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Journal of Refrigeration, Air conditioning, Heating and ventilation

Vapor Compression Refrigeration System

  1. Mohit Garg

Abstract

Refrigeration has been achieved in a variety of methods throughout history, but due to their efficiency anddurability, vapor-compression refrigeration systems (VCRS) have become the favored option. A vapor-compression refrigeration system, in essence, is a system that uses liquid refrigerant in a closed systemthat circulates it through four stages of compression and expansion, transforming it from liquid to vapor.As a result of this change, heat is either absorbed or ejected by the system, causing a temperature changein the surrounding air passing through the unit's components. This cycle is used to cool nearly all of therefrigeration systems we use today. A vapor-compression refrigeration system is useful in the chemicalprocess industry (CPI) because it can cover a wide range of heating and cooling target temperatures byadjusting pressure, as well as lowering process temperatures considerably below ambient. An ethyleneplant typically uses a cascade refrigeration system because it is one of the most sophisticated and energy-intensive operations in the CPI (CRS). Each component in a CRS has its own refrigeration cycle, whichconsists of numerous temperature/pressure levels. One of the various refrigeration cycles, vapor-compression refrigeration, or vapor-compression refrigeration system (VCRS), in which the refrigerantgo through the phase shifts, is the most extensively used method for air-conditioning buildings andautomobiles. It's also utilized in freezers, large-scale warehouses for chilled or frozen food and meatstorage, refrigerated trucks and railroad coaches, and a variety of other commercial and industrialservices. Among the various types of industrial operations that use big vapor-compression refrigerationsystems are oil refineries, petrochemical and chemical processing plants, and natural gas processingplants. Two compressors can also be used in cascade refrigeration systems.

Keywords

References (15)

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