In refrigeration, C.S.R. stands for "Capillary Tube, Suction Line, and Receiver." It refers to a specific type of refrigeration system that utilizes these components to control the flow and circulation of the refrigerant.
Here's a brief explanation of each component in the C.S.R. refrigeration system:
Capillary Tube: The capillary tube is a small-diameter copper tube with a precise internal diameter. It acts as the expansion device in the refrigeration system. The capillary tube's function is to regulate the flow of high-pressure liquid refrigerant from the condenser to the low-pressure evaporator. As the refrigerant passes through the capillary tube, it undergoes a pressure drop, leading to rapid expansion and cooling as it enters the evaporator.
Suction Line: The suction line is a larger copper tube that connects the outlet of the evaporator to the inlet of the compressor. It carries the low-pressure, low-temperature vaporized refrigerant from the evaporator back to the compressor for compression and then sends it back to the condenser to start the cycle again.
Receiver: The receiver is a reservoir or storage vessel located after the condenser and before the expansion valve (in this case, the capillary tube). Its purpose is to store excess liquid refrigerant that may have accumulated during the refrigeration cycle. It ensures that only vaporized refrigerant enters the capillary tube, improving the efficiency and performance of the system.
The C.S.R. refrigeration system is a common setup for small, self-contained refrigeration units, such as household refrigerators, freezers, and some air conditioning systems. It is a simple and cost-effective way to control the flow of refrigerant and maintain efficient operation of the refrigeration cycle.