how to reduce the interstage and after stage temperature of reciprocating compressor?

Question

we have a reciprocating compressor which has to function during summer season at ambient temp. of 55 degrees centigrade ,the compressor trips often b/o temperature high . how to control this temperature as ambiient temperature itself is very high.kindly help. its a small compressor 2 suction and 2 discharge valve, attached to a 65 kw motor.

Answer 1

Unless you have a source of cooling water to cool inlet and interstage air (and this would affect discharge pressure) I can't see an answer to your question. It seems to me you need a compressor system designed to operate at the prevailing maximum ambient temperature.

Answer 2

you should consider the thermodynamic cycle for refridgeration: evaporator: evaporation absorbs heat, which cools the air around it. This is the part that makes the cold air in your refrigerator. compressor: This then pressurizes the gas to a point where the gas can condense at room temperature. Compressors require the huge amount of the electricity that refrigerators consume. compression makes the gas hotter. Condenser: Brings the gas back to room temperature via the coils on the back of the refrigerator. It also condenses the gas at high pressure. The throttling valve lowers the pressure of the gas to the pressure at which it can evaporate. Reducing pressure does reduce temperature as well. But let me clarify a point. The amount energy it takes to cool the liquid down to the point of evaporation is significantly less the amount of energy absorbed by evaporating the gas. It's the same principle that says why ice cubes cool water. While the ice cubes are colder than the water, the main driving force is that the heat of melting is significantly higher than the cooling of the water.

Answer 3

You might have to add one more radiator and u can use it with a fan attached to the non driving end of the motor...and can run the cooling water through it which should flow through cylinders of each stage...i hope u understand...