Effects of Compressor Overheating
1. The oil loses its lubricating abilities as soon as the temperature inside the compressor casing exceeds the limit recommended by the manufacturer. Improper lubrication could result in premature wear and damage to the cylinder, bearings, and piston rings.
2. The oil and refrigerant exposed to high temperatures undergo thermal decomposition. This reaction may accelerate the erosive wear rate of system components. Additionally, the solid particulate matter resulting from oil and refrigerant decomposition could line the internal surfaces of the compressor, control valves, and pipes, eventually causing compressor failure.
3. The circuit breaker trips repeatedly. Because an overheated compressor draws too much power, most systems are equipped with a circuit breaker that trips under overload conditions to protect the system. A circuit breaker that keeps tripping can hinder the entire cooling process, negatively affecting refrigeration efficiency.
How to Calculate Cooling ratio?
Cooling ratio calculator uses Cooling Ratio = (Suction Temperature at High Pressure Compressor-Discharge Temperature at High Pressure Compressor)/(Suction Temperature at High Pressure Compressor-Suction Temperature at Low Pressure Compressor) to calculate the Cooling Ratio, Cooling ratio formula is defined as a dimensionless value that expresses the efficiency of a refrigeration system, comparing the temperature differences between the hot and cold sides of the system, providing a measure of the system's ability to transfer heat. Cooling Ratio is denoted by q symbol.
How to calculate Cooling ratio using this online calculator? To use this online calculator for Cooling ratio, enter Suction Temperature at High Pressure Compressor (T2), Discharge Temperature at High Pressure Compressor (T3) & Suction Temperature at Low Pressure Compressor (T1) and hit the calculate button. Here is how the Cooling ratio calculation can be explained with given input values -> 0.9 = (400-310)/(400-300).