Volumetric Efficiency is a measure of how effectively a compressor is able to compress the refrigerant. Heat of Compression CalculatorĮnthalpy of Vapor Leaving Compressor (hlc): Btu/lbĮnthalpy of Vapor Entering Compressor (hec): Btu/lb Where h is the heat of compression in Btu/lb, hlc is the enthalpy of the vapor leaving the compressor in Btu/lb and hec is the enthalpy of the vapor entering the compressor in Btu/lb. It is the difference between the enthalpy of the vapor leaving the compressor and the enthalpy of the vapor entering the compressor. Heat of compression is a measure of the amount of heat added to the refrigerant by the compressor as it compresses the refrigerant. Volume of Gas Entering Compressor (v): ft3/lb Where d is the compressor displacement in ft3/min, c is the capacity in Btu/min, v is the volume of gas entering compressor in ft3/lb, and NRE is the net refrigeration effect in Btu/lb. The formula for compressor displacement is: ![]() It is the product of the volume of the gas entering the compressor and the compressor’s capacity divided by the net refrigeration effect. Capacity CalculatorĬompressor Displacement refers to the volume of the refrigerant that is compressed by the compressor per unit time. Where c is the capacity in Btu/min, q is the refrigerant circulated in lb/min, and NRE is the net refrigeration effect in Btu/lb. ![]() It is the product of the refrigerant circulated and the net refrigeration effect. Net Refrigeration Effect CalculatorĮnthalpy of Vapor Leaving Evaporator (hl): Btu/lbĮnthalpy of Vapor Entering Evaporator (he): Btu/lbĬapacity is a measure of the amount of cooling provided by a refrigeration or air conditioning system. Where NRE is the net refrigeration effect in Btu/lb, hl is the enthalpy of the vapor leaving the evaporator in Btu/lb and he is the enthalpy of the vapor entering the evaporator in Btu/lb. Thermostatic expansion valves (TEV) Superheat It is the difference between the enthalpy of the vapor leaving the evaporator and the enthalpy of the vapor entering the evaporator. Net Refrigeration Effect (NRE) is a measure of the amount of heat that is absorbed by the refrigerant as it flows through a refrigeration or air conditioning system. Coefficient of Performance (COP) Calculator Where COP is the coefficient of performance, NRE is the net refrigeration effect in Btu/lb, and h is the heat of compression in Btu/lb. It is defined as the ratio of the amount of cooling provided by the system to the amount of energy required to operate the system. The Coefficient of Performance (COP) is a measure of the efficiency of a refrigeration or air conditioning system. Compression Horsepower per Ton CalculatorĬompression Horsepower per Ton (p): hp/Ton Where p is the compressor horsepower per Ton (hp/Ton) and COP is the coefficient of performance. The third formula for compression horsepower per Ton is: Compression Horsepower Calculator (method 2) Where P is the compression power in horsepower (hp), c is the capacity in Btu/min, and COP is the coefficient of performance. The second formula for compression horsepower is: Compression Horsepower Calculator (method 1) Where P is the compression power in horsepower (hp), and W is the compression work in Btu/min. The first formula for compression horsepower is: It can be calculated using two different formulas, both of which are based on the compression work done by the compressor. By knowing the compression work and the amount of refrigerant circulated, it is possible to calculate the coefficient of performance (COP) of the system, which is a measure of its energy efficiency.Īir Conditioning Condensate calculator Compression Work CalculatorĬompression horsepower is a measure of the power required to compress the refrigerant in a refrigeration or air conditioning system. ![]() The compression work formula is a simple yet powerful tool that can be used to determine the efficiency of a refrigeration system. In this formula, W represents the compression work in Btu/min, h represents the heat of compression in Btu/lb, and q represents the refrigerant circulated in lb/min. The amount of work done by a compressor can be calculated using the compression work formula, which is given by `W = h * q`. In this process, the compressor increases the pressure and temperature of the refrigerant, causing it to absorb heat from the surrounding air or liquid. It refers to the work done by a compressor to compress the refrigerant, which is essential for the refrigeration process to take place. 9.1 Compression Ratio Calculator Compression WorkĬompression work is a fundamental concept in the field of refrigeration and air conditioning.
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