7.5.4.19 Pset_CompressorPHistory

The product of the ideal capacity and the overall volumetric efficiency of the compressor.

Energy efficiency ratio (EER).

The Coefficient of performance (COP) is the ratio of heat removed to energy input. The energy input may be obtained by multiplying Pset_DistributionPortPHistoryGas.FlowRate on the 'Fuel' port of the IfcChiller by Pset_MaterialFuel.LowerHeatingValue. The IfcDistributionPort for fuel has an associated IfcMaterial with fuel properties and is assigned to an IfcPerformanceHistory object nested within this IfcPerformanceHistory object.

Ratio of the actual volume of gas entering the compressor to the theoretical displacement of the compressor.

Ratio of the work required for isentropic compression of the gas to the work delivered to the gas within the compression volume (as obtained by measurement).

The objects operational mechanical efficiency.

Ratio of the work (as measured) delivered to the gas to the work input to the compressor shaft.

Ratio of the work required for isentropic compression of the gas to work input to the compressor shaft.

Ratio of the thermal cooling capacity to electrical input.

The actual shaft power input to the compressor.

Input power to the compressor motor.

Lubricant pump heat gain.

Friction heat gain.

Compressor total heat gain.

Ratio of actual power to full load power as a quadratic function of part load, at certain condensing and evaporating temperature, FracFullLoadPower = f ( PartLoadRatio).