Electricity Consumption Model of Domestic Air-to-Water Heat Pumps in Relative Parameters

The paper presents a method for obtaining analytical dependences of the heat pump heat capacity and electrical power on the environment and the coolant parameters. A model based on polynomial approximation in two independent parameters is offered. The paper shows the model identification for the 7.5-12.5 kW air-to-water heat pumps from one manufacturer. The accuracy of the obtained model is estimated.