An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements

This study aimed to evaluate the applicability of outdoor air enthalpy difference method for source heat pumps (ASHP) in operation through quantitative analysis using field tests. In this context, measurements were performed on a single ASHP, and results compared with other situ measurement methods. The main are as follows. distribution discharge temperature unit suggested that between hub tip outlet can represent temperature, enabling further simplification procedures. mean error average cooling capacity was 8% refrigerant method. summary, may require additional increase reliability, but considering advantage relatively easy measurement, it is considered suitable short-term diagnosis ASHP performance.