Thermal Performance Analysis of Low-GWP Refrigerants in Automotive Air-Conditioning System

Table 2

Uncertainties of the measuring instruments and calculated parameters.

Item	Uncertainty (%)
Thermocouples (type-k)	±2.1
Hotwire anemometer	±3.3
Refrigerant flowmeter	±2.9
Refrigerant pressure gauge	±3
Refrigeration capacity	±6.3
Compressor power	±7.2
COP	±5.6
Heat rejection	±7.3
Total energy destruction	±7.9