From: Influence of operating conditions on solar energy utilization efficiency of flat plate solar collector
Test parameters
Test instrument
Type
Accuracy
Solar radiation intensity
Solar pyrometer
TBQ-2
≤ 0.2%
Water flow
Ultrasonic flowmeter
TUF-JZ200SW
Temperature
Thermal resistance
PT100
± 0.2%
Data acquisition unit
JK4000
≤ 0.3%