Improvement of Heat Pipe Solar Collector Thermal Efficiency Using Al₂O₃/Water and TiO₂/Water Nanofluids

Table 6

Uncertainty calculated parameters and uncertainty values.

Device name	Measuring range	Accuracy	Total uncertainty
Thermocouple T type (LZS-15)	-40/+350°C	±0.5°C	±0.5139
Datalogger UDL200	-200/+400°C	±%0.2
Pyranometer (SM-206)	1-3999 W/m^2	±%5
Flow meter (LZS-15)	10-100 kg/h	±%4