Experimental Study of Onset of Nucleate Boiling in Vertical Rectangular Channels with Different Flow Path Heights

Table 3

Measurement accuracy.

Measurement signals		Measurement instruments	Measurement accuracy
Temperature	Inlet and outlet fluid temperature	Φ6 mm Pt100 thermal resistors	±0.5°C
	Wall temperature	Φ1 mm K-type thermocouples	±0.5°C
Pressure	Absolute pressure	3151SA pressure gauge	0.15%
Flow mass	Mass flow rate	PEL-L024 turbine flow meter	1.25%
Voltage	Voltage of test section	D65-V voltmeter	0.2%
Current	Current of test section	D65-A ammeter	0.2%
Length	Size of test section	Meter stick	1 mm
	Size of cross-section	Vernier calliper	0.01 mm