Table 3.

Individual uncertainty of the independently measured quantities.

Symbol	Quantity	Measurement method	Uncertainty
D	Diameter of the target area	Rulers	1.6 × 10−3 m
ρ	Density of test section	NIST website	1%
cp	Specific heat capacity of the test section	NIST website	5%
ΔT	Temperature difference between the initial and the end of the test	T-type thermocouple	1.5%
τ	Thickness of test section	Calipers	3 × 105 m
hfg	Latent heat of nitrogen	NIST website	5%
${\dot{m}}_l$	Mass flow rate of liquid nitrogen	Coriolis flow meter	0.3%