Table 5 Uncertainty values associated with key parameters

From: Cryogenic helium subsurface pressurization in terrestrial and low-gravity: experiments and flow visualization

Variable

Value

Uncertainty Value

Dtube(mm)

16.00

0.12

Ti(K)

Measured via TCs

1.00

Tl (K) at 101.3 kPa

77.34

0.29

Tl(K) at 122.0 kPa

78.97

0.50

µl(µPa∙s) at 101.3 kPa

160.66

1.79

µl(µPa∙s) at 122.0 kPa

150.90

2.90

ρl (kg/m3) at 101.3 kPa

806.08

1.29

ρl (kg/m3) at 122.0 kPa

798.72

2.30

\({\dot{m}}_{{he}}\)(kg/s)

Measured via MCs

0.02%

P(KPa)

Measured via PT

0.28

  1. Uncertainty values are of the same units as the variable.
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