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Journal of Uncertainty Analysis and Applications

Table 2 Estimated uncertainties for input variables

From: Transient Uncertainty Analysis in Solar Thermal System Modeling

Input variable

Source

Standard random uncertainty

Standard systematic uncertainty

I diff

Hourly values given in TMY3

1% of maximum daily

10%

I beam

Hourly values given in TMY3

1% of maximum daily

16%

T amb

Typical uncertainty in temperature sensors

1 °C

1 °C

q LD

Estimation (engineering judgment)

5 W

5 W

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