Table 6. Open in new tab Solar field...

Parameter information (in parameter units)	Uncertainty contribution of parameters to the result (in units squared)
$\dot{m}$	Mass flow rate	kg/s	0.09	0.0000	90	0.000 90	0.0000	0.007 743 41	4.84 × 10^–11	0.000 000 0
C_p	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.000 165 93	0.000 000 0	0.000 000 0
T_out	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.000 232 30	1.81 × 10^–10	1.05 × 10^–10
T_in	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.000 232 30	1.81 × 10^–10	3.10 × 10^–11
G_b	Direct normal irradiance	W/m²	899	4.8162	90	18.020	0.5077	0.000 696 91	1.58 × 10^–4	1.25 × 10^–7
A_a	Effective aperture area	m²	1.81	0.0000	90	0.0000	0.0000	0.000 696 91	0.000 000 0	0.000 000 0

Parameter information (in parameter units)

Uncertainty contribution of parameters to the result (in units squared)

Symbol

Description

Units

Nominal value

Standard deviation

σ_{i}

Number of measurements

N_{i}

Absolute systematic standard uncertainty

{b_{\bar{X}}}_{_{i}}

Absolute random standard uncertainty

{S_{\bar{X}}}_{_{i}}

Absolute sensitivity

\frac{\partial R}{\partial {\bar{X}}_{i}}

Absolute systematic standard uncertainty contribution

{(\frac{\partial R}{\partial {\bar{X}}_{i}} {b_{\bar{X}}}_{_{i}})}^{2}

Absolute random standard uncertainty contribution

{(\frac{\partial R}{\partial {\bar{X}}_{i}} {S_{\bar{X}}}_{_{i}})}^{2}

\dot{m}

Mass flow rate

kg/s

0.09

0.0000

0.000 90

0.0000

0.007 743 41

4.84 × 10^–11

0.000 000 0

C_p

HTF specific heat

kJ/kg °C

4.20

0.0000

0.000 165 93

0.000 000 0

T_out

HTF outlet temperature

°C

46.1

0.4189

0.0580

0.0442

0.000 232 30

1.81 × 10^–10

1.05 × 10^–10

T_in

HTF inlet temperature

°C

43.1

0.2280

0.0580

0.0240

0.000 232 30

1.81 × 10^–10

3.10 × 10^–11

G_b

Direct normal irradiance

W/m²

899

4.8162

18.020

0.5077

0.000 696 91

1.58 × 10^–4

1.25 × 10^–7

A_a

Effective aperture area

m²

1.81

0.0000

0.000 696 91

0.000 000 0

Parameter information (in parameter units)	Uncertainty contribution of parameters to the result (in units squared)
$\dot{m}$	Mass flow rate	kg/s	0.09	0.0000	90	0.000 90	0.0000	0.007 743 41	4.84 × 10^–11	0.000 000 0
C_p	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.000 165 93	0.000 000 0	0.000 000 0
T_out	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.000 232 30	1.81 × 10^–10	1.05 × 10^–10
T_in	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.000 232 30	1.81 × 10^–10	3.10 × 10^–11
G_b	Direct normal irradiance	W/m²	899	4.8162	90	18.020	0.5077	0.000 696 91	1.58 × 10^–4	1.25 × 10^–7
A_a	Effective aperture area	m²	1.81	0.0000	90	0.0000	0.0000	0.000 696 91	0.000 000 0	0.000 000 0

Table 6.

Open in new tab

Solar field thermal efficiency uncertainty for measured data.

Parameter information (in parameter units)									Uncertainty contribution of parameters to the result (in units squared)
Symbol	Description	Units	Nominal value	Standard deviation $σ_{i}$	Number of measurements $N_{i}$	Absolute systematic standard uncertainty ${b_{\bar{X}}}_{_{i}}$	Absolute random standard uncertainty ${S_{\bar{X}}}_{_{i}}$	Absolute sensitivity $\frac{\partial R}{\partial {\bar{X}}_{i}}$	Absolute systematic standard uncertainty contribution ${(\frac{\partial R}{\partial {\bar{X}}_{i}} {b_{\bar{X}}}_{_{i}})}^{2}$	Absolute random standard uncertainty contribution ${(\frac{\partial R}{\partial {\bar{X}}_{i}} {S_{\bar{X}}}_{_{i}})}^{2}$
$\dot{m}$	Mass flow rate	kg/s	0.09	0.0000	90	0.000 90	0.0000	0.007 743 41	4.84 × 10^–11	0.000 000 0
C_p	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.000 165 93	0.000 000 0	0.000 000 0
T_out	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.000 232 30	1.81 × 10^–10	1.05 × 10^–10
T_in	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.000 232 30	1.81 × 10^–10	3.10 × 10^–11
G_b	Direct normal irradiance	W/m²	899	4.8162	90	18.020	0.5077	0.000 696 91	1.58 × 10^–4	1.25 × 10^–7
A_a	Effective aperture area	m²	1.81	0.0000	90	0.0000	0.0000	0.000 696 91	0.000 000 0	0.000 000 0

Parameter information (in parameter units)									Uncertainty contribution of parameters to the result (in units squared)
Symbol	Description	Units	Nominal value	Standard deviation $σ_{i}$	Number of measurements $N_{i}$	Absolute systematic standard uncertainty ${b_{\bar{X}}}_{_{i}}$	Absolute random standard uncertainty ${S_{\bar{X}}}_{_{i}}$	Absolute sensitivity $\frac{\partial R}{\partial {\bar{X}}_{i}}$	Absolute systematic standard uncertainty contribution ${(\frac{\partial R}{\partial {\bar{X}}_{i}} {b_{\bar{X}}}_{_{i}})}^{2}$	Absolute random standard uncertainty contribution ${(\frac{\partial R}{\partial {\bar{X}}_{i}} {S_{\bar{X}}}_{_{i}})}^{2}$
$\dot{m}$	Mass flow rate	kg/s	0.09	0.0000	90	0.000 90	0.0000	0.007 743 41	4.84 × 10^–11	0.000 000 0
C_p	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.000 165 93	0.000 000 0	0.000 000 0
T_out	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.000 232 30	1.81 × 10^–10	1.05 × 10^–10
T_in	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.000 232 30	1.81 × 10^–10	3.10 × 10^–11
G_b	Direct normal irradiance	W/m²	899	4.8162	90	18.020	0.5077	0.000 696 91	1.58 × 10^–4	1.25 × 10^–7
A_a	Effective aperture area	m²	1.81	0.0000	90	0.0000	0.0000	0.000 696 91	0.000 000 0	0.000 000 0

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