Table 4. Open in new tab Solar field... | Oxford Academic

Table 4.

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Solar field energy output 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	0.0009	0.0000	12.60	1.29 × 10–4	########
Cp	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.270	########	########
Tout	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.378	4.81 × 10–4	2.79 × 10–4
Tin	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.378	4.81 × 10–4	8.25 × 10–5

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	0.0009	0.0000	12.60	1.29 × 10–4	########
Cp	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.270	########	########
Tout	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.378	4.81 × 10–4	2.79 × 10–4
Tin	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.378	4.81 × 10–4	8.25 × 10–5

Table 4.

Open in new tab

Solar field energy output 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	0.0009	0.0000	12.60	1.29 × 10–4	########
Cp	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.270	########	########
Tout	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.378	4.81 × 10–4	2.79 × 10–4
Tin	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.378	4.81 × 10–4	8.25 × 10–5

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	0.0009	0.0000	12.60	1.29 × 10–4	########
Cp	HTF specific heat	kJ/kg °C	4.20	0.0000	90	0.0000	0.0000	0.270	########	########
Tout	HTF outlet temperature	°C	46.1	0.4189	90	0.0580	0.0442	0.378	4.81 × 10–4	2.79 × 10–4
Tin	HTF inlet temperature	°C	43.1	0.2280	90	0.0580	0.0240	0.378	4.81 × 10–4	8.25 × 10–5