Table 2 Simulation parameters
Designation | Value | Unit |
|---|---|---|
Initial temperature | 20 | °C |
Receiver length step | 0.07 | m |
Storage length step | 0.22 | m |
Receiver plate surface area | 0.008 | m2 |
Storage cross-section area | 0.01 | m2 |
Receiver lateral surface area | 0.021 | m2 |
Storage lateral surface area | 0.078 | m2 |
Concentrator specific heat | 800 | J kg−1 °C−1 |
Glass specific heat | 800 | J kg−1 °C−1 |
Heat transfer fluid | SAE-40 oil | |
Fluid specific heat | 1850–2350 | J kg−1 °C−1 |
Receiver plate specific heat | 470 | J kg−1 °C−1 |
Fluid thermal conductivity | 0.137–0.125 | W m−1 °C−1 |
Insulation thermal conductivity | 0.04 | W m−1 °C−1 |
Receiver plate mass | 0.09 | kg |
Mass flow rate | 0.005 | kg s−1 |
CHTC concentrator to ambient | 9.0 | W m−2 °C−1 |
RHTC concentrator to sky | 1.0 | W m−2 °C−1 |
RHTC concentrator to glass | 0.1 | W m−2 °C−1 |
CHTC glass to ambient | 12.0 | W m−2 °C−1 |
RHTC glass to sky | 0.0 | W m−2 °C−1 |
CHTC plate to glass | 6.0 | W m−2 °C−1 |
RHTC plate to glass | 6.0 | W m−2 °C−1 |
CHTC plate to fluid | 87.0 | W m−2 °C−1 |
GHTC receiver to ambient | 18.0 | W m−2 °C−1 |
GHTC storage to ambient | 0.5 | W m−2 °C−1 |