Research Article
Performance of a Pebble Bed Thermal Storage Integrated with Concentrating Parabolic Solar Collector for Cooking
Table 2
Bench mark experimental data [
9] and calculated results.
| Parameters | Nomenclature | Values | Unit |
| Porosity | | 0.38 | [−] | Length of the storage | L | 0.9 | [m] | Diameter of the storage | D | 0.3 | [m] | Optimum diameter of pebbles | | 0.02 | [m] | Mass flow rate | | 0.0495 | [Kg/s] | Inlet/outlet pipe diameter | | 0.05 | [m] | Thickness of stainless steel of the storage stack | S | 0.002 | [m] | Pebble specific heat capacity | | 880 50 | [J/kgk] | Pebble thermal conductivity | | 2.5 | [W/mk] | Density of absorber | | 2940 | [kg/m3] | Specific heat capacity of absorber | | 1194 | [J/kgK] | Inflow temperature | | 355 | [°C] | Over all heat transfer coefficient | | 0.4 | [W/m2k] |
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