Thermal Storage Capacity and Night Ventilation Performance of a Solar Chimney Combined with Different PCMs

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left" colspan="2">Cover</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left"> Material</td><td class="align_center">Glass</td></tr><tr><td class="align_left"> Dimension</td><td class="align_center">1500 × 1000 × 8 mm</td></tr><tr><td class="align_left"> Surface coating</td><td class="align_center">0.90</td></tr><tr><td class="align_left" colspan="2">Absorber</td></tr><tr><td class="align_left"> Plate</td><td class="align_center">Aluminum</td></tr><tr><td class="align_left"> Thickness</td><td class="align_center">2 mm</td></tr><tr><td class="align_left"> Surface coating</td><td class="align_center">0.94</td></tr><tr><td class="align_left">PCMs</td><td class="align_center">Myristoyl<br/>Dodecylic acid<br/>Myristelaidic acid<br/>Palmitic acid</td></tr><tr><td class="align_left">Melting temperature</td><td class="align_center">38°C, 44°C, 50°C, 63°C</td></tr><tr><td class="align_left">Thickness of PCM</td><td class="align_center">40 mm</td></tr><tr><td class="align_left" colspan="2">Gap</td></tr><tr><td class="align_left"> Absorber plate to glass</td><td class="align_center">200 mm</td></tr><tr><td class="align_left" colspan="2">Insulation material</td></tr><tr><td class="align_left"> Extruded insulation panels</td><td class="align_center">30 mm</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Specifications of the solar chimney and the thermo-physical properties of PCM.

International Journal of Photoenergy

tab1

Table 1

Table 1: Thermal Storage Capacity and Night Ventilation Performance of a Solar Chimney Combined with Different PCMs 