Experimental Study of a Novel Direct-Expansion Variable Frequency Finned Solar/Air-Assisted Heat Pump Water Heater

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Component</td><td class="align_center">Air mode</td><td class="align_center">Solar mode</td><td class="align_center">Dual mode</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Glass cover plate</td><td class="align_center">Uncover</td><td class="align_center">Cover</td><td class="align_center">Uncover</td></tr><tr><td class="align_left">Fan</td><td class="align_center">Fast</td><td class="align_center">Off</td><td class="align_center">Slow</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Three operating modes of the DX-SAHPWH system.</div>

International Journal of Photoenergy

tab2

Table 2

Table 2: Experimental Study of a Novel Direct-Expansion Variable Frequency Finned Solar/Air-Assisted Heat Pump Water Heater 