Heat transport in Dewar-type evacuated tubular collectors

Thermal performances comparisons of the glass evacuated tube solar collectors with shapes of absorber tube

“…In the 1980s, most of the studies on performance improvement tried to enhance each component in the collector. Optimal operating conditions and performance variables for various conditions [2][3][4], manifold designs [5][6][7], optical designs [8,9], solar collector tubes array [8] and heat transport in solar collector tube [10], etc. were representative topics of that time.…”