Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector

Table 1

Parameters of the PTC, cavity, and tube absorber.

Parameter/unit	Value
Major axis/mm	100
Minor axis/mm	60
PTC focal distance/mm	800
Elliptic focal distance/mm	80
PTC open width/mm	850
Absorber tube radius/mm	18
Elliptic cavity open length/mm	12