Design and Optimization of Fresnel Lens for High Concentration Photovoltaic System

Table 1

The calculated energy efficiency of the conventional design and the novel design for entire Fresnel lens.

Design method	Efficiency		Effect of temperature
Conventional method
𝜆𝑚=0.54 𝜇m	SWS^d	92.4%	62.5% (↓)
	MWS^e	64.73% (↓)
𝜆𝑚=1.05 𝜇m	SWS	92.7%	62.14% (↓)
	MWS	64.08% (↓)
New method
Consider SS^a	73.84% (↑)		—
Consider SS, CR^b	75.76% (↑)		—
Consider SS, CR, 𝑇^c	75.32%		—

aSolar spectrum; ^bcell response; ^ctemperature; ^dsingle wavelength; ^emultiple wavelengths.