Fig.Ā 13
From: Application-based design of the Fresnel lens solar concentrator

Symmetrical heat maps of the longitudinal cut-plane across the center of the engine heater placed focally at a 600Ā s, b 1200Ā s and c 2400 s
From: Application-based design of the Fresnel lens solar concentrator
Symmetrical heat maps of the longitudinal cut-plane across the center of the engine heater placed focally at a 600Ā s, b 1200Ā s and c 2400 s