[Retracted] Thermal Analysis of the Solar Dish Array Concentrator System

Table 1

Nomenclature.

Simple	Abbreviations
Aa	Aperture area of the collector
Ar	Aperture area of the receiver
Qopt	The rate of the optical energy absorbed by the receiver
Qout	Useful energy delivered to the total incoming solar energy
QLoss	The rate of the energy lost from the receiver to the ambience
	Specular reflectance of the concentrator
	Transmittance of the glass
	Absorbance of the receiver
	Beam insolation incident on the collector aperture
S	Receiver shading factor
T	Averaged receiver temperature
Tamb	Ambient temperature
UL	The overall heat loss coefficient
	Temperature of the fluid exiting the receiver
	Temperature of the fluid entering the receiver
	Convective coefficient
	Radiation coefficient between the receiver (or glass cover) and the ambient
	Stefan–Boltzmann constant
	Emittance of the absorbing surface
	Nusselt number
	Reynolds numbers
	Wind speed
	Diameter of the receiver
N	Viscosity