scholarly journals EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF SOLAR FLUX DENSITY DISTRIBUTION OVER FLAT PLATE RECEIVER OF MODEL HELIOSTAT SYSTEM

2020 ◽  
pp. 312-322
Author(s):  
Prakash GADHE ◽  
Shivalingappa SAPALİ ◽  
Govind KULKARNİ
Keyword(s):  
Density Distribution ◽  
Flat Plate ◽  
Flux Density ◽  
Solar Flux ◽  
Numerical Investigations ◽  
Flux Density Distribution

Solar Flux-Density Distribution due to Partially Shaded/Blocked Mirrors Using the Separation of Variables/Superposition Technique With Polynomial and Gaussian Sunshapes

1996 ◽  
Vol 118 (2) ◽  
pp. 107-114 ◽  
Author(s):  
M. Elsayed ◽  
K. A. Fathalah
Keyword(s):  
Density Distribution ◽  
Flux Density ◽  
Numerical Technique ◽  
Separation Of Variables ◽  
Numerical Procedure ◽  
Solar Flux ◽  
Partial Shading ◽  
Basic Flux ◽  
Superposition Technique ◽  
Flux Density Distribution

In a previous work (El Sayed et al., 1994), the separation of a variable/superposition technique was used to predict the flux density distribution on the receiver surfaces of solar central receiver plants. In this paper further developments of the technique are given. A numerical technique is derived to carry out the convolution of the sunshape and error density functions. Also, a simplified numerical procedure is presented to determine the basic flux density function on which the technique depends. The technique is used to predict the receiver solar flux distribution using two sunshapes, polynomial and Gaussian distributions. The results predicted with the technique are validated by comparison with experimental results from mirrors both with and without partial shading/blocking of their surfaces.

Measurements of solar flux density distribution on a plane receiver due to a flat heliostat

Solar Energy ◽  
1995 ◽  
Vol 54 (6) ◽  
pp. 403-411 ◽  
Author(s):  
Moustafa M. Elsayed ◽  
Kadry A. Fathalah ◽  
Omar M. Al-Rabghi
Keyword(s):  
Density Distribution ◽  
Flux Density ◽  
Solar Flux ◽  
Flux Density Distribution

scholarly journals Study on the Optical Properties of the Point-Focus Fresnel System

2021 ◽  
Vol 13 (18) ◽  
pp. 10367
Author(s):  
Fei Shen ◽  
Weidong Huang
Keyword(s):  
Density Distribution ◽  
Flux Density ◽  
Optical System ◽  
Focal Length ◽  
Optical Design ◽  
Solar Flux ◽  
Characteristic Analysis ◽  
Design And Optimization ◽  
Receiver Plane ◽  
Flux Density Distribution

The characteristic analysis of the flux formed by the heliostat in the optical system is the basis in design and optimization of the whole system. In this paper, our research subject is a pilot installation of the point-focus Fresnel system, which is a new optical design between the tower system and the dish system. For the optical system, it is very important to accurately calculate the solar flux density distribution on the receiver plane. Aiming at the case that the focal length of the heliostat is not equal to the distance from the center of the heliostat to the center of the receiver plane, based on the projection, an approximate calculation method is proposed. Using the method to calculate the solar flux density distribution of the point-focus Fresnel system, and the results are compared with that calculated by SolTrace code, it is found that the solar flux density distribution of both is relatively consistent in shape and numerical value, which verifies the accuracy of the method and it can be used for design and optimization of the point-focus Fresnel system.

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