scholarly journals Optical design and optimization of parabolic dish solar concentrator with a cavity hybrid receiver

2016 ◽  
Author(s):  
R. Blázquez ◽  
J. Carballo ◽  
M. Silva
Keyword(s):  
Optical Design ◽  
Solar Concentrator ◽  
Design And Optimization ◽  
Parabolic Dish

scholarly journals Ray Tracing Study of Optical Characteristics of the Solar Image in the Receiver for a Thermal Solar Parabolic Dish Collector

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Saša R. Pavlovic ◽  
Velimir P. Stefanovic
Keyword(s):  
Ray Tracing ◽  
Low Cost ◽  
Optical Design ◽  
Solar Concentrator ◽  
Solar Collectors ◽  
Focal Distance ◽  
Medium Temperature ◽  
Parabolic Dish ◽  
Parabolic Dish Concentrator ◽  
Temperature Levels

This study presents the geometric aspects of the focal image for a solar parabolic concentrator (SPC) using the ray tracing technique to establish parameters that allow the designation of the most suitable geometry for coupling the SPC to absorber-receiver. The efficient conversion of solar radiation into heat at these temperature levels requires a use of concentrating solar collectors. In this paper detailed optical design of the solar parabolic dish concentrator is presented. The system has diameter D=3800 mm and focal distance f=2260 mm. The parabolic dish of the solar system consists of 11 curvilinear trapezoidal reflective petals. For the construction of the solar collectors, mild steel-sheet and square pipe were used as the shell support for the reflecting surfaces. This paper presents optical simulations of the parabolic solar concentrator unit using the ray tracing software TracePro. The total flux on the receiver and the distribution of irradiance for absorbing flux on center and periphery receiver are given. The goal of this paper is to present the optical design of a low-tech solar concentrator that can be used as a potentially low cost tool for laboratory scale research on the medium-temperature thermal processes, cooling, industrial processes, polygeneration systems, and so forth.

Optical design of a flat-facet solar concentrator

Solar Energy ◽  
2012 ◽  
Vol 86 (6) ◽  
pp. 1962-1966 ◽  
Author(s):  
Zhiqiang Liu ◽  
Justin Lapp ◽  
Wojciech Lipiński
Keyword(s):  
Optical Design ◽  
Solar Concentrator

Design and Fabrication of Gamma-Type Stirling Engine on Parabolic Dish of Solar Concentrator by a Compression Ratio Method

2016 ◽  
Vol 851 ◽  
pp. 383-388 ◽  
Author(s):  
Khanuengchat Saenyot ◽  
Kitsakorn Locharoenrat ◽  
Sarai Lekchaum
Keyword(s):  
Compression Ratio ◽  
Solar Collector ◽  
Total Pressure ◽  
Weather Conditions ◽  
Stirling Engine ◽  
Ratio Method ◽  
Solar Concentrator ◽  
External Work ◽  
Parabolic Dish ◽  
Solar Tracker

In this article, we have designed and fabricated the gamma-type Stirling engine based on the compression ratio technique. This engine is attached on a parabolic dish of a solar collector. The engine shows a good performance in terms of compression ratio, external work, total pressure, and engine’s speed. Our engine offers the thermal efficiency of 30.59 % so that it can reach the output mechanical power of 0.934. The temperature difference of 137 K can maintain very well for the heat collection of the solar collector even when the weather conditions are poor. Furthermore, our materials are environmentally friendly and this design is expected to be in the applications of the solar tracker in the future.

Design and Optimization of Dish for Solar Thermal Incineration

2016 ◽  
Vol 852 ◽  
pp. 675-680
Author(s):  
M. Ashwin Ganesh ◽  
Gaurav Ganti ◽  
Aushman Choudhury ◽  
Y. Raja Sekhar
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Optical Simulation ◽  
Solar Concentrator ◽  
Linear Variation ◽  
Benefit Analysis ◽  
Design And Optimization ◽  
Remote Areas ◽  
Simulation Results ◽  
Detrimental Impact

Waste disposal in remote areas is a hurdle due to lack of active dumping space. Besides, improper dumping of waste on empty land can have a detrimental impact on the environment. Incineration of waste using thermal incineration (using a solar concentrator) can be utilized for mobile incineration devices to dispose of hazardous waste effectively with a limited space. The design and mobility of the solar dish for this purpose is one of the most important considerations. The modeling of the solar dish was performed on SOLIDWORKS® with APEX® for optical simulation. The simulation results showed a linear variation of flux coating to enable a more comprehensive cost benefit analysis for the design. The simulation was also used to check whether the required flux at focus (to achieve ignition) was achieved. Further work is required to validate the results.

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