Prediction and optimization of the performance of parabolic solar dish concentrator with sphere receiver using analytical function

Huang, Weidong; Huang, Farong; Peng, Hu; Chen, Zeshao

doi:10.1016/j.renene.2012.10.046

Cited by 34 publications

(9 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Approximately 60% of radiation losses from the receiver were mitigated by adjusting the aperture of the cavity receiver [17]. Huang et al [18] presented an analytical function to predict the performance of the sphere receiver in a parabolic dish concentrator. Their proposed optimization process showed enhanced efficiency with sphere receiver than solar tower because of higher cosine factor.…”

Section: Introductionmentioning

confidence: 99%

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Malwad¹,

Tungikar²

2020

SN Appl. Sci.

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Malwad¹,

Tungikar²

2020

SN Appl. Sci.

View full text Add to dashboard Cite

“…Tao et al 16 investigated the nonuniform 3D heat flux distributions on a cylindrical cavity receiver (diameter is 0.30 m and height is 1.0 m) in a dish system, and there are 2 peak flux distribution characteristic. But the flux distribution on the cylindrical receiver has only one peak flux characteristic when the aspect ratio is small, 12,14 such as the diameter is 0.20 m and height is 0.26 m. 14 Moreover, some analytical functions are established and used to predict the optical performance of the spherical and cavity receivers in DS-CSP system by Bendt and Rabl 17 and Li and Huang et al 18,19 This analytical function method has the advantages of less computation time compared with the MCRT method and is very suitable for the parameter optimization and annual performance evaluation of DS-CSP system. 18 However, it is difficult to establish an analytical function of the optical efficiency or flux distribution of the cavity receiver because the sunlight will be reflected and absorbed many times inside the cavity receiver.…”

Section: Discussionmentioning

confidence: 99%

Effects of geometrical parameters of a dish concentrator on the optical performance of a cavity receiver in a solar dish-Stirling system

2018

View full text Add to dashboard Cite

Summary Dish‐Stirling concentrated solar power (DS‐CSP) system is a complex system for solar energy‐thermal‐electric conversion. The dish concentrator and cavity receiver are optical devices for collecting the solar energy in DS‐CSP system; to determine the geometric parameters of dish concentrator is one of the important steps for design and development of DS‐CSP system, because it directly affects the optical performance of the cavity receiver. In this paper, the effects of the geometric parameters of a dish concentrator including aperture radius, focal length, unfilled radius, and fan‐shaped unfilled angle on optical performance (ie, optical efficiency and flux distribution) of a cavity receiver were studied. Furthermore, the influence of the receiver‐window radius of the cavity receiver and solar direct normal irradiance is also investigated. The cavity receiver is a novel structure that is equipped with a reflecting cone at bottom of the cavity to increases the optical efficiency of the cavity receiver. Moreover, a 2‐dimensional ray‐tracking program is developed to simulate the sunlight transmission path in DS‐CSP system, for helping understanding the effects mechanism of above parameters on optical performance of the cavity receiver. The analysis indicates that the optical efficiency of the cavity receiver with and without the reflecting cone is 89.88% and 85.70%, respectively, and former significantly increased 4.18% for 38 kW XEM‐Dish system. The uniformity factor of the flux distribution on the absorber surface decreases with the decreases of the rim angle of the dish concentrator, but the optical efficiency of the cavity receiver increases with the decreases of the rim angle and the increase amplitude becomes smaller and smaller when the rim angle range from 30° to 75°, So the optical efficiency and uniformity factor are conflicting performance index. Moreover, the unfilled radius has small effect on the optical efficiency, while the fan‐shaped unfilled angle and direct normal irradiance both not affect the optical efficiency. In addition, reducing the receiver‐window radius can improve the optical efficiency, but the effect is limited. This work could provide reference for design and optimization of the dish concentrator and establishing the foundation for further research on optical‐to‐thermal energy conversion.

show abstract

“…After an analytical calculation of a solar parabolic concentrator with a spherical absorber The SPC intercept factor is defined by the following expression [17] …”

Section: B Intercept Factormentioning

confidence: 99%

Estimating intercept factor of a solar parabolic dish with photogrammetric equipment

Skouri

Bouadila

Nasrallah

2015

IREC2015 the Sixth International Renewable Energy Congress

View full text Add to dashboard Cite

Incremental improvements in existing energy networks will not be adequate to supply the world energy demand. To cure this problem, it is necessary to invest in the field of renewable energy and specially the solar energy. Recently medium-high temperature application is an important topic in the solar energy field. The purpose of this work is to improve the performance of mobile parabolic dish was developed and realized in Research and Technology Centre of Energy in Borj Cedria Tunisia (CRTEn). In this order an optical and experimental study is carried out and a description of photogrammetry has been done which used to determine geometric error of the system. Intercept factor, slope error, displacement error and SPC optical efficiency has been determined.

show abstract

Prediction and optimization of the performance of parabolic solar dish concentrator with sphere receiver using analytical function

Cited by 34 publications

References 20 publications

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Effects of geometrical parameters of a dish concentrator on the optical performance of a cavity receiver in a solar dish-Stirling system

Estimating intercept factor of a solar parabolic dish with photogrammetric equipment

Contact Info

Product

Resources

About