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Optical design of a tension cable-membrane concentrator
- Source :
- Energy Reports, Vol 7, Iss , Pp 8021-8029 (2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- This paper proposes a Tension Cable-Membrane Concentrator with an ultra-lightweight, practical and low cost alternative construction which is used in the optical-electrical conversion system. The relationship between the varied count triangular facets of the membrane surface and the focal spot radius are studied. Based on Monte Carol ray-tracing method, the optical performances of the concentrator, such as the concentrate ratio, flux distributions and focal spot radiuses etc., are analyzed in different geometry design parameters. Further, a 15 m aperture Tension Cable-Membrane Concentrator is designed, and the form-finding design is studied and verified by ANSYS®. The optical performance comparisons with the original and pre-stressed shape of the reflective film are discussed. Simulation results exhibit that the surface density of the proposed Tension Cable-Membrane Concentrator is only 5% of that of traditional rigid concentrator. It takes on the ultra-lightweight and low-cost that excite designers. The optical performance comparisons show that the peak flux distribution after form-finding over a 0.25 m receiver approximately deliver up to 800 kW/m2 corresponding to the peak concentrate ratio exceeds 1000 suns which are even better than the traditional steel design and completely satisfy design requirements.
Details
- Language :
- English
- ISSN :
- 23524847
- Volume :
- 7
- Issue :
- 8021-8029
- Database :
- Directory of Open Access Journals
- Journal :
- Energy Reports
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.9f2f6b21ed7c46cc8bacad34ae68404e
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.egyr.2021.06.068