Experimental analysis for co-generation of heat and power with convex lens as SOE and linear Fresnel Lens as POE using active water stream

Arvind Singhy, Robin Thakur and Raj Kumar

Renewable Energy, 2021, vol. 163, issue C, 740-754

Abstract: This paper evaluates the performance of standalone thermal system and cogeneration PVT system under concentrated two stage linear Fresnel lens (FL) based system with convex lens as Secondary Optic Element (SOE). Experiment for standalone thermal system with two stage concentrator investigates the thermal efficiency of the system with copper plates as thermal collector. The experiments to obtain VI characteristics of PV module were done without lens, then with FL and with both FL/CL. The electrical efficiencies were 12.23%, 11.5% and 9.2% respectively which shows fall in efficiency as a result of concentration. Peak powers were 3.42 W, 3.74 W and 4.23 W respectively which shows there is rise in output power. Increase in output power from no lens to single lens was 9.3% and increase in output power from single lens to two stage lenses was 13.1%. The position of Primary Optic Element (POE) was determined by adjusting distance from 10 cm to 35 cm. At 30 cm max power was obtained so POE was kept at 30 cm. In similar manner, SOE was positioned at 15 cm from POE. The net efficiency of standalone thermal system and PVT system with two stage concentrations was 47.61% and 53.7%.

Keywords: Heat exchanger; PVT; Fresnel lens; Thermal efficiency; Electrical efficiency (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S096014812031377X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:163:y:2021:i:c:p:740-754

DOI: 10.1016/j.renene.2020.08.132

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().