Band-gap tuned direct absorption for hybrid concentrating solar photovoltaic/thermal system

Todd P. Otanicar, Ihtesham Chowdhury, Ravi Prasher, Patrick Phelan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Two methods often proposed for harnessing renewable energy, photovoltaics and solar thermal, both utilize the power of the sun. Each of these systems independently present unique engineering challenges but when coupled together the challenge intensifies due to competing operating requirements. Recent research has demonstrated these hybrid systems for lowtemperature applications but there exists limited studies at higher concentration ratios, and thus higher temperatures. What these studies have shown is that keeping the PV cell temperature low keeps the overall system efficiency relatively high but results in low efficiencies from the thermal system. This study presents a unique design strategy for a hybrid PV/thermal system that only has mild thermal coupling which can lead to enhanced efficiency. By creating a fluid filter that absorbs energy directly in the fluid below the band-gap and a PV cell with a passive cooling strategy combined efficiencies greater than 38% can be achieved.

Original languageEnglish (US)
Title of host publicationASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
StatePublished - Dec 1 2011
EventASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011 - Honolulu, HI, United States
Duration: Mar 13 2011Mar 17 2011

Publication series

NameASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011

Other

OtherASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
CountryUnited States
CityHonolulu, HI
Period3/13/113/17/11

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology

Cite this

Otanicar, T. P., Chowdhury, I., Prasher, R., & Phelan, P. (2011). Band-gap tuned direct absorption for hybrid concentrating solar photovoltaic/thermal system. In ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011 (ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011).