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Performance and operational effectiveness of evacuated flat plate solar collectors compared with conventional thermal, PVT and PV panels
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Moss, Roger W., Henshall, P., Arya, F., Shire, G. S. F., Hyde, T. and Eames, P. C. (2018) Performance and operational effectiveness of evacuated flat plate solar collectors compared with conventional thermal, PVT and PV panels. Applied Energy, 216 . pp. 588-601. doi:10.1016/j.apenergy.2018.01.001
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Official URL: https://doi.org/10.1016/j.apenergy.2018.01.001
Abstract
The concept of an evacuated flat plate (EFP) collector was proposed over 40 years ago but, despite its professed advantages, very few manufacturers have developed commercial versions. This situation suggests both technical difficulties in manufacturing a competitively-priced sealed for life panel and a lack of awareness of the bene fits of such panels. This paper demonstrates an evacuated flat plate simulation that closely models experimental efficiency measurements. Having established the validity of the model, it compares published data for a commercial EFP collector with predictions for an optimal design to investigate whether any further efficiency improvement might be possible. The optimised design is then evaluated against alternative solar energy devices by modelling a number of possible applications. These comparisons should inform choices about solar options for delivering heat: EFP collectors are well-suited to some of these applications. Evacuated flat plate collectors are a possible alternative to concentrating collectors for Organic Rankine Cycle power generation. The annual output for all the modelled collectors was found to be a quadratic function of delivery temperature: this enabled a novel optimisation of ORC source temperature. Predictions for concentrating and non-concentrating ORC plant are compared with a PV/thermal alternative. The ORC output is significantly less than a PV panel would achieve; applications needing both heat and power are better served by PVT panels. This is an original and novel result.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Photovoltaic power generation, Solar cells | ||||||||
| Journal or Publication Title: | Applied Energy | ||||||||
| Publisher: | Elsevier BV | ||||||||
| ISSN: | 0306-2619 | ||||||||
| Official Date: | April 2018 | ||||||||
| Dates: |
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| Volume: | 216 | ||||||||
| Page Range: | pp. 588-601 | ||||||||
| DOI: | 10.1016/j.apenergy.2018.01.001 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
| RIOXX Funder/Project Grant: |
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