Thermophotovoltaics, TPV, innebär samtidig generering av värme och el med hjälp av fotovoltaiska celler som omvandlar värmestrålning till el. Värmen erhålls genom förbränning av t ex träpulver, gasol eller naturgas. Forskningen sker i samarbete en grupp vid Mälardalens Högskola ledd av prof. Erik Dahlqvist. För ytterligare information, kontakta Eva Lindberg (eli@du.se).
TPV is the conversion of radiation energy from a source with a lower temperature than the sun´s to electricity with the help of photovoltaic cells (solar cells). For more information about the principles of TPV, see, for example, www.JXcrystals.com
TPV research was started at the Dalarna University Solar Energy Research Center SERC in 1994 in co-operation primarily with the National Renewable Energy Laboratory NREL, USA. Later, we co-operated with Mälardalen University, Borlänge Energi AB; Mälarenergi AB, Sala-Heby Energi, and Solarit AB.
The aim of the project is to develop a system for the production of electricity and heat from refined solid biofuel with TPV techniques. Research on wood powder combustion has been carried out financed by the Swedish Energy Agency. The prototype burner was tested at Borlänge Energi.
The SERC-TPV group R&D activities included studies within the following areas:
* Design of a ceramic wood powder burner for high temperatures (> 1000°C).
* Design of the optical connection of emitter and TPV cells for maximum efficiency using both measurements and computer simulations.
The TPV research group has in late 2004 got funding from Swedish Energy Agency for construction of a TPV prototype for about 2.25 kW heat and 0.12-0.27 kW electricity. See a model of the prototype below.
See the TPV generator animation!
Project group:
Dalarna University
Lars Broman, Professor em.
Eva Lindberg, PhD, eli@du.se
Svante Nordlander, Techn.Lic
Mälardalens University
Erik Dahlquist, Professor, Project leader Erik.Dahlquist@mdh.se Adel Karim, Techn.Dr, Adel.Karim@mdh.se
Eva Thorin, Techn.Dr, Eva.Thorin@mdh.se
Gert Bard, Research engineer, Ger.Bard@mdh.se
Solarit AB
Falah Hosini, Engineer Falah.Hosini@solaritab.se
Stefan Söderlund, Engineer, Stefan.Soderlund@solaritab.se
Publications
Lindberg, Eva, Kraus, Alex, Broman, Lars. Animation tool and Q. E. measurements for estimating the optimum system efficiency of a TPV generator. AIP Conference Proceedings, Vol. 738, Sixth Conference on Thermophotovoltaic Generation of Electricity, Freiburg, Tyskland, 14-16 juni, 2004. s. 114-122. (0-7354-0222-1)
Lindberg, Eva, Broman, Lars. An animation tool for demonstrating the importance of edge filters in thermophotovoltaic applications. Renewable Energy, Vol. 28, 2003, s. 1305-1315.
Lindberg, Eva. TPV optics studies : on the use of non-imaging optics for improvement of edge filter performance in thermophotovoltaic applications. PhD thesis Nr. 244, Uppsala, Sveriges lantbruksuniversitet, 2002. (91-576-6328-9)
Lindberg, Eva, Broman, Lars. An animation tool for demonstrating the importance of edge filters in thermophotovoltaic applications . Renewable Energy, Vol. 28, Oktober, 2002, s. 1305-1315.
Lindberg, Eva, Broman, Lars. Fabergé optics and edge filter for a wood powder fuelled thermophotovoltaic system . Renewable Energy, Vol. 28, 2002, s. 373-384.
Lindberg, Eva, Broman, Lars. Non-imaging optics in a thermophotovoltaic generator. AIP Conference Proceedings, Nr. 653, Fifth Conference on Thermophotovoltaic Generation of Electricity, Rome, Italy, 2002. (0-7354-0113-6)
Lindberg, Eva, Broman, Lars. Edge filters in thermophotovoltaic applications. 17th European Photovoltaic Solar Energy Conference, München, Tyskland, 22-26 oktober, 2001. s. 288-291. (3-936338-08-6)
Broman, Lars, Jarefors, Kenneth, Marks, Jörgen, Lindberg, Eva. Enhancing the optical efficiency of a thermophotovoltaic generator using square cones in combination with interference filters. Second World Conference on Photovoltaic Solar Energy Conversion, Wien, Österrike, 1998. s. 264-267. (92-828-5179-6)
Broman, Lars, Jarefors, Kenneth, Lindberg, Eva, Marks, Jörgen. Square cones for TPV: experiments and computer simulations. AIP Conference Proceedings, Vol. 460, Fourth NREL Conference on Thermophotovoltaic Generation of Electricity, Denver, CO, USA, 1998. s. 115-120. (1-56396-828-2)
For further information contact Eva Lindberg (eli@du.se).
