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Thermal Evaluation of a Solarus PV-T collector
Högskolan Dalarna, Akademin Industri och samhälle, Energi och miljöteknik.
2013 (engelsk)Independent thesis Advanced level (degree of Master (One Year)), 12 poäng / 18 hpOppgave
Abstract [en]

Low concentrator PV-T hybrid systems produce both electricity and thermal energy; this fact increases the overall efficiency of the system and reduces the cost of solar electricity. These systems use concentrators which are optical devices that concentrate sunlight on to solar cells and reduce expensive solar cell area. This thesis work deals with the thermal evaluation of a PV-T collector from Solarus.Firstly the thermal efficiency of the low concentrator collector was characterized for the thermal-collector without PV cells on the absorber. Only two types of paint were on the absorber, one for each trough of the collector. Both paints are black one is glossy and the other is dull,. The thermal efficiency at no temperature difference between collector and ambient for these two types of paint was 0.65 and 0.64 respectively; the U-value was 8.4 W/m2°C for the trough with the glossy type of paint and 8.6 W/m2°C for the trough with dull type of paint. The annual thermal output of these two paints was calculated for two different geographic locations, Casablanca, Morocco and Älvkarleby, Sweden.Secondly the thermal efficiency was defined for the PV-T collector with PV cells on the absorber. The PV cells cover 85% of the absorber, without any paint on the rest of the absorber area. We also tested how the electrical power output influences the thermal power output of the PV-T collector. The thermal and total performances for the PV-T collector were only characterized with reflector sides, because of the lack of time we could not characterize them with transparent sides also.

sted, utgiver, år, opplag, sider
2013. , s. 42
HSV kategori
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URN: urn:nbn:se:du-13567OAI: oai:DiVA.org:du-13567DiVA, id: diva2:681521
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(engelsk)
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Tilgjengelig fra: 2013-12-20 Laget: 2013-12-20 Sist oppdatert: 2013-12-20bibliografisk kontrollert

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