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Cooling integrated solar panels using Phase Changing Materials
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this master thesis, several cooling systems for PV-systems have been looked into by doing a smaller literature review and then a cooling module for a BIPV-panel was built out from the knowledge gathered. The cooling module used a PCM material separated into 12 bags and then placed in a 3x4 shaped pattern fastened to an aluminium plate that in turn was placed on the back of a PV-panel. This was tested in first a pilot test and then tested outdoors on panels with insulation on its back to simulate BIPV-panels. Temperature data from behind the panel was gathered with and without the cooling module and then compared with each other with added ambient temperature. It was found that the PCM cooled down the panels during similar weather conditions where the outside temperature and the amount of clouds where approximately the same, and it was also found that PCM technologies needs to be more optimised in terms of its material use, the amount of material, and its arrangement for it to be used in PV-panels. An economical calculation was made and it was found that it wasn't economically viable as it takes 14 years for the PV-panel with cooling to pay for itself while it takes 13 years for the PV-panel with cooling to pay for itself. These results are then discussed in comparison to other systems and earlier work done.

Abstract [sv]

I denna exjobbsrapport så har ett antal olika kylningssystem till PV-paneler setts igenom genom en mindre litteraturstudie. Därefter byggdes en kylningsmodul för en BIPV utifrån den kunskapen som samlats in. Kylningsmodulen använde sig utav ett PCM material som var uppdelat mellan 12 påsar som placerades i ett 3x4 mönster som fästs på baksidan av en aluminiumplåt som i sin tur placerades på baksidan utav PV-panelen. Denna testades först i ett pilottest och sedan utomhus på paneler som isoleras baktill för att simulera BIPV-paneler. Temperaturdata samlades in från panelens baksida, med och utan kylnings modul, som sedan jämfördes med varandra samt omgivningens temperatur. Slutsatsen är att PCM kyler panelen under liknande väderförhållanden där ute temperaturen och molnigheten var ungefär densamma, men att PCM behöver optimeras mer i form av användningen av materialet, mängden av material, och hur det sätts upp som kylning på PV-paneler. En ekonomisk kalkyl genomfördes som visar att det inte är ekonomiskt gångbart eftersom det tar 14 för PV-panelen med kylning att betala av sig själv medan det tar 13 år för PV-panelen utan kylning att göra det. Dessa resultat diskuteras sedan i jämförelse med andra system och tidigare arbeten som gjorts inom området.

Place, publisher, year, edition, pages
2018. , p. 59
Keywords [en]
Phase changing material (PCM), optimal working temperature, PV, solar panel, cooling solar panel
Keywords [sv]
Fas ändrande material, optimal arbetstemperatur, Solceller, Kylning av solceller.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:bth-16780OAI: oai:DiVA.org:bth-16780DiVA, id: diva2:1232243
External cooperation
Nyedal Solenergi
Subject / course
Degree Project in Master of Science in Engineering 30.0
Educational program
MTACI Master of Science in Mechanical Engineering
Supervisors
Examiners
Available from: 2018-07-11 Created: 2018-07-11 Last updated: 2018-07-11Bibliographically approved

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