Effect of heat absorbing media on thermal performance of air-type solar collectors için kapak resmi
Effect of heat absorbing media on thermal performance of air-type solar collectors
Aydın, Kamil.
Yazar Ek Girişi:
Yayın Bilgileri:
[s.l.]: [s.n.], 2005.
Fiziksel Tanımlama:
xiii, 77 leaves.: ill.+ 1 computer laser optical disc.
Genel Not:
Keywords: solar energy, solar collector, porous media, air-type solar collectors, heat absorbing media.
In this study, effect of heat absorbing media on the thermal performance of airtype solar collector is studied experimentally. Experimental setup was built and tested by using the ASHRAE 93-1986 standard named .Methods of testing to determine the thermal performance of solar collectors.. Polyurethane foam is used as heat absorbing media with a porosity of 85%. In the analysis three air speeds 3 m/s, 3,5 m/s and 4 m/s are used. Data for similar days are compared with each other. Increment of the efficiency related to the polyurethane foam is presented and performance curves of our air-type solar collector are indicated. Factors, affect the performance of collector, are discussed. Using heat absorbing media enhances heat transfer surface area and this increases efficiency, but pressure drop should be taken into consideration to prevent extra pumping power. In conclusion, efficiency values about 55% for 3m/s for ambient temperatures between 35 and 38oC, 60% for 4 m/s and 48% for 3,5 m/s for ambient temperature between 28 and 32oC with polyurethane foam are obtained. On the other hand, pressure drops increase from 0,015 kPa to 0,215 kPa for 3 m/s, from 0,01 kPa to 0,32 kPa for 3,5 m/s and from 0,01 kPa to 0,385 kPa for 4 m/s.
Yazar Ek Girişi:
Tek Biçim Eser Adı:
Thesis (Master)--İzmir Institute of Technology:Mechanical Engineering.

İzmir Institute of Technology:Mechanical Engineering--Thesis (Master).
Elektronik Erişim:
Access to Electronic Version.


Materyal Türü
Demirbaş Numarası
Yer Numarası
Durumu/İade Tarihi
Tez T000376 TJ812.A97 2005 C.1

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