Effect of heat absorbing media on thermal performance of air-type solar collectors
Aydın, Kamil.

Effect of heat absorbing media on thermal performance of air-type solar collectors

Aydın, Kamil.

Yazar Ek Girişi
Aydın, Kamil.

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.

Konu Başlığı
Solar collectors -- Thermal properties.

Yazar Ek Girişi
İlken, Zafer

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Mechanical Engineering.

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.

LibraryMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTE LibraryTezT000376TJ812.A97 2005 C.1Tez Koleksiyonu