Experimental investigation of a solar air heater with copper wool on the absorber plate

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Küçük Resim

Tarih

2020

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Taylor & Francis

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

The thermal performance of a novel solar air heater was experimentally studied in this paper. For this aim, a new solar air collector was designed using copper wool on its absorber plate to be a selective surface. Hence, the area of absorber plate was enhanced to absorb much amount of heat energy. The experimental study was conducted for both cases (presence and absence of copper wool on the absorber plate) to determine the effect of copper wool on the thermal efficiency of the collector. The mass flow rate values of the study were 0.035 and 0.044 kg/s. The results pointed out that fluid temperature at outlet of collector with copper wool was increased by about 8 to14%. Therefore, these collectors may be suitable for space heating and drying of food applications. However, copper wool caused more pressure loss through the collector by 40% compared to simple case of collector. The thermal efficiency of the collectors was obtained as 34 to 83% depending on experimental variable parameters. Similarly, effective efficiency of collectors was computed to be 24 to 70%. It is found that efficiency of the collector was improved when using copper wool on the absorber plate as well as increasing mass flow rate of air.

Açıklama

Anahtar Kelimeler

Copper wool, Solar air heater, Thermal efficiency

Kaynak

International Journal of Green Energy

WoS Q Değeri

Q2

Scopus Q Değeri

Q2

Cilt

17

Sayı

15

Künye

Biçer, A., Devecioğlu, A. G., Oruç, V., & Tuncer, Z. (2020). Experimental investigation of a solar air heater with copper wool on the absorber plate. International Journal of Green Energy, 17(15), 979-989.