Sains Malaysiana 43(4)(2014): 575–582

Analisis Terma dan Prestasi Tetingkap Dwi Kaca dengan Modul Fotovoltan Semi-lutsinar

(Thermal Analysis and Performance of Double Glazing Window with Semi-transparent

Photovoltaic Module)

MOHD YUSOF HJ OTHMAN*, SALEEM H. ZAIDI, KAMARUZZAMAN SOPIAN

& MARHAMA JELITA

Institut Penyelidikan Tenaga Suria, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor

Malaysia

Received: 13 February 2012/Accepted: 5 August 2013

ABSTRAK

Analisis terma dan prestasi modul fotovoltan semi-lutsinar yang dipasang pada tetingkap dwi kaca (TDK) telah dikaji. Di dalam TDK terjadi pemindahan haba olakan yang disebabkan oleh perbezaan suhu. Perisian COMSOL digunakan untuk menyelesaikan model matematik dengan empat jenis gas yang berlainan disimulasikan untuk mengisi ruang dalam TDK iaitu udara, argon, kripton dan xenon. Ruang dalam TDK diubah antara 5 hingga 100 mm. Keadaan cuaca di Kuala Lumpur, Malaysia telah digunakan. Modul fotovoltan yang digunakan untuk kajian simulasi ialah jenis silikon amorfus (Si-a). Kajian ini mendapati penggunaan gas xenon dalam ruang TDK memberikan prestasi maksimum dalam mengurangkan beban penyejukan. Ketebalan optimum ruang TDK bergantung kepada jenis gas yang digunakan dan secara umumnya berada dalam julat 10 hingga 20 mm.

Kata kunci: Analisis terma; modul semi lutsinar; pemindahan haba perolakan; prestasi sistem; tingkap dwi kaca

ABSTRACT

Thermal analysis and performance of a semi-transparent photovoltaic module installed with a double glazing window (TDK) has been studied. The convective heat transfer occurs because of the temperature differences. The software COMSOL was used to solve the mathematical model and four different gases namely air, argon krypton and xenon were used. The gap's thickness varies from 5 to 100 mm. The climate conditions in Kuala Lumpur, Malaysia was used. The photovoltaic module used for the simulation studies are of the amorphous type (Si-a). It was concluded that the use of xenon for filling up the gaps of the windows gave maximum benefits for reducing cooling load. The optimal gap thickness obtained were between 10 and 20 mm.

Keywords: Convective heat transfer; double glazing window; semi-transparent module; system performance; thermal analysis

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*Corresponding author; e-mail: myho@ukm.my