The Performance and Efficiency Analysis of a PVT System Compared with a PV module and a Solar collector

Abstract

* De p a r t me n to fB i o s y s t e mse n g i n e e r i n g , Ka n g wo nNa t i o n a lUn i v e r s i t y A b s t r a c tA p h o t o v o l t a i c / t h e r ma l ( P VT)s o l a rs y s t e m i st h es o l a rt e c h n o l o g yt h a ta l l o wsf o rs i mu l t a n e o u sc o n v e r s i o no fs o l a r e n e r g yi n t ob o t he l e c t r i c i t ya n dh e a t .Th i sp a p e rc o mp a r e dt h ep e r f o r ma n c eo fP VT s y s t e m wi t hac o n v e n t i o n a lP V mo d u l ea n ds o l a rc o l l e c t o ra n da n a l y z e de l e c t r i c a la n dt h e r ma le f f i c i e n c yo fP VT s y s t e m i nt e r mso fs o l a ri r r a d i a n c e a n di n l e tt e mp e r a t u r eo ft h ewo r k i n gf l u i d .B a s e do nt h ee x p e r i me n t a ld a t a , t h e r ma la n de l e c t r i c a le f f i c i e n c i e so ft h e g l a z e dP VT s y s t e m we r e5 7 . 9 % a n d1 4 . 2 7 % u n d e rz e r or e d u c e dt e mp e r a t u r ec o n d i t i o nwh i c hwe r el o we rb y1 3 . 6 % t h a n t h es o l a rt h e r ma l a b s o r b e rp l a t ea n db y0 . 0 8 % t h a nt h eP V mo d u l er e s p e c t i v e l y . F o rt h eu n g l a z e dP VT s y s t e m, i th a d l o we rt h e r ma le f f i c i e n c yt h a nt h es o l a rt h e r ma la b s o r b e rp l a t eb u th i g h e re l e c t r i c a lp e r f o r ma n c et h a nt h eP V mo d u l e d u et ot h ec o o l i n ge f f e c tb yt h ewo r k i n gf l u i d . Ho we v e r , t o t a l e f f i c i e n c yo ft h eg l a z e dP VT s y s t e m wa s7 2 . 2 % wh i c h wa sh i g h e rt h a nc o mb i n e de f f i c i e n c i e so ft h es o l a rc o l l e c t o ra n dP V mo d u l e . B e s i d e s , t o t a l e f f i c i e n c yo ft h eP VT s y s t e m wo u l db emu c hh i g h e ri fc a l c u l a t e db a s e do nu n i ta r e a .Ke y wo r d s:P V/ Th e r ma ls y s t e m,e l e c t r i c a l / t h e r ma le f f i c i e n c y ,p e r f o r ma n c e 기 호 설 명 

Experimental Study on the Thermal and Electrical Characteristics of an Air-Based Photovoltaic Thermal Collector

“…In previous studies, PVT collectors consisted of PV cells throughout the front side [3,5,19]. Also, baffles were fitted inside the collector, mainly to extend the flow path of the heat medium to increase the thermal performance.…”

“…Euh et al analyzed the performance and efficiency of a PV, solar thermal collector, and PVT system through experiments. The results showed that the energy storage efficiency of the PVT system was 90.8%, which was the higher than the rate of solar energy storage per unit area than the solar thermal collector (71.5%) and PVs (40.9%) [3]. Jia et al conducted a review on the appropriate environmental conditions and applications for different kinds of PVT systems.…”

Performance Analysis and Comparison of an Experimental Hybrid PV, PVT and Solar Thermal System Installed in a Preschool in Bucharest, Romania

“…Several studies have been conducted to analyze PVT systems in comparison with individual PV systems and solar thermal collectors. Euh et al [8] obtained an efficiency for an experimental PVT system without transparent coating that, while it was 13% lower on the thermal side, had 0.8% higher electrical efficiency for electrical conversion compared to the two separate panels. In this way, the total conversion efficiency of the system can be increased by up to 40% [9].…”