Numerical and experimental investigation on the performance of a photovoltaic thermal collector with parallel plate flow channel under different operating conditions in Malaysia

Effect of high irradiation on photovoltaic power and energy

“…Reduction of cell temperature of each 1°C respectively, for each increase of 1°C cell temperature. The current numerical result agrees perfectly with Nahar et al45 A slight difference is observed with Nahar et al45 and Chandrasekar et al The current numerical result agrees perfectly with Nahar et al45 A slight difference is observed with Nahar et al45 and Chandrasekar et al …”

“…The electrical efficiency reduction for each increase of 1°C cell temperature (T sc ) that is the result from different investigations of Nahar et al, 45 Bahaidarah et al, 48 Chandrasekar et al, 49 and present research is shown in Table 6. The authors 45 showed that the electrical power and efficiency decreased about 1.7 W and 0.13%, 49 because of different operating conditions.…”

“…The surface temperature plot of the PVT at the conditions of ambient temperature T amb = 34°C, solar radiation G = 1000 W/m 2 , inlet water temperature T in = 34°C, and inlet fluid velocity V in = 0.0007 m/s is compared with the figure 8(e) of Nahar et al 45 The authors used LB250QM-60 polycrystalline silicon PV panel (1570 × 940 mm) of 5 layers, 6 × 10 number of cells, the heat exchanger (1350 × 920 × 1 mm) of aluminum metal. The surface temperature plot of the PVT at the conditions of ambient temperature T amb = 34°C, solar radiation G = 1000 W/m 2 , inlet water temperature T in = 34°C, and inlet fluid velocity V in = 0.0007 m/s is compared with the figure 8(e) of Nahar et al 45 The authors used LB250QM-60 polycrystalline silicon PV panel (1570 × 940 mm) of 5 layers, 6 × 10 number of cells, the heat exchanger (1350 × 920 × 1 mm) of aluminum metal.…”

“…Color expression for streamlines plot is given as well. The authors 45 found that the electrical efficiency decreased by about 0.16% for each increase of irradiation 100 W/m 2 . At low level of solar radiation, the fluid temperature at the outlet becomes low.…”

Performance of a hybrid photovoltaic/thermal system utilizing water‐Al 2 O 3 nanofluid and fins

“…Nahar, Hassanuzzaman, and Rahim used both experimental and numerical techniques to examine the performance of hybrid PVT system in Malaysia. In their model, the absorber plate was excluded, and the numerical simulation results were verified via experimental results.…”