Water/MWCNT nanofluid based cooling system of PVT: Experimental and numerical research

Nasrin, Rehena; Rahim, N.A.; Fayaz, H.; Hasanuzzaman, M.

doi:10.1016/j.renene.2018.01.014

Cited by 205 publications

(76 citation statements)

References 36 publications

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“…To stay away from superfluous vulnerabilities, the output was estimated from dusk to dawn for every 30 minutes (9.30 AM to 16.30 PM). Similar trend was recently explained by Nasrin et al 22 The electrical output increases to peak from 12.30 PM to 1.00 PM and then starts to lose its heat and there is obvious drop in electrical output. All nanofluids Al 2 O 3 , CuO, and MWCNT showed a significant output by reporting, 11%, 12.5%, and 18% increase in electrical output compared with conventional PV.…”

Section: Electrical Outputsupporting

confidence: 87%

“…The impacts of MWCNT in PV/T are exhibited in the Figure 6. Similar trend was recently explained by Nasrin et al 22 The electrical output increases to peak from 12.30 PM to 1.00 PM and then starts to lose its heat and there is obvious drop in electrical output. Although MWCNT reports higher output, the CuO and Al 2 O 3 are also very close to MWCNT.…”

Section: Electrical Outputsupporting

confidence: 87%

“…From the figure it is clear that, the electrical output is extreme at 12.30 hours. 13,22 For instance, at 1.00 PM the difference between MWCNT on Al 2 O 3 and CuO is 3% and 2%, respectively. Among all nanofluids, MWCNT recorded a noteworthy increment in the power system rather than other fluids.…”

Section: Electrical Outputmentioning

confidence: 99%

“…Thermal conductivity typically depends on the percentage of nanoparticles and the PV cell operating temperature. 22,23 Hence it is typical that Brownian motion has the possibility to influence thermal conductivity of the nanofluids. The thermal conductivity ratio is given by the thermal conductivity of nanofluids to base fluid.…”

Section: Thermal Conductivitymentioning

confidence: 99%

“…In fact, at higher temperatures, the Brownian effects are more intense than lower temperatures and a solid volume fraction. 22,23 Hence it is typical that Brownian motion has the possibility to influence thermal conductivity of the nanofluids. Further, the increase in surface volume and the collision between the nanoparticles are also believed to be valid reasons for the increase in thermal conductivity.…”

Section: Thermal Conductivitymentioning

confidence: 99%

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Progress of MWCNT, Al ₂ O ₃ , and CuO with water in enhancing the photovoltaic thermal system

et al. 2019

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Hybrid photovoltaic thermal system is an effective method to convert solar energy into electrical and thermal energy. However, its effectiveness is widely affected due to the high temperature of photovoltaic panel, and it can be minimized by employing nanofluids to the PV/T systems. In this research, the effect of various nanoparticles on the PV/T systems was studied experimentally. The nanofluids Al 2 O 3 , CuO, and multiwall carbon nanotube (MWCNT) were dispersed with water at different volume fractions of 0, 0.5, 1, 2.5, and 5 (vol%) using ultrasonication process. The effect of nanomaterials on viscosity and density was classified. All tests were carried out in an outdoor laboratory setup for calibrating the PV temperatures, thermal conductivity, electrical power, electrical efficiency, and overall efficiency. In addition, the energy analyses were also made to estimate the loss of heat owing to the nanofluids. Results show that use of the nanofluid increased the electric power and electrical efficiency of PV/T compared with water. Furthermore, MWCNT and CuO reduced the cell temperature by 19%. Consequently, the nanofluids MWCNT, Al 2 O 3 , and CuO produced the impressive values of 60%, 55%, and 52% increase in an average electrical efficiency than conventional PV. Particularly, the MWCNT produced superior results compared with other materials. It is evidently clear from the result that the introduction of the nanofluid increases the thermal efficiency without adding any extra energy to the system. Moreover, insertion of Al 2 O 3 , CuO, and MWCNT on PV/T system increases the exergy efficiency more than conventional PV module.How to cite this article: Sangeetha M, Manigandan S, Chaichan MT, Kumar V. Progress of MWCNT, Al 2 O 3 , and CuO with water in enhancing the photovoltaic thermal system. Int J Energy Res.

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Section: Electrical Outputsupporting

confidence: 87%

Section: Electrical Outputsupporting

confidence: 87%

Section: Electrical Outputmentioning

confidence: 99%

Section: Thermal Conductivitymentioning

confidence: 99%

Section: Thermal Conductivitymentioning

confidence: 99%

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