Evaluation of photovoltaic panels using different nano phase change material and a concise comparison: An experimental study

Jamil, Furqan; Ali, Hafız Muhammad; Nasir, Muhammad Ali; Karahan, Mehmet; Janjua, Muhammad Mansoor; Naseer, Ammar; Ejaz, Ali; Pasha, Riffat Asim

doi:10.1016/j.renene.2021.01.089

Cited by 87 publications

(14 citation statements)

References 57 publications

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“…Furqan et.al. [49], reported that the best performance of PV panel was observed at 0.5 wt% of nanomaterial in graphene nanoplatelets/PT-58 nano-PCM. With this material combination, the maximum reduction in PV-cell temperature was nearly 10°C while the increase in electrical efficiency was around 12% when compared to that of conventional PV panels.…”

Section: Pcms For Storage Of Solar Energymentioning

confidence: 98%

Recent advances in phase change materials for thermal energy storage-a review

Venkateswarlu¹,

Konijeti

2021

J Braz. Soc. Mech. Sci. Eng.

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The research on phase change materials (PCMs) for thermal energy storage systems has been gaining momentum in a quest to identify better materials with low-cost, ease of availability, improved thermal and chemical stabilities and eco-friendly nature. The present article comprehensively reviews the novel PCMs and their synthesis and characterization techniques for improving the properties and long-term storage capabilities. They include eco-friendly PCMs based on wood and tree fruit oils, microPCMs, nanoconfinement of organic PCMs, metal organic PCMs, bio-based PCMs, metal organic framework (MOF) PCMs and form-stable PCMs with gelators. The novel approaches such as cryogenically treated microencapsulated PCMs and treating them with photo-switching dopants to improve the properties are also presented. This review provides the useful insights about recent advances in the field of PCMs. The phase change slurries can effectively improve the thermal performance of photovoltaic/thermal systems. The thermal conductivity of PCMs can be enhanced significantly by PCM slurries, MOFs, exfoliated graphite nanoplatelets and composite PCMs. Optical control of PCMs by doping them with azobenzene dopants is found to be the most promising technique to improve the thermal stability and long-term storage capacity of PCMs. Cyclic cryogenic treatment by liquid nitrogen followed by heat treatment of PCMs can improve the latent heat, thermal and chemical stabilities significantly. The insightful information presented in this article can serve as an important tool for the researchers in the field of PCMs research to further innovate the technology in different applications such as thermal management of buildings, solar energy storage and cryogenic storage etc.

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Section: Pcms For Storage Of Solar Energymentioning

confidence: 98%

Recent advances in phase change materials for thermal energy storage-a review

Venkateswarlu¹,

Konijeti

2021

J Braz. Soc. Mech. Sci. Eng.

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“…The PCMs can retain and release a good many latent heat in the stage of phase transition, 11 and they have the superiority of high heat storage density 12 and low‐temperature fluctuation, 13 which are the ideal choice of the heat storage medium in thermal energy storage (TES) system 14 . In the solar energy hot water system, a thermal storage device generally uses a water tank 15 . The PCM package module 16 placed in the tank as a heat storage unit can fully elevate the use effect of the tank 17 .…”

Section: Introductionmentioning

confidence: 99%

“…14 In the solar energy hot water system, a thermal storage device generally uses a water tank. 15 The PCM package module 16 placed in the tank as a heat storage unit can fully elevate the use effect of the tank. 17 The efficiency of the operation of the device has also been the focus of attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study on thermal performance and inlet and outlet structure optimization of phase change heat storage tank

Zhang

et al. 2022

Intl J of Energy Research

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Summary For the sake of enhancing the heat storage tank performance, the thermal characteristics and structural improvement of a water tank equipped with phase change material (PCM) were explored in this paper. The influence of PCM on the performance of the tank under conditions was experimentally analyzed, and the optimal working condition is determined by comparing the difference in effective heat storage rate under different inlet flow rates and the temperature of the water. The concept of “heat transfer blind zone” is introduced and analyzed, and the temperature and velocity field in PCM tanks with different structures are numerically compared. The results show that the addition of PCM makes the discharging time and effective water supply increase by 12.0% and the charging time increase by 6.0%. As the inlet flow rate and temperature of water rise, the thermal storage capacity reduces, and the effective heat storage rate rises first and then drops. The PCM tank has the optimum performance at the inlet water temperature of 70°C and the inlet flow rate of 15 L/h. The inlet and outlet setting up and down has the best effect on eliminating the “heat transfer blind zone” in the water tank. The research results have a good reference value for the design and realistic operation of the phase change heat storage tank.

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“…The technology of nanofluid has been implemented in diverse energy systems, including solar power, refrigeration, electronic cooling and many different areas [34][35][36][37]. In thermal energy storage, nano-sized particles have also been used [38][39][40][41]. In applications with PCM-PB systems, the utilization of MF effects have the potential to increase the PC process, especially near the wall regions.…”

Section: Introductionmentioning

confidence: 99%

Combined Effects of Sequential Velocity and Variable Magnetic Field on the Phase Change Process in a 3D Cylinder Having a Conic-Shaped PCM-Packed Bed System

et al. 2021

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Effects of sequential velocity and variable magnetic field on the phase change during hybrid nanofluid convection through a 3D cylinder containing a phase-change material packed bed (PCM-PB) system is analyzed with the finite element method. As the heat transfer fluid, 40% ethylene glycol with hybrid TiO2-Al2O3 nanoparticles is considered. Impacts of the sequential velocity parameter (K, between 0.5 and 1.5), geometric factor of the conic-shaped PCM-PB (M, between 0.2 and 0.9), magnetic field strength (Ha number between 0 and 50) and solid volume fraction of hybrid nanoparticles (vol.% between 0.02% and 0.1%) on the phase change dynamics are explored. Effects of both constant and varying magnetic fields on the phase change process were considered. Due to the increased fluid velocity at the walls, the phase change becomes higher with higher values of the sequential velocity parameter (K). There is a 21.6% reduction in phase transition time (tF) between the smallest and highest values of K both in the absence and presence of a constant magnetic field. The value of tF is reduced with higher magnetic field strength and the amount of reduction depends upon the sequential velocity parameter. At K = 1.5, the reduction amount with the highest Ha number is 14.7%, while it is 26% at K = 0.5. When nanoparticle is loaded in the base fluid, the value of tF is further reduced. In the absence of a magnetic field, the amount of phase-transition time reduction is 6.9%, while at Ha = 50, it is 11.7%. The phase change process can be controlled with varying magnetic field parameters as well. As the wave number and amplitude of the varying magnetic field are considered, significant changes in the tF are observed.

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Evaluation of photovoltaic panels using different nano phase change material and a concise comparison: An experimental study

Cited by 87 publications

References 57 publications

Recent advances in phase change materials for thermal energy storage-a review

Recent advances in phase change materials for thermal energy storage-a review

Experimental and numerical study on thermal performance and inlet and outlet structure optimization of phase change heat storage tank

Combined Effects of Sequential Velocity and Variable Magnetic Field on the Phase Change Process in a 3D Cylinder Having a Conic-Shaped PCM-Packed Bed System

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