Thermal management of concentrator photovoltaic systems using nano‐enhanced phase change materials‐based heat sink

Zarma, Ismaila Haliru; Emam, Mohamed; Ahmed, Mahmoud

doi:10.1002/er.5504

Cited by 16 publications

(9 citation statements)

References 41 publications

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“…In the application of PCMs, nanoparticles are also used and their potential in improving the PC process and thermal performance were analyzed. [37][38][39][40][41][42][43][44] Sheikholeslami 45 used CuO nanoparticles in water for analysis of unsteady PC process. Adaptive mesh with FEM was used for the simulation while different particle shapes were considered.…”

Section: Introductionmentioning

confidence: 99%

Effects of using phase change material and non‐Newtonian power law nanofluid on different sides of a double pipe heat exchanger for phase change dynamics and energy performance improvements

Selimefendigil

Öztop

2021

Energy Storage

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In this study, the effects of using phase change material (PCM) and non-Newtonian power law (PL) fluid on the performance features of a double pipe heat exchanger were numerically assessed with finite element technique. PCM and PL fluid were used in different sides of the heat exchanger while impacts of cold side fluid Re number, nanoparticles loading amount, and PL index of fluid on the dynamics characteristics of phase change process, and thermal performance were examined. There is a reduction of 71.5% in the full phase transition time (td) when cases with Re = 100 and Re = 300 are compared while cold fluid exit temperature rises by about 5.8 K with PCM-installed heat exchanger as compared to non-PCM configuration at Re = 300. As cases with different PL indices (n) between n = 0.8 and n = 1.2 are compared, the value of td rises by about 34%. For different nanoparticle loading, variation of td depends upon the PL index and its value rises with higher n at the highest solid volume fraction. The particle size has also impacts on the variation of td and exit temperatures which is more pronounced for power n values. A polynomial regression model is used for the estimation of td.

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Section: Introductionmentioning

confidence: 99%

Effects of using phase change material and non‐Newtonian power law nanofluid on different sides of a double pipe heat exchanger for phase change dynamics and energy performance improvements

Selimefendigil

Öztop

2021

Energy Storage

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“…The properties of nanocomposite PCMs vary according to the base PCM and additives used. Zarma et al 13 prepared a nano‐enhanced PCM with n‐octadecane and graphene nanoparticles at 2 wt% and 5 wt%. The prepared nano‐enhanced PCM was used to decrease the cell temperature of the concentrated photovoltaic system, and a better solar mean temperature was achieved for PCM with 5 wt% of graphene.…”

Section: Introductionmentioning

confidence: 99%

Thermophysical investigation of metallic nanocomposite phase change materials for indoor thermal management

Chinnasamy

Cho

2022

Intl J of Energy Research

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Summary This experimental work discusses the thermophysical investigation of metallic nanocomposite PCMs having a potential application in indoor thermal management. Organic fatty alcohol (lauryl alcohol) was used as a phase change material (PCM). Four metallic nanoparticles, namely Al2O3, CuO, Fe3O4, and SiC at the concentrations of 1 wt%, 3 wt%, 5 wt%, were used to prepare nanocomposite PCMs, and their phase change properties were investigated. The results showed a minor change in the phase change temperatures, and the latent heat values varied between 6.56% and 18.5%. Besides, the degree of supercooling was reduced for nanocomposite PCMs. Fourier transform infrared spectroscopy, and thermogravimetric analysis showed no chemical reaction between the nanoparticles and the base PCM. The nanocomposite PCMs decomposed above 110°C, higher than the proposed application temperature range. In addition, the maximum enhancement in thermal conductivity of PCM at 10°C with 5 wt% of Al2O3, CuO, Fe3O4, and SiC nanoparticles were about 29.1%, 52.2%, 9.2%, and 17.9%, respectively. The endothermic freezing process was carried out, and lower phase change duration was recorded for nanocomposite PCMs compared to pure PCM. Based on various experimental studies, Al2O3 and CuO nanocomposite PCMs exhibits significantly improved thermal and physical properties than the Fe3O4 and SiC nanocomposite PCMs and can be used as a potential thermal energy storage material for indoor thermal comfort applications.

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“…PCM find application in a variety of commercial and residential applications such as waste heat recovery, thermal control of building, refrigeration and air-conditioning, spacecraft and satellite, textile industries, photovoltaic system, heat exchanger, and cooling of electronics because of its isothermal phase change behavior. [11][12][13][14][15] The latent heat thermal energy storage system (LHTESS) involving PCMs (especially organic) is found to be very effective in stretching the overheating time of the critical components of the electronic devices subjected to an intermittent and higher value of heat flux. Among others, organic PCM is widely recommended because of favorable chemical and thermophysical properties such as higher value of latent heat of fusion on a volumetric basis, non-corrosiveness, high specific heat, low toxicity, congruent melting, and almost isothermal solid-liquid phase transformation.…”

Section: Introductionmentioning

confidence: 99%

“…PCM find application in a variety of commercial and residential applications such as waste heat recovery, thermal control of building, refrigeration and air‐conditioning, spacecraft and satellite, textile industries, photovoltaic system, heat exchanger, and cooling of electronics because of its isothermal phase change behavior 11‐15 . The latent heat thermal energy storage system (LHTESS) involving PCMs (especially organic) is found to be very effective in stretching the overheating time of the critical components of the electronic devices subjected to an intermittent and higher value of heat flux.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of cross plate fin heat sink integrated with phase change material for cooling application of portable electronic devices

et al. 2021

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The design of thermal management system needs to be made in such a way that can avoid the possible overheating and failure of electronic components because of higher power density. Thermal performance of heat sink (HS) configurations involving different number of cavities (1, 4, 9, 16, 25, and 36), formed by cross plate fins arrangement, as applicable to thermal management of electronic components, are studied numerically by employing pressure-based finite volume method. Mass and thermal capacity of each HS configuration are kept constant and various heat flux values (1.0, 1.5, and 2.0 kW/m 2 ) are used in the analysis.The performance of various HS configurations is evaluated based on the transient temperature variation of HS base, PCM melt fraction, average Nusselt number, and energy absorbed by PCM through both latent and sensible heat. The study also investigates the effect of various PCM materials on thermal performance of HS. Maximum 10 C of temperature reduction is achieved in case of HS with 25 cavities compared to HS with a single cavity. For HS with 36 cavities, the melting time of the PCM reduces by 46.5% with the increase in the heat flux values from 1.0 to 2.0 kW/m 2 . The study on effect of PCM type reveals that paraffin wax is ideally suited for those electronic devices which have the critical set point temperature (SPT) above 60 C and below 70 C.

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Thermal management of concentrator photovoltaic systems using nano‐enhanced phase change materials‐based heat sink

Cited by 16 publications

References 41 publications

Effects of using phase change material and non‐Newtonian power law nanofluid on different sides of a double pipe heat exchanger for phase change dynamics and energy performance improvements

Effects of using phase change material and non‐Newtonian power law nanofluid on different sides of a double pipe heat exchanger for phase change dynamics and energy performance improvements

Thermophysical investigation of metallic nanocomposite phase change materials for indoor thermal management

Numerical investigation of cross plate fin heat sink integrated with phase change material for cooling application of portable electronic devices

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