A novel heat sink for cooling photovoltaic systems using convex/concave dimples and multiple PCMs

Soliman, Ahmed Saad; Xu, Li; Dong, Junguo; Cheng, Ping

doi:10.1016/j.applthermaleng.2022.119001

Cited by 13 publications

(2 citation statements)

References 52 publications

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“…The hot water is used to heat the capsule at different velocities using a supply valve (5) which regulates the water discharge rate to the test section (1). The valve ( 7) is used to bypass the excess water from the pump to the tank via a bypass connection (6), to prevent the pump from overheating. The test section (1) is a rectangular cross-section channel of 8 cm by 10 cm, and 15 cm in height.…”

Section: Experimental Setup and Proceduresmentioning

confidence: 99%

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Effect of Mushy Zone Parameter on Phase Change Behavior of Different Configurations Storage Unit: Numerical Simulation and Experimental Validation

Soliman

Sultan

2022

Sustainability

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The melting process of paraffin wax placed in storage capsules of different shapes was experimentally and numerically studied. The phase change material (PCM) was initially at 27 °C. The effect of the mushy zone parameter (Amush) value on the melting process of the PCM was studied with storage capsules of different shapes (circular, vertical oval, and horizontal oval). The results of the numerical model were validated with the experimental results to obtain the optimum Amush value for each shape of the latent heat storage unit. The results showed that the value of the Amush has a great impact on the numerical results of the PCM melting process and changes with the shape of the storage capsule. The rate of heat transfer, convection, and fluid velocity all decrease as the Amush value rises. The experimental results of the circular, vertical oval, and horizontal oval capsules match very well with the numerical model with Amush values equal to 2 × 106, 1 × 105, and 1 × 106, respectively.

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Section: Experimental Setup and Proceduresmentioning

confidence: 99%

“…Thus, PCMs demonstrate one of the best techniques used in thermal energy storage applications [2,3]. They are used in several engineering applications, for example, the technology of electronic cooling, waste heat recovery systems [4,5], solar cell systems [6], absorption systems [7], ventilation, and air conditioning (HVAC) systems [8].…”

Section: Introductionmentioning

confidence: 99%