A Hybrid Thermal Energy Storage Device, Part 2: Thermal Performance Figures of Merit

Zheng, Ning; Wirtz, R. A.

doi:10.1115/1.1646420

Cited by 18 publications

(4 citation statements)

References 2 publications

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“…Zheng and Wirtz [7] used volumetric and temperature control figure of merit to design attributes of a plate fin thermal storage unit. Baby and Balaji [8,9] performed experimental investigations on porous matrix and plate fin matrix embedded PCM based heat sinks and determined the enhancement in thermal performance achieved, when compared to a baseline configuration having no TCE.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of PCM Based Heat Sinks with Embedded Metal Foam/Crossed Plate Fins

Srivatsa

Baby

Balaji

2014

Numerical Heat Transfer, Part A: Applications

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Three-dimensional numerical models for phase change material based heat sinks equipped with thermal conductivity enhancers like aluminum metal foam and crossed plate fins are validated with the experimental data found in literature. For the aluminum metal foam embedded in the heat sink filled with phase change material, the porosity and the pores per inch of the metal foam were varied and natural convection currents were studied. Maintaining the volume fraction of the phase change material as a constant, the thermal performance enhancement as a result of the introduction of thermal conductivity enhancer into the heat sinks is determined.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of PCM Based Heat Sinks with Embedded Metal Foam/Crossed Plate Fins

Srivatsa

Baby

Balaji

2014

Numerical Heat Transfer, Part A: Applications

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“…Yoo et al [10] manufactured grooves inside the plate fin and pin fin, filled these with PCM to promote heat handling capability. Zheng et al [11,12] exploited the high storage density characteristic of PCM to reduce fan power consumption of electronic devices up to 12.4%. Similarly, other researchers have also investigated the PCM characteristics with the aim of improving the thermal energy storage and electronic cooling [13,14].…”

Section: Introductionmentioning

confidence: 99%

Heating and cooling capacity of phase change material coupled with screen mesh wick heat pipe for thermal energy storage applications

et al. 2020

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In this study, the heat retention as well as cooling time of the PCM-water are estimated at different heat loads and flow rates of condenser coolant. Similarly, the thermal resistance, evaporator and condenser heat transfer coefficients are also estimated at different heat loads. It is observed that the PCM takes more time during heating and cooling cycles to reach the steady-state temperatures and the temperature values reached during heating are also higher for PCM compared to water. The use of PCM enhances the thermal storage capacity and shows a maximum enhancement of 200% in heat retention time compared to water at 50 W. Moreover, a maximum enhancement of 63.6% is observed in the steady-state temperature of the PCM compared to water. Similarly thermal resistance, evaporator wall temperature and heat transfer coefficients of the heat pipe also vary for PCM and water. The experimental results indicate that PCM or water can be used in this combined system depending upon requirement of thermal storage or electronics cooling.

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“…The advantages of solid-solid phase transformations are that a liquid phase need not be contained, segregation of components is less likely, and stable composites may be fabricated in which the solid-solid PCM is dispersed [15]. Zheng and Wirtz [16][17] developed a semiempirical thermal response model for a hybrid heat sink where solid-solid PCMs are used. The design of a plate-type TES unit is optimized to minimize the temperature difference between the base and the transition of phase These last applications seem to be of interest in high power amplifiers characterized by different levels of power dissipation.…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis of a PCM Energy Storage System

Casano¹,

Piva²

2015

IJHT

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Heat storage systems using phase change materials (PCMs in the following) are an effective way of storing thermal energy due to the high energy storage density and the isothermal nature of the storage process. In recent years the utilization of PCMs has been also considered in the thermal control of compact electronic devices. In the present work a parametric analysis is presented for an energy storage system with a phase change material, undergoing a heat flow boundary condition, as happens in the electronic equipment cooling. In particular we analyze a hybrid systems composed of a finned surfaces partially filled with PCM. This solution which combine both passive (PCM) and active (fins and fans) cooling solutions, seems to be of interest in high power amplifiers characterized by different levels of power dissipation. This is the case of the telecom base station power amplifiers, where the power is proportional to the traffic load. The results are obtained with a specific finite volumes code. The mathematical model is made dimensionless to allow the characteristic parameters to be evidenced. The proposed parameterization lends generality to the results obtained. In particular the relationships have been investigated between the melting point of the PCM and the operating temperature reached during the peak of the input power. The study provides useful information for the design of these passive cooling systems.

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A Hybrid Thermal Energy Storage Device, Part 2: Thermal Performance Figures of Merit

Cited by 18 publications

References 2 publications

Numerical Investigation of PCM Based Heat Sinks with Embedded Metal Foam/Crossed Plate Fins

Numerical Investigation of PCM Based Heat Sinks with Embedded Metal Foam/Crossed Plate Fins

Heating and cooling capacity of phase change material coupled with screen mesh wick heat pipe for thermal energy storage applications

Parametric Analysis of a PCM Energy Storage System

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