Temperature Evolution Inside a Capsule Containing Phase Change Material

Trindade, Joana; Magalhães, Ana M.S.; Ferreira, Violeta; Pinho, Carlos

doi:10.26678/abcm.encit2018.cit18-0065

Cited by 2 publications

(1 citation statement)

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“…The present study concerns the determination of heat transfer coefficients for the design of a concentrated solar energy plant requiring a PCM thermal energy storage. It is part of a set of experiments, where several PCM's were tested in order to obtain heat transfer values [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Some Heat Transfer Data for a Mannitol Derived Phase Change Material

Rocha¹,

Ferreira²,

Magalhães³

et al. 2020

REPQJ

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Heat transfer data for a commercial mannitol derivative, the Plus ICE A164, were obtained in a setup containing a heat exchanger with a single layer of three vertically placed pipes filled with the phase change material (PCM). This PCM has a fusion temperature about 168 ºC. The experimental procedure used an operating cycle composed by a heating and a cooling process, and the PCM temperature time evolution was measured. From these temperature results, the overall heat transfer coefficient, from the heat transfer fluid, a thermal oil, towards the PCM, was of 350 W/(m 2 K), while the average value for the PCM heat transfer coefficient was of 415 W/(m 2 K).

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Section: Introductionmentioning

confidence: 99%

Some Heat Transfer Data for a Mannitol Derived Phase Change Material

Rocha¹,

Ferreira²,

Magalhães³

et al. 2020

REPQJ

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Comparative Heat Transfer Data for Solid-Liquid Phase Change of D-Mannitol and Adipic Acid

Horbatyuk¹,

Magalhães²,

Ferreira³

et al. 2022

EPE

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The goal of this work was to measure the heat transfer rates from thermofluid, Therminol 66, to two phase change materials, D-mannitol and adipic acid. It concerns the determination of heat transfer coefficients for the design of a concentrated solar energy plant requiring PCM thermal energy storage and is part of a wider set of experiments, where several PCMs were tested. An experimental installation was used with a cylindrical vessel with three tubes disposed almost horizontally (5˚ inclination), containing the phase change material, around which the thermal fluid flowed almost perpendicular to the tubes. The experimental installation allowed to recreate heating and cooling cycles. In order to evaluate the influence of the flow on the rate at which the heating and cooling processes took place, tests were performed at different thermofluid mass flow rates, concluding that there is no great influence, since the thermal resistance inside the tubes is much higher than on the outside. D-mannitol and adipic acid, present different phase change temperatures, 164˚C for D-mannitol and 152˚C for adipic acid. The average heat transfer coefficient, during the phase change process, was of 340 W/(m 2 K) for Dmannitol and 1320 W/(m 2 K) for adipic acid.

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Temperature Evolution Inside a Capsule Containing Phase Change Material

Cited by 2 publications

References 0 publications

Some Heat Transfer Data for a Mannitol Derived Phase Change Material

Some Heat Transfer Data for a Mannitol Derived Phase Change Material

Comparative Heat Transfer Data for Solid-Liquid Phase Change of D-Mannitol and Adipic Acid

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