Energy storage materials for phase change heat devices recovering industrial waste heat for heating purposes

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2024-11-20 DOI:10.1016/j.icheatmasstransfer.2024.108376

Quanying Yan, Bai Mu

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Abstract

The abundance of industrial waste heat resources offers valuable opportunities for the utilization of phase change heat exchangers in clean energy applications. This study focuses on the innovative development of binary phase change material (PCM) composed of paraffin and stearic acid (SA) in various ratios, aimed at optimizing waste heat recovery. Comprehensive analyses of the phase change temperature, latent heat, and thermal conductivity of these mixtures were conducted. The research identified a mixture with a 20 % paraffin and 80 % stearic acid ratio, which exhibits a phase change temperature of 62.73 °C and a latent heat of 205.53 J/g. This mixture stands out due to its minimal subcooling and consistent thermal properties, making it highly effective for low-temperature waste heat recovery. Additionally, a novel process design and simulation system for using these materials in heat exchangers to convert intermittent industrial waste heat into continuous thermal energy for heating were developed.

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用于回收工业余热供暖的相变热装置的储能材料

丰富的工业余热资源为在清洁能源应用中利用相变热交换器提供了宝贵的机会。本研究的重点是创新开发由不同比例的石蜡和硬脂酸（SA）组成的二元相变材料（PCM），旨在优化废热回收。对这些混合物的相变温度、潜热和热传导率进行了全面分析。研究确定了一种石蜡和硬脂酸比例为 20% 和 80% 的混合物，其相变温度为 62.73 °C，潜热为 205.53 焦耳/克。这种混合物具有最小的过冷度和稳定的热性能，因此在低温余热回收方面非常有效。此外，还开发了一种新的工艺设计和模拟系统，用于在热交换器中使用这些材料，将间歇性工业废热转化为连续的供热热能。

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.