Frozen startup and heat transfer characteristics of a liquid metal alloy high temperature heat pipe on a burning hydrocarbon fuel bed

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-02-24 DOI:10.1016/j.tsep.2025.103445

Li Chang, Yi Wei, Baisheng Ni

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引用次数: 0

Abstract

This study investigates a liquid metal alloy high-temperature heat pipe (LMAHTHP) for enhancing hydrocarbon fuel bed burning efficiency. The cold startup performance and heat transfer characteristics are experimentally studied at different insertion depths (5–40 mm) in a bench-scale burning setup. Felt metal fiber with 96.2 % porosity is used as the capillary wick to provide permeability for the anti-gravity application. The vapor transition temperatures are calculated to determine the vapor state. The vapor transition temperatures are calculated, and the flame source heat load is calculated using radiative and convective theories. As insertion depth increases, the heat load decreases from 744 W to 719 W, 632 W, 583 W, and 685 W. The maximum capillary pressure head reaches 1192 Pa, with the pressure drop mainly due to liquid flow and anti-gravity effects. Thermal resistance peaks at 0.12 °C/W with varying insertion depth. These results suggest that the LMAHTHP offers high reliability and energy-to-weight efficiency, making it a promising technology to improve the burning removal of spilled hydrocarbon fuel.

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.