Melting Enhancement of Phase Change Material with Fins and Graphene Nanoplatelets Under Micro/Low Gravity for Thermal Management in Space Detector

IF 1.3 4区工程技术 Q2 ENGINEERING, AEROSPACE

Microgravity Science and Technology Pub Date : 2025-04-17 DOI:10.1007/s12217-025-10175-7

Hao Peng, Kelong Jiang, Jianfu Zhao, Yujuan Gan, Yijun Shen

{"title":"Melting Enhancement of Phase Change Material with Fins and Graphene Nanoplatelets Under Micro/Low Gravity for Thermal Management in Space Detector","authors":"Hao Peng, Kelong Jiang, Jianfu Zhao, Yujuan Gan, Yijun Shen","doi":"10.1007/s12217-025-10175-7","DOIUrl":null,"url":null,"abstract":"<div><p>Thermal energy storage is an efficient way for thermal control of near-earth and deep space detectors, but the melting rate is restricted by low heat transfer performance of phase change material (PCM) and disappearance or suppression of natural convection under micro/low gravity. To accelerate melting of PCM under micro/low gravity, graphene nanoplatelet (GNP)-enhanced PCM with fins are proposed. The effects of fin shape, GNP concentration and gravity level on dynamic melting characteristics considering thermocapillary convection are investigated. The results show that the improvement effect of rectangular fins on melting rate is higher than that of triangular fins under microgravity; with the decrease of gravity level, the melting rate is reduced. The presence of GNP significantly promotes the melting under micro/low gravity. At GNP concentration of 0.03 vol%, the reduction of melting time can reach 58.2%, 49.4% and 51.6% at microgravity, moon’s gravity of 1.625 m s<sup>−2</sup> and Mars’ gravity of 3.711 m s<sup>−2</sup>, respectively.</p></div>","PeriodicalId":707,"journal":{"name":"Microgravity Science and Technology","volume":"37 3","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microgravity Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s12217-025-10175-7","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, AEROSPACE","Score":null,"Total":0}

引用次数: 0

Abstract

Thermal energy storage is an efficient way for thermal control of near-earth and deep space detectors, but the melting rate is restricted by low heat transfer performance of phase change material (PCM) and disappearance or suppression of natural convection under micro/low gravity. To accelerate melting of PCM under micro/low gravity, graphene nanoplatelet (GNP)-enhanced PCM with fins are proposed. The effects of fin shape, GNP concentration and gravity level on dynamic melting characteristics considering thermocapillary convection are investigated. The results show that the improvement effect of rectangular fins on melting rate is higher than that of triangular fins under microgravity; with the decrease of gravity level, the melting rate is reduced. The presence of GNP significantly promotes the melting under micro/low gravity. At GNP concentration of 0.03 vol%, the reduction of melting time can reach 58.2%, 49.4% and 51.6% at microgravity, moon’s gravity of 1.625 m s⁻² and Mars’ gravity of 3.711 m s⁻², respectively.

查看原文本刊更多论文

微/低重力下鳍片和石墨烯纳米片增强相变材料在空间探测器热管理中的熔化

热能储存是近地和深空探测器热控制的有效手段，但相变材料传热性能差、微/低重力下自然对流消失或抑制等因素限制了其熔化速度。为了加速PCM在微/低重力下的熔化，提出了带翅片的石墨烯纳米板（GNP）增强PCM。研究了考虑热毛细对流的翅片形状、GNP浓度和重力水平对动态熔化特性的影响。结果表明：在微重力条件下，矩形翅片对熔速的改善作用大于三角形翅片；随着重力水平的降低，熔化速率降低。GNP的存在显著促进了微/低重力下的熔融。当GNP浓度为0.03 vol%时，在微重力、月球重力为1.625 m s−2和火星重力为3.711 m s−2条件下，熔化时间减少率分别达到58.2%、49.4%和51.6%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Microgravity Science and Technology 工程技术-工程：宇航

CiteScore

3.50

自引率

44.40%

发文量

期刊介绍： Microgravity Science and Technology – An International Journal for Microgravity and Space Exploration Related Research is a is a peer-reviewed scientific journal concerned with all topics, experimental as well as theoretical, related to research carried out under conditions of altered gravity. Microgravity Science and Technology publishes papers dealing with studies performed on and prepared for platforms that provide real microgravity conditions (such as drop towers, parabolic flights, sounding rockets, reentry capsules and orbiting platforms), and on ground-based facilities aiming to simulate microgravity conditions on earth (such as levitrons, clinostats, random positioning machines, bed rest facilities, and micro-scale or neutral buoyancy facilities) or providing artificial gravity conditions (such as centrifuges). Data from preparatory tests, hardware and instrumentation developments, lessons learnt as well as theoretical gravity-related considerations are welcome. Included science disciplines with gravity-related topics are: − materials science − fluid mechanics − process engineering − physics − chemistry − heat and mass transfer − gravitational biology − radiation biology − exobiology and astrobiology − human physiology