{"title":"在高效电子设备冷却过程中,通过便携式热管电池促进废热收集和发电","authors":"","doi":"10.1016/j.apenergy.2024.124397","DOIUrl":null,"url":null,"abstract":"<div><p>The power consumption of data centers (DCs) has increased dramatically due to the rising demand for computing power. However, a huge amount of low-grade electronic waste heat generated by these DCs is dissipated directly into the environment with the assistance of the energy-driven cooling system, thereby doubling the production of energy waste. Thus, innovative cooling and low-grade waste heat recovery technologies in DCs are urgently needed. In this study, we proposed a loop heat pipe battery (LHPB) with dual gradient wicks relay. According to the gradient wick relay strategy, the heat leakage at the evaporator inlet was alleviated, allowing the vapor inside to remove heat more rapidly and impact the micro-generator installed at the condenser inlet. Furthermore, two kinds of high-efficiency microgenerators were designed. The experimental results showed that under forced convection cooling of a 12 V fan, the cooling capacity of the LHPB with wicks relay was 288 W with a junction temperature maintained below 85 °C. The minimum total thermal resistance and nominal power usage effectiveness were 0.20 °C/W and 1.0015, respectively. The maximum rotor speed was 10,716 r/min and the maximum output power of the two generators was 195 and 280 mW. The LHPB with wicks relay demonstrated an innovative solution to promote low-grade waste heat harvesting during efficient electronics cooling and the potential to be a promising energy-saving device in future DCs. The proposed optimization strategy provides guidance for the evolution of the LHPB with wicks relay.</p></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":null,"pages":null},"PeriodicalIF":10.1000,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"To boost waste heat harvesting and power generation through a portable heat pipe battery during high efficient electronics cooling\",\"authors\":\"\",\"doi\":\"10.1016/j.apenergy.2024.124397\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The power consumption of data centers (DCs) has increased dramatically due to the rising demand for computing power. However, a huge amount of low-grade electronic waste heat generated by these DCs is dissipated directly into the environment with the assistance of the energy-driven cooling system, thereby doubling the production of energy waste. Thus, innovative cooling and low-grade waste heat recovery technologies in DCs are urgently needed. In this study, we proposed a loop heat pipe battery (LHPB) with dual gradient wicks relay. According to the gradient wick relay strategy, the heat leakage at the evaporator inlet was alleviated, allowing the vapor inside to remove heat more rapidly and impact the micro-generator installed at the condenser inlet. Furthermore, two kinds of high-efficiency microgenerators were designed. The experimental results showed that under forced convection cooling of a 12 V fan, the cooling capacity of the LHPB with wicks relay was 288 W with a junction temperature maintained below 85 °C. The minimum total thermal resistance and nominal power usage effectiveness were 0.20 °C/W and 1.0015, respectively. The maximum rotor speed was 10,716 r/min and the maximum output power of the two generators was 195 and 280 mW. The LHPB with wicks relay demonstrated an innovative solution to promote low-grade waste heat harvesting during efficient electronics cooling and the potential to be a promising energy-saving device in future DCs. The proposed optimization strategy provides guidance for the evolution of the LHPB with wicks relay.</p></div>\",\"PeriodicalId\":246,\"journal\":{\"name\":\"Applied Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.1000,\"publicationDate\":\"2024-09-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Energy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S030626192401780X\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S030626192401780X","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
To boost waste heat harvesting and power generation through a portable heat pipe battery during high efficient electronics cooling
The power consumption of data centers (DCs) has increased dramatically due to the rising demand for computing power. However, a huge amount of low-grade electronic waste heat generated by these DCs is dissipated directly into the environment with the assistance of the energy-driven cooling system, thereby doubling the production of energy waste. Thus, innovative cooling and low-grade waste heat recovery technologies in DCs are urgently needed. In this study, we proposed a loop heat pipe battery (LHPB) with dual gradient wicks relay. According to the gradient wick relay strategy, the heat leakage at the evaporator inlet was alleviated, allowing the vapor inside to remove heat more rapidly and impact the micro-generator installed at the condenser inlet. Furthermore, two kinds of high-efficiency microgenerators were designed. The experimental results showed that under forced convection cooling of a 12 V fan, the cooling capacity of the LHPB with wicks relay was 288 W with a junction temperature maintained below 85 °C. The minimum total thermal resistance and nominal power usage effectiveness were 0.20 °C/W and 1.0015, respectively. The maximum rotor speed was 10,716 r/min and the maximum output power of the two generators was 195 and 280 mW. The LHPB with wicks relay demonstrated an innovative solution to promote low-grade waste heat harvesting during efficient electronics cooling and the potential to be a promising energy-saving device in future DCs. The proposed optimization strategy provides guidance for the evolution of the LHPB with wicks relay.
期刊介绍:
Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.