Pumping liquid metal at high temperatures up to 1,673 kelvin

被引：74

作者：

Amy, C. ^{[1
]}

Budenstein, D. ^{[1
]}

Bagepalli, M. ^{[1
]}

England, D. ^{[1
]}

DeAngelis, F. ^{[1
]}

Wilk, G. ^{[1
]}

Jarrett, C. ^{[1
]}

Kelsall, C. ^{[1
]}

Hirschey, J. ^{[1
]}

Wen, H. ^{[1
]}

Chavan, A. ^{[1
]}

Gilleland, B. ^{[1
]}

Yuan, C. ^{[1
]}

Chueh, W. C. ^{[2
]}

Sandhage, K. H. ^{[3
,4
]}

Kawajiri, Y. ^{[5
]}

Henry, A. ^{[1
,3
,6
]}

机构：

[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

[2] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[4] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA

[5] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

[6] Georgia Inst Technol, Heat Lab, Atlanta, GA 30332 USA

来源：

NATURE | 2017年 / 550卷 / 7675期

关键词：

CONCENTRATED SOLAR POWER; HEAT-TRANSFER FLUIDS; CENTRAL RECEIVER SYSTEMS; THERMAL-ENERGY STORAGE; DESIGN; ALUMINUM; ALLOYS; TIN; TECHNOLOGIES; EFFICIENCY;

D O I：

10.1038/nature24054

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

Heat is fundamental to power generation and many industrial processes, and is most useful at high temperatures because it can be converted more efficiently to other types of energy. However, efficient transportation, storage and conversion of heat at extreme temperatures (more than about 1,300 kelvin) is impractical for many applications. Liquid metals can be very effective media for transferring heat at high temperatures, but liquid-metal pumping has been limited by the corrosion of metal infrastructures. Here we demonstrate a ceramic, mechanical pump that can be used to continuously circulate liquid tin at temperatures of around 1,473-1,673 kelvin. Our approach to liquid-metal pumping is enabled by the use of ceramics for the mechanical and sealing components, but owing to the brittle nature of ceramics their use requires careful engineering. Our set-up enables effective heat transfer using a liquid at previously unattainable temperatures, and could be used for thermal storage and transport, electric power production, and chemical or materials processing.

引用

页码：199 / +

页数：13

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