文章信息/Info

Title:

Research progress of molten salt/metal composites phase change materials for thermal energy storage

文章編號:

16743962(2019)12117709

作者:

趙新波1; 李傳常1; 謝寶珊1; 張波1; 陳薦1; 陳中勝2; 李微1

(1. 長沙理工大學能源與動力工程學院，長沙 410114)
(2. 東華理工大學 核資源與環(huán)境國家重點實驗室培育基地，南昌 330013)

Author(s):

ZHAO Xinbo1;  LI Chuanchang1;  XIE Baoshan1;  ZHANG Bo1;  CHEN Jian 1;  CHEN Zhongsheng 2;  LI Wei1

(1. Key Laboratory of Efficient & Clean Energy Utilization, The Education Department of Hunan Province , School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410114)
(2. State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China Institute of Technology, Nanchang 330013)

關(guān)鍵詞:

熔融鹽; 金屬; 浸漬法; 復合相變儲熱材料; 腐蝕; 儲熱技術(shù)

Keywords:

molten salt;  metal;  impregnation method;  composites phase change materials for thermal energy storage;  corrosion;  thermal energy storage technology

分類號:

TB333； TK11

DOI:

10.7502/j.issn.16743962.201807018

文獻標志碼:

A

摘要:

儲熱技術(shù)可以提高能源利用效率、解決能量供求在時間和空間上不匹配的矛盾，儲熱材料是其實際應用的關(guān)鍵。熔融鹽具有傳熱、儲熱能力，是一種理想的相變儲熱材料，已廣泛應用于儲熱技術(shù)中。熔融鹽的導熱系數(shù)一般為0.5～1.0 W/(m·K)，作為相變儲熱材料，存在導熱系數(shù)低的問題。而通過將其與金屬材料復合可以大幅提高其導熱系數(shù)，增強其儲熱性能，熔融鹽/金屬復合相變儲熱材料已成為熔融鹽應用的重點研究方向之一�？偨Y(jié)了鎳、鋁、銅、鎂等金屬元素以顆粒、泡沫、翅片等結(jié)構(gòu)形式與熔融鹽復合的復合相變儲熱材料的研究進展，還介紹了熔融鹽/金屬復合相變儲熱材料的制備方法及其在工業(yè)余熱回收、太陽能熱發(fā)電方面的應用，同時概述了高溫熔融鹽對金屬的腐蝕行為。

Abstract:

Heat storage technology can improve energy efficiency and solve the contradiction between energy supply and demand in time and space, and the key to its practical application is heat storage materials. With some advantages of heat transfer and heat storage capabilities, molten salt is an ideal phase change heat storage material and has been widely used in thermal energy storage processes. The thermal conductivity of molten salt is 0.5～1.0 W/(m·K) generally, which can not meet the need of using as a phase change heat storage material. The combination of the metal material and the molten salt can greatly improve the thermal conductivity and heat storage performance of the molten salt. Molten salt/metal composite phase change material for thermal energy storage has become a hot point in the application of molten salt. This paper summarizes molten salt composites with nickel, aluminum, copper, magnesium and other metal with the form of particles, foam, fins and other structures. The preparation of molten salt/metal composite phase change materials, and their applications in industrial waste heat recovery and solar thermal power are summarized. Meanwhile, the corrosion behavior of molten salt in high temperature is also reviewed.