''Chemical Heat Accumulators'': A new approach to accumulating low potential heat

被引：94

作者：

Levitskij, EA ^{[1
]}

Aristov, YI ^{[1
]}

Tokarev, MM ^{[1
]}

Parmon, VN ^{[1
]}

机构：

[1] NOVOSIBIRSK CATALYSIS INST,NOVOSIBIRSK 630090,RUSSIA

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1996年 / 44卷 / 03期

关键词：

heat storage; composite sorbents; hydration dehydration;

D O I：

10.1016/0927-0248(96)00010-4

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The first presentation of new composite Chemical Heat Accumulation materials based on granulated open-porous matrix filled with a hygroscopic substance is given. At storing heat, the materials operate in a reversible hydration/dehydration mode. When crystalline hydrates of simple salts are used as the hygroscopic substance, the new materials allow to reach the heat storing capacity up to 2000 kJ kg(-1) even for accumulation of low temperature heat (of circa 20-40 degrees C). The materials also possess improved properties for mass and heat transfer. All these make a serious advantage of these materials in comparison with those using a latent melting-solidification heat as well as with zeolites capable of reversible hydration/dehydration. The new materials can be widely used in energy efficient and freons-less air conditioning devices, for cooling the electronic units, fire-extinguishing and some other applications.

引用

页码：219 / 235

页数：17