Experimental study of adsorption equilibrium of water on zeolite and adsorption heat storage under low relative vapor pressure

被引：4

作者：

Kanamori, M ^{[1
]}

Hiramatsu, M

Shibata, T

Watanabe, F

Matsuda, H

Hasatani, M

机构：

[1] Chuba Elect Power Co Inc, Electrotechnol Applicat R&D Ctr, Nagoya, Aichi 459, Japan

[2] Nagoya Univ, Dept Energy Engn & Sci, Nagoya, Aichi 46401, Japan

来源：

KAGAKU KOGAKU RONBUNSHU | 1998年 / 24卷 / 02期

关键词：

adsorption; heat storage; zeolite; adsorption equilibrium; water; sodium chloride;

D O I：

10.1252/kakoronbunshu.24.243

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To apply the adsorption/desorption behavior of water on zeolite to a heat storage system which can generate both warm and cold heat, equilibrium data under low relative vapor pressure were measured. Based on the data the adsorptivities under adsorption/desorption are estimated. Heat storing/releasing characteristics were also studied by using an experimental heat storage device with 20 wt-% sodium chloride solution and zeolite 13 X. Heat storing/releasing cycles which have adsorptivity higher than 0.1 kg . kg(-1) per cycle even under relative vapor pressure as low as 0.1 and an evaporation process at temperatures lower than 0 degrees C, are achieved. A water-zeolite type heat storage system using a slight amount of sodium chloride for lowering the solidification point of water is proposed for heating and freezing applications.

引用

页码：243 / 247

页数：5