Absorption Refrigerating Machine, Heat Pump and Dehumidifier Using Water+Ethylene Glycol+Lithium Chloride System and Water+Lithium Chloride System

采用水乙二醇氯化锂系统和水氯化锂系统的吸收式制冷机、热泵和除湿机

基本信息

批准号：
13650239
负责人：
UEMURA Tadashi
金额：
$ 1.86万
依托单位：
Kansai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

项目摘要

This investigation was undertaken to examine whether the water + ethylene glycol + lithium chloride system (lithium chloride: ethylene glycol=4.9 : 1.0 mass) are suited for absorption refrigerating machines and heat pumps. Measurements of the physical properties (density, viscosity, surface tension, solubility and vapor pressure) and the thermal properties (heat capacity and heat of mixing) of lithium chloride+ethylene glycol aqueous solutions were carried out at various temperatures and absorbent concentrations. Empirical formulae of the density, viscosity, surface tension, solubility and heat capacity of these ternary systems were obtained from experimental data. The vapor pressure data were correlated as an Antoine-type equation. The hear of mixing data were correlated as a Redlich-Kister type equation. A theoretical analysis of the coefficient of performance was undertaken to examine the performance characteristics of the water + ethylene glycol + lithium chloride system. The coeff … More icient of performance for absorption refrigerating machines and absorption heat transformers was calculated using the enthalpies at various temperatures, pressures and absorbent concentrations. Two types of absorption refrigerating machines, two types of absorption heat transformers, two types of hybrid cycles, and a dual cycle were adopted for simulation. The performance characteristics of these systems were compared with those of the water + lithium bromide system, the water + lithium chloride system, the water + lithium bromide + ethylene glycol system and the water + lithium bromide + diethylene glycol system. Furthermore, by changing flow rate of lithium chloride aqueous solution, the number of bacteria in entrance and exit of this dehumidifier was examined. Bacteria were not detected from after dehumidifier starting operation 90 minutes. In the dehumidifier using lithium chloride aqueous solution, it was proven that there was sufficient sterilizing power. Minimum inhibition concentration (MIC) of some kinds of surface active agents as additive of lithium chloride aqueous solution using bacteria sterilizer were examined. Less

进行了这项投资，以检查水 +乙二醇 +氯化锂系统（氯化锂：乙烯乙二醇= 4.9：1.0质量）是否适合分析冷藏机和热泵。在各种温度和吸收浓度下，进行了物理性能（密度，粘度，表面张力，溶液和蒸气压）以及氯化二氧化乙二醇水溶液的热性能（混合热容量和混合热的热能和混合热）的测量。这些三元系统的密度，粘度，表面张力，溶解度和热容量的经验公式是从实验数据中获得的。蒸气压数据是作为Antoine型方程的。混合数据的听觉是作为红色吉机型方程相关的。进行了核心性能的理论分析，以检查水 +乙二醇 +氯化锂系统的性能特征。系数…使用在各种温度，压力和吸收浓度下的焓来计算出抽象制冷机和抽象热变压器的表现。采用了两种类型的抽象制冷机，两种类型的抽象热变压器，两种类型的杂交周期和一个双周期进行模拟。将这些系统的性能特性与水 +溴化锂系统，水 +铬化锂系统，水 +铬铁 +乙二醇 +乙二醇系统和水 +铬酸锂 +二乙烯甘油乙二醇系统进行了比较。此外，通过更改铬化锂水溶液的流速，检查了该除湿剂的入口和退出中的细菌数量。除湿剂开始操作90分钟后，未检测到细菌。在使用Chromide锂水溶液的除湿剂中，证明有足够的灭菌功率。检查了某些表面活性剂的最小抑制浓度（MIC），作为使用细菌灭菌剂的氯化锂水溶液的添加剂。较少的