New Working Fluid-Absorbent System for Absorption Refrigerating Machine and Absorption Heat Pump

吸收式制冷机和吸收式热泵的新型工质吸收系统

基本信息

批准号：
60550165
负责人：
UEMURA Tadashi
金额：
$ 0.9万
依托单位：
Faculty of Engineering, Kansai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1986
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550165/
关键词：
Absorption Refrigerating Machine Absorption Heat Pump Working Fluid Absorbent Methanol Lithium Bromide Zinc Chloride 腐食抑制剤

项目摘要

This investigation was undertaken for obtaining performance characteristics of the water-methanol-lithium bromide-zinc chloride ( 9 weights water / 1 weight methanol , 1 weight lithium bromide / 1 weight zinc chloride ) absorption refrigerating machine and absorption heat pump. The physical properties ( density , viscosity , solubility , vapor pressure and vapor-liquid equilibrium ) and the thermal properties ( specific heat and integral heat of mixing ) were measured. The measurements of density , viscosity , vapor pressure , vapor-liquid equilibrium and specific heat were carried out at various temperatures and absorbent concentrations. Solubility data were obtained in the temperature range of 270.35K to 389.55K. Integral heat of mixing data at 298.15K were obtained in the absorbent concentration range of 0 wt% to 75.16 wt%. The empirical formulas for vapor pressure , specific heat and integral heat of mixing were correlated from experimental data , respectively. From these observed … More data , the enthalpy-concentration chart was constructed. The characteristics of the single stage and double effect absorption refrigerating machines , absorption heat pump and absorption heat transformer were examine by using this enthalpy-concentration chart. The performance characteristics of the water-methanol-lithium bromide-zinc chloride refrigeration , heat pump and heat transformer were compared with that of the various working fluid-absorbent system.On the other hand , a laboratory investigation was carried out in order to find corrosion inhibitors which would be effective in controlling the corrosion for the water- methanol-lithium bromide-zinc chloride system. The experiments were carried out on continuous boiling test , intermittent boiling test and corrosion test in the autoclaves with the use of organic inhibitors and inorganic inhibitors. The metals used in these corrosion tests were mainly SS41 and copper. From these experimental results , the most suitable corrosion inhibitors for SS41 and copper were recognized to be tolyltriazole , 5-methylbenzotriazole , lithium molybdate and lithium nitrate. Less

本研究的目的是为了获得水-甲醇-溴化锂-氯化锌（9重量份水/1重量份甲醇，1重量份溴化锂/1重量份氯化锌）吸收式制冷机和吸收式热泵的物理特性（。测量了密度、粘度、溶解度、蒸气压和汽液平衡）和热性质（比热和混合积分热）。、粘度、蒸气压、汽液平衡和比热在不同温度下进行，吸收剂浓度在270.35K至389.55K温度范围内获得。混合积分热数据在298.15K下获得。吸收剂范围为 0 wt% 至 75.16 wt% 蒸气压、比热和混合积分热的经验浓度公式为根据这些观察到的数据，构建了单级和双效吸收式制冷机、吸收式热泵和吸收式换热器的特性。将水-甲醇-溴化锂-氯化锌制冷、热泵和热变压器与各种工质吸收系统进行了比较。同时，为了寻找有效控制水-甲醇-溴化锂-氯化锌体系腐蚀的缓蚀剂，进行了实验室研究，进行了连续沸腾试验、间歇沸腾试验和腐蚀实验。使用有机抑制剂和无机抑制剂在高压釜中进行测试，这些腐蚀测试中使用的金属主要是 SS41 和铜。从这些实验结果来看，最合适的腐蚀抑制剂是 SS41 和铜。被确认为甲苯基三唑、5-甲基苯并三唑、钼酸锂和硝酸锂。