Analysis of Heat Transfer Performance and Design of Single-effect Lithium Bromide-water Absorption Chillers Using Plastic Pipes

There are extensive applications of lithium bromide-water absorption chillers in industry,but the heat exchanger corrosion and refrigerating capacity loss are very difficult to be solved.In our research,the problem was solved by using plastic heat transfer pipes instead of copper pipes.The plastic heat exchangers and lithium bromide-water absorption chillers using plastic pipes were designed.The heat transfer pipes of plastic heat exchangers were poly tetra fluoro ethylene(PTFE) pipes.And the disposal of heat transfer pipes was Archimedean spiral pipes.In addition,the heat transfer performance of plastic heat exchangers was analyzed.The result shows that the absorber using PTFE pipes instead of traditional metal pipes can be most use value in lithium bromide-water absorption chillers.