RESEARCH OF PULSATIONG HEAT PIPE TYPE EXHAUST HEAT RECOVERY SYSTEM FOR HIGH TEMPERATURE AND HUMIDITY ENVIRONMENT

摘要

In this study, we developed and tested Pulsating Heat Pipe(PHP) type Exhaust Heat Recovery System(EHRS) for high temperature and humidity environment.Experiment performed by varying the charging ratio, number of PHP module, length ratio of condensation and evaporation part and type of heat exchangers.Working fluid is R-134a.Consequently, efficiencies of temperature and enthalpy are highest when charging ratio is 50％ of container's inner volume, length ratio of condensation and evaporation part is 5 : 5 and using extruded tube heat exchanger.