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Semi-open heat pipes were studied experimentally in this work. A new kind of semi-open heat pipe with fluid swirl backflow was developed on the basis of the traditional semi-open heat pipe. Heat transfer characteristics during operation and start-up of closed heat pipe?traditional semi-open heat pipe and swirl flow semi-open heat pipe were investigated. The swirl orifice’s backflow effect on enhancing the working limitation was obtained. Heat exchangers or waste heat boilers made of swirl flow semi-open heat pipes and semi-open heat pipes have been successfully used in high or variable gas temperature engineering applications.
Semi-open heat pipes were studied experimentally in this work. A new kind of semi-open heat pipe with fluid swirl backflow was developed on the basis of the traditional semi-open heat pipe. Heat transfer characteristics during operation and start-up of closed heat pipe? semi-open heat pipe and swirl flow semi-open heat pipe were investigated. heat exchanger or waste heat boilers made of swirl flow semi-open heat pipes and semi -open heat pipes have been successfully used in high or variable gas temperature engineering applications.