Effects of Liquid Receiver on the Start-up and Heat Transfer Performance of the Pulsating Heat Pipe

Using visualization experiment as the research method,start-up performance test study and heat transfer performance calculation were carried out for the common single loop pulsating heat pipe with additional liquid receiver by controlling the temperatures at the evaporating and condensing sections of the single loop pulsating heat pipe.Results show that the common single loop pulsating heat pipe won't start-up under the condition of slow heating of the evaporating section.And adding liquid receiver can effectively improve the start-up performance.Under steady operation,the heat transfer performance of the improved single loop pulsating heat pipe is the best.Further optimization for the structure of the liquid receiver is needed to satisfy the application at high load.