Heat Transfer Properties and Chaotic Analysis of Parallel Type Pulsating Heat Pipe

• Published in: Transactions of Tianjin University Vol. 17; no. 6; pp. 435 - 439
• Main Authors: Shi, Weixiu, Li, Weiyi, Pan, Lisheng, Tan, Xifeng
• Format: Journal Article
• Language: English
• Published: Heidelberg Tianjin University 01.12.2011; School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
• Subjects: Engineering; Humanities and Social Sciences; Mechanical Engineering; multidisciplinary; Science; 乙醇水溶液; 传热性能; 并行; 混合制冷剂; 混沌分析; 脉动热管; 运行特点; 运行状态; parallel type pulsating heat pipe; attractor; ethanol aqueous; chaotic analysis
• ISSN: 1006-4982; 1995-8196
• DOI: 10.1007/s12209-011-1638-9

The refrigerant mixture of ethanol aqueous was applied to the parallel type pulsating heat pipe （PHP）. The operation characteristics of the PHP were analyzed by means of experiment and nonlinear chaotic theory. Moreover, the relationship between the running state and attractor was described. The results indicate that starting power, stable running power and dry burning transition power are about 64.08 W, 148.68 W and 234.0 W respectively. The cycle and amplitude of PHP initially decrease and then increase with the increasing power. However, the data are well- distributed in a certain range. The running state is in agreement with the attractors, and the changing process for attrac- tors is as follows： the attractors first disperse in the whole phase space, then present mass status, and finally show band distribution.