Numerical Simulation and Field Synergy Principle Analysis on the Characteristic for New Distribution Region of Plate Heat Exchanger

doi:10.3901/JME.2017.06.145

Abstract

Abstract:

Improving plate heat exchanger’s performance by increasing the overall heat transfer, as well as minimising pressure drop is one of the promising fields of research to focus on. In order to analyze the effects of distribution region construction on heat transfer, pressure drop performance and field synergy of plate heat exchanger, the two calculation models for plate heat exchanger is established. The flow and heat transfer characteristics of plate heat exchanger are simulated with computational fluid dynamic software. The velocity, temperature and pressure field of two models and their synergy relationship are compared and analyzed in the various conditions. At the same time, the enhanced heat transfer performances of plate heat exchanger are evaluated detailedly by performance evaluation criteria (PEC).The results show that the uniformity temperature field and better pressure drop effect is got for plate heat exchanger with new distribution region, and its general performances are better than traditional plate heat exchanger. Based on field synergy principle, the synergy between both pressure field and velocity field is improved by distribution region construction. The developed new distribution region of plate heat exchanger can be used for designing of plates with geometry.

Key words: distribution region, field synergy, numerical simulation, plate heat exchanger

ZHANG Zhongbin, ZHANG Hao, LIU Yang, ZHENG Kongqiao, XU Zhiming. Numerical Simulation and Field Synergy Principle Analysis on the Characteristic for New Distribution Region of Plate Heat Exchanger[J]. Journal of Mechanical Engineering, 2017, 53(6): 145-151.

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