Simulation of velocity distribution and pressure drop in every channel in the printed circuit heat exchanger

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

This study examines the performance of printed circuit heat exchangers (PCHE) operated at high temperature subject to the influence of inlet conditions. Simulations are made with three cold plates and three hot plates with mass flow ranging from 0.469kg/h to 4.697kg/h. The inlet temperatures of the cold side and hot side are 200°C and 700°C, respectively. The size of the plate is 272×55×1.65mm with straight channel in the cold side and Z-Shape channel in the hot plate. The simulation is carried out for three cases (Case1: Vc = 5 m/s, Tc = 200 °C, Vh = 5 m/s, Th = 700 °C; Case2: Vc = 5 m/s, Tc = 200 °C, Vh = 10 m/s, Th = 700 °C; Case3: V c = 1 m/s, Tc = 200 °C, Vh = 5 m/s, T h = 700 °C). It is found that the effect of inlet velocity on the temperature performance is quite significant, and the heat transfer coefficient is related to the mass flow rate. The distribution of mass flow rate within the channel casts significant effect on the outlet temperature. The calculated results indicated the effectiveness s (Case1) is 0.72 which is much higher than those of Case2 (0.704) and Case3 (0.574).Yet the second cold plate shows the maximum temperature difference and the pressure drop in all three cases of simulation.

Original languageEnglish
Pages (from-to)393-399
Number of pages7
JournalECS Transactions
Volume57
Issue number1
DOIs
StatePublished - 1 Jan 2013

Fingerprint Dive into the research topics of 'Simulation of velocity distribution and pressure drop in every channel in the printed circuit heat exchanger'. Together they form a unique fingerprint.

Cite this