Effects of the wall properties on the cooling efficiency in a thermosyphon containing pcm suspensions

Ching Jenq Ho, Shih Ming Lin, Chi Ming Lai

Research output: Contribution to journalArticlepeer-review

Abstract

This study explores the effects of pipe wall properties (thermal conductivity k and wall thickness tw) on the heat transfer performance of a rectangular thermosyphon with a phase change material (PCM) suspension and a geometric configuration (aspect ratio = 1; dimensionless heating section length = 0.8; dimensionless relative elevation between the cooling and the heating sections = 2) that ensures the optimum heat transfer efficiency in the cooling section. The following parameter ranges are studied: the dimensionless loop wall thickness (0 to 0.5), wall-to-fluid thermal conductivity ratio (0.1 to 100), modified Rayleigh number (1010 to 1011), and volumetric fraction of PCM particles (0 to 10%). The results show that appropriate selection of k and tw can lead to improved heat transfer effectiveness in the cooling section of the PCM suspension-containing rectangular thermosyphon.

Original languageEnglish
Article number572
JournalEnergies
Volume14
Issue number3
DOIs
Publication statusPublished - 2021 Feb 1

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Effects of the wall properties on the cooling efficiency in a thermosyphon containing pcm suspensions'. Together they form a unique fingerprint.

Cite this