Numerical and experimental analysis of transient supercooling effect of voltage pulse on thermoelectric element

L. M. Shen, Fu Xiao, H. X. Chen, Shengwei Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

39 Citations (Scopus)

Abstract

This paper presents a mathematical model and its solution algorithm for analyzing the transient supercooling effect of voltage pulse on a thermoelectric (TE) element. Realistic boundary conditions, including the hot-end convection heat transfer coefficient (h) and cold-end cooling load, are considered in solving the model. The numerical simulation results show that the transient supercooling occurs when the steady input voltage experiences a step change. However, the minimum supercooling temperature (Tmts) cannot approach absolute zero as reported in previous research due to the co-existence of Joule heat and Peltier effect. There is a cost-effective h to achieve Tmtsand maximum hold time of the supercooling temperature. However, the cold-end cooling load only affects Tmts. Experiments are conducted to test the transient supercooling effect of voltage pulse. The trends of the cold-end temperature responding to voltage pulses obtained in numerical simulation and experiment tests match well.
Original languageEnglish
Pages (from-to)1156-1165
Number of pages10
JournalInternational Journal of Refrigeration
Volume35
Issue number4
DOIs
Publication statusPublished - 1 Jun 2012

Keywords

  • Convection heat transfer coefficient
  • Cooling load
  • Supercooling
  • Thermoelectric element
  • Voltage pulse

ASJC Scopus subject areas

  • Mechanical Engineering
  • Building and Construction

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