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

Author(s) : SHEN L. M., XIAO F., CHEN H. X., et al.

Type of article: Article, IJR article

Summary

This paper presents a mathematical model and its solution algorithm for analyzing the transient supercooling effect of voltage pulse on a thermoelectric 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 Tmts and 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.

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Pages: 1156-1165

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Details

  • Original title: Numerical and experimental analysis of transient supercooling effect of voltage pulse on thermoelectric element.
  • Record ID : 30004218
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 35 - n. 4
  • Publication date: 2012/06

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