New Method for Investigation of Dynamic Parameters of Thermoelectric Modules

Precise calculation of parameters of thermoelectric modules and thermoelectric devices under operating conditions by present methods is very difficult. In this study, a new method is developed to calculate all parameters of thermoelectric modules. This new method makes it possible to determine the dynamic parameters of a real thermoelectric module operated under different working regimes. Measurement of thermoemf created by an operating module is the basis of this new method. An unloaded thermoelectric module, whose dynamic output parameters are necessary in the design of a medical helmet for the cooling of brain, has been investigated using this new method. A special device has been designed and realized to be used in these investigations.

New Method for Investigation of Dynamic Parameters of Thermoelectric Modules

Precise calculation of parameters of thermoelectric modules and thermoelectric devices under operating conditions by present methods is very difficult. In this study, a new method is developed to calculate all parameters of thermoelectric modules. This new method makes it possible to determine the dynamic parameters of a real thermoelectric module operated under different working regimes. Measurement of thermoemf created by an operating module is the basis of this new method. An unloaded thermoelectric module, whose dynamic output parameters are necessary in the design of a medical helmet for the cooling of brain, has been investigated using this new method. A special device has been designed and realized to be used in these investigations.

___

  • T.C. Harman,“Special Techniques for measurement of thermoelectric properties”, J. Appl. Phys., Vol 29, pp. 1379, 1958.
  • D. Rowe, Handbook of Thermoelectrics CRC, New York, 1995.
  • M. Gao, D.M. Rowe, “A novel principle allowing rapid and accurate measurement of a dimensionless thermo- electric Şgure of merit” Measurement of Science and Technology, Vol.12, pp.1261-1265, 2001.
  • G. Sumanasekera, L. Grigorian, P. Eklund, “Low-Temperature thermoelectrical power measurement using analogue subtraction” Measurement of Science and Technology, Vol 11, pp. 273-277, 2000.
  • H.J. Goldsmid, “A simple technique for determining the Seebeck coefficient of thermoelectric materials” Journal of Physics E: ScientiŞc Instruments, Vol 19, pp. 921-922, 1986.
  • W. Waclawek, M.Zabkowska, “Apparatus for the measurement of thermoelectrical properties” Journal of Physics E: ScientiŞc Instruments, Vol 14, pp. 618-620, 1981.
  • A. Crueq, L. Degols, “A new method for the measurement of the thermoelectric power of sintered semiconduc- tors” Journal of Physics E: ScientiŞc Instruments, Vol 5, pp. 81-83, 1972.
  • R.J. Buist, “11thInternational Conference on Thermoelectric” pp. 57-60, (October 7-8, Arlington TX USA), M. Gao, D.M. Rowe, “Proc. 5thEuropean Workshop on Thermoelectrics” pp. 81-86 ( Pardubice, Czechia, September 20-21 ),1999.
  • O. Kenji, USPatent No: 5705770 USA, 1998.
  • M. Gao, D.M. Rowe.” Improved model for calculating the coefficient of performance of a Peltier module” Energy conversion and management, Vol 41, pp. 163-171, 2000.
  • X. Xuan, K. Ng, C. Yap, H. Chu, “A general model for studying effects of interface layers on thermoelectric devices performance” International Journal of Heat and Mass Transfer, Vol 45, pp. 5159–5170, 2002.
  • A. F. Loffe, Poluprovodnikovie Termoelementi, Moskov, 1960.
  • U.Kin-ichi,” Commercial Peltier Modules” CRC Handbook of Thermoelectrics ed. D. M. Rowe pp. 621-631, Y. Svetkov, Sudavie Thermoelectricitks Ahlajdayu¸siye Ustroystva, Moskov, 1972.
  • E. Pokorni, Rascot Thermoelectricitks Ahlajdayu¸siye Ustroystva, Leningrad, 1969.
  • A. Vayner, Kaskatniye Thermoelektricheskie Istochniki Holoda, Moskov. 1976. http://www.melcor.com homepage of Melcor, USA. http://www.marlow.com homepage of Marlow, USA.
  • A. Heylen, “Figure of Merit determination of Thermo-electric Modules”, Energy Conversion, Vol 15, pp. 65-70, X.C. Xuan, “Investigation of thermal contact effect on thermoelectric coolers” Energy conversion and manage- ment, Vol 44, pp. 399-410, 2003.
  • R. Ahıska , EP Patent No: 26708 Turkey , 1993.
  • M.Kapıdere, R. Ahıska, ˙I. Guler,” Microcontroller Based Thermohypotherm Medical Instrument” Biyomut National Meeting on Biomedikal Engin. Pp. 209-214, ( May 31- June 1, ˙Istanbul, Turkey ), 2002.
  • E. Maystrah, Priostanovlennaya Jizni, Moskov, 1971.