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Analysis of temperature distribution in a pipe with inner mineral deposit

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The paper presents the results of calculations related to determination of temperature distributions in a steel pipe of a heat exchanger taking into account inner mineral deposits. Calculations have been carried out for silicate-based scale being characterized by a low heat transfer coefficient. Deposits of the lowest values of heat conduction coefficient are particularly impactful on the strength of thermally loaded elements. In the analysis the location of the thermocouple and the imperfection of its installation were taken into account. The paper presents the influence of determination accuracy of the heat flux on the pipe external wall on temperature distribution. The influence of the heat flux disturbance value on the thickness of deposit has also been analyzed.
Rocznik
Strony
37--49
Opis fizyczny
Bibliogr. 10 poz., il.
Twórcy
  • Poznan University of Technology, Chair of Thermal Engineering, Piotrowo 3, 60-965 Poznań, Poland
  • Poznan University of Technology, Chair of Thermal Engineering, Piotrowo 3, 60-965 Poznań, Poland
  • Poznan University of Technology, Chair of Thermal Engineering, Piotrowo 3, 60-965 Poznań, Poland
Bibliografia
  • [1] BJÖRCK A., DAHLQUIST G.: Numerical Methods. PWN, Warsaw 1983.
  • [2] CIAŁKOWSKI M.: Selected Methods and Algorithms for Solving the Inverse Problem of Heat Conduction Equation. Wydawnictwo Politechniki Poznańskiej, Poznan 1996.
  • [3] DUDA P., TALER J.: A new method for identification of thermal boundary conditions in water-wall tubes of boiler furnances. Int. J. Heat Mass Tran. 52(2009) 1517-1524.
  • [4] HELMUT B., JOACHIM P.M.: Scales in evaporators. Int. Sugar J. 105(2003), 1258, 475-480.
  • [5] KLEVA S.: Boiler inspection, maintenance safety. HPAC Heating, Piping, Air Conditioning Eng. 81(2009), 4, 28-31.
  • [6] KOSMA Z.: Numerical Methods for Engineering Applications. Radom UT, Radom 2007.
  • [7] KRAJEWSKA M., CIAŁKOWSKI M., BARTOSZEWICZ J.: The analysis of influence of boiler scale on the distribution of temperature in the pipe material. Thermodynamics in Science and Technology, Proc. 1-st Int. Congress on Thermodynamics Poznan, Poland 2011, 69-78.
  • [8] TALER D., SURY A.: Inverse heat transfer problem in digital temperature control in plate fin and tube heat exchangers. Arch. Thermodyn. 32(2011), 4, 17-31.
  • [9] TALER J., DUDA P., WĘGLOWSKI B., ZIMA W., GRĄDZIEL S., SOBOTA T., TALER D.: Identification of local heat flux to membrane water-walls in steam boilers. Fuel 88(2009), 305-311.
  • [10] THEODOROU J.: How to prevent steam-boiler failure. HPAC Heating, Piping, Air-Conditioning Eng. 80(2008), 8, 34-39.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f63d7e82-5317-4a37-8bbc-b2bf5febf5e7
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