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Analysis of a new induction thermal converter for heating

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  • Popa, Cezar
  • Pentiuc, Radu

Abstract

The paper presents a new type of electro-thermal converter whose particular applications are used especially in heating materials or residential buildings. The converter is in fact a single-phase transformer with a massif secondary winding, calculated to work in short-circuit but in a stabilized thermal regime. The authors developed a coupled electric-magnetic-thermal numerical model that improved the calculation of power and temperature distribution in the secondary massive coil. Knowledge of local magnetic field intensity gives the possibility to evaluate local current density and volume distribution of electrical power in the material. The model can be used to predict evolution of coil temperature for different charges, secondary coil materials and for different geometrical designs. The equations used for the development of the numerical solutions are presented below, as well as some experimental results and practical applications.

Suggested Citation

  • Popa, Cezar & Pentiuc, Radu, 2012. "Analysis of a new induction thermal converter for heating," Energy, Elsevier, vol. 42(1), pages 81-93.
    • Handle: RePEc:eee:energy:v:42:y:2012:i:1:p:81-93
    DOI: 10.1016/j.energy.2011.07.046
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    References listed on IDEAS

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    1. Heiselberg, Per & Brohus, Henrik & Hesselholt, Allan & Rasmussen, Henrik & Seinre, Erkki & Thomas, Sara, 2009. "Application of sensitivity analysis in design of sustainable buildings," Renewable Energy, Elsevier, vol. 34(9), pages 2030-2036.
    2. Lund, H. & Möller, B. & Mathiesen, B.V. & Dyrelund, A., 2010. "The role of district heating in future renewable energy systems," Energy, Elsevier, vol. 35(3), pages 1381-1390.
    3. Saidur, R., 2010. "A review on electrical motors energy use and energy savings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(3), pages 877-898, April.
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    3. Darhovsky, Yegal & Mellincovsky, Martin & Baimel, Dmitry & Kuperman, Alon, 2021. "A novel contactless, feedbackless and sensorless power delivery link to electromagnetic levitation melting system residing in sealed compartment," Energy, Elsevier, vol. 231(C).
    4. El-Kharashi, Eyhab & El-Dessouki, Maher, 2014. "Coupling induction motors to improve the energy conversion process during balanced and unbalanced operation," Energy, Elsevier, vol. 65(C), pages 511-516.
    5. El-Kharashi, Eyhab & Massoud, Joseph Girgis & Al-Ahmar, M.A., 2019. "The impact of the unbalance in both the voltage and the frequency on the performance of single and cascaded induction motors," Energy, Elsevier, vol. 181(C), pages 561-575.

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