An analysis approach for entropy generation in bounded solids subject to sudden heat flux

SUNAR M., Fadlalla A. A., Yucesan G., BİÇER O.

International Journal of Exergy, cilt.37, sa.4, ss.412-427, 2022 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 4
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1504/ijex.2022.122078
  • Dergi Adı: International Journal of Exergy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.412-427
  • Anahtar Kelimeler: bounded solid, conduction, EGR, entropy generation rate, FEM, finite element method, heat flux, theoretical
  • Samsun Üniversitesi Adresli: Hayır

Özet

This work addresses the problem of entropy generation rate due to conduction for a one-dimensional bounded solid onto which a sudden heat flux is applied from one of its surfaces and the other surface is insulated. A theoretical procedure is presented using the infinite series to solve for temperature distribution with different forms of the applied heat flux. The considered cases include, but not limited to, constant, ramp and sinusoidal types of heat fluxes. The theoretical temperature results are found to be closely matching with those available in literature for one case and with those obtained by the finite element approach for all the cases. Entropy generation rate due to thermal field is presented in all the three cases with the conclusion that an energy balance is attained at some depth below the surface.