On the Heat Flux Vector and Thermal Conductivity of Slags: A Brief Review

Mehrdad Massoudi, Jeongho Kim and Ping Wang
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Mehrdad Massoudi: U.S. Department of Energy (DOE), National Energy Technology Laboratory (NETL), 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236, USA
Jeongho Kim: Department of Mechanical Engineering, Kyung Hee University, Yong-in, Kyunggi-do 446-701, Korea
Ping Wang: U.S. Department of Energy (DOE), National Energy Technology Laboratory (NETL), 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236, USA

Energies, 2016, vol. 9, issue 1, 1-23

Abstract: The viscosity and the thermal conductivity of slag are among two of the most important material properties that need to be studied. In this paper we review the existing theoretical and experimental correlations for the thermal conductivity of slag. However, since, in general, slag behaves as a non-linear fluid, it is the heat flux vector which must be studied. Both explicit and implicit approaches are discussed and suggestions about the form of the heat flux vector and the thermal conductivity and their dependence on shear rate, porosity, deformation, etc. are provided. The discussion of the constitutive modeling of the heat flux vector for slag is from a theoretical perspective.

Keywords: thermal conductivity; heat conduction; slag; gasification; non-Newtonian fluids; constitutive relations; coal (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (1)

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