An easy-to-use representation of vapor chambers is developed in terms of effective anisotropic properties. This approach enables accurate simulation of the vapor chamber represented as a solid conduction block by assigning appropriate values to its effective density, specific heat, in-plane thermal conductivity, and through-plane thermal conductance. These effective properties are formulated such that the vapor chamber operation in terms of steady-state and transient thermal responses matches a full, physical simulation of phase change and energy transport in the vapor core; they are intrinsic properties that can be applied independently of the boundary conditions and heat input.
Anisotropic, heat pipe, thermal conductivity, transient, vapor chamber.
Date of this Version
K. Baraya, J.A. Weibel, and S. V. Garimella, “Effective Anisotropic Properties-Based Representation of Vapor Chambers,” IEEE Transactions on Components, Packaging and Manufacturing Technology, Vol. 11, pp. 51-56, 2021.