## THERMAL SCIENCE

International Scientific Journal

### Thermal Science - Online First

online first only
### Heat conduction in rectangular solids with internal heat generation

**ABSTRACT**

A representative steady-state heat conduction problem in rectangular solids with uniformly distributed heat generation has been investigated analytically. An analytical solution is provided by solving a nonhomogeneous partial differential equation. A simple and accurate model is proposed to predict the dimensionless shape factor parameter for the first time. The dimensionless shape factor is obtained in the light of the solution of Poisson equation with constant wall temperature boundary conditions. The area-mean temperature is found by integration on the rectangular cross-section. The model is very concise and nice for quick real world approximations, and it provides acceptable accuracy for engineering practice.

**KEYWORDS**

PAPER SUBMITTED: 2020-04-15

PAPER REVISED: 2020-07-24

PAPER ACCEPTED: 2020-08-24

PUBLISHED ONLINE: 2020-09-06

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