- Author
- Maref, W. | Cherkaoui, H. | Crausse, P. | Boisson, H.
- Title
- Heat Transfer in the Turbulent Flow Through a Conduit for Removal of Combustion Products.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Journal
- Building and Environment, Vol. 38, No. 6, 763-770, June 2003
- Report
- NRCC-46096
- Keywords
- combustion products | heat transfer | conduit | turbulent flow | velocity | boilers | computational fluid dyanmics | temperature field | turbulence | equations
- Identifiers
- smoke conduit; unsteady state; thermal and dynamic fields; French Scientific and Technical Centre for Building (CSTB)
- Abstract
- A numerical model was presented to calculate the velocity and thermal fields of turbulent flow through a conduit for removal of combustion products. This study originated in response to an industrial concern to study dynamic behaviour of a smoke conduit connected to a high efficiency gas boiler working in permanent running mode (steady state), or cyclical non-static running mode (unsteady state). The momentum and temperature fields were calculated via a finite volume CFD code using the k-å turbulence model. The validation of this calculation was conducted employing a full-scale experimentation. Comparisons of temperature fields were made, and the model was shown to give an acceptable quantitative approach for design within the framework of the coarse approximations adopted.