Floor Heating System (Uniform) of a Room CFD Simulation, ANSYS Fluent Training

The present problem simulates the heat transfer from a uniform floor heating system into a room by ANSYS Fluent software. This heating system is built into the room's floor, which acts as a heat source. It is assumed that this heating system has a constant thermal flux of 166.6 W/m2.

The sidewalls and ceiling have a thickness of 0.2 m of wood, which has convection heat transfer with the outside; Thus, the ambient air temperature is assumed to be 280 K, and the convection heat transfer coefficient is considered to be 10 W/m2.K.

Floor Heating System Methodology

The gravity is applied to the model, and the air inside the room is considered to be an ideal gas. The present 3-D model is drawn using the Design Modeler software.

The current model consists of a room in the shape of a rectangular cube with dimensions of 4 m * 3 m * 3.3 m. The mesh is done using ANSYS Meshing software, and the mesh type is Structured. The element number is 93,280.

Floor Heating System Conclusion

The purpose of this study is to investigate the heat transfer rate through the floor heating system to the interior of the room using natural convection and buoyancy effect. The velocity contour shows the buoyancy effect on the airflow inside the room.

Also, by the temperature distribution contour, we can easily see the maximum temperature near the floor and the increased temperature in the room due to the uniform underfloor heating system.