Heater Applied for a Room HVAC, ANSYS Fluent CFD Simulation Training

The present problem simulates heat transfer by a radiator inside a room using ANSYS Fluent software. In fact, the heater is connected to one of the sidewalls of the room, which acts as a heat source, and its body has a constant thermal flux equal to 1886.792 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 coefficient is assumed to be 10 W/m2K.

The purpose of this study is to investigate the heat transfer rate from the heater to the interior of the room using the natural convection and buoyancy effect.

Therefore, the gravity force is applied to the model. We carry out the present 3-D model using the SpaceClaim software. The meshing of the room and the heater is done using ANSYS Meshing software and the mesh type is structured. The element number is 87865.

Methodology

The energy model is activated to analyze heat transfer.

Conclusion

At the end of the solution process, the velocity, temperature, pressure contours, pathlines, and velocity vectors all two-dimensional and three-dimensional, are obtained.

As can be seen from the contours, the presence of the radiator was able to increase the temperature in the room to some extent. This increase in temperature and the resulting increase in velocity is more pronounced near the walls and especially near the radiator installation site.