I am designing solar chimney for enhancement of natural ventilation...... i m using autodesk cfd simulation software for this purpose .but I am confused about boundary conditions . Please help me in applying boundary conditions
In the solar chimney the critical boundary condition is the thermal condiction, and the function of the temperature with the radial dimension. I will look for some articles related with. In Spain there was a solar chimeney in service several years.
The following iiterature may be useful for your research
The Solar Chimney Power Plant System (SCPPS) is a simple solar thermal power plant that is capable of converting solar energy into thermal energy in the solar collector. In the second stage, the generated thermal energy is converted into
kinetic energy in the chimney and ultimately into electric energy using a combination of a wind turbine and a generator. This study is to conduct a more detailednumerical analysis of solar chimney power plant system with a curved junction. This paper summarizes a numericalstudy flow in a solar chimney with a curved junction. The fluid is the air (Pr=0.702), and considered as a Newtonian
and incompressible fluid. The governing equations are taken to be in the vorticity‐stream function formulation in hyperbolic coordinates by using the Boussinesq
approximation. For heating conditions, an isothermal walls of the collector has been supposed. Solution of the defined equations has been done with numerical control volume method. Additionally, the effect of the system geometry (the
curved junction) on the heat transfer phenomenon in the solar chimney has been examined. Results are related to the temperature distribution and the velocity field in the chimney and in the collector
Ref:Numerical Analysis of Flows in a Solar Chimney Power Plant with a Curved Junction
Tahar Tayebi*1, Mahfoud Djezzar2
International Journal of Energy Science (IJES) Volume 3 Issue 4, August 2013
www.ijesci.org/Download.aspx?ID=6180
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