Abstract
Natural convection heat transfer has been a subject of intensive research during the past decades due to its wide applications such as in cooling of nuclear reactors and electronic equipments, heating and ventilation in building design. The present study is focussed with enhancement of natural convection heat transfer in a cylindrical enclosure with in-built heat source. Fluids of two different Prandtl numbers (air and liquid sodium) are studied in laminar regime. The solution of the governing equations is carried out using Fluent 4.3.16 CFD solver, which uses control volume method to discretise the governing equations. The detailed heat transfer and flow characteristics are investigated in five different chimney configurations. The use of chimney enhances the rate of heat transfer from the source. For air, any plate which has at least one opening in it can be selected to maximise the heat removal from the plate. However, for liquid sodium, the funnel chimney configuration gives the best results to maximise heat transfer rate.
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Gautam, S., Khan, M.J., Khan, A., Sharma, V., Farid, F., Sharma, A.K. (2022). Enhancement of Natural Convection Heat Transfer in Cylindrical Enclosure with Internal Heat Source. In: Natarajan, S.K., Prakash, R., Sankaranarayanasamy, K. (eds) Recent Advances in Manufacturing, Automation, Design and Energy Technologies. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-4222-7_107
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DOI: https://doi.org/10.1007/978-981-16-4222-7_107
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