Numerical Investigation of Pipe Array in a Shell and Tube Heat Exchanger Filled with PCM as a Porous Media

Document Type : full paper

Authors

• Sara Bahari
• hosein shokouhmabd
• Mohammad Nikian

Abstract

Human live depends on the production and consumption of energy. With reduction of fossile
resources, scientists in the last decades are interested for utilizing of renewables such as phase change materials (PCM). Utilizing these materials in heat exchangers cause the improvement of system performance. In the present study, a shell and tube heat exchanger filled with PCM by assumption of prous media has been
simulated. PCMs’ are inserted in the region between tubes and shell and solid to liquid phase change phenomena has been solved by the theory of prous enthalpy. It is assumed there is a local thermal unequilibruim due a considerable difference between thermophysical prporties of the heat exchanger and PCM. The validation of the proposed model has been done by the results obtained from a metal fume which filled with PCM. The effect of tube arrays in porous media in heat transfer rate and and melting of PCM. The obtained results from numerical solution show that a prous media with a little viodage reduce the thermal capacity of the latent heat storage systems

Keywords

• Incident solar irradiance
• extrateresial irradiance
• Zandjan climate

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