Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6775686 | Sustainable Cities and Society | 2018 | 42 Pages |
Abstract
In this âstudy, spiral coil tube is considered in a shell and tube heat storage unit and numerical âsimulations are performed to predict the effect of geometrical and operational parameters such as spiral coil âdiameter, tube diameter, HTF mass flow rate and HTF inlet temperature on heat transfer characteristics and thermal behavior of Paraffin âRT50 as phase change material during melting process in the shell and spiral coil tube heat âexchanger while HTF flows inside the tube and PCM fill the space between shell and tube. âSimulation results showed that spiral coil diameter plays an important role in melting process âand heat transfer procedure. By increasing spiral coil diameter from 50â¯mm to 70â¯mm, total âmelting time will reduce up to 71.4%. In contrast, tube diameter has little effect on melting âprocess. It is indicated that for larger spiral coil diameter, increasing tube diameter has a âreverse impact on reduction of total melting time.â
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Authors
R. Ahmadi, M.J. Hosseini, A.A. Ranjbar, R. Bahrampoury,