Evolution of melt path in a horizontal shell and tube latent heat storage system for concentrated solar power plants
Date
2022
Authors
Riahi, S.
Evans, M.
Liu, M.
Jacob, R.
Bruno, F.
Editors
Mobedi, M.
Hooman, K.
Tao, W.-Q.
Hooman, K.
Tao, W.-Q.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Book chapter
Citation
Source details - Title: Solid–Liquid Thermal Energy Storage: Modeling and Applications, 2022 / Mobedi, M., Hooman, K., Tao, W.-Q. (ed./s), Ch.12, pp.257-273
Statement of Responsibility
Conference Name
Abstract
The melt path evolution of a high-temperature phase change material (PCM) with a melting point of 705.8°C and the impact on thermal stress–strain distributions in a horizontal shell and tube were investigated. Considering two cases with initial temperature of 700°C and 650°C, the results of the study showed that it takes 60 seconds for a melt layer formation to occur in the first case, and 200 seconds for the second case. The small eddy cells formed in the melted PCM provide a convection heat transfer medium thereby reducing the temperature gradients and consequently thermal stresses. Moreover, the high rate of convection heat transfer at the interface between the PCM and the hot gas at the top of the shell is a driving force to drag, mix and move the liquid PCM towards the top of the shell. A thermoelastic analysis showed that the system under the imposed condition for the first case endures a maximum stress of 90.4 MPa, which is lower than a threshold of 136.3 MPa for 1% creep in 1000 hours for SS347H
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright 2022 Taylor and Francis