Modelling conical rock-bed solar thermal storage tank
Karim, Azharul & Amin, Zakaria Mohd (2015) Modelling conical rock-bed solar thermal storage tank. In Sayigh, Ali (Ed.) Renewable Energy in the Service of Mankind Vol II: Selected Topics from the World Renewable Energy Congress WREC 2014. Spriger, Cham, pp. 893-902.
An important application of solar thermal storage is for power generation or process heating. Low-temperature thermal storage in a packed rock bed is considered the best option for thermal storage for solar drying applications. In this chapter, mathematical formulations for conical have been developed. The model equations are solved numerically for charging/discharging cycles utilizing MATLAB. Results were compared with rock-bed storage with standard straight tank. From the simulated results, the temperature distribution was found to be more uniform in the truncated conical rock-bed storage. Also, the pressure drop over a long period of time in the conical thermal storage was as low as 25 Pa. Hence, the amount of power required from a centrifugal fan would be significantly lower. The flow of air inside the tank is simulated in SolidWorks software. From flow simulation, 3D modelling of flow is obtained to capture the actual scenario inside the tank.
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|Item Type:||Book Chapter|
|Keywords:||Solar energy, Rock bed, Conical storage tank|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering|
|Deposited On:||13 Apr 2016 23:39|
|Last Modified:||16 Sep 2016 02:54|
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