Heat Transfer Analysis During Heat Recovery in Cylindrical Latent Thermal Storage Unit

Heat Transfer Analysis During Heat Recovery in Cylindrical Latent Thermal Storage Unit

Mohamed Teggar El Hacenc Mezaache

Laboratoire de Mécanique, Université Amar Telidji de Laghouat, B.P. 37G, Laghouat 03000, Algeria

Laboratoire de Recherche sur la Physico-Chimie des Surfaces et Interfaces, Université de Skikda, Algeria

Page: 
191-196
|
DOI: 
https://doi.org/10.18280/ijht.320127
Received: 
N/A
| |
Accepted: 
N/A
| | Citation

OPEN ACCESS

Abstract: 

In the present paper the heat transfer in a cylindrical latent heat exchanger has been analysed. Theoretical study was conducted to assess how the heat transfer is affected by the dimensionless parameters. Phase change inside the heat exchanger has been formulated by using a conduction model. An enthalpy method with finite control volumeapproach was used. This model has been validated by comparison with available models in literature. The influence of Biot number has been examined especially on the temperature distribution and the surface heat flux. Numerical results showed that larger Biot number leads to higher heat exchange rate, but at the beginning of the process this effect is reversed. The Biot number has no influence on the temperature distribution in the solidified PCM near the center of the cylinder. The significant influence is observed only for larger radii.

Keywords: 

enthalpy method, heat storage, latcnt heat, PCM

1. Introduction
2. Physical Situation
3. Numerical Procedure
4. Results
5. Conclusion
6. Nomenclature
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