Faz Değiştirme ile Isı Depolamada Kullanılan Parafin-Grafit, Parafin- Kanatçık ve Saf Parafinli Yapıların Performans Analizi

Date

2017-9-15

Author

Azarifar, Mohammad
Sömek, S. Kazım
Dönmezer, Nazlı

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Usage of Phase Change Materials (PCM) for storage of thermal energy is one of the most efficient methods to store thermal energy. The commercial paraffin, with a wide range of melting and solidification temperatures as well as moderate thermal storage densities, has been one of the most studied PCMs for thermal energy storage. Although the thermal storage capacity of paraffin PCMs are high, their low thermal conductivity limits the thermal charging/discharging rates considerably. The thermal conductivity of paraffin is enhanced by finned and paraffin-graphite structures. In this study, pure paraffin and thermally enhanced paraffin-graphite and paraffin-fin two-dimensional structures during thermal discharge are modeled. After modeling their thermal responses are compared with each other. The transient temperature distribution, total energy discharged and the rate of phase change are used as indicators in this comparison. The results show, considering both the thermal discharge rate and the storage capacities, that the thermal performance of paraffin-fin structures are superior to paraffin-graphite and the pure-paraffin structures.

Subject Keywords

Paraffin, Graphite, Metal fin, Phase change material (PCM), Parafin, Grafit, Metal kanatçık, Faz değiştiren madde (FDM)

URI

https://dergipark.org.tr/tr/pub/cukurovaummfd/issue/32171/357255
https://hdl.handle.net/11511/115009

Collections

Department of Mechanical Engineering, Article