Heat Transfer Enhancement for PCM Thermal Energy Storage in Triplex Tube Heat Exchanger
| Autor: | Sohif Mat, Abdulrahman Th Mohammad, Yusof Sulaiman, Abduljalil A. Al-Abidi, Kamaruzzaman Sopian |
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| Rok vydání: | 2015 |
| Předmět: |
Fluid Flow and Transfer Processes
Natural convection Materials science 020209 energy Mechanical Engineering Heat transfer enhancement Thermal resistance Thermodynamics 02 engineering and technology Condensed Matter Physics Thermal diffusivity Thermal energy storage Thermal transmittance Heat transfer Heat exchanger 0202 electrical engineering electronic engineering information engineering Composite material |
| Zdroj: | Heat Transfer Engineering. 37:705-712 |
| ISSN: | 1521-0537 0145-7632 |
| DOI: | 10.1080/01457632.2015.1067090 |
| Popis: | Thermal energy storage is critical for reducing the discrepancy between energy supply and energy demand, as well as for improving the efficiency of solar thermal energy systems. Among the different types of thermal energy storage, phase-change materials (PCM) thermal energy storage has gained significant attention recently because of its high energy density per unit mass/volume at nearly constant temperature. This study experimentally investigates the using of a triplex tube heat exchanger (TTHX) with PCM in the middle tube as the thermal energy storage to power a liquid desiccant air-conditioning system. Four longitudinal fins were welded to each of the inner and middle tubes as a heat transfer enhancement in the TTHX to improve the thermal performance of the thermal energy storage. The average temperature of the PCM during the melting process in the TTHX with and without fins was compared. The PCM temperature gradients in the angular direction were analyzed to study the effect of the natural convection ... |
| Databáze: | OpenAIRE |
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