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     Research Journal of Applied Sciences, Engineering and Technology


Experimental Study of Thermal Energy Storage System Using Fin Tube Heat Exchanger and Commercial Phase Change Material

1Abdullah N. Olimat, 2Faisal M. Al-Ghathian and 3Ahmad S. Awad
1Departmentof Fire Safety Engineering, Prince Al-Hussein Bin Abdullah II Academy of Civil Protection, Al-Balqa` Applied University, P.O. Box 1050, Amman 11134
2Faculty of Engineering Technology, Al-Balqa` Applied University, P.O. Box 179, Tafila 66110
3Department of Mechanical Engineering, Faculty of Engineering Technology, Al-Balqa` Applied University, P.O. Box 330116, Amman 11134, Jordan
Research Journal of Applied Sciences, Engineering and Technology  2016  5:394-402
http://dx.doi.org/10.19026/rjaset.13.2957  |  © The Author(s) 2016
Received: March ‎5, ‎2016  |  Accepted: May ‎13, ‎2016  |  Published: September 05, 2016

Abstract

The current experimental study is carried out to investigate the main parameters of Heat Transfer Fluid (HTF), which affects the performance of Thermal Energy Storage (TES). In this study, commercial Phase Change Material (PCM), PlusICE H190 is used to charge the system. The phase change temperature of the used PCM is started at 170oC and completed at 190°C. Thermal energy storage is a rectangular container which consists of a fin tube heat exchanger and the charged PCM. Fin tube heat exchanger is implemented in the construction of the system to compensate the limited thermal conductivity of the selected PCM (0.512 W/m. K ). Five thermocouples K-type are inserted in the domain of the PCM to measure the variations of temperature output with time at different depths. The results show that the inlet temperature (Tinlet) = 220°C, which is close enough to the phase change temperature (190°C) of the PCM has the highest energy performance. Also the results illustrates that the phase change region of the PCM is started at 170°C and completed at 190oC with a transitional appearance takes place over a varying temperature difference of 20°C and the average value of heating rate over phase change process remains constant at 0.75°C/min at a flow rate 5.2 kg/min. The results indicates that increasing the HTF mass flow rates leads to decrease the time needed to melt the PCM and influences the melting point to become at relatively lowered value, while in the solidification mode the time decreases as the mass flow rate increases.

Keywords:

Heat Transfer Fluid (HTF), melting/solidification, PlusICE H190, Phase Change Materials (PCMs), Thermal Energy Storage (TES), temperature gradient, transitional appearance,


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Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.

ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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