Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah

In modern world, use of phase change materials (PCMs) in a thermal energy storage system is an efficient way to store the energy. There are many applications of thermal energy storage system in which PCMs is used, namely, heat pumps, solar systems, spacecraft thermal applications etc. The purpose of...

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Main Authors: Jad, Uday, Shah, Abhijeet
Format: Article
Language:English
Published: Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2019
Subjects:
Online Access:https://ir.uitm.edu.my/id/eprint/36461/1/36461.pdf
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author Jad, Uday
Shah, Abhijeet
author_facet Jad, Uday
Shah, Abhijeet
author_sort Jad, Uday
collection UITM
description In modern world, use of phase change materials (PCMs) in a thermal energy storage system is an efficient way to store the energy. There are many applications of thermal energy storage system in which PCMs is used, namely, heat pumps, solar systems, spacecraft thermal applications etc. The purpose of this paper is to identify effect of geometrical changes on the melting process of PCM. Computational fluid dynamics (CFD) is used to analyze phase change process. Thermal energy storage tank consists of a vertical tube in tube geometry where outer tube consists of phase change material and inner pipe carrying hot fluid. Paraffin is used as latent heat storage material. Further, the paper describes the effect of inlet temperature of heat transfer fluid on the phase change process. Two types of geometries are used, namely cylindrical and conical shaped. Result shows that charging time is 2.56% less for conical shaped storage system rather than the same for cylindrical shaped system. The results of CFD and experimental analysis considering the parameters like flow rate and inlet temperature of heat transfer fluid are compared. The results of the numerical analysis and the experimental readings shows a good agreement between them. It is observed that as the mass flow rate increases, the effectiveness of the PCM based heat exchanger decreases.
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spelling oai:ir.uitm.edu.my:364612020-11-10T04:44:18Z https://ir.uitm.edu.my/id/eprint/36461/ Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah jmeche Jad, Uday Shah, Abhijeet TJ Mechanical engineering and machinery In modern world, use of phase change materials (PCMs) in a thermal energy storage system is an efficient way to store the energy. There are many applications of thermal energy storage system in which PCMs is used, namely, heat pumps, solar systems, spacecraft thermal applications etc. The purpose of this paper is to identify effect of geometrical changes on the melting process of PCM. Computational fluid dynamics (CFD) is used to analyze phase change process. Thermal energy storage tank consists of a vertical tube in tube geometry where outer tube consists of phase change material and inner pipe carrying hot fluid. Paraffin is used as latent heat storage material. Further, the paper describes the effect of inlet temperature of heat transfer fluid on the phase change process. Two types of geometries are used, namely cylindrical and conical shaped. Result shows that charging time is 2.56% less for conical shaped storage system rather than the same for cylindrical shaped system. The results of CFD and experimental analysis considering the parameters like flow rate and inlet temperature of heat transfer fluid are compared. The results of the numerical analysis and the experimental readings shows a good agreement between them. It is observed that as the mass flow rate increases, the effectiveness of the PCM based heat exchanger decreases. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2019 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/36461/1/36461.pdf Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah. (2019) Journal of Mechanical Engineering (JMechE) <https://ir.uitm.edu.my/view/publication/Journal_of_Mechanical_Engineering_=28JMechE=29/>, 16 (3). pp. 51-65. ISSN 1823-5514 ; 2550-164X https://jmeche.uitm.edu.my/
spellingShingle TJ Mechanical engineering and machinery
Jad, Uday
Shah, Abhijeet
Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah
title Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah
title_full Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah
title_fullStr Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah
title_full_unstemmed Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah
title_short Numerical and experimental investigation of thermal energy storage in a conical finned tube in PCM storage unit / Uday Jad and Abhijeet Shah
title_sort numerical and experimental investigation of thermal energy storage in a conical finned tube in pcm storage unit uday jad and abhijeet shah
topic TJ Mechanical engineering and machinery
url https://ir.uitm.edu.my/id/eprint/36461/1/36461.pdf
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