A review of performance enhancement of PCM based latent heat storage system within the context of materials, thermal stability and compatibility

Authors: KHAN, Z., Khan, Z. and Ghafoor, A.

http://eprints.bournemouth.ac.uk/23132/

http://www.sciencedirect.com/science/article/pii/S0196890416300759

Journal: Energy Conversion and Management

Volume: 115

Pages: 132-158

Publisher: Elsevier

ISSN: 0196-8904

DOI: 10.1016/j.enconman.2016.02.045

Phase change materials (PCM) with their high thermal storage density at almost isothermal conditions and their availability at wide range of phase transitions promote an effective mode of storing thermal energy. Literature survey evidently shows that paraffins and salt hydrates provide better thermal performance at competitive cost. However, the efficient utilization of latent heat storage is limited by low thermal conductivity, phase segregation, subcooling and container material compatibility with PCMs. This review paper is focused on classification of various PCMs, long term thermal stability of paraffins and salt hydrates; their compatibility with different container materials and thermal performance enhancement techniques adopted by various researchers such as influence of container shape, employment of fins and high conductivity additives, multi-PCM approach and PCM encapsulation on phase transition rates and thermal energy storage density. The conclusions obtained from critical assessment of research work carried out on latent heat storage will encourage using reliable PCM with compatible container material and an efficient geometric configuration to achieve maximum thermal utilization of PCM.

This data was imported from Scopus:

Authors: Khan, Z. and Ghafoor, A.

http://eprints.bournemouth.ac.uk/23132/

Journal: Energy Conversion and Management

Volume: 115

Pages: 132-158

ISSN: 0196-8904

DOI: 10.1016/j.enconman.2016.02.045

© 2016 Elsevier Ltd. All rights reserved. Phase change materials (PCM) with their high thermal storage density at almost isothermal conditions and their availability at wide range of phase transitions promote an effective mode of storing thermal energy. Literature survey evidently shows that paraffins and salt hydrates provide better thermal performance at competitive cost. This review paper is focused on the classification of various paraffins and salt hydrates. To acquire long term productivity of LHS system, the thermo-physical stability of both paraffins and salt hydrates; and their compatibility with various plastic and metallic container materials play a vital role. Likewise, the lower thermal conductivity of PCMs affects the thermal performance of LHS system. This article reviews the various thermo-physical performance enhancement techniques such as influence of container shape and its orientation, employment of fins and high conductivity additives, multi-PCM approach and PCM encapsulation. The performance enhancement techniques are focused to improve the phase transition rate, thermal conductivity, latent heat storage capacity and thermo-physical stability. This review provides an understanding on how to maximize thermal utilization of PCM. This understanding is underpinned by an analysis of PCM-container compatibility and geometrical configuration of the container.

This data was imported from Web of Science (Lite):

Authors: Khan, Z. and Ghafoor, A.

http://eprints.bournemouth.ac.uk/23132/

Journal: ENERGY CONVERSION AND MANAGEMENT

Volume: 115

Pages: 132-158

eISSN: 1879-2227

ISSN: 0196-8904

DOI: 10.1016/j.enconman.2016.02.045

The data on this page was last updated at 04:56 on May 20, 2019.