Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storage
Solid-liquid phase change is used to accumulate and release cold in latent heat thermal energy storage (LHTES) in order to reduce energy consumption of air cooling system in buildings. The storing capacity of the LHTES depends greatly on the exterior air temperatures during the summer nights. One ap...
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Online Access: | https://doi.org/10.1051/e3sconf/20183201017 |
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doaj-ad39b3260c6947b8ad7738cd1152c4862021-02-02T00:27:41ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01320101710.1051/e3sconf/20183201017e3sconf_eenviro2018_01017Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storagePop Octavian G.Fechete Tutunaru LucianBode FlorinBalan Mugur C.Solid-liquid phase change is used to accumulate and release cold in latent heat thermal energy storage (LHTES) in order to reduce energy consumption of air cooling system in buildings. The storing capacity of the LHTES depends greatly on the exterior air temperatures during the summer nights. One approach in intensifying heat transfer is by increasing the air’s velocity. A LHTES was designed to be integrated in the air cooling system of a building located in Bucharest, during the month of July. This study presents a numerical investigation concerning the impact of air inlet temperatures and air velocity on the formation of solid PCM, on the cold storing capacity and energy consumption of the LHTES. The peak amount of accumulated cold is reached at different air velocities depending on air inlet temperature. For inlet temperatures of 14°C and 15°C, an increase of air velocity above 50% will not lead to higher amounts of cold being stored. For Bucharest during the hottest night of the year, a 100 % increase in air velocity will result in 5.02% more cold being stored, at an increase in electrical energy consumption of 25.30%, when compared to the reference values.https://doi.org/10.1051/e3sconf/20183201017 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pop Octavian G. Fechete Tutunaru Lucian Bode Florin Balan Mugur C. |
spellingShingle |
Pop Octavian G. Fechete Tutunaru Lucian Bode Florin Balan Mugur C. Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storage E3S Web of Conferences |
author_facet |
Pop Octavian G. Fechete Tutunaru Lucian Bode Florin Balan Mugur C. |
author_sort |
Pop Octavian G. |
title |
Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storage |
title_short |
Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storage |
title_full |
Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storage |
title_fullStr |
Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storage |
title_full_unstemmed |
Preliminary investigation of thermal behaviour of PCM based latent heat thermal energy storage |
title_sort |
preliminary investigation of thermal behaviour of pcm based latent heat thermal energy storage |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2018-01-01 |
description |
Solid-liquid phase change is used to accumulate and release cold in latent heat thermal energy storage (LHTES) in order to reduce energy consumption of air cooling system in buildings. The storing capacity of the LHTES depends greatly on the exterior air temperatures during the summer nights. One approach in intensifying heat transfer is by increasing the air’s velocity. A LHTES was designed to be integrated in the air cooling system of a building located in Bucharest, during the month of July. This study presents a numerical investigation concerning the impact of air inlet temperatures and air velocity on the formation of solid PCM, on the cold storing capacity and energy consumption of the LHTES. The peak amount of accumulated cold is reached at different air velocities depending on air inlet temperature. For inlet temperatures of 14°C and 15°C, an increase of air velocity above 50% will not lead to higher amounts of cold being stored. For Bucharest during the hottest night of the year, a 100 % increase in air velocity will result in 5.02% more cold being stored, at an increase in electrical energy consumption of 25.30%, when compared to the reference values. |
url |
https://doi.org/10.1051/e3sconf/20183201017 |
work_keys_str_mv |
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