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Experimental and numerical study on thermal energy storage of polyethylene glycol/expanded graphite composite phase change material
Highlights The PEG/EG composite PCMs were prepared. Thermo physical properties of pure PEG and PEG/EG were characterized. Experiments were conducted to investigate the heat transfer performance of the LHTES. The numerical modeling was conducted to study the heat transfer device. The validity of the numerical model was evaluate.
Abstract Polyethylene glycol (PEG) is one of organic phase change materials with low thermal conductivity, which hindered the application of the PCM. In this paper, PEG/expanded graphite (EG) with the different mass fraction was prepared and the thermal properties were investigated first. And then, experiments of latent heat thermal energy storage (LHTES) with pure PEG and PEG/EG PCMs were conducted to investigate the temperature involutions at certain position in LHTES during the charging and discharging processes. Compared with the pure PEG, LHTES with PEG/EG can dramatically enhance the heat transfer rate with little latent heat loss.
Experimental and numerical study on thermal energy storage of polyethylene glycol/expanded graphite composite phase change material
Highlights The PEG/EG composite PCMs were prepared. Thermo physical properties of pure PEG and PEG/EG were characterized. Experiments were conducted to investigate the heat transfer performance of the LHTES. The numerical modeling was conducted to study the heat transfer device. The validity of the numerical model was evaluate.
Abstract Polyethylene glycol (PEG) is one of organic phase change materials with low thermal conductivity, which hindered the application of the PCM. In this paper, PEG/expanded graphite (EG) with the different mass fraction was prepared and the thermal properties were investigated first. And then, experiments of latent heat thermal energy storage (LHTES) with pure PEG and PEG/EG PCMs were conducted to investigate the temperature involutions at certain position in LHTES during the charging and discharging processes. Compared with the pure PEG, LHTES with PEG/EG can dramatically enhance the heat transfer rate with little latent heat loss.
Experimental and numerical study on thermal energy storage of polyethylene glycol/expanded graphite composite phase change material
Lv, Yajun (author) / Zhou, Weibing (author) / Jin, Weizhun (author)
Energy and Buildings ; 111 ; 242-252
2015-11-13
11 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2014
| British Library Online Contents | 2019