Figure 1 : the storage capacity of PCM can be 4
times higher than that of water – a potentially more compact storage size
Abstract
PCM holds interesting storage capacity than that of
water. However, dealing with the charging/discharging power is a challenge
since heat transfer between HTF and PCM limits its application. Our works aims enhancing heat
transfer while preventing very high pressure losses in the HTF
side. Process Intensification principles are used: i)
encapsulation and ii) adding heat transfer fins.
Simulation study
Using ANSYS Fluent, we simulate the optimal capsule configuration
for a better heat transfer and lowest pressure loss for the HTF
(Heat Transfer Fluid).
Figure 2 : encapsulation of PCM in the developpement
of thermal battery – CFD study of the HTF flow
Experiments
In 2017,
a group of 4 students conducted experimental study on the use of paraffin (PCM at Tfusion of 27 °C).
Figure 3 : use of PCM in the developpement of
thermal battery – structure of heat transfer fins
Figure 4 : use of PCM in the developpement of
thermal battery -experiments in LIED Univ. Paris 7
Figure 5 : encapsulation of PCM in the
developpement of thermal battery -experiments in LIED Univ. Paris 7
Publications
[1] Xiaofeng Guo, Alain Pascal Goumba,
Process Intensification principles applied to Thermal Energy Storage systems -
a brief review, Frontiers in Energy Research, 20 March 2018,
doi:10.3389/fenrg.2018.00017, https://www.frontiersin.org/articles/10.3389/fenrg.2018.00017
[2] Xiaofeng GUO, Alain P. GOUMBA,
François ROCARIES, Tarik BOUROUINA,
Dong ZHAO, Jun ZHAO, Shuai DENG, Process Intensification
technologies applied to Thermal Energy Storage – Principles, successful
applications and perspectives, SDH2015, 3rd International Conference
on Solar District Heating, 17-18 June 2015, Toulouse, FRANCE
[3] MENG Feng, AN Qingsong, GUO Xiaofeng, ZHAO Jun, DENG Shuai, ZHAO Dong, A review of process intensification
technology in thermal energy storage, Chemical Industry and Engineering
Progress, 35(5), 1273-1282, 2016.05 (Chinese)
Grants
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EFFICACITY
External links