Publication detail

A PCM-water heat exchanger with polymeric hollow fibres for latent heat thermal energy storage: A parametric study of discharging stage

HEJČÍK, J. CHARVÁT, P. KLIMEŠ, L. ASTROUSKI, I.

Original Title

A PCM-water heat exchanger with polymeric hollow fibres for latent heat thermal energy storage: A parametric study of discharging stage

Type

journal article in Web of Science

Language

English

Original Abstract

The paper presents a theoretical parametric study into latent heat thermal energy storage (LHTES) employing polymeric hollow fibres embedded in a phase change material (PCM). The polymeric hollow fibres of five inner diameters between 0.5 mm and 1.5 mm are considered in the study. The effectiveness-NTU method is employed to calculate the thermal performance of a theoretical LHTES unit of the shell-and-tube design. The results indicate that the hollow fibres embedded in a PCM can mitigate the drawback of low thermal conductivity of phase change materials. For the same packing fraction, the total heat transfer rates between the heat transfer fluid and the PCM increase with the decreasing diameter of the hollow fibres. This increase in the heat transfer rate and thus the efficiency of the heat exchange to some extent compensate for the energy consumption of the pump that also increases with the decreasing fibre diameter.

Keywords

phase change material; latent heat thermal energy storage; heat exchanger

Authors

HEJČÍK, J.; CHARVÁT, P.; KLIMEŠ, L.; ASTROUSKI, I.

Released

12. 10. 2016

ISBN

1429-2955

Periodical

Journal of Theoretical and Applied Mechanics

Year of study

54

Number

4

State

Republic of Poland

Pages from

1285

Pages to

1295

Pages count

11

BibTex

@article{BUT128840,
  author="Jiří {Hejčík} and Pavel {Charvát} and Lubomír {Klimeš} and Ilja {Astrouski}",
  title="A PCM-water heat exchanger with polymeric hollow fibres for latent heat thermal energy storage: A parametric study of discharging stage",
  journal="Journal of Theoretical and Applied Mechanics",
  year="2016",
  volume="54",
  number="4",
  pages="1285--1295",
  doi="10.15632/jtam-pl.54.4.1285",
  issn="1429-2955"
}