Detail publikačního výsledku

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.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2017

Vydáno

12.10.2016

ISSN

1429-2955

Periodikum

Journal of Theoretical and Applied Mechanics

Svazek

54

Číslo

4

Stát

Polská republika

Strany od

1285

Strany do

1295

Strany počet

11

Plný text v Digitální knihovně

http://hdl.handle.net/

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"
}