Publication detail

Numerical and experimental investigation of a PCM-based thermal storage unit for solar air systems

CHARVÁT, P. KLIMEŠ, L. OSTRÝ, M.

Original Title

Numerical and experimental investigation of a PCM-based thermal storage unit for solar air systems

English Title

Numerical and experimental investigation of a PCM-based thermal storage unit for solar air systems

Type

journal article in Web of Science

Language

en

Original Abstract

A general problem of most solar thermal systems is the need for thermal storage in order to balance supply and demand of heat over a certain period of time. A possibility to employ latent heat of fusion in phase change materials (PCMs) for thermal energy storage in air-based solar thermal systems was investigated using laboratory experiments and numerical simulations. A heat storage unit containing 100 aluminium panels filled with a paraffin-based PCM was used in the investigations. The experiments were carried out in a lab environment with an electric air heater as a heat source. A numerical model of the unit was developed and implemented as a type in the TRNSYS 17 simulation tool. The results of the simulations with the developed model show a good agreement with experimental results. Subsequently, the model was used for a parametric study analysing the influence of certain parameters. The performed investigations showed a potential of the use of latent heat thermal storage in air-based thermal systems with a narrow temperature operation range.

English abstract

A general problem of most solar thermal systems is the need for thermal storage in order to balance supply and demand of heat over a certain period of time. A possibility to employ latent heat of fusion in phase change materials (PCMs) for thermal energy storage in air-based solar thermal systems was investigated using laboratory experiments and numerical simulations. A heat storage unit containing 100 aluminium panels filled with a paraffin-based PCM was used in the investigations. The experiments were carried out in a lab environment with an electric air heater as a heat source. A numerical model of the unit was developed and implemented as a type in the TRNSYS 17 simulation tool. The results of the simulations with the developed model show a good agreement with experimental results. Subsequently, the model was used for a parametric study analysing the influence of certain parameters. The performed investigations showed a potential of the use of latent heat thermal storage in air-based thermal systems with a narrow temperature operation range.

Keywords

thermal storage, heat storage unit, latent heat, phase change materials, solar air systems

RIV year

2014

Released

06.01.2014

Publisher

Elsevier

Location

Švýcarská konfederace

Pages from

488

Pages to

497

Pages count

10

Documents

BibTex


@article{BUT101888,
  author="Pavel {Charvát} and Lubomír {Klimeš} and Milan {Ostrý}",
  title="Numerical and experimental investigation of a PCM-based thermal storage unit for solar air systems",
  annote="A general problem of most solar thermal systems is the need for thermal storage in order to balance supply and demand of heat over a certain period of time. A possibility to employ latent heat of fusion in phase change materials (PCMs) for thermal energy storage in air-based solar thermal systems was investigated using laboratory experiments and numerical simulations. A heat storage unit containing 100 aluminium panels filled with a paraffin-based PCM was used in the investigations. The experiments were carried out in a lab environment with an electric air heater as a heat source. A numerical model of the unit was developed and implemented as a type in the TRNSYS 17 simulation tool. The results of the simulations with the developed model show a good agreement with experimental results. Subsequently, the model was used for a parametric study analysing the influence of certain parameters. The performed investigations showed a potential of the use of latent heat thermal storage in air-based thermal systems with a narrow temperature operation range.",
  address="Elsevier",
  chapter="101888",
  doi="10.1016/j.enbuild.2013.10.011",
  institution="Elsevier",
  number="1",
  volume="68A",
  year="2014",
  month="january",
  pages="488--497",
  publisher="Elsevier",
  type="journal article in Web of Science"
}