Heat Transfer Properties of a Latent Thermal Storage Unit with Flat Microheat Pipe Arrays

J. Liu; Y. H. Diao; Y. H. Zhao; F. F. Li; T. T. Zhu

doi:10.1061/(ASCE)EY.1943-7897.0000481

Heat Transfer Properties of a Latent Thermal Storage Unit with Flat Microheat Pipe Arrays

J. Liu, Y. H. Diao^*, Y. H. Zhao, F. F. Li, T. T. Zhu

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

4 Citations (Scopus)

Abstract

A thermal storage unit (TSU) with flat microheat pipe arrays (FMHPAs) as heat transfer core is experimentally investigated in this study. A comprehensive evaluation parameter of the TSU defined as thermal power intensity is proposed. The effects of the length proportion of the air side and the phase-change material (PCM) side on the heat transfer properties of TSU are also examined. Phase-change behavior of the PCM, heat transfer characteristics, and thermal resistance distribution are analyzed and discussed. Results show that the FMHPAs greatly enhanced the heat transfer rate between the air and the PCM. The thermal resistance of the air side is nearly three times greater than that of the PCM side. Keeping the length of the storage section 480 mm long and varying the length of the heating and cooling sections from 130 to 160 mm and 190 mm, the best performance was obtained for the length of 160 mm.

Original language	English
Article number	04017048
Journal	Journal of Energy Engineering
Volume	143
Issue number	5
DOIs	https://doi.org/10.1061/(ASCE)EY.1943-7897.0000481
Publication status	Published - 1 Oct 2017
Externally published	Yes

Keywords

Flat microheat pipe arrays
Heat transfer enhancement
Phase change
Thermal storage unit
n/a OA procedure

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10.1061/(ASCE)EY.1943-7897.0000481

Cite this

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title = "Heat Transfer Properties of a Latent Thermal Storage Unit with Flat Microheat Pipe Arrays",

abstract = "A thermal storage unit (TSU) with flat microheat pipe arrays (FMHPAs) as heat transfer core is experimentally investigated in this study. A comprehensive evaluation parameter of the TSU defined as thermal power intensity is proposed. The effects of the length proportion of the air side and the phase-change material (PCM) side on the heat transfer properties of TSU are also examined. Phase-change behavior of the PCM, heat transfer characteristics, and thermal resistance distribution are analyzed and discussed. Results show that the FMHPAs greatly enhanced the heat transfer rate between the air and the PCM. The thermal resistance of the air side is nearly three times greater than that of the PCM side. Keeping the length of the storage section 480 mm long and varying the length of the heating and cooling sections from 130 to 160 mm and 190 mm, the best performance was obtained for the length of 160 mm.",

keywords = "Flat microheat pipe arrays, Heat transfer enhancement, Phase change, Thermal storage unit, n/a OA procedure",

author = "J. Liu and Diao, {Y. H.} and Zhao, {Y. H.} and Li, {F. F.} and Zhu, {T. T.}",

note = "Publisher Copyright: {\textcopyright} 2017 American Society of Civil Engineers.",

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doi = "10.1061/(ASCE)EY.1943-7897.0000481",

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AU - Liu, J.

AU - Diao, Y. H.

AU - Zhao, Y. H.

AU - Li, F. F.

AU - Zhu, T. T.

PY - 2017/10/1

Y1 - 2017/10/1

N2 - A thermal storage unit (TSU) with flat microheat pipe arrays (FMHPAs) as heat transfer core is experimentally investigated in this study. A comprehensive evaluation parameter of the TSU defined as thermal power intensity is proposed. The effects of the length proportion of the air side and the phase-change material (PCM) side on the heat transfer properties of TSU are also examined. Phase-change behavior of the PCM, heat transfer characteristics, and thermal resistance distribution are analyzed and discussed. Results show that the FMHPAs greatly enhanced the heat transfer rate between the air and the PCM. The thermal resistance of the air side is nearly three times greater than that of the PCM side. Keeping the length of the storage section 480 mm long and varying the length of the heating and cooling sections from 130 to 160 mm and 190 mm, the best performance was obtained for the length of 160 mm.

AB - A thermal storage unit (TSU) with flat microheat pipe arrays (FMHPAs) as heat transfer core is experimentally investigated in this study. A comprehensive evaluation parameter of the TSU defined as thermal power intensity is proposed. The effects of the length proportion of the air side and the phase-change material (PCM) side on the heat transfer properties of TSU are also examined. Phase-change behavior of the PCM, heat transfer characteristics, and thermal resistance distribution are analyzed and discussed. Results show that the FMHPAs greatly enhanced the heat transfer rate between the air and the PCM. The thermal resistance of the air side is nearly three times greater than that of the PCM side. Keeping the length of the storage section 480 mm long and varying the length of the heating and cooling sections from 130 to 160 mm and 190 mm, the best performance was obtained for the length of 160 mm.

KW - Flat microheat pipe arrays

KW - Heat transfer enhancement

KW - Phase change

KW - Thermal storage unit

KW - n/a OA procedure

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DO - 10.1061/(ASCE)EY.1943-7897.0000481

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Heat Transfer Properties of a Latent Thermal Storage Unit with Flat Microheat Pipe Arrays

Abstract

Keywords

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