Analysis of the flow structure and heat transfer in a vertical mantle heat exchanger

Søren Knudsen; GL Morrison; M Behnia; Simon Furbo

doi:10.1016/j.solener.2004.08.019

Analysis of the flow structure and heat transfer in a vertical mantle heat exchanger

Søren Knudsen, GL Morrison, M Behnia, Simon Furbo

University of New South Wales

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

The flow structure inside the inner tank and inside the mantle of a vertical mantle heat exchanger was investigated using a full-scale tank designed to facilitate flow visualisation. The flow structure and velocities in the inner tank and in the mantle were measured using a Particle Image Velocimetry (PIV) system. A Computational Fluid Dynamics (CFD) model of the vertical mantle heat exchanger was also developed for a detailed evaluation of the heat flux at the mantle wall and at the tank wall. The flow structure was evaluated for both high and low temperature incoming flows and for both initially mixed and initially stratified inner tank and mantle. The analysis of the heat transfer showed that the flow in the mantle near the inlet is mixed convection flow and that the heat transfer is dependent on the mantle inlet temperature relative to the core tank temperature at the mantle level. (C) 2004 Elsevier Ltd. All rights reserved.

Original language	English
Journal	Solar Energy
Volume	78
Issue number	2
Pages (from-to)	281-289
ISSN	0038-092X
DOIs	https://doi.org/10.1016/j.solener.2004.08.019
Publication status	Published - 2005
Event	ISES Solar World Congress 2003 - Gothenburg, Sweden Duration: 14 Jun 2003 → 19 Jun 2003

Conference

Conference	ISES Solar World Congress 2003
Country/Territory	Sweden
City	Gothenburg
Period	14/06/2003 → 19/06/2003
Sponsor	International Solar Energy Society

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title = "Analysis of the flow structure and heat transfer in a vertical mantle heat exchanger",

abstract = "The flow structure inside the inner tank and inside the mantle of a vertical mantle heat exchanger was investigated using a full-scale tank designed to facilitate flow visualisation. The flow structure and velocities in the inner tank and in the mantle were measured using a Particle Image Velocimetry (PIV) system. A Computational Fluid Dynamics (CFD) model of the vertical mantle heat exchanger was also developed for a detailed evaluation of the heat flux at the mantle wall and at the tank wall. The flow structure was evaluated for both high and low temperature incoming flows and for both initially mixed and initially stratified inner tank and mantle. The analysis of the heat transfer showed that the flow in the mantle near the inlet is mixed convection flow and that the heat transfer is dependent on the mantle inlet temperature relative to the core tank temperature at the mantle level. (C) 2004 Elsevier Ltd. All rights reserved.",

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T1 - Analysis of the flow structure and heat transfer in a vertical mantle heat exchanger

AU - Knudsen, Søren

AU - Morrison, GL

AU - Behnia, M

AU - Furbo, Simon

PY - 2005

Y1 - 2005

N2 - The flow structure inside the inner tank and inside the mantle of a vertical mantle heat exchanger was investigated using a full-scale tank designed to facilitate flow visualisation. The flow structure and velocities in the inner tank and in the mantle were measured using a Particle Image Velocimetry (PIV) system. A Computational Fluid Dynamics (CFD) model of the vertical mantle heat exchanger was also developed for a detailed evaluation of the heat flux at the mantle wall and at the tank wall. The flow structure was evaluated for both high and low temperature incoming flows and for both initially mixed and initially stratified inner tank and mantle. The analysis of the heat transfer showed that the flow in the mantle near the inlet is mixed convection flow and that the heat transfer is dependent on the mantle inlet temperature relative to the core tank temperature at the mantle level. (C) 2004 Elsevier Ltd. All rights reserved.

AB - The flow structure inside the inner tank and inside the mantle of a vertical mantle heat exchanger was investigated using a full-scale tank designed to facilitate flow visualisation. The flow structure and velocities in the inner tank and in the mantle were measured using a Particle Image Velocimetry (PIV) system. A Computational Fluid Dynamics (CFD) model of the vertical mantle heat exchanger was also developed for a detailed evaluation of the heat flux at the mantle wall and at the tank wall. The flow structure was evaluated for both high and low temperature incoming flows and for both initially mixed and initially stratified inner tank and mantle. The analysis of the heat transfer showed that the flow in the mantle near the inlet is mixed convection flow and that the heat transfer is dependent on the mantle inlet temperature relative to the core tank temperature at the mantle level. (C) 2004 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.solener.2004.08.019

DO - 10.1016/j.solener.2004.08.019

M3 - Conference article

SN - 0038-092X

VL - 78

SP - 281

EP - 289

JO - Solar Energy

JF - Solar Energy

IS - 2

T2 - ISES Solar World Congress 2003

Y2 - 14 June 2003 through 19 June 2003

ER -

Analysis of the flow structure and heat transfer in a vertical mantle heat exchanger

Abstract

Conference

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