Quasi-steady-state model of a counter-flow air-to-air heat-exchanger with phase change

Jørgen Rose; Toke Rammer Nielsen; Jesper Kragh; Svend Svendsen

doi:10.1016/j.apenergy.2007.07.009

Quasi-steady-state model of a counter-flow air-to-air heat-exchanger with phase change

Jørgen Rose, Toke Rammer Nielsen, Jesper Kragh, Svend Svendsen

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

19 Citationer (Scopus)

Abstract

Anvendelse af mekanisk ventilation med højeffektiv varmegenvinding in nord-europæiske eller arktiske klimaer, er en særdeles effektiv metode til at nedbringe energiforbruget til opvarmning af bygninger. Det medfører dog også en række problemer vedrørende kondensation og isdannelse i varmeveksleren. Udviklingen af højeffektive varmevekslere og strategier til at undgå/fjerne isdannelse medfører et behov for detaljerede modeller til at forudse og evaluere forskellige varmevekslerdesigns og strategier. Denne artikel beskriver en kvasi-stationær model af en modstrøms luft-til-luft varmeveksler som medtager betydningen af kondensation og isdannelse. Modellen er udviklet som et Excel-regneark, og resultater fra modellen sammenlignes med laboratorie-målinger. Som eksempel anvendes modellen til at fastlægge den mest energieffektive styrings-strategi for en specifik varmeveksler under både nord-europæiske og arktiske klimaforhold.
Udgivelsesdato: 24/10

Originalsprog	Engelsk
Tidsskrift	Applied Energy
Vol/bind	85
Udgave nummer	5
Sider (fra-til)	312-325
Antal sider	14
ISSN	0306-2619
DOI	https://doi.org/10.1016/j.apenergy.2007.07.009
Status	Udgivet - 2008
Udgivet eksternt	Ja

Bibliografisk note

Paper id:: APEN1295

Adgang til dokumentet

10.1016/j.apenergy.2007.07.009

AUB Link

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Citationsformater

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title = "Quasi-steady-state model of a counter-flow air-to-air heat-exchanger with phase change",

abstract = "Using mechanical ventilation with highly efficient heat-recovery in northern European or arctic climates is a very efficient way of reducing the energy use for heating in buildings. However, it also presents a series of problems concerning condensation and frost formation in the heat-exchanger. Developing highly efficient heat-exchangers and strategies to avoid/remove frost formation implies the use of detailed models to predict and evaluate different heat-exchanger designs and strategies. This paper presents a quasi-steady-state model of a counter-flow air-to-air heat-exchanger that takes into account the effects of condensation and frost formation. The model is developed as an Excel spreadsheet, and specific results are compared with laboratory measurements. As an example, the model is used to determine the most energyefficient control strategy for a specific heat-exchanger under northern European and arctic climate conditions.",

author = "J{\o}rgen Rose and Nielsen, {Toke Rammer} and Jesper Kragh and Svend Svendsen",

note = "Paper id:: APEN1295",

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T1 - Quasi-steady-state model of a counter-flow air-to-air heat-exchanger with phase change

AU - Rose, Jørgen

AU - Nielsen, Toke Rammer

AU - Kragh, Jesper

AU - Svendsen, Svend

N1 - Paper id:: APEN1295

PY - 2008

Y1 - 2008

N2 - Using mechanical ventilation with highly efficient heat-recovery in northern European or arctic climates is a very efficient way of reducing the energy use for heating in buildings. However, it also presents a series of problems concerning condensation and frost formation in the heat-exchanger. Developing highly efficient heat-exchangers and strategies to avoid/remove frost formation implies the use of detailed models to predict and evaluate different heat-exchanger designs and strategies. This paper presents a quasi-steady-state model of a counter-flow air-to-air heat-exchanger that takes into account the effects of condensation and frost formation. The model is developed as an Excel spreadsheet, and specific results are compared with laboratory measurements. As an example, the model is used to determine the most energyefficient control strategy for a specific heat-exchanger under northern European and arctic climate conditions.

AB - Using mechanical ventilation with highly efficient heat-recovery in northern European or arctic climates is a very efficient way of reducing the energy use for heating in buildings. However, it also presents a series of problems concerning condensation and frost formation in the heat-exchanger. Developing highly efficient heat-exchangers and strategies to avoid/remove frost formation implies the use of detailed models to predict and evaluate different heat-exchanger designs and strategies. This paper presents a quasi-steady-state model of a counter-flow air-to-air heat-exchanger that takes into account the effects of condensation and frost formation. The model is developed as an Excel spreadsheet, and specific results are compared with laboratory measurements. As an example, the model is used to determine the most energyefficient control strategy for a specific heat-exchanger under northern European and arctic climate conditions.

U2 - 10.1016/j.apenergy.2007.07.009

DO - 10.1016/j.apenergy.2007.07.009

M3 - Journal article

SN - 0306-2619

VL - 85

SP - 312

EP - 325

JO - Applied Energy

JF - Applied Energy

IS - 5

ER -

Quasi-steady-state model of a counter-flow air-to-air heat-exchanger with phase change

Abstract

Bibliografisk note

Adgang til dokumentet

AUB Link

Fingeraftryk

Citationsformater