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Ventilation heat recovery with run around coil - System analysis and a study on efficency improvment - Part I
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration. (Uppvärmning och ventilation)ORCID iD: 0000-0003-3194-1762
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0001-7354-6643
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration. (Uppvärmning och ventilation)ORCID iD: 0000-0003-3896-2443
2009 (English)In: Ashrae - Symposium on “Sustainability and Green Buildings”, October 5, 2009, KUWAIT, 2009Conference paper, Published paper (Refereed)
Abstract [en]

A run around coil ventilation heat recovery system is analyzed in order to identify important performance factors. The aim of this investigation was to find the factors that influence the system performance, with focus on the brine side of the system. A test rig was built to provide measurements for the evaluation of the system behavior during different operating conditions. Results from measurements and calculations are presented.  Three significant factors that affect system efficiency have been identified, the brine flow rate, the concentration of glycol and the charge (pressure) of the system. In addition suggestions on possible further analysis are presented to the reader. It is also concluded that for many existing systems, the heat transfer resistance may be considered to be approximately constant throughout the year even considering the fact that the outdoor temperature changes significantly.

Place, publisher, year, edition, pages
2009.
Keyword [en]
Run-around coil, ventilation heat recovery, performance factors, cross-flow heat exchangers
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-75580OAI: oai:DiVA.org:kth-75580DiVA: diva2:490639
Conference
Ashrae RAL Symposium on Sustainability and Green Buildings
Note
QC 20120206Available from: 2012-02-06 Created: 2012-02-06 Last updated: 2012-02-06Bibliographically approved

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Ventilation heat recovery with run around coil: System analysis and a study on efficiency improvement – Part I(299 kB)493 downloads
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Wallin, JörgenMadani, HatefClaesson, Joachim

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
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