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Validation of a dynamic model for unglazed collectors including condensation: Application for standardised testing and simulation in TRNSYS and IDA
Dalarna University, School of Technology and Business Studies, Environmental Engineering.
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2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

An improved unglazed collector model has been validated for use in TRNSYS and IDA and also for future extension of the EN12975 collector test standard. The basic model is the same as used in the EN12975 test standard in the QDT dynamic method. In this case with the addition of a condensation term that can handle the operation of unglazed collectors below the dew point of the air. This is very desirable for simulation of recharging of ground source energy systems and direct operation of unglazed collectors together with a heat pump. The basic idea is to have a direct connection between collector testing and system simulation by using the same dynamic model and parameters during both testing and simulation. The model together with the parameters will be validated in each test in this way. This work describes the method applied to an unglazed collector operating partly below the dew point under real dynamic weather conditions, for a long period during the autumn 2010. The validation results also show that the model can handle operation of such a collector during the night. This is a common mode of operation for this collector type in a real system.

Place, publisher, year, edition, pages
2011. 4228-4238 p.
National Category
Environmental Engineering
Identifiers
URN: urn:nbn:se:du-20066Scopus ID: 2-s2.0-84873827439OAI: oai:DiVA.org:du-20066DiVA: diva2:871609
Conference
30th ISES Biennial Solar World Congress 2011, SWC 2011
Available from: 2015-11-16 Created: 2015-11-16 Last updated: 2015-11-16Bibliographically approved

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  • apa
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Language
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