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Modeling, validation and time-dependent simulation of the first large passive building in Romania

Author

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  • Badescu, Viorel
  • Laaser, Nadine
  • Crutescu, Ruxandra
  • Crutescu, Marin
  • Dobrovicescu, Alexandru
  • Tsatsaronis, George

Abstract

A passive house is a cost-efficient building that can manage throughout the heating period, due to its specific construction design, with more than ten times less heat energy than the same building designed to standards presently applicable across Europe. This paper describes the thermal performance during the cold season of the AMVIC passive office building, located in Bragadiru, a small Romanian town 10 km south of Bucharest. A detailed description of the building structure and the HVAC equipment is made. A time-dependent model (PHTT – Passive House Thermal Transients) is developed and used. Models validation is performed by comparing the outputs with results by the Passive House Planning Package (PHPP) developed by Passive House Institute of Darmstadt. Two renewable energy sources are used during the cold season within the building. First, passive solar heating is provided by the large window on the façade oriented south. Second, a ground heat exchanger (GHE) increases the fresh air temperature. Results show that the GHE is the most useful and reliable renewable energy source from November to March, providing heat during the day and the heat flux increases when the weather is colder. The passive solar heating system provides a large part of the heating energy during the cold season. Classical building heating is necessary mainly during December–February.

Suggested Citation

  • Badescu, Viorel & Laaser, Nadine & Crutescu, Ruxandra & Crutescu, Marin & Dobrovicescu, Alexandru & Tsatsaronis, George, 2011. "Modeling, validation and time-dependent simulation of the first large passive building in Romania," Renewable Energy, Elsevier, vol. 36(1), pages 142-157.
    • Handle: RePEc:eee:renene:v:36:y:2011:i:1:p:142-157
    DOI: 10.1016/j.renene.2010.06.015
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    References listed on IDEAS

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    1. Peterkin, Neville, 2009. "Rewards for passive solar design in the Building Code of Australia," Renewable Energy, Elsevier, vol. 34(2), pages 440-443.
    2. Yezioro, Abraham, 2009. "A knowledge based CAAD system for passive solar architecture," Renewable Energy, Elsevier, vol. 34(3), pages 769-779.
    3. Badescu, Viorel, 2007. "Economic aspects of using ground thermal energy for passive house heating," Renewable Energy, Elsevier, vol. 32(6), pages 895-903.
    4. Badescu, Viorel & Laaser, Nadine & Crutescu, Ruxandra, 2010. "Warm season cooling requirements for passive buildings in Southeastern Europe (Romania)," Energy, Elsevier, vol. 35(8), pages 3284-3300.
    5. Badescu, Viorel, 2007. "Simple and accurate model for the ground heat exchanger of a passive house," Renewable Energy, Elsevier, vol. 32(5), pages 845-855.
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    Cited by:

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    2. Shilei Lu & Ran Wang & Shaoqun Zheng, 2017. "Passive Optimization Design Based on Particle Swarm Optimization in Rural Buildings of the Hot Summer and Warm Winter Zone of China," Sustainability, MDPI, vol. 9(12), pages 1-30, December.
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    7. Pop, Octavian G. & Fechete Tutunaru, Lucian & Bode, Florin & Abrudan, Ancuţa C. & Balan, Mugur C., 2018. "Energy efficiency of PCM integrated in fresh air cooling systems in different climatic conditions," Applied Energy, Elsevier, vol. 212(C), pages 976-996.
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    9. Ancuta C. Abrudan & Octavian G. Pop & Alexandru Serban & Mugur C. Balan, 2019. "New Perspective on Performances and Limits of Solar Fresh Air Cooling in Different Climatic Conditions," Energies, MDPI, vol. 12(11), pages 1-22, June.

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