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Energy Efficiency for Airtightness and Exterior Wall Insulation of Passive Houses in Hot Summer and Cold Winter Zone of China

Author

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  • Xin Fu

    (College of Civil Engineering and Architecture, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China)

  • Xiaoqian Qian

    (College of Civil Engineering and Architecture, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China)

  • Lina Wang

    (College of Civil Engineering and Architecture, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China)

Abstract

There exists huge differences in climatic conditions and occupant energy-consuming behavior between Berlin and the “hot summer and cold winter zone of China” (HSCW), which implies that the building energy consumption compositions of two regions are completely different. In this paper, dynamic energy consumption simulation for passive houses with Design Builder software was performed. The results indicated that the improvement of building airtightness and exterior wall insulation can reduce annual heating and cooling load effectively, and more importantly the effect is much stronger on heating load than cooling load. Because of this, the paper proposed that the ratio of heating and cooling electricity consumption ( r ) should be adopted as an important index in energy efficiency evaluation of passive houses. It would contribute to the reasonable selection of ventilation modes and the exterior wall heat transfer coefficient, and benefit the healthy development of passive houses in HSCW.

Suggested Citation

  • Xin Fu & Xiaoqian Qian & Lina Wang, 2017. "Energy Efficiency for Airtightness and Exterior Wall Insulation of Passive Houses in Hot Summer and Cold Winter Zone of China," Sustainability, MDPI, vol. 9(7), pages 1-14, June.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:7:p:1097-:d:102460
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    References listed on IDEAS

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    Cited by:

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    3. Xiaojun Liu & Xin Chen & Mehdi Shahrestani, 2020. "Optimization of Insulation Thickness of External Walls of Residential Buildings in Hot Summer and Cold Winter Zone of China," Sustainability, MDPI, vol. 12(4), pages 1-21, February.
    4. Costanzo, Vincenzo & Yao, Runming & Xu, Tiantian & Xiong, Jie & Zhang, Qiulei & Li, Baizhan, 2019. "Natural ventilation potential for residential buildings in a densely built-up and highly polluted environment. A case study," Renewable Energy, Elsevier, vol. 138(C), pages 340-353.
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    8. Jingwen Rui & Huibo Zhang & Chengnan Shi & Deng Pan & Ya Chen & Chunyu Du, 2019. "Survey on the Indoor Thermal Environment and Passive Design of Rural Residential Houses in the HSCW Zone of China," Sustainability, MDPI, vol. 11(22), pages 1-19, November.
    9. Tadas Zdankus & Rolandas Jonynas & Juozas Vaiciunas & Sandeep Bandarwadkar & Tautvydas Lenkas, 2022. "Investigation of Thermal Energy Accumulation Using Soil Layer for Buildings’ Energy Efficiency," Sustainability, MDPI, vol. 14(9), pages 1-18, April.

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