Advertisement

Study on the Influence of Thermal Properties of Building Envelope on Indoor Pollutant Diffusion

  • Ruijun Wang
  • Ye WangEmail author
Conference paper
  • 240 Downloads
Part of the Environmental Science and Engineering book series (ESE)

Abstract

At present, China is in a critical period of 70% energy saving in buildings. In order to meet people’s needs for indoor lighting and permeability, the south wall of the same residence in cold region is replaced with the floor-to-ceiling window of Low-E glass in this paper. The realizable k − ε model was used to analyze the influence of outdoor environment conditions on indoor pollutant diffusion process and thermal comfort through different building envelope structure. The results show that the floor-to-ceiling window structure restrains the diffusion of pollutants from the floor at night. After 19 h diffusion, the average concentration value of indoor pollutant in the floor-to-ceiling window structure is 25.7% lower than that of the external wall structure. At this time, the indoor PMV values of the floor-to-ceiling window structure and the external wall structure are 0.14 and 0.05, respectively. And the average indoor temperature of the floor-to-ceiling window structure can meet the requirements of the average indoor temperature of floor heating.

Keywords

Cold region Diffusion of pollutants Air quality 

Notes

Acknowledgements

The project is supported by National Natural Science Foundation (Number 51,476,073, Number 51,266,004).

References

  1. 1.
    Kang, et al.: Impact of French windows on indoor thermal environment in warm air heating rooms. Heat. Vent. Air Cond. 44(4),104–108 (2014)Google Scholar
  2. 2.
    Wang, J.K., Shao, X.: Analysis over the influence of French windows on heating energy consumption of residential buildings. Residential Technol. 01(007), 21–23 (2011)Google Scholar
  3. 3.
    Zhang D.: Retrofit technology for energy saving of existing buildings. Sci. Technol. Vis. 24,123,194 (2013)Google Scholar
  4. 4.
    Wang, et al.: Numerical analysis on the effect of the envelope coupled HeatTransfer on C7H8 emission in a floor heating room. J. Beijing Univ. Technol. 42(12), 147–155 (2016)Google Scholar
  5. 5.
    Wang, J.W.: Numerical research of natural ventilation of civil residence in winter in cold zones. Lanzhou, China (2015)Google Scholar
  6. 6.
    Wang, et al.: Numerical analysis on the natural ventilation of a residence in winter in cold zone. J. Chongqing Univ. 39(3):85–94 (2016)Google Scholar
  7. 7.
    General Administration of Quality Supervision: Inspection and Quarantine of the People’s Republic of China, Ministry of Health, National Environmental Protection Directorate, Indoor air quality standards:GB/T18883-2002, China standard press, Beijing (2002)Google Scholar
  8. 8.
    Ministry of Housing and Urban-Rural Development People’s Republic of China, General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China, Design Code for Heating Ventilation and Air Conditioning of civil buildings: GB 50736–2012, China Architecture & Building Press, Beijing (2012)Google Scholar
  9. 9.
    Fang, X.L.: Numerical Simulation and Experimental Study of Dissemination and Purification of Gaseous Pollutant Stadiums, Shanghai, China (2013)Google Scholar
  10. 10.
    Geneva, ISO International Standard 7730: Moderate thermal environment determination of the PMV and PPD indices and specification of the conditions for thermal comfort, International Standard organization (1994)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.School of Environmental and Municipal EngineeringLanzhou Jiaotong UniversityLanzhouChina

Personalised recommendations