Advertisement

Effect of Glazing Ratio on Thermal Comfort and Heating/Cooling Energy Use

  • Haiying WangEmail author
  • Bjarne W. Olesen
  • Ongun B. Kazanci
Conference paper
  • 237 Downloads
Part of the Environmental Science and Engineering book series (ESE)

Abstract

Glazing ratio (GR) or window-to-wall area ratio is an important factor that affects thermal loads. It also has impact on thermal environment because solar radiation through windows and warm/cold window surface temperature in different seasons. In this study, GR of 30 and 100% was compared to see their impact on thermal environment and energy use. The study was performed based on a simple office model equipped with fan-coil system located in Paris. Air temperature-based thermostat control and operative temperature-based thermostat control were compared for both GR conditions. As expected, with 100% GR, the offices used more heating and cooling energy. Total heating energy increased about 140–150% and cooling energy increase 55–60%. Compared to 30% GR, thermal comfort became worse. During working hours, the air temperature change became higher with 100% GR. Statistics showed that there were less occupancy hours within ±0.7 (PMV) when 100% GR was used. Thermal conditions of north office were better than south office. The results also showed that with operative temperature control thermal comfort can be better for both north and south office. Based on the results, operative temperature control would be better to keep comfortable thermal environment for offices with high GR.

Keywords

Glazing ratio Thermal comfort Energy use Fan-coil system 

Notes

Acknowledgements

This study has been financially supported by the National Natural Science Foundation of China (No. 51678314).

References

  1. 1.
    Bessoudo, M., et al.: Indoor thermal environmental conditions near glazed facades with shading devices—Part I: Experiments and building thermal model. Build. Environ. 45(11), 2506–2516 (2010)CrossRefGoogle Scholar
  2. 2.
    Lyons, P., et al.: Window performance for human thermal comfort. In: ASHRAE 2000 Winter Meeting, Dallas, Texas (2000)Google Scholar
  3. 3.
    Atmaca, I., et al.: Effects if radiant temperature on thermal comfort. Build. Environ. 42(9), 3210–3220 (2003)CrossRefGoogle Scholar
  4. 4.
    Hardy, J.D.: The effective radiant field and operative temperature necessary for comfort with radiant heating. ASHRAE J. 4(11), 36–42 (1967)Google Scholar
  5. 5.
    Gagge, A.P., et al.: The effective radiant field and operative temperature necessary for comfort with radiant heating. ASHRAE J. 9(5), 63–70 (1967)Google Scholar
  6. 6.
    ASHRAE: ANSI/ASHRAE Standard 55: thermal environmental conditions for human occupancy. ASHRAE, Atlanta (2013)Google Scholar
  7. 7.
    European Committee for Standardization: EN 15251: Indoor Environmental Input Parameters for Design and Assessment of Energy Performance of Buildings Addressing Indoor Air Quality, Thermal Environment, Lighting and Acoustics, Brussels, Belgium (2007)Google Scholar
  8. 8.
    International Standard Organization for Standardization: EN ISO 7730: International Standard: Ergonomics of the Thermal Environment-Analytical Determination of Thermal Comfort by Using Calculations of the PMV and PPD Indices and Local Thermal Comfort Criteria, Geneva, Switzerland (2005)Google Scholar
  9. 9.
    Jain, V., et al.: Effect of operative temperature based thermostat control as compared to air temperature based control on energy consumption in highly glazed buildings. In: Proceedings of Building Simulation, November, Sydney: 2688–2695 (2011)Google Scholar
  10. 10.
    Julien, C., et al.: Simulation of control options for HVAC management of a typical office building. In: Climate 2009, Lisbon, Portugal (2009)Google Scholar
  11. 11.
    Kontes, G.D., et al.: Using thermostats for indoor climate control in office buildings: the effect on thermal comfort. Energies 10, 1368-22 (2017).  https://doi.org/10.3390/en10091368CrossRefGoogle Scholar
  12. 12.
    Wang, H., Olesen, B.W., Kazanci, O.B.: Using thermostats for indoor climate control in offices: the effect on thermal comfort and heating/cooling energy use. Energy Build. 188–189, 71–83 (2019)CrossRefGoogle Scholar
  13. 13.
    Li, R., et al.: Case-study of thermo active building systems in Japanese climate. Energy Procedia 78, 2959–2964 (2015)CrossRefGoogle Scholar
  14. 14.
    Kolarik, J., Olesen, B.W., et al.: Simulation of energy use, human thermal comfort and office work performance in buildings with moderately drifting operative temperatures. Energy Build. 43, 2988–2997 (2015)CrossRefGoogle Scholar
  15. 15.
    ASHRAE: ASHRAE Handbook—Fundamentals. Atlanta, USA (2013)Google Scholar
  16. 16.
    Simone, A., et al.: Operative temperature control of radiant surface heating and cooling systems. In: Proceedings of Clima: Wellbeing Indoors (2007)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Haiying Wang
    • 1
    Email author
  • Bjarne W. Olesen
    • 2
  • Ongun B. Kazanci
    • 2
  1. 1.Department of Environment and Municipal EngineeringQingdao University of TechnologyQingdaoChina
  2. 2.International Centre for Indoor Environment and Energy, Department of Civil EngineeringTechnical University of DenmarkKgs. LyngbyDenmark

Personalised recommendations