Advertisement

Research on the Influence of Fresh Air on Indoor Air Distribution and Energy Consumption in Heating Room

  • Hanyu Yang
  • Enshen LongEmail author
  • Jin Li
Conference paper
  • 264 Downloads
Part of the Environmental Science and Engineering book series (ESE)

Abstract

Insufficient fresh air is a common problem in heating rooms, but the supply of cold fresh air not only affects the indoor temperature and flow field, but also causes thermal discomfort and increases energy consumption. The coupling effects of ventilation rate nk on air distribution, heating energy consumption, and thermal environment need deep investigation and research. Taking a heating room as an example, the changes in air distribution and heating energy consumption under different ventilation rates nk are studied in this paper, and the energy-saving ratio, temperature distribution, velocity distribution, and the indoor thermal comfort were analyzed under different operating conditions. The results show that the energy-saving ratio is 9.29% when nk equals 0.5 h−1, and the energy-saving ratio can reach 25.77% when nk rises to 2.0 h−1, but the increase in nk affects the indoor thermal comfort as well. Therefore, the optimal control range of nk is proposed no more than 1.0 h−1. The results can provide a reference for heating engineering applications.

Keywords

Fresh air Ventilation rate Air distribution Energy-saving ratio Thermal comfort 

Notes

Acknowledgements

This work was supported by the National Key Research and Development Program (2016YFC00400) and the National Natural Science Foundation of China (No. 51778382).

References

  1. 1.
    ASHREA: ANSI/ASHREA Standard 55-2013, Thermal Environmental Conditions for Human Occupancy. ASHREA, Atlanta (2013)Google Scholar
  2. 2.
    Chen, D., Liao, B., Wen, Y., et al.: Influence of new air introduction mode of household air conditioning on indoor thermal environment. Refrig. Air Conditioning (Sichuan) (03), 116–119 (2007)Google Scholar
  3. 3.
    Long, E.: Theoretical system of building energy consumption genes. Electromech. Inf. 19, 35–37 (2007)Google Scholar
  4. 4.
    Wang, L., Ma, G., Ma, A., et al.: Study on energy saving evaluation index of air-air heat recovery device. Build. Energy Conserv. 46(11), 57–62 (2018)Google Scholar
  5. 5.
    Geng, S., Li, Y., Han, X.: Research progress on indoor air quality and fresh air energy saving. Build. Energy Vent. and Air Conditioning 28(05), 32–38 (2009)Google Scholar
  6. 6.
    Tan, S., Sun, L.: Study on airflow organization of radiant heating and fresh air system in office. Fluid Mach. 44(10), 59–64 (2016)Google Scholar
  7. 7.
    Cheng, S.: Research on Energy Saving Effect of Fresh Air Heat Recovery System for Residential Buildings in Hot Summer and Cold Winter Area. Nanjing University (2018)Google Scholar
  8. 8.
    Li, Y., Wang, S., Meng, W., et al.: Study on the indoor temperature change characteristics of different end forms of intermittent air conditioners. Refrig. Air Conditioning (Sichuan) 29(05), 533–537 (2015)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.College of Architecture & EnvironmentSichuan UniversityChengduChina
  2. 2.Key Laboratory of Deep Earth Science and Engineering (Sichuan University)Ministry of EducationChengduChina

Personalised recommendations