Skip to main content
SpringerLink
Log in

Studying the Performance of an Indirect Evaporative Pre-cooling System in Humid Tropical Climates

  • Conference paper
  • First Online:
Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019) (ISHVAC 2019)

Part of the book series: Environmental Science and Engineering ((ENVENG))

Abstract

The application of evaporative cooling technique is getting more and more attention. The aim of the work is to propose a hybrid air-conditioning system. The hybrid system employs an indirect evaporative heat exchanger (IEHX) as a pre-cooling unit that is operated in tandem with conventional air handling unit. The present work has developed a numerical model by considering the pre-cooling effect of the IEHX. The IEHX is able to adopt the room exhaust air as its working air. In addition, the mathematical formulation for the conventional cooling coil has been developed to study the influence of the pre-cooling effect on the chilled water temperature. The calculated results have demonstrated the ability of the evaporative pre-cooling unit to cool and dehumidify the ambient air under humid tropical climates. The chilled water supply temperature can be also raised due the pre-cooling process. Consequently, an improvement on the coefficient of performance for the chiller is achieved. The hybrid system is able to obtain a potential energy saving as a result of the pre-cooling effect and the enhanced efficiency.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 219.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  1. Chua, K.J., Chou, S.K., Yang, W.M., Yan, J.: Achieving better energy-efficient air conditioning—a review of technologies and strategies. Appl. Energy 104, 87–104 (2013)

    Article  Google Scholar 

  2. Duan, Z., Zhan, C., Zhang, X., Mustafa, M., Zhao, X., Alimohammadisagvand, B., et al.: Indirect evaporative cooling: past, present and future potentials. Renew. Sustain. Energy Rev. 16, 6823–6850 (2012)

    Article  Google Scholar 

  3. Xu, P., Ma, X., Zhao, X., Fancey, K.S.: Experimental investigation on performance of fabrics for indirect evaporative cooling applications. Build. Environ. 110, 104–114 (2016)

    Article  Google Scholar 

  4. Woods, J., Kozubal, E.: A desiccant-enhanced evaporative air conditioner: numerical model and experiments. Energy Convers. Manag. 65, 208–220 (2013)

    Article  Google Scholar 

  5. Cui, X., Mohan, B., Islam, M.R., Chua, K.J.: Investigating the energy performance of an air treatment incorporated cooling system for hot and humid climate. Energy Build. 151, 217–227 (2017)

    Article  Google Scholar 

  6. Chen, Y., Yang, H., Luo, Y.: Indirect evaporative cooler considering condensation from primary air: model development and parameter analysis. Build. Environ. 95, 330–345 (2016)

    Article  Google Scholar 

  7. Cui, X., Islam, M.R., Mohan, B., Chua, K.J.: Developing a performance correlation for counter-flow regenerative indirect evaporative heat exchangers with experimental validation. Appl. Therm. Eng. 108, 774–784 (2016)

    Article  Google Scholar 

  8. Zhou, X., Braun, J.: A Simplified Dynamic Model for Chilled-Water Cooling and Dehumidifying Coils—Part 2: experimental validation (RP-1194). HVACR Res. 13, 805–817 (2007)

    Article  Google Scholar 

  9. Thu, K., Saththasivam, J., Saha, B.B., Chua, K.J., Srinivasa Murthy, S., Ng, K.C.: Experimental investigation of a mechanical vapour compression chiller at elevated chilled water temperatures. Appl. Therm. Eng. 123, 226–233 (2017)

    Article  Google Scholar 

Download references

Acknowledgements

The project is supported by the Fundamental Research Funds for the Central Universities (xjj2018074), and China Postdoctoral Science Foundation (2018M631153).

Author information

Authors and Affiliations

  1. Institute of Building Environment and Sustainable Technology, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an, 710049, Shaanxi, China

    Xin Cui, Weichao Yan, Sicong Zhang, Liwen Jin & Xiangzhao Meng

  2. Xi’an Aerospace Propulsion Test Technology Institute, Xi’an, 710100, China

    Le Sun

Authors
  1. Xin Cui
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Le Sun
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Weichao Yan
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Sicong Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Liwen Jin
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Xiangzhao Meng
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Xin Cui .

Editor information

Editors and Affiliations

  1. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Zhaojun Wang

  2. Department of Building Science, School of Architecture, Tsinghua University, Beijing, China

    Yingxin Zhu

  3. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Fang Wang

  4. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Peng Wang

  5. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Chao Shen

  6. Department of Building Thermal Engineering, School of Architecture, Harbin Institute of Technology, Harbin, Heilongjiang, China

    Jing Liu

Rights and permissions

Reprints and permissions

Copyright information

© 2020 Springer Nature Singapore Pte Ltd.

About this paper

Check for updates. Verify currency and authenticity via CrossMark

Cite this paper

Cui, X., Sun, L., Yan, W., Zhang, S., Jin, L., Meng, X. (2020). Studying the Performance of an Indirect Evaporative Pre-cooling System in Humid Tropical Climates. In: Wang, Z., Zhu, Y., Wang, F., Wang, P., Shen, C., Liu, J. (eds) Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019). ISHVAC 2019. Environmental Science and Engineering(). Springer, Singapore. https://doi.org/10.1007/978-981-13-9524-6_49

Download citation

Publish with us

Policies and ethics

Search

Navigation