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A Robust Control Strategy for VAV AHU Systems and Its Application

  • Shibai Cheng
  • Youming Chen
  • Cary H. K. Chan
  • Tony Lee
  • Ho Lam Chan
  • Jianying Qin
  • Qiang Zhou
  • Allan Cheung
  • Kenny Yu
Part of the Advances in Intelligent and Soft Computing book series (AINSC, volume 133)

Abstract

The paper demonstrates a robust control strategy for variable air volume (VAV) air handling unit (AHU) systems which are commonly used in office buildings. Compared with traditional VAV AHU control adopting constant the setpoints of static pressure and supply air temperature, the strategy is composed of two independent modules, static pressure reset control and supply air temperature reset control. The optimization is realized by identifying optimal static pressure setpoint and supply air temperature setpoint to achieve predefined thermal comfort standards. The thermal comfort standards can be customized based on the practical operation performance through altering related parameters to tolerate unavoidable defects in real VAV AHU systems. The strategy was developed into software and applied in AHU systems of an office building located in Hong Kong. Its control performance was evaluated with respect to energy saving and indoor thermal comfort maintenance and proved to be effective.

Keywords

VAV AHU static pressure reset supply air temperature reset setpoint optimization 

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References

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    Yan, L.L.: Performance of Variable-Air-Volume Air-Conditioning System under Reduced Static Pressure Control in an Occupied Office. Technical Notes - Building Services Engineering Research and Technology, CIBSE (2003)Google Scholar
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    Sun, Y., Zheng, Z., Hou, X., Tian, P.: In: Fourth International Conference on Innovative Computing, Information and Control, pp. 119–123 (2009)Google Scholar

Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • Shibai Cheng
    • 1
    • 4
  • Youming Chen
    • 1
    • 4
  • Cary H. K. Chan
    • 2
  • Tony Lee
    • 2
  • Ho Lam Chan
    • 2
  • Jianying Qin
    • 2
  • Qiang Zhou
    • 2
  • Allan Cheung
    • 3
  • Kenny Yu
    • 3
  1. 1.College of Civil EngineeringHunan UniversityChangshaChina
  2. 2.Swire Properties Management LtdHong KongChina
  3. 3.Honeywell LimitedHong KongChina
  4. 4.Key Laboratory of Building Safety and Energy EfficiencyMOEBeijingChina

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