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Evaluation of a demand controlled ventilation strategy for a multizone campus building.

Number: pap. 3544

Author(s) : BRINK H., LAU J., LIN X.

Summary

The objective of this project was to evaluate the effectiveness of the carbon dioxide (CO2)-based demand control ventilation (DCV) system designed and installed for an actual building. The project is a case study of the University of Nebraska at Omaha’s Mammel Hall College of Business. All of the classrooms at Mammel Hall are ventilated using CO2-based DCV. This research is part of a more extensive research project on DCV in multiple zone systems. This project is significant because of the popularity of the sustainability movement that is demanding stricter energy codes and better indoor air quality (IAQ). DCV can meet both of these demands by reducing ventilation energy while maintaining acceptable IAQ. This project was intended to improve the way in which the control sequences for CO2-based DCV systems for multi-zone mechanical systems are designed. Currently, there is no authority on how to best manage the zone and system level DCV control ventilation sequences to meet Std. 62.1 for a multi-zone mechanical system. Many designers develop control sequences based on past experience, since a specific formula for multi-zone ventilation rate procedure (VRP) is lacking. Mammel Hall operates using one such “experience-based” strategy. The effectiveness of this strategy was evaluated using actual zone flow rates and CO2 concentration data trended from the EMCS.

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Pages: 10 p.

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Details

  • Original title: Evaluation of a demand controlled ventilation strategy for a multizone campus building.
  • Record ID : 30006818
  • Languages: English
  • Source: 2012 Purdue Conferences. 2nd International High Performance Buildings Conference at Purdue.
  • Publication date: 2012/07/16

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