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Decoupled ventilation strategies for enhanced IAQ. "Demand cooling" and "demand ventilation": recent findings.

Author(s) : SEKHAR C.

Summary

One of the common strategies employed to improve indoor air quality is to ensure good exposure control. This necessitates that both ventilation provision and ventilation control are given due consideration. The concept of decoupling "ventilation air" from "supply air" is an attractive option to provide the adequate quantity of and the appropriate control of ventilation. This paper introduces the newly developed single coil twin fan (SCTF) system and the personalised ventilation (PV) system, both of which show considerable promise in their abilities to provide good IAQ and energy efficiency. The SCTF system is a newly developed air-conditioning and air distribution system that improves occupants' thermal comfort and indoor air quality whilst significantly saving energy. It provides "demand ventilation" and "demand cooling" by dynamically responding to the varying requirements in the individual occupied zones of a building. The PV system is fundamentally aimed at improving ventilation in the immediate breathing zones of occupants in the built environment. Some findings from a field trial of the SCTF system as well as results from environmental chamber studies of the PV system are presented.

Details

  • Original title: Decoupled ventilation strategies for enhanced IAQ. "Demand cooling" and "demand ventilation": recent findings.
  • Record ID : 2007-2236
  • Languages: English
  • Source: Proceedings of the 37th International HVAC&R Congress [CD-ROM].
  • Publication date: 2006/12/06

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