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Advanced dual path HVAC systems for indoor air quality and humidity control.

Author(s) : KHATTAR M. K.

Summary

The author developed a new dual path HVAC concept for air-conditioned commercial buildings requiring increased ventilation air and cost-effective dehumidification. The system employs two separate air paths: one path of the system cools and dehumidifies ventilation air alone, or 100% outdoor air, while the other path provides primarily sensible cooling to the recirculation air only. Each path has an independent cooling and dehumidification subsystem, each optimized to meet different requirements. The ventilation air quantity in the outdoor air path can be controlled based on any sensor input such as CO2 level, occupancy, etc. This ability to vary the ventilation air quantity, yet maintain desired temperature and humidity levels, yields significant energy savings. The system's effectiveness has been proven in a full-scale field demonstration over two years of operation.

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Details

  • Original title: Advanced dual path HVAC systems for indoor air quality and humidity control.
  • Record ID : 1998-3813
  • Languages: English
  • Source: Emerging trends in refrigeration and air-conditioning.
  • Publication date: 1998/03/18
  • Document available for consultation in the library of the IIR headquarters only.

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