Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title A Study on the Development of a Circular CAV Damper
Authors 권영필(Youngpil Kwon)
DOI http://dx.doi.org/10.6110/KJACR.2013.25.11.612
Page pp.612-616
ISSN 1229-6422
Keywords 정풍량 ; 댐퍼 ; 압력손실 ; 회전 모멘트 ; 비틀림 스프링 CAV ; Damper ; Pressure loss ; Rotating moment ; Torsional spring
Abstract A circular CAV damper has been developed, based on the investigation of the pressure loss, and the flow-resisting moment by the damper blade. When a torsional spring is attached to the damper axle, and the setting angle is adjusted to around 82°, the volume rate across the damper is almost independent of the static pressure. Such a CAV characteristic appears at an opening angle between 40° and 60°, where the normalized moment decreases linearly with the angle. In addition, by adjusting the setting angle, the volume rate can be controlled to within 10% error, regardless of the pressure loss.