A Study on the Characteristics of Proportional Control of Roll Screen Dampers’ Constant Air Volumes

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    In the present study, a new damper system using new technologies with a folding roll screen blade system was constructed. In addition, intelligent folding roll screen blades that can control the constant air volume in proportion to damper opening were constructed. Furthermore, an actuator was installed on a slim folding roll screen damper to construct an applied technology so that the constant air volume can be controlled in proportion to damper opening and closing in order to conduct an experimental study. As a result of the present study, the error rate between the theoretical air flow rate and the experimental air flow rate was in a range of ± 3%.The air flow rate increased linearly following the increase in damper opening. The air volume that passed through the roll screen damper increased in proportion to the static pressure and damper opening so that the air volume was controlled in proportion to the constant air volume.The simulation was conducted with damper opening degrees of 40%, 60% and 85 and according to the results, the damper outlet air volume was 158.2 m3/min when the opening was 40%, 223.7 m3/min when the opening was 60%, and 302.5m3/min when the opening was 80%. These simulation results were in good agreement with the experimental values.

     

     


  • Keywords


    Damper. Roll Screen, Constant, Volume, Proportional Control, Screen Blade

  • References


      [1] S. G. Luck and C. Pastia. Case Study of Variable Orifice Damper for Sensmic Protection of Structures. Bulletion of the Polytechnic Institude of Jassy, 2009, Constructions, Architechture Vol. 1(1), pp. 2017-2118.

      [2] G. M. S. Ahmed, P. R. Reddy, N. Seetharamaiah. Experimental Investigation of Magnctorheological Damping Effect on Surface Roughness of Work Piece during End Milling Process, 2012, International Journal of Procision Engineering and Manufacturing, Vol. 13(6), pp. 835-844.

      [3] I. H. Vadialaa, D. P. Sonib and D. G. Panchalc.. Semi-Active Control of a Benchmark Building using Neuro-Inverse Dynamics of MR Damper.. 2013, Procedia Engineering, Vol. 51, pp. 45-54.

      [4] Lee, C. B., Cheon, J. S., Kim, S. H., Park, J. Y. and Joo, H. K., Metal Fuel Development and Verification for Prototype Generation IV Sodium-Cooled Fast Reactor, 2016 Nuclear Engineering and Technology, Vol. 48, No. 5, pp. 1096~1108.

      [5] Yoo, J. W., Chang, J. W., Lim, J. Y., Cheon, J. S., Lee, T. H., Kim, S. K., Lee, K. L. and Joo, H. K., Overall System Description and Safety Characteristics of Prototype Gen IV Sodium Cooled Fast Reactor in Korea, 2016, Nuclear Engineering and Technology, Vol. 48, No. 5, pp. 1059~1070.

      [6] Lee, H. S., Yoon, K. H., Cheon, J. S. and Lee, C. B., Integrity Evaluation of Control Rod Assembly for Sodium-Cooled Fast Reactor due to Drop Impact, 2017, Trans. Korean Soc. Mech. Eng. A, Vol. 41, No. 3, pp. 233~239,

      [7] Cho, K.J., Choi, D.S., Ahn, H.J., Mechanism and Control of Reaction Force Compensation of XY Linear Motion Stage System, 2010, KSME Journal A, Vol. 35, No. 6, pp. 583~699.

      [8] You, Y.H., Ahn, H.J., A Passive Reaction Force Compensation (RFC) Mechanism for a Linear Motor Motion Stage, 2014, IJPEM, Vol. 15, No. 5, pp 1-5.

      [9] Nguyen, D.C., Yoo, Y.H., Ahn, H.J., A Passive Reaction Force Compensation Mechanism with a movable additional mass,KSME 2013 Annual Meeting, pp. 1842~1843

      [10] Ahn, H.J., You, Y .H., An Eddy Current Damper for Reaction Force Compensation for a Linear Motor Motion Stage, 2014, 14th ISMB, Linz, Austria, Aug. 11-14.

      [11] Kim, H.-S., Seong, M.-S., Choi, S.-B. and Kwon, O.-Y., Terformance Evaluation of a Full Vehicle with Semi-active MR Suspension at Different Tire Pressure, 2011, Transactions of the KSNVE, Vol. 21, No. 11, pp. 1067~1073.

      [12] Lee, G.-M., Ju, Y.-H. and Park, M.-S., Development of a Low Frequency Shaker using MR Dampers, 2013, International Journal of Precision Engineering and Manufacturing, Vol. 14, No. 9, pp. 1647~1650.

      [13] Seong, M.-S., Choi, S.-B., Kim, C.-H., Lee, H. K., Baek, J. H., Han, H. H. and Woo, J. K., Experimental Performance Evaluation of MR Damper for Integrated Isolation Mount, 2010, Transactions of the KSNVE, Vol. 20, No. 12, pp. 1161~1167.


 

View

Download

Article ID: 22528
 
DOI: 10.14419/ijet.v7i3.24.22528




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.