Browse > Article

Evaluation of Thermal Performance for Air-Barrier Air-conditioning System in Perimeter Zone by Scale Model Experiment and Simulation  

Ham Heung-Don (Department of Indoor Environment Design, Daewon Science College)
Park Byung-Yoon (Department of Architecture, Suwon Science College)
Sohn Jang-Yeul (College of Architecture, Hanyang University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.10, 2005 , pp. 947-955 More about this Journal
Abstract
For the purpose of evaluating the thermal performance for air-barrier air conditioning system in perimeter zone, two air-conditioning systems, conventional perimeter air-conditioning system and air-barrier system, are evaluated and compared by scale model experiment and simulation during cooling season. As a result, measurement shows that supply air velocity of 1 m/s in the upstream direction at perimeter is more effective. Air-barrier system could reduce the cooling energy by $10\sim20\%$ compared with conventional system. Numerical simulation was carried out considering solar effect for reliable result. This method has improved the accuracy of numerical simulation for the space affected by the solar radiation. Both measurement and simulation results show that supply air velocity of 1 m/s at perimeter is the most effective.
Keywords
Thermal performance; Air-barrier air-conditioning system; Conventional air-conditioning system; Simulation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Grlicsman, L. R., Norford, L. K., Okutan, G. M. and Holden, K. J., 1996, Scale model studies for displacement ventilation, Proc. of the 5th International Conference on Air Distribution in Rooms, ROOMVENT '96, pp. 347-354
2 Sohn, J. Y. and Ham, H. D., 2001, An evaluation ventilation performance and local exhaust performance of air-conditioning systems by using tracer gas, Proceedings of the AIK, '2001 Spring Annual Conference, Vol. 21, No. 1, pp.685-688
3 Sohn, J. Y., Ham, H. D. and Park, B. Y., 2005, Evaluation of thermal environment according to air-barrier air conditioning system in perimeter zone, Koran Journal of Air-Conditioning and Refrigeration Engineering, Vol. 18, No. 4, pp. 370-376
4 Alan Fine, H., Jury, S. H., et al, 1981, Heat transfer in building thermal insulation the thickness effect, ASHRAE Trans., No. 2640
5 Anderson, B. R., 1981, The thermal resistance of airspaces in building constructions, Building and Environment, Vol. 16, No. 1   DOI   ScienceOn