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Application of the Solar Chimney System for Improving the Thermal Environment in Winter

겨울철 건물 열환경 개선을 위한 태양굴뚝 시스템의 응용

  • 오주홍 (인하대학교 건축공학과 대학원) ;
  • 김의종 (인하대학교 건축공학과) ;
  • 이현수 (인하대학교 건축공학과 대학원) ;
  • 서승직 (인하대학교 건축공학과)
  • Received : 2015.09.24
  • Accepted : 2015.10.28
  • Published : 2015.10.30

Abstract

In this study, the solar chimney, one of the passive solar systems, is proposed as a method to improve the thermal environment of northern zones in buildings. As this well-known system has rarely been used in building projects, an adequate application of the system is proposed in this paper: the solar chimney system is designed to meet the required ventilation rate and consequently to reduce the ventilation load in the northern part of a building. To investigate such a possibility, a numerical model for the system is developed, and results of numerical tests are used for energy simulations. The results were taken into account for test simulations in EnergyPlus. As a result, approximately 75% of the volumetric ventilation rate required in the north zone could be supplied with the air volume acquired through the system and the monthly mean load was reduced by 29.5%, from 1.584 kWh to 1.117 kWh. The analyses of hourly mean heating and ventilation load over the heating period indicated that the system was very effective at around 13:00. Results show that 33% reduction in the ventilation load and 17% in the heating load for the north zone could be acquired through this system.

Keywords

References

  1. Jang. H. I, Suh. S. J, Application of Solar Chimney System for Natural Ventilation in Underground Space, Journal of the Korean Solar Energy Society, Vol. 30, No. 2, 2010, pp. 87-95.
  2. Mathur. J, Bansal. N. K, Mathur. S, Jain. M, Anupma, 'Experimental investigations on solar chimney for room ventilation', Solar Energy, Vol. 80, No. 8, 2006, pp. 927-935. https://doi.org/10.1016/j.solener.2005.08.008
  3. Miyazaki. T, Akisawa. A, Kashiwagi. T, 'The effect of solar chimneys on thermal load mitigation of office buildings under the Japanese climate', Renewable Energy, Vol. 31, No. 7, 2006, pp. 987-1010. https://doi.org/10.1016/j.renene.2005.05.003
  4. Ministry of Commerce, Industry and Energy, Final Report on Building Energy Intensity Basis Study, 1999, pp. 130-139.
  5. ASHRAE, ASHRAE Handbook Fundamentals, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc, 2009, pp. 172-174.
  6. ASHRAE, ANSI/ASHRAE Standard 62.1 Ventilation for Acceptable Indoor Air Quality, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc, 2007, pp. 11-15.
  7. Ong. K. S, Chow. C. C, Performance of solar chimney, Solar Energy, Vol. 74, No. 1, 2003, pp. 1-7. https://doi.org/10.1016/S0038-092X(03)00114-2
  8. Suh. S. J, Thermal Environment in Building based on Theory and Analysis, Iljinsa, 2009, p. 280.
  9. Trombe. F, Robert. J. F, Cabanot. M, and Sesolis. B, Concrete Walls to Collect and Hold Heat, Solar Age, Vol. 2, No. 8, 1977, pp. 13-19.
  10. Watmuff. J. H, Charters. W. W. S, and Proctor. D, Solar and Wind induced External Coefficients for Solar Collectors, 2nd, Revue Internationale d'Heliotechnique, 1977.
  11. Churchill. S, Chu. H, Correlating Equations for Laminar and Turbulent Free Convection from a Horizontal Cylinder, International Journal of Heat Mass Transfer, Vol. 18, No. 9, 1975, p. 1049. https://doi.org/10.1016/0017-9310(75)90222-7
  12. Architectural Institute of Korea, Construction environmental planning, Kimoondang, 2003, p. 78
  13. Swinbank. W. C, Long-wave radiation from clear skies, QJR Meteorological Society, Vol. 89, No. 381, 1963, pp. 339-348. https://doi.org/10.1002/qj.49708938105
  14. Suh. S. J, Environmental Engineering in Architecture, Iljinsa, 2004, p. 40.
  15. EnergyPlus Documentation, EnergyPlus Manual, Version 8.1, U.S. Department of Energy, 2013.