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A Case Study on Effectiveness Assessment of Supply Air System Using Pit in Building

Pit를 이용한 건물 급기방식의 효용성 평가에 관한 사례 연구

  • Min, Joon-Ki (Dept. of Architecture Engineering, Kyung Hee University)
  • Received : 2017.04.10
  • Accepted : 2017.05.31
  • Published : 2017.06.01

Abstract

In this study, the flow effect of warming and cooling in the air supply of a pit for air conditioning were evaluated in BS art museum. We simulated the flow temperature for a pit winter and summer seasons using computational fluid dynamics. Consequential, energy saving, energy saving costs and initial payback periods were calculated and the following conclusions were drawn. The warming effect of the winter increased by $18.1^{\circ}C$ and $0.2^{\circ}C/m$ and the cooling effect of the summer decreased by $6.1^{\circ}C$ and dropped to $0.07^{\circ}C/m$. Energy saving appeared to be 19.1 kW in the summer and 54.3 kW in winter. Energy saving costs ranged from 2,567,119 won/year to 5,134,238 won/year and at minimum, initial payback period for initial investment was 3.9 years. As a result, the air supply system using an existing pit without any burden on initial investment costs is believed to contribute to energy saving through warming and cooling of unutilized energy effects.

Keywords

References

  1. Lee, Y. G. and Yoon, J. H., 2001, Optimal System Design Method for a Building Application of Cool Tube System, Journal of AIK, Vol. 17, No. 6.
  2. Lee, S. Y., Cho, J. K., Hong, M. H. and Jeong, C. S., 2005, An Analysis of Reduction Effect on Energy Consumption using Thermal Labyrinth in building, 2005 SAREK Summer Conference, pp. 1281-1286.
  3. Son, W. T. and Lee, S., 2004, Study on Fresh Air Load Reduction System by Using Geothermal Energy, Journal of SAREK, Vol. 16, No. 12, pp. 1218-1226.
  4. Min, J. K. and Kim, J. T., 2008, A Geothermal Model of Pit Area Using Computational Fluid Dynamics, Journal of KIEAE, Vol. 8, No. 5, pp. 11-16.
  5. Min, J. K. and Kim, J. T., 2008, Effectiveness Assessment on the Soil Temperature of KMA as Ground Heat Source Using CFD in Pit Area, Journal of KIEAE, Vol. 8, No. 5, pp. 49-54.
  6. Min, J. K., Suel, S. U. and Kim, K. S., CFD Model of Pit's Cool tube System for Reducing Effect of Fresh Air & Saving Building Energy Consumption, SET2008, Vol. 1, pp. 1033-1040, 2008.08
  7. Min, J. K. and Nam, S. Y., 2014, Case Study on Application of Ground Heat Source in Thermal Labyrinth by CFD Model, Journal of KSGEE, Vol. 10, No. 1, pp. 1-6.
  8. www.kepco.co.kr