Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

Economic Analysis of Heat Pump System through Actual Operation

교육 시설에서의 히트 펌프 냉난방 시스템 실사용을 통한 경제성 분석

  • Kim, Gil-Tae (Housing & Urban Research Institute) ;
  • Cheong, Seong-Ir (Department of Mechanical Engineering, Pusan National University) ;
  • Joo, Ho-Young (Department of Mechanical Engineering, Pusan National University) ;
  • Ahn, Young-Chull (School of Architecture, Pusan National University) ;
  • Lee, Jae-Keun (Department of Mechanical Engineering, Pusan National University)
  • Published : 2007.06.10
Download PDF
⟨ Previous Next ⟩

Abstract

The present study has been conducted economic analysis through actual operation of electric heat pump (EHP) and gas engine driven heat pump (GHP) which are installed at the same building in the university. Cost items, such as initial cost, annual energy cost and maintenance cost of each system are considered to analyze life cycle cost (LCC) and economical efficiencies are compared. The initial cost is considered on the basis of actual cost, and annual energy cost is converted into the cost after measuring electricity and gas consumption a day LCC applied present value method is used to assess economical profit of both of them. Variables used to LCC analysis are electricity cost escalation rate, natural gas cost escalation rate, interest rate, and service lives when each of them are 4%, 2%, 8%, and 20 years. The result shows that EHP (148,257,306 won) is more profitable than GHP (161,239,296 won) by 8.05% (12,981,990 won).

Keywords

References

  1. Park, Y., Park, M. Y. and Kim, C. M., 2003, Economic analysis of heat pump system in educational building, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 15, No. 10, pp. 879-887
  2. Park, Y. and Jung, S. S., 2002, Life cycle costing through operating number control of air conditioning systems in office buildings, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 14, No. 11, pp. 981-988
  3. Jung, S. S. and Kim, D. W., 2002, A study on the development of cost breakdown structure in present worth method and annual worth method by HVAC system for systematic LCC calculation, Korea Journal of Architectural Institute, Vol. 18, No. 6, pp. 167-174
  4. Jung, S. S., A study on the life cycle cost analysis of EHP and GHP for heating and cooling system of school building in pusan, Korea Journal of Architectural Institute, Vol. 19, No. 11, pp. 247-254
  5. Kim, Y. S. and Kang, C. H., A study on the effect measurement of ESCO projects using LCC technique., Korea Journal of Architectural Institute, Vol. 20, No. 2, pp. 89-96
  6. Jung,J. R. and Lee, K. H., 2003, Evaluation of alternatives for building service systems in high-rise building based on life cycle cost analysis, Korea Journal of Architectural Institute, Vol. 19, No. 1, pp. 249-257