Heating and Hot Water Supply Energy Comparison of Medium Capacity and Multi Boilers System applied to Military Officer Housing

군간부 숙소에 적용된 중용량 및 멀티 보일러 시스템의 난방 및 급탕에너지 비교

  • Kim, Min-Yong (Graduate School of Energy and Environment, Seoul National University of Science and Technology) ;
  • Kim, Young Il (School of Architecture, Seoul National University of Science and Technology) ;
  • Chung, Kwang Seop (School of Architecture, Seoul National University of Science and Technology)
  • 김민용 (서울과학기술대학교 에너지환경대학원) ;
  • 김영일 (서울과학기술대학교 건축학부) ;
  • 정광섭 (서울과학기술대학교 건축학부)
  • Received : 2014.07.07
  • Accepted : 2014.08.06
  • Published : 2014.09.01


Heating and hot water supply energy consumption of medium and multi boiler systems applied to military officer housing are compared with in-situ experiment and TRNSYS dynamic simulation program. In a multiple boiler system, small capacity boilers are connected in parallel to meet the required capacity. For handling partial loads, medium capacity boiler relies on on-off control, while multi boiler adopts PI control. Since multi boiler has higher efficiency and better control strategy, the results show that energy consumption can be reduced significantly with the multi boiler system.



  1. Min, T. S., 2010, Cascade System and Control Method of the Cascade System and a Heating Boiler Comprising The Cascade System, Patent (publication number : 1020120076092), Korea.
  2. SAREK, 2010, Advancement of Building Mechanical Code, pp. 30-34.
  3. SAREK, 2011, Air-Conditioning and Refrigeration Engineering Handbook, Vol. 2, pp. 1.2.1-1.2.8.
  4. Lee, K. G. and Hong, W. H., 2006, The Pattern Analysis of Urban Central Area Energy Consumption Using Mesh Data, The Architectural Institute of Korea, Vol. 22, No. 7, pp. 223-232.
  5. ASHRAE, 2007, Ashrae Standard 90.1, pp. G.1-G.47.
  6. ASHRAE, 2005, Ashrae Hand book fundamentals, pp 24.1-24.24.