A Study on the Utilization of potential heat sources for Heat Pumps to District Heating System in Urban

도시 내 지역난방 Heat Pump용 잠재열원 이용에 관한 연구

  • Oh, Kwang Min ;
  • Kim, Lae Hyun
  • 오광민 ;
  • 김래현
  • Received : 2018.09.28
  • Accepted : 2018.10.30
  • Published : 2018.12.01


The purpose of this study is to estimate the available potential heat source for heat pump in the district heating supply area in the city. Unused energy potentials were estimated and integrated based on open source based data. In particular, geographical spatial analysis of recoverable heat energy density and heat demand in the heat source area of large retailers and public sauna facilities in the DH network located in the southern part of the metropolitan area (Pyeongtaek-si) was conducted. As a result of the study, the DH network area had a total potential energy of 1,741.7 toe/year for the two heat sources of large retailers and public saunas. It is estimated that 1,006.9 toe/year, which is 57.8% of the total, can be linked to the district heating. The large retailers showed a positive correlation with the floor area and energy use of 0.4937. The recoverable energy intensity was estimated to be $0.0017toe/m^2$ per unit area and $0.0069tCO_2/m^2$ for greenhouse gas emissions. In addition, public saunas were analyzed by comparing the empirical case with the theoretical calculation, and it was estimated that energy conservation estimate of 80% was $0.0315toe/m^2$ per bath area and $0.1183tCO_2/m^2$ for greenhouse gas emissions. The total potential energy amount of this area was positively correlated with the heat demand of apartment house by administrative district, and it was confirmed that it had a relatively high potential energy especially in traffic and commercial center.


District Heating system;DH network;Gas CHP;Heat Pump;Unused Heat Sources;Heat Map


  1. BP Statistical Review of World Energy June 2017.
  2. Ministry of Trade, Industry and Energy, "New & Renewable Energy Supply Statistics 2016," (2017).
  3. Ministry of Trade, Industry and Energy, "Korea's 3020 Renewable Energy Initiative," (2017).
  4. Ministry of Trade, Industry and Energy, "The 8th Basic Plan for Long-Term Electricity Supply and Demand(2015-2029)," (2017).
  5. Oh, M. D., "A Study on the Utilization of Temperature Difference Energy from dual Heat Source of Geothermal and Waste Water in Urban," Ph.D. Dissertation of University of Seoul, Seoul (2009).
  6. Korea Maritime and Ocean University, "Strategy of the New and Renewable Energy Technology Development using Unused Energy," Ministry of Knowledge Economy Report(2009).
  7. Jeon, J. G., "Development of Heat Pump System Using Combined Heat Sources for Greenhouse," Ph.D. Dissertation of Kyungpook National University, Daegu(2016).
  8. Jeong, Y. D., "Study on the Performance and Feasibility Analysis of PVT-GSHP Hybrid System,"Master's thesis of Pusan National University, Pusan(2017).
  9. Kim, W. S., "Analysis Study on the Performance Characteristics of a Solar and Solar-Geothermal Hybrid $Co_2$ Heat Pump System," Master's thesis of Chosun University, Gwangju(2011).
  10. Lund, R. and Persson, U., "Mapping of potential heat sources for heat pumps for district heating in Denmark," Energy, 110, 129-138(2016).
  11. Ministry of Environment, "2017 White Paper of Environment," (2017).
  12. Youn, J. S., "The Study on Developing Patent Road Maps for Heat Pump," Master's thesis of Hanbat National University, Daejeon(2006).
  13. Shin, J. S., "Performance Analysis of Two Stage Heat Source Cooling, Heating and Hot Water Heat Pump System using Geothermal Energy," Master's thesis of Seoul National University of Science and Technology, Seoul(2017).
  14. Heat Roadmap Europe. .
  15. Aalborg University, "Heat Roadmap Europe 2050(First Pre-study for the EU27)," (2012).
  16. Aalborg University, "Heat Roadmap Europe 2050(Second Prestudy for the EU27)," (2013).
  17. Aalborg University, "Stratego Enhanced Heating & Cooling Plans (Creating National Energy Models for 2010 and 2050)," Work Package2 Background Report 1(2015).
  18. Um, B. H. and Ahn, C. S., "An Economic Analysis of the Effluent Heat Supply from Thermal Power Plant to the Farm Facility House," Korean Chem. Eng. Res., 56(1), 6-13(2018).
  19. Korea Energy Agency, "Hot Water System using Waste Heat of Showcase Cooling Tower and Control Method," Measurement and Verification Report, (2017).
  20. Bae, C. W., "Analysis of Energy Consumptions and Energy savings at Superstores," Master's thesis of Seoul National University of Science and Technology, Seoul(2010).
  21. Lee, H., "Energy Saving Rate Analysis by Performance Improvement Factors in Hypermarket," Master's thesis of Dankook University, Yongin(2013).
  22. Eugene Investment & Securities Co. Ltd., "2018 Distribution White Paper," (2017).
  23. FNTIMES, "Home Plus and Lotte Mart to create a new mood(to prevent E-Mart sole lead)," newspaper article (Mar. 19, 2018).
  24. Choi, B. Y., Lee, K. H. and Joo, Y. J., "Cooling and Water Heating System for Energy Saving by Using Daily Waste Water Heat," The Korean Society for Energy, 1998.5, 111-116(1998).
  25. You, K. J., "Effective Utilization Technique of Thermal Energy for Public Saunas," Master's thesis of Hanyang University, Seoul(2014).
  26. Park, W. S., "A Study on the Heat Pump System of Wastewater Heat Source in a Public Bathroom," Master's thesis of Chung-Ang University, Seoul(2010).
  27. Ministry of Trade, Industry and Energy, "The 4th Master Plan for Integrated Energy Supply," (2014).
  28. Ministry of Environment, "Green House Gas & Energy Target Management," Notification 2017-197(enforced in Jan. 2017).
  29. Energy Act(amended in Dec. 2017).
  30. Korea Energy Agency, "The 2017 Handbook of Integrated Energy Business," (2017).
  31. Korean Statistical Information Service.
  32. Korea Energy Statistical Information System.
  33. Gyeonggi-do Statistical Information Service.
  34. Gyeonggi Data Dream.
  35. National Spatial Data Infrastructure Portal.
  36. Statistical Geographic Information Service.
  37. Korea District Heating Corp.