Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Waste Heat Utilization of Melted slags at Pyrolysis, Gasification and Melting System

열분해 가스화 용융시스템에서 용융슬래그의 폐열 활용

  • Lee, Ho-Seok (Graduate school of Mechanical and Information Engineering, University of Seoul) ;
  • Sung, Sang-Chul (Graduate school of Mechanical and Information Engineering, University of Seoul) ;
  • Oh, Myung-Do (Department of Mechanical and Information Engineering, University of Seoul)
  • 이호석 (서울시립대학교 대학원 기계정보공학과) ;
  • 성상철 (서울시립대학교 대학원 기계정보공학과) ;
  • 오명도 (서울시립대학교 기계정보공학과)
  • Published : 2008.06.25
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Abstract

A study on waste heat utilization of melted slags at pyorlysis, gasification and melting system was performed. Researchers studied heat balance of substances that flow and flow out to the system which is consisted of melting furnace, combustion chamber, and waste heat boiler, then they calculated melting slags' quantity of heat by the first law of thermodynamics. If they use water cursh pit outflow which is gotten by quenching of melting slag as a energy for heating and cooling system, steam of waste heat boiler would be delivered to a steam turbine, making energy, then they will get 67,671,000 won of profit a year. It will take 3 years to repossess the cost that they invested for building it. And, if we predict durability of trash burner is 20 years, we will get approximately 1,150,407,000 won of profits in 17 years without the period when we repossess the building costs.

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