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밀폐계 가연성 목재분진의 폭발에너지와 산소소모율에 관한 연구 - Part I: 폭발에너지의 정량화 및 폭발효율

A Study on the Oxygen Consumption Rate and Explosion Energy of Combustible Wood Dust in Confined System - Part I: Quantification of Explosion Energy and Explosive Efficiency

  • 김윤석 (인천대학교 안전공학과) ;
  • 이민철 (인천대학교 안전공학과) ;
  • 이근원 (한국산업안전보건공단 산업안전보건연구원 화학물질안전보건센터) ;
  • 이동호 (인천대학교 소방방재연구센터)
  • Kim, Yun Seok (Safety Engineering, Incheon National University) ;
  • Lee, Min Chul (Safety Engineering, Incheon National University) ;
  • Lee, Keun Won (Chemical Hazard Research Team, Chemical Safety & Health Research Center, Occupational Safety and Health Research Institute) ;
  • Rie, Dong Ho (Fire Disaster Prevention Research Center, Incheon National University)
  • 투고 : 2016.04.06
  • 심사 : 2016.08.08
  • 발행 : 2016.08.31

초록

A dust explosion is a phenomenon of strong blast wave propagation involving destruction which results from dust pyrolysis and rapid oxidation in a confined space. There has been some research done to find individual explosion characteristics and common physical laws for various dust types. However, there has been insufficient number of studies related to the heat of combustion of materials and the oxygen consumption energy about materials in respect of dust explosion characteristics. The present study focuses on the relationship between dust explosion characteristics of wood dust samples and oxygen consumption energy. Since it is difficult to estimate the weight of suspended dust participating in explosions in dust explosion and mixtures are in fuel-rich conditions concentrations with equivalent ratios exceeding 1, methods for estimating explosion overpressure by applying oxygen consumption energy based on unit volume air at standard atmospheric pressure and temperature are proposed. In this study an oxygen consumption energy model for dust explosion is developed, and by applying this model to TNT equivalent model, initial explosion efficiency was calculated by comparing the results of standardized dust explosion experiments.

키워드

참고문헌

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