Improved technique to estimate heat release rate from combustion in a large-scale con-calorimeter is studied. It takes a mixing effect within a large space into account, and adds a model, based on a constant stirred tank reactor equation, that readily predicts oxygen concentration at a measuring station into the conventional HRR measurement system based on Thornton’s rule. The developed technique is then validated with a series of n-heptane pool fire tests with combustions of 68 L of n-heptane. When the combustion efficiency was assumed 100% at an open space experiment, it is 28.9 MW and natural convection is dominant for mass transport of species. As a result, HRR is 32 MW at its maximum, which is much higher than it was expected. This is caused by a vigorous forced convection near the heptane flame due to the make-up air (around 4,000 cu. m/min), which makes it be evaporated more faster.
목차
Abstract 1. 서론 2. 풀화재 설계 및 발열량 측정기술 3. 연소시험동 기초계산 3.1 Smoke Filling 4. 풀화재 발열량 측정 실증시험 및 결과 5. 결론 후기 참고문헌
키워드
Heat Release RateMeasurementPool FireHeptaneIndoor Test Facility
화재의 과학적 감식, 원인규명 및 예방을 위한 학문과 기술의 발전을 도모하고, 산, 학, 연, 정의 상호 교류를 통한 화재예방과 조사 및 감식의 전문화와 함께 소방관련 정책방향 발전에 공한하며, 회원 및 화재 관련 분야의 국.내외 인사들과의 정보 교류를 위하여 설립되었다.
간행물
간행물명
한국화재감식학회 학회지 [Magazine of Fire Investigation Socity of Korea]