Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Evaluation of Combustion gas during Fire Tests of Veneers Coated with Ammonium Salts

암모늄염으로 도포시킨 베니어판의 연소 시에 발생하는 연소가스 평가

  • Jin, Eui (Fire & Disaster Prevention Research Center, Kangwon National University) ;
  • Chung, Yeong-Jin (Dept. of Fire Protection Engineering, Kangwon National University)
  • 진의 (강원대학교 소방방재연구센터) ;
  • 정영진 (강원대학교 소방방재공학과)
  • Received : 2016.08.17
  • Accepted : 2016.09.09
  • Published : 2016.10.31
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Abstract

This study tested the combustion characteristics of veneer specimens coated with four kinds of ammonium salts. Each veneer specimen was coated three times with 20 wt.% ammonium salt solutions at room temperature. After drying, the combustion characteristics of the specimens coated with chemicals, were investigated using the cone calorimeter (ISO 5660-1, 2). The specimens coated with monoammonium phosphate (MAPP) and, diammonium phosphate (DMPP) showed a 6.7% and, 10.0%, lower mean heat release rate ($HRR_{mean}$), respectively, than that of the uncoated specimen. On the other hand, the specimens coated with MAPP showed a 15.7% higher $CO_{peak}$ production rate and the specimens coated with DAPP showed by 8.2% lower rate than that of the uncoated specimen. The veneer coated with ammonium sulfate (AMSF) and DAPP showed a 9.6% and 33.3% lower the peak smoke production rate ($SPR_{peak}$) than that of the uncoated specimen. In addition, the time to the peak smoke extinction area ($SEA_{peak}$) was delayed by 38.4% in the specimens coated with DAPP than the uncoated specimen. Therefore, DAPP inhibited the combustion properties of the veneer and showed a tendency to reduce smoke production.

이 연구에서는 4종의 암모늄염으로 도포된 베니어 시험편의 연소 특성을 시험하였다. 20 wt%의 암모늄염 수용액으로 각각 베니어 시험편에 3회 붓으로 도포하여 실온에서 건조시킨 후, 콘칼로리미터(ISO 5660-1, 2)를 사용하여 연소특성을 조사하였다. 그 결과, 모노암모늄 포스페이트(MAPP)와 디암모늄 포스페이트(DAPP)로 처리한 시험편은 순수한 베니어 시험편에 비해 평균열방출율($HRR_{mean}$)이 각각 6.7%, 10.0% 낮았다. 반면에 MAPP는 최대 일산화탄소발생속도($CO_{peak}$ production rate)가 순수한 베니어 시험편에 비해 15.7% 높았고 DAPP는 8.2% 낮았다. 황산암모늄(AMSF)으로 도포된 베니어 시험편의 최대 연기발생속도($SPR_{peak}$)는 순수한 베니어 시험편에 비해 9.6% 낮았고 DAPP로 처리된 시험편은 33.3% 낮았다. 또한 DAPP는 최대 연기비감쇠면적($SEA_{peak}$)에 다다르는 시간이 순수한 베니어 시험편에 비해 38.4% 지연되었다. 그러므로 DAPP는 베니어의 연소성질을 억제시키고 연기발생을 감소시키는 경향이 나타났다.

Keywords

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