Open AccessPrediction of the thermal safety of nitrocellulose package in large scale
Author(s) -
Qiong Wang,
Jiaojiao Du,
Yan Gu,
Shuanbao Yu,
Zhang Lin-jun
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/804/4/042052
Subject(s) - extrapolation , nitrocellulose , ignition system , dimension (graph theory) , software package , materials science , kinetic energy , r package , scale (ratio) , thermodynamics , nuclear engineering , thermal , computer science , mechanics , environmental science , software , chemistry , mathematics , engineering , physics , computational science , statistics , programming language , biochemistry , quantum mechanics , membrane , pure mathematics
In order to assess the risk of nitrocellulose (NC) package atuo-ignition in warehouse, the three kinetic parameters of thermal decomposition of NC were calculated based on DSC curves using commercial software AKTS-kinetic module. On this basis, effects of ambient temperature (Ta), initial temperature of the package (T0) and cylinder diameter of package on time to ignition (τ) were studied using AKTS-thermal safety module. Results showed that as Ta and/or T0 increases the τ decreases exponentially, but the τ at different package dimensions is related to the Ta. More importantly, for a certain Ta, the τ doesn’t always change monotonously with the dimension, there is a dangerous dimension which are easier to ignite. It indicates that big risks exist when trying to predict the safe status of a certain NC package by extrapolation.