Moderator: Dave Teumim, CISSP
- Conference: AIChE Spring Meeting and Global Congress on Process Safety
- Year: 2018
- Proceeding: 2018 Spring Meeting and 14th Global Congress on Process Safety
- Group: Industry 4.0 Topical Conference
- Time: Monday, April 23, 2018 - 1:32pm-1:42pm
The DuPont-ACM model employs various methods for solving simultaneous systems of nonlinear algebraic and ordinary differential equations. This makes it possible, for example, to solve coupled differential mass and energy balances which are implicit in temperature and composition. Also, even though temperature and composition are not state variables, they can be given initial conditions.
For a release scenario, the model computes the time-varying liquid and vapor phase compositions and conditions. It also computes the required vaporization rates for HCHO and CH3OH resulting from, for example, a 30 wt% formaldehyde solution spill onto a dry surface of a fixed area under specific meteorological conditions. The paper will present details regarding the formaldehyde spill modeling methodology, with examples.