دانلود CHARM v11.43.0.12 نرم افزار مدل‌سازی انتشار گاز سمی در هوا

The potential for accidental release of hazardous chemicals (air dispersion and transport), fires (BLEVE, pool fire, and jet fire), and explosions (mechanical failure and air dispersion and transport followed by vapor cloud explosion), poses a risk that must be addressed on several levels. The EPA Risk Management Program (RMP, Rule 112r) requires hazard assessment and emergency response programs. To assure that you have adequate resources and that plans are well organized for any contingency, you need to plan for emergency response. Should such an accident occur, you need real-time data to guide the response activities. CHARM software helps you meet all of these needs.

There are two versions of the CHARM software available; One assumes a single source in flat terrain. The second version allows for multiple sources in complex terrain but requires more input than the first. Both versions are available for downloading for a two week evaluation period on the Downloads page. Registration is required for trial version downloads - no financial information is required or requested if checkout is directly from Your Cart. They both provide calculations of air transport and dispersion, mechanical and vapor cloud explosions, and BLEVE, jet fire, and pool fire radiation.

The flat terrain version is also available as a web application, which can be accessed through a browser on the Internet and requires no special software to be loaded on the browser’s computer.

Both versions of CHARM can be used to estimate impacts from the use of chemical WMDs. The expected species that may be used (e.g. chlorine, mustard gas, sarin, soman, and VX) are in both databases. The complex terrain version can do an even more complete simulation. Many chemicals used for WMD are released as aerosol. The complex terrain version of CHARM is capable of simulating all major processes affecting aerosol. Some estimate of the size distribution of the aerosol in the released chemical is needed. After the release has occurred, CHARM can calculate the changes in the size distribution due to coagulation, condensation/evaporation, and deposition.

The aerosol capabilities of the complex terrain version of CHARM also allows impacts from biological WMDs (e.g. anthrax) to be estimated. The impacts can be given as air concentrations or surface deposition.