accidental release model Articles
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An Expert System for Source-Term Analysis and Accidental Release Modeling
Title III of the Clean Air Act Amendments (CAAA) of 1990 requires establishing regulations to prevent the accidental release and to minimize the consequence of any such release of chemicals listed under 40 CFR Part 68. There is a need for a systematic approach for applying mathematical models to estimate the impact from the large number of potential release scenarios associated with these ...
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Inverting time dependent concentration signals to estimate pollutant emissions in case of accidental or deliberate release
We test the reliability of an inverse model to estimate the amount of mass released instantaneously by a source of pollutant in a turbulent boundary layer. To that purpose we use wind tunnel experiments simulating the dispersion of puffs due to the impulsive release of pollutant. For each of these emissions we recorded time dependent signals at fixed receptors. These single signals have been ...
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Press or pulse exposures determine the environmental fate of cerium nanoparticles in stream mesocosms
Risk assessment models indicate that stream ecosystems receiving municipal wastewater effluent may have the greatest potential for exposure to manufactured nanoparticles. We determined the fate of cerium oxide (CeO2) nanoparticles in outdoor stream mesocosms using 1) one‐time pulse addition of CeO2 nanoparticles, representative of accidental release and 2) continuous, low‐level press addition ...
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Air Dispersion Models - Models can be used to aid in demonstrating environmental compliance, analyzing process changes and evaluating the impacts of accidental releases
Air dispersion models are used to estimate the downwind concentration of pollutants emitted by various pollution sources such as industrial facilities and regional public traffic. Dispersion models play an important role in the industrial and regulatory communities. They are typically used to demonstrate compliance with National Ambient Air Quality Standards as part of new source review, ...
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5 Reasons to Perform a Consequence Modeling Analysis for Your Facility
The potential for accidental release of toxic chemicals to the environment is a daily threat for many industrial facilities and plants. These releases can occur very suddenly and unexpectedly, putting employees and the public at risk of injury or death, and the surrounding environment at risk of damage or destruction. A consequence modeling analysis is a powerful tool (and sometimes a regulatory ...
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Dispersion modelling of radioactive pollutants: application of the 'Demokritos' Transport code system for Complex Terrain (DETRACT) to the Hanford Purex scenario
The DETRACT computational system, consisting of a meteorological processor and a Lagrangian particles atmospheric dispersion model, is applied to the 'Hanford Purex Scenario' – an accidental 3 1/2 days of lasting release of radioactive 131I from the stack of the Hanford (USA) Purex Chemical Separations Plant (2–5 September 1963) – for evaluation purposes. During the release, the source intensity ...
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`Applying Proper Dispersion Models for Industrial Accidental Releases,` presented at the 2004 AWMA annual conference
Abstract Even though many industrial facilities have put extra efforts to prevent accidental releases of active and inactive chemicals from processes or storage, accidental releases do happen from time to time due to many reasons. Federal and state regulations require industrial facilities to evaluate and report the impacts of potential accidental releases in terms of distances to toxic endpoint ...
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Applying Proper Dispersion Models for Industrial Accidental Releases
Even though many industrial facilities have put extra efforts to prevent accidental releases of active and inactive chemicals from processes or storage, accidental releases do happen from time to time due to many reasons. Federal and state regulations require industrial facilities to evaluate and report the impacts of potential accidental releases in terms of distances to toxic endpoint ...
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Applying Proper Dispersion Models for Industrial Accidental Releases
Even though many industrial facilities have put extra efforts to prevent accidental releases of active and inactive chemicals from processes or storage, accidental releases do happen from time to time due to many reasons. Federal and state regulations require industrial facilities to evaluate and report the impacts of potential accidental releases in terms of distances to toxic endpoint ...
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Custom software solutions to modeling challenges
For over 25 years, BREEZE Software has developed a wide range of applications including air dispersion, accidental release, and explosion safety assessment models. In addition to the BREEZE product line, the development staff evaluates, develops, and adapts dispersion modeling algorithms for specific needs and builds custom software for government and various industries worldwide. The ...
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Carbon Capture & Storage: CO2 Capture
F7.1 | DOE and NETL’s Carbon Capture R&D Program Timothy Fout | Project Manager, US DOE/ NETL With pending legislation or EPA action on greenhouse gas emissions, there is a concerted effort underway to find ways to meet possible future limits in a cost effective manner. The DOE, through its Existing Plants Program, is targeting existing pulverized coal (PC) power plants since ...
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