BREEZE Incident Analyst 1.3 Release Notes

Release Notes BREEZE Incident Analyst 1.3 September 15, 2015

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BREEZE Software

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Release Notes BREEZE Incident Analyst 1.3



BREEZE Incident Analyst Version 1.3 Release Notes

What’s New in 1.3

System Enhancements

Updated Tatuk control library to include the following improvements:

o Increased maximum image size that can be imported to 100 MB

o Improved map efficiency when processing a large number of model objects

o Improved the projection system and projection conversion functions

Upgraded to Access Database Engine 2013

Updated the Component One library to support operating BREEZE Incident Analyst via VNC

Adopted the worst-case release scenario in the U.S. EPA Risk Management Program (RMP) guidance for offsite consequence analysis (OCA) as the default weather conditions in the Meteorological form

http://www.breeze-software.com/AERMOD/



Overhauled the BREEZE Incident Analyst start page with a new informative layout



Added Energy measure unit options (such as Joules, Calories, Btu etc.) in the Option menu

Adopted the worst-case release scenario in the U.S. EPA Risk Management Program (RMP) guidance for offsite consequence analysis (OCA) as the default weather conditions in the Meteorological form



Dispersion Models

Incorporated the latest modeling algorithm of continuous buoyant plume/stack release type in the AFTOX model to align with U.S. EPA AFTOX

Added a feature to allow AFTOX to output maximum concentration at a specified height and time

Implemented a function to transfer the Source Term Wizard evaporation pool calculation output to AFTOX model

Fixed the U.S. EPA AFTOX bug regarding maximum concentration at given height and time

Increased the calculation resolution to improve the accuracy of maximum distance calculation for specific Level of Concern (LOC), which is a bug in the U.S. EPA AFTOX

Disabled incorrect grid and discrete receptor concentration in DEGADIS model

Updated DEGADIS summary results based on the output file to include maximum concentrations at centerline downwind distance

Enabled the capability for INPUFF model to execute properly on Windows 8 and Windows 8.1

Added maximum concentration contour and steady state concentration contour of SLAB results in BREEZE 3D Analyst



Fire Models

Updated the jet fire algorithm to include jet fire at any angle

Updated the time period for unconfined pool fire from Output form to Source form

Added realistic default failure temperature (instead of 0 K) for different materials for confined pool fire model



Improved jet fire view factor calculation algorithm



Explosion Models

Replaced Baker-Strehlow model with the new Baker-Strehlow-Tang model

http://breeze-software.com/Software/Incident-Analyst/A-New-Set-of-Blast-Curves-from-Vapor-Cloud-Explosion/



Added ground effect on both flame speed and explosion energy to the Baker-Strehlow-Tang model

Removed the exposure time parameter for the BLEVE model since the parameter is inconsequential

Source Term Wizard

Updated the dense gas determination method in the Source Term Wizard

Displayed calculated Richardson number in summary results

Added spill rate from vessels for evaporation pool in the results summary file

Removed the stack source type from the Source Term Wizard

Updated compressed gas release (choked flow and unchoked flow) calculation algorithms

Standard Examples

Added examples of finite and instantaneous liquid spill and buoyant plume/stack release for the AFTOX model

Added examples that export Source Term Wizard output to dispersion models



Bug Fixes:

Fixed map User Interface error caused by map control register problem in the Tatuk control library

Fixed a bug that prevented AFTOX to run successfully when using observation met data

Fixed a bug that caused incorrect stability parameter calculation in the AFTOX model when using observation met data

Fixed a bug that displayed a different evaporation rate in the AFTOX summary file as compared to the User Interface evaporation rate

Fixed a bug that used an incorrect unit for vapor cloud explosion in the TNO Multi-Energy model

Fixed a bug that caused the loss of the distance message when using the ruler tool in the Map Tab

Fixed a bug that caused low image resolution when copying and saving an image in the Map Tab

Fixed a bug that caused the object label displaying function in the Base Map Tab to not work properly



Fixed a bug that caused some functions (such as Add and Delete) in the Map Manager to not work properly

Fixed a bug that displayed incorrect sources created by the Source Term Wizard in the Map Tab

Fixed a bug in order to allow AFTOX to run when the averaging time is less than the liquid spill time

Fixed a bug that caused INPUFF runs to fail when only discrete receptors are used

Fixed a bug that transferred incorrect jet velocity and release temperature from Source Term Wizard output to dispersion models for compressed gas release



Known Issues:

Users have to manually input multiple meteorological datasets for the INPUFF model

Users have to currently input maximum surface emissive power for pool fire in the chemical database

Maximum emission rates calculated in the Source Term Wizard are conservative

The tank source in the Source Term Wizard does not consider leaks through pipes connected to a tank

Environment

BREEZE Incident Analyst 1.3 Release Notes