LOHA (Areal Locations of
Hazardous Atmospheres) is a
computer program designed to
model chemical releases for
emergency responders and
planners. It can estimate how a
toxic cloud might disperse after
a chemical release—as well as several fires and
explosions scenarios.
ALOHA is designed to produce reasonable results quickly
enough to be of use to responders during a real
emergency. Therefore, ALOHA’s calculations represent a
compromise between accuracy and speed. Many of
ALOHA’s features were developed to quickly assist the
responder. For example, ALOHA:
• Minimizes data entry errors by cross-checking the input
values and warning the user if the value is unlikely or
not physically possible.
• Contains its own chemical library with physical
properties for approximately 1,000 common hazardous
chemicals so that users do not have to enter that data.
Key Program Features
• Generates a variety of scenario-specific output,
including threat zone pictures, threats at specific
locations, and source strength graphs.
• Calculates how quickly chemicals are escaping from
tanks, puddles, and gas pipelines—and predicts how
those release rates change over time.
• Models many release scenarios: toxic gas clouds,
BLEVEs (Boiling Liquid Expanding Vapor Explosions),
jet fires, vapor cloud explosions, and pool fires.
• Evaluates different types of hazard (depending on the
release scenario): toxicity, flammability, thermal
radiation, and overpressure.
• Models the atmospheric dispersion of chemical spills
on water.
ALOHA is part of the CAMEO® software suite, which is
developed jointly by the National Oceanic and Atmospheric
Administration (NOAA) and the U.S. Environmental
Protection Agency (EPA).
LOHA (Areal Locations ofHazardous Atmospheres) is acomputer program designed tomodel chemical releases foremergency responders andplanners. It can estimate how atoxic cloud might disperse aftera chemical release—as well as several fires andexplosions scenarios.ALOHA is designed to produce reasonable results quicklyenough to be of use to responders during a realemergency. Therefore, ALOHA’s calculations represent acompromise between accuracy and speed. Many ofALOHA’s features were developed to quickly assist theresponder. For example, ALOHA:• Minimizes data entry errors by cross-checking the inputvalues and warning the user if the value is unlikely ornot physically possible.• Contains its own chemical library with physicalproperties for approximately 1,000 common hazardouschemicals so that users do not have to enter that data.Key Program Features• Generates a variety of scenario-specific output,including threat zone pictures, threats at specificlocations, and source strength graphs.• Calculates how quickly chemicals are escaping fromtanks, puddles, and gas pipelines—and predicts howthose release rates change over time.• Models many release scenarios: toxic gas clouds,BLEVEs (Boiling Liquid Expanding Vapor Explosions),jet fires, vapor cloud explosions, and pool fires.• Evaluates different types of hazard (depending on therelease scenario): toxicity, flammability, thermalradiation, and overpressure.• Models the atmospheric dispersion of chemical spillson water.ALOHA is part of the CAMEO® software suite, which isdeveloped jointly by the National Oceanic and AtmosphericAdministration (NOAA) and the U.S. EnvironmentalProtection Agency (EPA).
การแปล กรุณารอสักครู่..
