RESULTS OF OFFSITE CONSEQUENCE ANALYSIS-DEMO RUN OF RMPRO

AMMONIA, NUETRALLY BUOYANT
RMPRO - Risk Management and Planning for Professionals              
               
RMP calculations from airborne quantity of toxic substances releases              
(LFL DISTANCES FOR FLAMMABLES ALSO)              
Chemical name Ammonia            
Molecular weight 17            
Amount of potential release, U.S. pounds (Adjusted release for LFL calcs.) 300            
Release time, minutes ( For LFL calculations enter 0.1: averaging time) 10            
Emission rate, gms/sec 227            
Wind speed, mi/hr 3.4            
Wind speed, m/sec 1.51776            
Toxic endpoint concentration (or LFL for flammables), ppm (or see next row)              
Toxic endpoint concentration(or LFL for flammables), mg/L 0.14            
If above is a 60 min value enter 1; for 30 min value enter 0 (or blank for LFL ) 0            
Distance to chosen receptor(user receptor), if any,m 200            
Potential release point height above stack base,m 1            
Nuetrally buoyant (2), Dense gas (1) or ground-level dispersion (0)- enter 2            
For urban setting enter 1, for rural setting enter 0 0            
For Plot of Concentration vs. Distance, enter min and max distances in meters 50 200          
               
Results- By stability conditions F E D C B A  
               
Distance from source to whichToxic endpoint concentration extends, m 367.0119 226.8688 209.459 130.94168 107.412499 72.14354  
Concentration in gms/ cu. m., user receptor,60 min. avg. 4.185302 0.940453 0.816314 0.3629753 0.25817687 0.117576  
Concentration in gms/ cu. m.,user receptor, 30 min. avg. (LFL for flammables) 4.808912 1.080581 0.937944 0.4170586 0.29664523 0.135095  
Concentration at chosen receptor, 30 min value, ppm(LFL for flammables) 548.9383 243.9644 211.7611 94.159945 66.9740347 30.50061  
Plume height (for plume rise model) at user input distance,m 200 401 1700 3000 3000 3000  

ChartObject Plot of Concentration vs. Distance


Last Updated on 2/1/98
By Dr. N. Nagaraj