THE FLAMMABILITY ANALYSIS AND TIME TO REACH LOWER FLAMMABILITY LIMIT CALCULATIONS ON THE WASTE EVAPORATION AT 242-A EVAPORATOR

TA, HU

Hanford Site (Wash.)

关键词: Evaporators;    Flammability;    Radioactive Waste Facilities;    Radioactive Waste Processing;    Gases;   

DOI  :  10.2172/919543
RP-ID  :  RPP-CALC-29700 Rev 1
RP-ID  :  DE-AC27-99RL14047
RP-ID  :  919543

美国|英语

来源: UNT Digital Library

【 摘 要 】

This document describes the analysis of the waste evaporation process on the flammability behavior. The evaluation calculates the gas generation rate, time to reach 25% and 100% of the lower flammability limit (LFL), and minimum ventilation rates for the 242-A Evaporator facility during the normal evaporation process and when vacuum is lost. This analysis performs flammability calculations on the waste currently within all 28 double-shell tanks (DST) under various evaporation process conditions to provide a wide spectrum of possible flammable gas behavior. The results of this analysis are used to support flammable gas control decisions and support and upgrade to Documented Safety Analysis for the 242-A Evaporator.