Assessment of the 3420 Building Filtered Exhaust Stack Sampling Probe Location

Glissmeyer, John A. ; Flaherty, Julia E.

Pacific Northwest National Laboratory (U.S.)

关键词: Air Filters;    Positioning;    Stack Sampling;    Air Pollution Monitors;    Evaluation;   

DOI  :  10.2172/986279
RP-ID  :  PNNL-19563
RP-ID  :  AC05-76RL01830
RP-ID  :  986279

美国|英语

来源: UNT Digital Library

【 摘 要 】

Pacific Northwest National Laboratory performed several tests in the exhaust air discharge from the new 3420 Building Filtered Exhaust Stack to determine whether the air sampling probe for emissions monitoring for radionuclides is acceptable. The method followed involved adopting the results of a previously performed test series from a system with a similar configuration, followed by several tests on the actual system to verify the applicability of the previously performed tests. The qualification criteria for these types of stacks include metrics concerning 1) uniformity of air velocity, 2) sufficiently small flow angle with respect to the axis of the duct, 3) uniformity of tracer gas concentration, and 4) uniformity tracer particle concentration.