科技报告详细信息
Assessment of the HV-C2 Stack Sampling Probe Location
Glissmeyer, John A. ; Droppo, James G.
Pacific Northwest National Laboratory (U.S.)
关键词: Radioactive Waste Processing;    Testing;    Radioactive Waste Facilities;    Air Pollution Monitors;    Positioning;   
DOI  :  10.2172/919707
RP-ID  :  PNNL-16611
RP-ID  :  AC05-76RL01830
RP-ID  :  919707
美国|英语
来源: UNT Digital Library
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【 摘 要 】

Tests were performed to evaluate the location of the air-sampling probe in the proposed design for the Waste Treatment Plant’s HV-C2 air exhaust stack. The evaluation criteria come from ANSI/HPS N13.1-1999, “Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities.” Pacific Northwest National Laboratory conducted the tests on a 3.67:1 scale model of the stack. Limited confirmatory tests on the actual stack will need to be conducted during cold startup of the High Level Waste Treatment Facility. The tests documented here assessed the capability of the air-monitoring probe to extract a sample representative of the effluent stream in accordance with criteria in ANSI/HPS N13.1. The test parameters covered the expected range of system flowrates with both one and two operating fans. The current stack design calls for the sampling probe to be located about 10 diameters downstream of the junction of the duct from Fan A with the stack. In accordance with the statement of work and the test plan, the test measurements were made at that location and also at one point upstream and another downstream. An adjustment was made for the distance between a typical sampling probe inlet and the centerline of its mounting flange. Thus, the test measurements were made at three positions designated as Test Port 1, 2, and 3, respectively. The designed HV-C2 exhaust system includes dampers on the fan discharges. Custom-scale model dampers were fabricated to simulate the same number and configuration of damper blades shown in the design documents received from BNI. A subset of the test runs was run without the dampers to determine whether the dampers should be included in future tests on scale models.

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