Details:

Alternative Title:
Trans Soc Min Metall Explor Inc
Personal Author:
Zheng, Y. ; Organiscak, J.A. ; Zhou, L. ; Beck, T.W. ; Rider, J.P.
Zheng, Y. ; Organiscak, J.A. ; Zhou, L. ; Beck, T.W. ; Rider, J.P. Less -
Description:
The U.S. National Institute for Occupational Safety and Health (NIOSH)'s Pittsburgh Mining Research Division (PMRD) recently developed a series of models using computational fluid dynamics (CFD) to study gas distribution around a continuous mining machine with various fan-powered flooded bed scrubber discharge configurations in an exhaust curtain working face. CFD models utilizing species transport model without reactions in FLUENT were constructed to evaluate the redirection of scrubber discharge toward the mining face rather than behind the return curtain. The study illustrates the gas distribution in the slab (second) cut. The following scenarios are considered in this study: 100 percent of the discharge redirected back toward the face on the off-curtain side; 100 percent of the discharge redirected back toward the face, but divided equally to both sides; and 15 percent of the discharge redirected toward the face on the off-curtain side, with 85 percent directed toward the return curtain. These models are compared against a model with a conventional scrubber discharge where air is directed away from the face into the return. The models were validated against experimental data, proving to accurately predict sulfur hexafluoride (SF6) gas levels at four gas monitoring locations. This study includes a predictive simulation examining a 45° scrubber angle compared with the 23° angle for the 100 percent redirected, equally divided case. This paper describes the validation of the CFD models based on experimental data of the gas distribution results.
Subjects:
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Article Computational Fluid Dynamics (CFD) FLUENT Gas Distribution Scrubber Discharge
Source:
Trans Soc Min Metall Explor Inc. 342(1):15-21.
Pubmed ID:
29375242
Pubmed Central ID:
PMC5785087
Document Type:
Journal Article
Funding:
CC999999/Intramural CDC HHS/United States
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:5667a51c5ce518e2c640e15c8d79cec886a0e0d18ac2f06238e6c8c3b7fa4da5
Download URL:
https://stacks.cdc.gov/view/cdc/51413/cdc_51413_DS1.pdf
File Type:

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