DARPA proposers day

DARPA UPdate -- DSO Proposers Day FINAL 18 May_Page_1 DARPA UPdate -- DSO Proposers Day FINAL 18 May_Page_2

Seminar: Management of Bag Barriers in Underground Coal Mines for the Suppression of Coal Dust Explosions

Our presenter for this Friday, May 6, 2016  is as follows:

Presenter:   Mr. Jay Schafler & Mr. Jake Brinkman, PhD Candidates (Dr. Johnson)

Title:  “Management of Bag Barriers in Underground Coal Mines for the Suppression of Coal Dust Explosions”

 

Abstract:

During the underground mining of coal, methane gas is released from the ore body.  Proper ventilation prevents accumulation of methane into explosive quantities, and engineering safeguards assist in limiting ignition sources.  Should the safeguards fail, a methane ignition creates a pressure pulse that travels down the mine heading and lifts the fine coal particles lining the openings.  Once these particles are lifted into a dust cloud of a certain concentration, they too can be ignited, propagating the explosion through the mine.  While this does not occur frequently, it is possible, and it is an ever present danger in a coal mine.  Three US accidents have occurred in this manner in the past 15 years that have killed 50 miners. Raising the incombustible dust content in a mine through the use of an inert dust can prevent the conversion of a methane explosion into a coal dust explosion. Inertants are added by rock dusting in the US.  Several other nations address the issue through the additional use of a barrier system comprised of an inertant that is stored in concentrated amounts and then released by the pressure front to extinguish or suppress the flame front. This project focuses on one of these barrier systems that employs plastic bags which hang from the roof and disintegrate under pressures seen during explosion events.  This project researches the mines that use the system, regulations concerning barrier usage, and the feasibility of using or adapting these barrier systems to US coal mines. This is an ongoing project consisting of: literature reviews, consultant collaboration, trial setups at MS&T Experimental Mine and at operating underground coal mines, industry demonstration days, and communication loops with mines, miners, mining interest groups, mining regulators, and mine inspectors.

Advanced next-generation nuclear reactor thermal-fluid model and simulation validation

see eCONNECTION article

Dr. Brian Woods, professor of nuclear science and engineering at Oregon State University and chair candidate for Missouri S&T’s mining and nuclear engineering department, will present a seminar titled “Advanced next-generation nuclear reactor thermal-fluid model and simulation validation” at noon Monday, April 25, in Room 216 McNutt Hall.

Guest Lecture: better environmental protection

Dr. David Robertson, Curators’ Teaching Professor of political science at the University of Missouri-St. Louis (UMSL) and the 2016 Maxwell C. Weiner Distinguished Professor of Humanities at Missouri S&T, will present “State and Landscape: The American Environmental Constitution” from 3:30 to 4:30 p.m. Wednesday, April 20, in Room 103 Engineering Management Building.

see article in eNews

Guest Lecture: The Difficulties of Data Collection under Extreme Conditions

Cochran Colloquium 2

Guest Lecture: The Importance of Collective Science

Cochran Colloquium 1

Discussion on National Institute for Occupational Safety and Health

The weekly Rock Mechanics and Explosives Research Center (RMERC) Graduate Gathering is held in the  RMERC Building – 1006 Kingshighway, in Conference Room 106 from 3:30-4:20

Our presenter for this Monday, April 25, 2016  is as follows:

      Presenter:   Dr. Aleksandar Bugarski

      Title:  National Institute for Occupational Safety and Health (NIOSH)

       Abstract:   Diesel researchers at National Institute for Occupational Safety and Health (NIOSH) Pittsburgh Mining Research Division (PMRD) are dedicated to reducing risks associated with exposure of workers in underground mines to aerosols emitted by diesel-powered equipment. Due to extensive use of diesel-powered vehicles in confined space, underground miners are exposed to relatively high concentrations of submicron particulate matter, noxious gases, and other pollutants linked to acute and chronic health problems. In 2012, the IARC (2012) declared diesel engine exhaust as a carcinogen to humans (Group 1). NIOSH PMRD has been focused on the applied research addressing various aspects of multifaceted and integrated approach toward reducing exposure of underground miners to diesel aerosols. The presentation will discuss some of the current, and future NIOSH PMRD diesel team studies and initiatives.

 

      Bio:   Dr. Aleksandar Bugarski is the lead research engineer with National Institute for Occupational Safety and Health (NIOSH), Pittsburgh Mining Research Division (PMRD). Primary focus of his research is assessment and control of exposure of underground miners to diesel pollutants and characterization of diesel aerosols. Dr. Bugarski has extensive experience in testing and evaluating technologies for curtailment of diesel particulate matter and gaseous emissions in underground environment and laboratory. He received his Ph.D. from Mechanical and Aerospace Engineering Department of West Virginia University for his work on characterization of particulate matter emitted from in-use heavy-duty diesel engines.

Guest Lecture: The Difficulties of Data Collection under Extreme Conditions

see eNews article

Dr. James Cochran, professor of statistics and Rogers-Spivey Faculty Fellow at the University of Alabama

4 p.m. Friday, April 22

140 Toomey Hall

Missouri S&T’s office of sponsored programs distinguished research seminar series

Seminar “Numerical Study on Borehole Geomechanics Based on Discrete Element Method”

The weekly Rock Mechanics and Explosives Research Center (RMERC) Graduate Gathering is held in the  RMERC Building – 1006 Kingshighway, in Conference Room 106 from 3:30-4:20 each Friday that MS&T classes are in session.

Anyone is welcome to attend, and please, feel free to bring a friend!

Our presenter for this Friday, April 15, 2016  is as follows:

      Presenter:   Chao (Torry) Zeng, PhD Candidate (Advisor: Dr. Wen Deng, Geotechnical Engineering)

Chao (Torry) Zeng PhD Student 08/2015-present MS China University of Petroleum, 2012-2015 BS China University of Petroleum, 2008-2012 Email: zc727@mst.edu

      Title:  “Numerical Study on Borehole Geomechanics Based on Discrete Element Method”

       Abstract:  

The rising demand of fuel energy prompts petroleum engineers turning to unconventional oil recovery, e.g., hydraulic fracturing for shale gas. On the basis of that, this presentation focus on studying hydraulic fracturing problems near the borehole. The work highlights numerical simulation by using discrete element method, as opposed to most conventional analysis based on the theories of continuum mechanics. PFC (particle flow code), a discrete element software, was employed in my work to mainly analyze the mechanism of wellbore instability in particular formation and hydraulic fracturing propagation in specific layer. Using the hydro-mechanical coupling within PFC, the effect of principal stress, pore pressure and fluid parameters on wellbore instability is analyzed. The interaction of hydraulic fracturing and pre-existing natural fractures is also explored, justified against laboratory hydraulic fracturing experiments, to investigate the fracturing trajectory and optimal dip angle of natural fractures.

Seminar: The systems in the brain that determine when, how, and why we sleep

see notice in eConnection

3 p.m. Tuesday, April 12, in Room B-10 Bertelsmeyer Hall