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UID:46@cds.iisc.ac.in
DTSTART;TZID=Asia/Kolkata:20240311T100000
DTEND;TZID=Asia/Kolkata:20240311T110000
DTSTAMP:20240310T165024Z
URL:https://cds.iisc.ac.in/events/cds-seminar10211th-march-non-equilibrium
 -plasma-and-its-use-in-combustion-a-modeling-perspec6ve/
SUMMARY:CDS Seminar@102:11th March: Non-Equilibrium Plasma and its Use in C
 ombustion: A Modeling Perspec6ve
DESCRIPTION:Department of computational and Data Sciences\nDepartment semin
 ar\n\n\n\nTitle: Non-Equilibrium Plasma and its Use in Combustion: A Mode
 ling Perspec6ve\nSpeaker: Taaresh S. Taneja\, Department of Mechanical Eng
 ineering\, University of Minnesota\, USA\nDate and time: 11 March 2024 (M
 onday)\, 10:00 AM\nVenue: CDS 102\n\n\n\nAbstract:\n\n\nNon-equilibrium or
  Low Temperature Plasma is a state of a gas which is characterized by a di
 fference in the energies of the electrons and other heavy species of the 
 gas. Such a plasma typically constitutes of gas molecules\, a relatively 
 lower density of ions and rotational\, vibrational\, and electronic excite
 d states\, neutral radicals\, along with free electrons. Non-equilibrium 
 plasmas can exist at various gas pressures ranging from 0.1 – 106 Pa an
 d gas temperatures ranging from 100 – 10000 K. Across these wide range 
 of conditions\, the physical and chemical properties of the plasma can var
 y substantially – which make them extremely useful in diverse technolog
 ical areas such as semiconductor manufacturing\, water treatment\, medica
 l equipment sterilization\, nanomaterial synthesis\, chemical reforming\,
  combustion assistance\, etc. Between 104 - 106 Pa and 300 – 5000 K\, th
 ese non-equilibrium plasma discharges can be used for assisting combustio
 n. This assistance is provided majorly through two channels – gas heati
 ng and chemical radical production. Both these channels can be used to ign
 ite renewable and carbon-free fuels such as ammonia (NH3)\, which is very
  difficult to burn\, and stabilize flames in challenging conditions such 
 as gas turbines\, scramjet\, and rocket combustors. Moreover\, the chemic
 al pathways introduced by the non-equilibrium of the gas\, can also help t
 o lower\, or completely prevent emissions from combustion\, such as unbur
 ned hydrocarbons\, soot\, CO2\, CO and NOx. High fidelity computational s
 imulations (DNS / LES) of non-equilibrium “plasma assisted combustion
 ” (PAC) face various constraints due to the wide-ranging temporal (10-15
  – 10-2 s) and spatial (10-6 – 10-1 m) scales of this problem\, which
  make the system of governing equations very stiff. Furthermore\, the hig
 hly coupled interaction of electrostatics\, plasma chemistry\, combustion
  chemistry\, and turbulent flow renders PAC its multi-physics nature. Thi
 s talk will provide an overview of the governing physics\, the mathematic
 al formulation of different models\, and a few technological applications
  of non- equilibrium plasma assisted combustion.\n\nBiography:\n\nTaaresh 
 Taneja is a 5th year PhD candidate at the University of Minnesota (UMN)\, 
 Twin Cities\, who is currently focused on modeling non-equilibrium plasma 
 assisted combustion. He works with Prof. Suo Yang\, in the Computational R
 eactive Flow and Energy Laboratory (CRFEL) at UMN. For his research\, he h
 as received the UMII MNDrive Fellowship\, NSF INTERN Supplemental Funding 
 Opportunity and the UMN Doctoral Dissertation Fellowship\, along with othe
 r travel grants for presenting his work at conferences. Taaresh has also i
 nterned at the National Renewable Energy Laboratory\, Colorado and at the 
 Sandia National Laboratory\, California during his PhD. Before joining UMN
  for his PhD in 2019\, Taaresh worked as a CFD engineer at Johnson Control
 s India Pvt. Ltd.\, Pune (2017 - 2019). He received his B.E. (Hons) in Mec
 hanical Engineering from BITS Pilani\, Goa Campus in 2017.\n\n\n\nHost Fac
 ulty: Dr. Konduri Aditya\n\n\n\nAll are welcome
CATEGORIES:Events,Talks
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