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Theory and Applications in Thermal and Cold Plasma

Prof. Srikumar Ghorui · IITB-HBNI

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About

Thermal and non-thermal plasmas are gaining immense importance in recent time due to its wide spread use in numerous industrial applications. While the fundamental physics remains the same, newer plasma devices and novel plasma generation techniques are becoming more and more important to meet the stringent requirements of the challenging application areas. The course offers an in-depth understanding of the device physics, process chemistry and plasma diagnosis that forms a key factor in any successful development. With a crisp theoretical understanding at the beginning, the course deals with device physics and process chemistries in plasma at length. Together with a detail understanding of the plasma generation and thermo-physical properties, most of the important diagnostic techniques of industrial plasmas are covered next. The course ends with a comprehensive understanding of some of the advanced technological applications in recent time.

Intended audience: M.Sc., Ph. D. and Post Doctoral Students and Researchers, Hospital Doctors and Staff and Industry People and Defence Personnel

Prerequisites: B.Sc in Physics or B.E/B. Tech in Mechanical/Electrical/Chemical Engineering, The course is a stand-alone course for a thorough understanding of different types of industrial processing plasmas and their wide range of interesting applications.

Lectures

Week 1

  1. Lecture 0 : Introduction YouTube
  2. Lecture 1A: Fundamentals of Thermal and Cold Plasma YouTube
  3. Lecture 1B: Theory and Applications in Thermal and Cold Plasma YouTube
  4. Lecture 2A: Theory and Applications in Thermal and Cold Plasma YouTube
  5. Lecture 2B: Saha Ionization Equation & That Follows YouTube
  6. Tutorial-1: Theory and Applications in Thermal and Cold Plasma YouTube

Week 2

  1. Lecture 3A: Plasma Screening YouTube
  2. Lecture 3B: Propagation of EM Waves in Plasma: YouTube
  3. Lecture 4A: Further Details on The Basics of EM Waves in Plasma YouTube
  4. Lecture 4B: Collisions in Plasma: Plasma Temperature & Equilibria YouTube
  5. Tutorial-2: Plasma Physics Fundamentals YouTube

Week 3

  1. Lecture 5A: Large Angle & Small Angle Scattering in Plasma YouTube
  2. Lecture 5B: Small Angle Scattering in Plasma YouTube
  3. Lecture 6A: Ambipolar Diffusion in Plasma YouTube
  4. Lecture 6B: Description of Plasma Kinetics: Orbit Theory, Kinetic Theory & Fluid Model YouTube
  5. Tutorial-3: Understanding Ionization, Gas Behavior, and Maxwell-Boltzmann Distribution YouTube

Week 4

  1. Lecture 7A: Description of Plasma Kinetics: Orbit Theory YouTube
  2. Lecture 7B: Description of Plasma Kinetics: Orbit Theory-Plasma Confinement YouTube
  3. Lecture 8A: Description of Plasma Kinetics: Plasma Kinetic Theory YouTube
  4. Lecture 8B: Description of Plasma Kinetics: Electrostatic Waves in Plasma YouTube
  5. Tutorial-4: Gas Ionization and Breakdown Mechanisms YouTube
  6. Review of Key Concepts: Week 1-3 (Part-A) YouTube
  7. Review of Key Concepts: Week 1-3 (Part-B) YouTube

Week 5

  1. Lecture 9A: Description of Plasma Kinetics: Langmuir Wave YouTube
  2. Lecture 9B: Plasma Fluid Model YouTube
  3. Lecture 10A: Some More Insights on High Frequency Electrostatic Waves in Plasma YouTube
  4. Lecture 10B: Further Insights into Dispersion Relation YouTube
  5. Tutorial-5: Plasma Kinetics, Thermodynamics & Excitation in Plasma YouTube

Week 6

  1. Lecture 11A: First Order Moment of Plasma Kinetic Equation YouTube
  2. Lecture 11B: Generalized Ohms Law YouTube
  3. Lecture 12A: Expression for Generalized Ohms Law & Reduction to Ordinary Ohm’s Law YouTube
  4. Lecture 12B: Energy Conservation Equation YouTube
  5. Tutorial-6: Plasma Devices, Characteristics & Plasma Parameters YouTube

Week 7

  1. Lecture 13A: Energy Conservation Equation: Solution technique YouTube
  2. Lecture 13B: Navier Stokes Equation in Plasma YouTube
  3. Lecture 14A: Numerical Solution of Fluid Equations: Thermodynamic and transport properties, an example YouTube
  4. Lecture 14B: Finding Solution of Fluid Equations in a Plasma Torch: example of N2-O2 plasma YouTube
  5. Tutorial-7: Thermodynamic & Transport Properties in Plasma YouTube
  6. Review of Key Concepts: Week 4-6 (Part-A) YouTube
  7. Review of Key Concepts: Week 4-6 (Part-B) YouTube

Week 8

  1. Lecture 15A: Actual Solutions of Fluid Equations in a Plasma Torch YouTube
  2. Lecture 15B: Understanding the Solution of Fluid Equations in a Plasma Torch YouTube
  3. Lecture 16A: Understanding the Solution Results & Designing a Plasma Torch YouTube
  4. Lecture 16B: Designing Plasma Torches with Desired Electrothermal Efficiency & Jet Characteristics YouTube
  5. Tutorial-8: RF and Cold Plasma Devices YouTube

Week 9

  1. Lecture 17A: Features of Plasma Jets in Practice YouTube
  2. Lecture 17B: Plasma Production YouTube
  3. Lecture 18A: Paschen Break Down Criteria YouTube
  4. Lecture 18B: AC Breakdown YouTube
  5. Tutorial-9: Plasma Thermodynamics and Radiation equilibrium YouTube
  6. Review of Key Concepts: Week 7-9 (Part-A) YouTube
  7. Review of Key Concepts: Week 7-9 (Part-B) YouTube

Week 10

  1. Lecture 19A: Plasma Sources YouTube
  2. Lecture19B: Typical Configuration of Arc Devices & Special Features YouTube
  3. Lecture 20A: Plasma Power Supplies: Steady and Unsteady Operating Points, RF Thermal Plasma Sources YouTube
  4. Lecture 20B: RF plasma-Thermal Plasma Sources YouTube
  5. Lecture 21A: Non-Thermal Plasma Sources: Atmospheric pressure plasma jets (APPJ) YouTube
  6. Tutorial-10: Advanced Plasma Diagnostics YouTube

Week 11

  1. Lecture 21B: Non-Thermal Plasma Sources: ECR Plasma & Plasma Sheath YouTube
  2. Lecture 22A: Plasma Sheath-mathematical modelling YouTube
  3. Lecture 22B: Plasma Diagnostics YouTube
  4. Lecture 23A: Boltzmann Plot Technique YouTube
  5. Lecture 23B: Plasma Diagnosis: Finding number density YouTube
  6. Tutorial-11: Plasma Technology for Renewable Energy and Environment YouTube

Week 12

  1. Lecture 24A: Plasma Diagnosis: Langmuir Probe Principles YouTube
  2. Lecture 24B: Plasma Application YouTube
  3. Lecture 25A: Plasma Application: Waste Management Capacity, Efficacy & Empowerment, thermal plasma for material testing under extreme conditions YouTube
  4. Lecture 25B: Atmospheric Pressure Plasma Spray (APS), Plasma Metallurgy & Novel Materials YouTube
  5. Lecture 26A: Plasma Medicine & Plasma in Agriculture YouTube
  6. Tutorial-12: Plasma Technology for Industrial Applications: Options, Efficacy & Benefits YouTube
  7. Review of Key Concepts: Week 10-12 (Part-A) YouTube
  8. Review of Key Concepts: Week 10-12 (Part-B) YouTube

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IITB-HBNI
Department
Physics
Teacher
Prof. Srikumar Ghorui
Level
Graduate
Language
English
Subjects
Physics
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge. Coordinated by IIT Bombay.
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