UCLA Extension

Fundamentals of Cryogenics

This is a comprehensive three-day course on the fundamentals of Cryogenics. The course is self-contained with lectures on properties of cryogenic material and cryogens, heat transfer and thermodynamics at low temperatures. An introduction to the applications of cryogenics is given with applications in cryopreservation, medical fields, transportation, energy related fields, aerospace / military and material processes. Special attention is given to safety in cryogenics. Cryogenic safety is completely alien to the normal experience of most people. It can help to prevent expensive design / material failures, physical injury and even death. The traditional topics of gas separation and liquefaction are covered in the course. Cryocoolers are classified and addressed in detail. The student is exposed to both solid state (thermoelectric, magnetic and optical coolers) as well as fluid type (Stirling, Pulse Tubes and Reverse Brayton cycles) cryocoolers. Instrumentation and the design of cryogenic equipment is taught. Last but not least, introduction is given to superfluidity and superconductivity.

This course is for scientists, engineers, medical personnel, technicians, safety personnel and people that are involved in programs that make use of cryogenic fluids in any capacity, as well as any persons entering into the field of cryogenics. People who would like to learn the special theories of superfluidity and superconductivity are also encouraged to take this course.

Coordinator and Lecturer

Sidney Yuan, PhD, Sr. Engineering Specialist, The Aerospace Corporation, Los Angeles, California. Dr. Sidney Yuan is an internationally known expert in Cryogenics. His expertise include analysis, design and manufacture of cryostats, cryoradiators and mechanical cryocoolers. He has been teaching an undergraduate course at UCLA on Cryogenics since 2003. Dr. Yuan co-authored a book on Cryogenics- Low Temperature Engineering and Applied Sciences. He is the Editor of “Space Cryogenics Workshop Proceedings”, 2010. Guest Editor, of Cryogenics Journal, Elsevier, Volume 50, September 2010 and Technical Editor of Proceedings of Advances in Cryogenics Engineering, 2011. He has over 60 publications with more than 55 scientific papers. Dr. Yuan has three patents and six pending patents in Cryogenics. Dr. Yuan is a Sr. Engineering Specialist at The Aerospace Corporation. He was the Technical Director of Raytheon’s Space Cryocooler Division and the Chief Scientist for L3 Com (previously known as BEI Electronics) Tactical Cryocooler Division.

Dr. Sidney Yuan is an internationally known expert in Cryogenics. His expertise include analysis, design and manufacture of cryostats, cryoradiators and mechanical cryocoolers. He has been teaching an undergraduate course at UCLA on Cryogenics since 2003. Dr. Yuan co-authored a book on Cryogenics- Low Temperature Engineering and Applied Sciences. He is the Editor of “Space Cryogenics Workshop Proceedings”, 2010. Guest Editor, of Cryogenics Journal, Elsevier, Volume 50, September 2010 and Technical Editor of Proceedings of Advances in Cryogenics Engineering, 2011-present. He has over 60 publications with more than 55 scientific papers. He has three patents and six pending patents in Cryogenics. Dr. Yuan is a Sr. Engineering Specialist at The Aerospace Corporation. He was the Technical Director of Raytheon’s Space Cryocooler Division, and the Chief Scientist for L3 Com (previously known as BEI Electronics) Tactical Cryocooler Division.

Daily Schedule

Day 1

  • Introduction
  • Applications of Cryogenics
  • Safety in Cryogenics
  • Properties of Cryogenic Materials and Cryogens

Day 2

  • Heat Transfer and Thermodynamics at Low Temperatures
  • Gas Separation & Liquefaction
  • Mechanical (AC and DC types) and Solid State Cryocoolers

Day 3

  • Cryogenic Instrumentation and Equipment (including Insulation)
  • Vacuum Technology
  • Superfluidity and Superconductivity

For more information contact the Short Course Program Office:
shortcourses@uclaextension.edu | (310) 825-3344 | fax (310) 206-2815

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