Units and Symbols.1. Introduction.2. Some Reminders about Cryogenics and
Others.3. Heat Exchangers for Cryogenic use, Reminders.4. Basic Cycles
for Helium Refrigeration and Liquefaction.5. Special Cycles for Helium
Refrigeration and Liquefaction.6. Technology of the helium Refrigeration
Components.7. Helium.8. Introduction to off-design Operation.9. Process
control.10. Operating Modes of a Helium Refrigeration Plant.11.
Operation and Maintenance of a Helium Plant.12. A Few Examples of
Existing Plants.13. A Helium Plant Specification.14. Commissioning
Tests.15. The Cryo Tool Box.16. Annex 1 Starting procedures for screw
compressors.17. Annex 2 More on ORS.18. Annex 3 Heat exchangers
operating in a horizontal position.19. Annex 4 Introduction to the
Grafcet language for the description of an automation procedure.20.
Terminology.