What Every Energy Engineer Needs to Know about Thermodynamics and Liquefication Systems - Part 2

In What Every Energy Engineer Needs to Know About Liquefied Natural Gas Safety, you'll learn ...

• How to use thermodynamic software instead of charts for performing thermodynamic analyses
• Application of the software for solving liquefying mixtures of natural gas
• Understanding how thermodynamic software can show deviations from ideal gas solutions
• Applying thermodynamic software to plant operations, such as analysis of in-tank and external LNG pumps

Overview

Preview a portion of this course before purchasing it.

Credit: 7 PDH

Length: 139 pages

This course is the second in a 4-course series.

• Part 1 is based on understanding thermodynamic concepts and using pressure enthalpy charts.
• Part 2 builds onto part 1 but uses thermodynamic software instead of pressure enthalpy charts for analysis and goes into additional depth.
• Part 3 (consisting of Parts 3A and 3B) builds on parts 1 and 2 to apply thermodynamics to understand air conditioning and refrigeration systems from ¼ hp size units to 300,000 hp size units. Part 3A focuses on pure substances and mixed refrigerant liquefaction systems. Part 3B focuses on nitrogen expansion liquefaction systems.

Note that each course in the series is a “stand alone” course. It is not necessary to first complete Parts 1 and 2 in order to study Parts 3A & 3B, provided the learner already possesses the prerequisite knowledge needed.

This course (Part 2) introduces the learner to using thermodynamic software instead of charts for performing thermodynamic analyses. Such software is much more time efficient, accurate and flexible. Thermodynamic software allows the learner to dive deeper into their understanding of the field of thermodynamics. In this part, we will build on the learning of Part 1 and expand our ability to deal with mixtures rather than solely the pure fluid of methane.

In Part 2, a major focus is made on broadening the scope of understanding thermodynamics. Pump and compressor efficiencies and understanding many facets of thermodynamics that would not be adequately explained without using thermodynamic software are explained.

Specific Knowledge or Skill Obtained

This course teaches the following specific knowledge and skills:

• How to use thermodynamic software
• This will include solving many problems, some like those from part 1
• Application of the software for solving liquefying mixtures of natural gas
• Understanding how thermodynamic software can show deviations from ideal gas solutions
• Applying thermodynamic software to plant operations including:
• Analysis of in-tank and external LNG pumps
• Producing graphs such as Tx diagrams for binary mixtures and Ph diagrams for multi-component mixtures
• How and why recondensers work
• Determining the horsepower requirements and heat added to fluids of LNG pumps, compressors, and cold blowers
• The heat requirements of vaporizers
• Temperature and power requirement changes as LNG and/or BOG mixture composition changes are made (e.g., nitrogen in BOG vs. pure methane in BOG)
• An in-depth understanding of three stratification modes resulting in LNG rollovers
• Reinforcement exercises including analysis of:
• Positive displacement compressors
• BOG compressors with varied inlet pressures
• Boiler feed water pumps
• Recondensers
• Flash output compositions
• What happens when two fluids are mixed
• Velocities downstream of a JT valve
• Pressure and temperature changes downstream of a compressor due to fluid mixture composition changes
• Relationship between height of liquid in LNG tank and BOG production.
• BOG produced due to a change of LNG tank pressure.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 45 questions. PDH credits are not awarded until the course is completed and quiz is passed.