This learning is given in 3 parts. This is part 2.
- Part 1 was based on understanding thermodynamic concepts and the use of 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 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.
This Part 2 course
introduces the learner to the use of thermodynamic
software in lieu of using charts for performing thermodynamic analyses. The use
of such software is much more time efficient, accurate and flexible.
Thermodynamic software allows the learner to dive deeper in 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.
By the end of this course, the learner
should understand:
·
How to use thermodynamic
software
o
This will include solving many
problems, some like those from part 1
o
Application of the software for
solving liquefying mixtures of natural gas
o
Understanding how thermodynamic
software can show deviations from ideal gas solutions
·
Applying thermodynamic software
to plant operations including:
o
Analysis of in-tank and
external LNG pumps
o
Producing graphs such as Tx
diagrams for binary mixtures and Ph diagrams for multi-component mixtures
o
How and why recondensers work
o
Determining the horsepower
requirements and heat added to fluids of LNG pumps, compressors, and cold
blowers
o
The heat requirements of
vaporizers
o
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)
o
An in-depth understanding of
three stratification modes resulting in LNG rollovers
·
Reinforcement exercises
including analysis of:
o
Positive displacement
compressors
o
BOG compressors with varied
inlet pressures
o
Boiler feed water pumps
o
Recondensers
o
Flash output compositions
o
What happens when two fluids
are mixed
o
Velocities downstream of a JT
valve
o
Pressure and temperature
changes downstream of a compressor due to fluid mixture composition changes
o
Relationship between height of
liquid in LNG tank and BOG production.
o
BOG produced due to a change of
LNG tank pressure.
Download accompanying chart referenced in the course materials (PDF file)
