Form 20
Version 3.0 (2007/2008)
Heriot-Watt University - Module Descriptor Template (RAY)
Module Title
Multiphase Thermodynamics
School
Engineering and Physical Sciences
Module
Co-ordinator
3rd Year Director of Studies
SCQF
Level
9
1. Pre-requisites
Module
Code
Semester
B49CE
2
On or OffCampus
ON
Credits
15
B48BB Process Engineering A
2. Linked Modules
(specify if synoptic)
3. Excluded Modules
4. Replacement Module
Code:
5.
Availability as an
Elective
Yes
No
X
Date Of Replacement:
6. Degrees for which this
is a core module
All BEng and MEng Chemical Engineering Degrees
7. Aims
The aim of this module is to develop and use chemical process thermodynamics tools to describe multi-phase, multi-component equilibria for reacting and non-reacting
systems. The mathematical formalisms for compressible flow of fluids are also developed. Students will be able to construct simple phase diagrams from experimental
data for a range of system types. They will also be able to determine the composition of phases for a multiphase system and the total amount of each phase.
8. Syllabus
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Equations of state for non-ideal systems – virial equations, vdW, Peng-Robinson, Redlich-Kwong.
Gibbs energy as a generating function.
Description of phase equilibria for pure materials, binary and multi-component systems.
Physical equilibrium: criteria for equilibrium; Gibbs energy, chemical potential and fugacity; evaluation of fugacity. Comparison of pure and partial quantities;
Lewis Randall Rule, Raoult's Law and rigorous phase equilibrium equation. Phase equilibrium ratio (K); evaluation; De Priester charts; bubble, dew and flash
calculations.
Activity coefficients: ideal systems; property changes on mixing; activity; activity coefficient; evaluation and use of activity coefficient.
Partial miscibility: completely miscible systems. Partially miscible systems: description and quantitative treatment. Fully immiscible systems: description and
quantitative treatment.
Chemical equilibrium: stoichiometric numbers and reaction co-ordinate; criteria for equilibrium; chemical equilibrium ratio (K) and standard Gibbs free energy of
reaction. Effect of temperature and pressure on chemical equilibrium; evaluation of K; calculation of equilibrium conversion.
Compressible flow: flow through nozzles; converging-diverging nozzles; maximum flow conditions; flow in a pipe.
Form 20
Version 3.0 (2007/2008)
Heriot-Watt University - Module Descriptor Template (RAY)
Module Title
Multiphase Thermodynamics
School
Engineering and Physical Sciences
Module
Co-ordinator
3rd Year Director of Studies
SCQF
Level
9
Module
Code
Semester
B49CE
2
On or OffCampus
Credits
ON
15
9. Learning Outcomes (HWU Core Skills: Employability and Professional Career Readiness)
Subject Mastery
Understanding, Knowledge and Cognitive Skills
Scholarship, Enquiry and Research (Research-Informed Learning)
Students will be able to:
 Demonstrate the application of the syllabus to chemical engineering problems.
 Use directed reading to enquire, research core material.
 Choose an appropriate method to solve problems.
Personal Abilities
Industrial, Commercial & Professional Practice
Autonomy, Accountability & Working with Others
Students will develop and enhance skills through the following:
 Development of tools for equations of state (ICT).
 Presentation of tutorial solutions as group projects.
 Use of suite of computer programs to solve problems.
10. Assessment Methods
Method
Examination
Coursework
Communication, Numeracy & ICT
11. Re-assessment Methods
Duration of Exam
(if applicable)
2 hours
Weighting (%)
Synoptic modules?
Method
Duration of Exam
(if applicable)
70%
30%
Examination
Coursework
2 hours
12. Date and Version
Date of Proposal
28 Feb 2008
Date of Approval by
School Committee
Date of
Implementation
Version
Number
1.0