Thermodynamics
Keywords |
Classification |
Keyword |
OFICIAL |
Technological Sciences (Chemical Engineering) |
Instance: 2009/2010 - 1S
Cycles of Study/Courses
Acronym |
No. of Students |
Study Plan |
Curricular Years |
Credits UCN |
Credits ECTS |
Contact hours |
Total Time |
MIEQ |
101 |
Syllabus |
2 |
- |
6,5 |
63 |
175,5 |
Teaching language
Portuguese
Objectives
1. Technical Knowledge: knowledge on engineering science, namely related to the concepts of classical thermodynamics, providing methodologies to calculate thermodynamic properties and energy balances for chemical processes.
2. Personal and Professional Skills: resolution of engineering exercises - development of skills to integrate previous concepts and knowledge.
Program
INTRODUCTION: Basic concepts. Law zero of thermodynamics.
THE FIRST LAW OF THERMODYNAMICS: Internal energy. Statement of the first law of thermodynamics. Concept of enthalpy. Heat capacities at constant volume and constant pressure. Calculations of heat and PV-work. Irreversible processes.
VOLUMETRIC PROPERTIES OF PURE FLUIDS: P-T and P-V diagrams. Virial equation of state. Compressibility factor. Cubic equations of state. Generalized correlations.
HEAT EFFECTS: heat capacities for gases, liquids and solids. Enthalpiy of Phase Change. Enthalpy of reaction.
ENERGETIC BALANCES: Heat balances in reaction processes.
THE SECOND LAW OF THERMODYNAMICS: Statement of the second law of thermodynamics. Carnot cycle. Carnot cycle for an ideal gas. Carnot cycle for refrigeration. The concept of entropy. Entropy for ideal gases - effect of pressure and temperature. The third law of thermodynamics.
THERMODYNAMIC PROPERTIES OF PURE FLUIDS: Property relations for homogeneous phases. Maxwell relations. General expressions for the calculation of enthalpy and entropy. Helmholtz and Gibbs functions. Residual properties. Calculation of residual properties using equations of state and generalized correlations.
COMPRESSORS AND TURBINES: reboilers and turbines isentropic efficiencies. Multistage compression. Reboilers. Reboiling operation and thermal efficiency.
POWER CYCLES AND REFRIGERATION. Different cycles for power production and refrigeration. Heat pumps.
Mandatory literature
Smith, J. M.;
Introduction to chemical engineering thermodynamics. ISBN: 007-124708-4
Felder, Richard M.;
Elementary principles of chemical processes. ISBN: 0-471-53478-1
Teaching methods and learning activities
1) Lectures to introduce the theory and solving some problems;
2) Lectures to solve and analyse proposed exercises;
3) Office-hours.
Evaluation Type
Distributed evaluation with final exam
Assessment Components
Description |
Type |
Time (hours) |
Weight (%) |
End date |
Attendance (estimated) |
Participação presencial |
58,50 |
|
|
|
Exame |
0,50 |
|
|
|
Total: |
- |
0,00 |
|
Eligibility for exams
Students must follow FEUP's regulations concerning attainment of frequency.
Calculation formula of final grade
The students may choose one of the two following criteria:
1) Distributed evaluation: mini tests during the semester, on dates to be scheduled (half an hour each) plus final exam.
2) Final exam.
Classification:
1) 30% Mini tests plus 70% final exam.
2) Final exam.
Examinations or Special Assignments
Not applicable.
Special assessment (TE, DA, ...)
Exam.
Classification improvement
Exam.