Thermodynamics and Fluids

Scholar Year: 2019/2020 - 1S

Courses

Head Teacher Responsability Paulo Rodrigues Madeira Costa Head

Weekly workload Hours/week T TP P PL L TC THE EL OT OT/PL TPL S Type of classes 4 Lectures Type Teacher Classes Hours Theorethical and Practical classes Totals 2 8,00 Madeira Costa   4,00

Teaching language

Portuguese

Intended learning outcomes (Knowledges, skills and competencies to be developed by the students)

Identify equipment that uses energy and fluids, their functions and operating parameters.
Acting towards a sustainable use of Energy.
Measure pressures and flows. Calculate head losses and select pumps.

Syllabus

• T E R M O D Y N A M I C S

0. ENERGY ECONOMICS
A. General Aspects of Energy Use
B. Economic Growth and Energy Demand
C. Need for Rational Use of Energy and Renewable Energy Sources

Part I - CONCEPTS OF THERMODYNAMICS
I. FUNDAMENTAL CONCEPTS
II. THE 1st LAW OF THERMODYNAMICS
A. 1st LAW
B. CLOSED SYSTEMS
C. OPEN SYSTEMS
III. THE 2nd LAW OF THERMODYNAMICS
A. THE SECOND LAW AND THE CLAUSIUS FORMULATION
B. COROLLARS OF THE 2nd LAW

Part II - APPLICATIONS FOR PARTICULAR FLUIDS
IV. PROPERTIES OF FLUIDS
V. APPLICATION TO SOME PROCESSES
A. PROCESSES IN CLOSED SYSTEMS
B. PROCESSES IN OPEN SYSTEMS
VI. REFERENCE TO SOME CYCLES
A. STEAM CYCLES FOR OBTAINING WORK
1. Carnot Cycle 2. Rankine Cycle
B. GAS CYCLES FOR OBTAINING WORK
1. Brayton Cycle (or Joule) 2. Otto and Diesel Cycle
C. REFRIGERATION CYCLES AND HEAT PUMP
1. Inverse Carnot Cycle 2. Vapor Compression Cycle 3. Absorption Cycle

• F L U I D M E C H A N I C S
0. INTRODUCTION
1. Concept of fluid 2. Properties of liquids
I. HYDROSTATIC
1. Hydrostatic pressure law 2. Absolute pressures and relative pressures 3. Manometers 4. Hydrostatic drive
II. HYDROCINEMATIC
1. Path and current line 2. Continuity equation
III. HYDRODYNAMICS
1. Bernoulli's theorem 2. Piezometric line and energy line 3. Pitot tube 4. Perfect liquids and real liquids. Boundary layer. Separation.
IV. GLOBAL STUDY OF LIQUIDS
1. Hydraulic power 2. Pumps and turbines
V. THEORY OF SIMILARITY. ADIMENTIONAL PARAMETERS
1. Reynolds number 2. Laminar and turbulent flow
VI. LAWS OF RESISTANCE OF UNIFORM FLOW
1. Flow in conduits. Calculation of pipelines 2. Laminar flow 3. Empirical laws for the turbulent regime 4. Singular losses

Teaching methodologies

Oriented rediscovery.
Problem solving.
Conducting laboratory tests with report writing and oral discussion.

2018/19
Student service hours:
- Friday, 2pm to 3pm, Gab. D-208;
- whenever necessary, in combination with the teacher;
- all the time, by email.

Assessment methodologies and evidences

Preferably CONTINUOUS, such as work and learning throughout the semester.
Distributed assessment with final exam.
Laboratory testing is mandatory; reports are delivered at the end of class. Repetition of previous tests is not required, if (Lab.i and Oral)> = 12, with a devaluation of 1 value / year.
During the normal examination period, up to one-third of the tests can be retrieved, if approval depends on that.
All components of the evaluation are subject to oral (eg: Laboratory; Grades> = 15)
In the tests, in the practical part, it is possible to use a "memory aid" of 1 pag. A5, handwritten by the student, original, delivered at the end of the exam; on the exam it can be 1 pag. A4.

Final grade = Test average x 0.8 + Lab. average x 0.2
c / Test average> = 10, Tests> = 9 and Laboratory average> = 10
or
Final grade = Exam x 0,8 + Lab.average x 0.2
w / Exam> = 10 and Lab.average=> 10

2018/19
Testing dates (4:30 p.m.):
- Te.1: Oct-25, Thursday;
- Te.2: Nov-29, Thursday;
- Te.3: Dec-20, Thursday.

Laboratory ORALS (~ 15 min./Group) can be performed on the following days, depending on the preferences of each group:
- before or after the normal Exam;
- before or after the second Exam;
-
They must send an e-mail (at least 1 day in advance) indicating the Group's preference.

Primary Bibliography

Secondary Bibliography