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Fisica Tecnica (MECC) (A/L)
Engineering Physics
Fabio Polonara

Seat Ingegneria
A.A. 2015/2016
Credits 9
Hours 72
Period I
Language ENG

Prerequisites
Basic knowledge of Calculus, Mechanics, Electricity and Magnetism.

Learning outcomes
This course aims at giving students the basic knowledge of Applied thermodynamics and Heat transfer.Its goal is to allow the student to perform first law analyses on components and on systems operating on direct and reverse thermodynamic cycles.Its goal is also to allow the student to perform heat transfer analyses on simple systems operating at steady state with the method of thermal resistance

Program
Introduction to thermodynamics. Basics of thermometry. State thermodynamics. Thermodynamics charts. Vapours, ideal gas, incompressible substances. First law of thermodynamics for closed and open systems. Application of first law to simple system components. Second law of thermodynamics. Clausius and Kelvin postulates. Direct and reverse thermodynamic cycles. Direct and reverse Carnot cycle. Entropy. Vapour and gas direct thermodynamic cycles. Vapour compression reverse thermodynamic cycle. Psycrometrics. Heat transfer mechanisms. Steady state conduction. Electric analogy and resistive model. Thermal convection. Flow regimes. Dimensionless numbers and correlations for practical use. Thermal radiation. Black-body and real-surfaces radiation. Heat transfer between black bodies, grey bodies within cavities. Heat transfer combined mechanisms. Walls transmittance. Enhanced heat transfer. Heat Exchangers.

Development of the examination
LEARNING EVALUATION METHODS
The assessment of the learning level consists of a written test divided into two parts: in the first part, the student must solve 4 numerical exercises relating to technological applications that have been discussed in class. In the second part, the student must answer 4 questions on theoretical topics chosen from among those discussed in class. The time available for the written test as a whole is 120 minutes. After the written exam, the student who has obtained a mark (sufficient or insufficient) may apply to the oral exam in which the topics covered in class will be discussed.

LEARNING EVALUATION CRITERIA
To successfully pass the exam, the student must demonstrate, through the tests described above, to have assimilated the concepts contained in the syllabus and to be able to properly solve numerical exercises related to technological applications learned during the course.

LEARNING MEASUREMENT CRITERIA
The 4 numerical exercises are evaluated with a maximum total score of 60 points out of 100 (each exercise is given a maximum score of between 10 and 20 points, with a total of 60). The 4 theoretical questions are evaluated with a maximum total score of 40

FINAL MARK ALLOCATION CRITERIA
The vote in hundredths obtained by adding the vote gained in any exercise and theoretical question is converted in thirthyeths. To proceed to the oral exam (in the same session or in a later session) a minimum score of 14/30 is required. The ”Lode” is given to those who, in addition to achieving the maximum score on the written test, demonstrate to master very well the subject.

Recommended reading
Y. Cengel, Termodinamica e trasmissione del calore, McGraw-Hill Italia, Milano, 2009

Courses

• Ingegneria Meccanica (Corso di Laurea Triennale (DM 270/04))