Scheda insegnamento (lingua inglese)

Stampato il 19.05.2024 ore 15:27

Title

Fisica tecnica I modulo
Applied Thermodynamics and Heat Transfer - 1st module

Degree

Corso di Laurea in Ingegneria Meccanica (PN) (DM 270/04)

Year

2

Teaching Period

2

Credits

6

Teacher:   Stefano Savino Academic year:   2012/2013

Objectives: Requirements: Acquired skills:
Lectures and exercises hours
Topics Specific contents  
Systems of measuring units.   International System of Units (SI), with particular reference to the definition of the temperature scale.
1
Thermodynamic systems.   Properties, states, processes, mass conservation and mechanical energy balances for control mass and control volume systems.
6
First law of thermodynamics.   Formulation for control mass and control volume systems. Thermal efficiency of power cycles and coefficient of performance of refrigeration and heat pump cycles. Internal energy, enthalpy and specific heat capacities.
5
Second law of thermodynamics.   Formulation. Reversible and irreversible processes. Carnot cycle. Thermodynamic temperature. Entropy definition. Entropy ecaluation for solid and liquid media. Clausius inequality.
4
Ideal gases.   Equation of state. Specific heat capacities. Evaluation of internal energy, enthalpy and entropy. Constant volume, constant pressure, constant temperature, isoentropic and polytropic processes.
5
Energy and entropy balances.   Technical applications of first law (energy) and second law (entropy) balances to control mass and control volume systems.
5
Vapours, real gases and gas mixtures.   Diagrams (p,T), (p,v), (T,s) and (p,h). Clausius Clapeyron equation. Cmpressibility factor. Equations of state for real gases. Gas mixtures.
8
Psychrometry.   Properties and processes of interest for psychrometric systems. Psychrometric chart.
7
Combustion processes.   Theoretical and excess air. Energy balances and heating values. Temperature of combustion products. Thermal efficiency of boilers, combustion chambers and power plants.
3
Power cycles.   Air standard cycles: Joule, Otto, Diesel and dual. Superheat water-vapour Rankine cycle.
7
Refrigeration and heat pump cycles.   Vapour-compression for refrigeration and heat pump systems.
6
Elementary analysis of compressible flows.   Speed of sound. Mach number. Isoentropic flows in nozzles and diffusers.
2
Seminar.   Computer-aided simulations of thermodynamic cycles.
1
 Total hours for lectures and exercises 60 
 for exercises only 16 
Further educational activities
hours
  Labs  
  Tutorials / Seminars  
  Workshops  
  Guided tours  
   
 Total hours for further educational activities 0 
 Total hours
60 

Type of exam: Written and oral

References: Additional material or information on line http:// materialedidattico.uniud.it/


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