Università Roma Tre

Introduction

Units of Measures

1. HEAT TRANSFERS

1) Conduction
phenomenology of heat transfers; general information on thermal fields; Fourier postulated. Fourier's equation, in Cartesian and cylindrical coordinates, with and without internal heat development. Examples of exact solutions: flatbed and cylindrical layer steady. Sull'adduzione limit signs on faces. The similarity of insulating critical elettrica.Raggio. Example variable regime: periodic regime stabilized in a semi-infinite half

2) Convection
Definition. Natural convection and forced convection. Schematic of the phenomenon. Definition of the heat exchange coefficient. dimensional analysis. Buckingham theorem. Method of indexes. Determination of dimensional characteristics of heat transfer variables. Applications.

3) Irradiation
Kirchhoff's law. Planck's law, Stefan-Boltzmann and Wien. gray bodies. Applications.

4) Complex Phenomena
Heat transfer by adduction. Applications.


2. Applied Thermodynamics

1) Thermodynamic systems
Thermodynamics principles. Temperature. thermodynamic equilibrium. Work in a closed system. Temperature concept.

2) First law
Conversion and energy transformation: the formulation of the first principle. internal energy. Specific heat.

3) Second law
Statements of the second law. Carnot cycle. Carnot's theorem. Thermodynamic temperature scale. Entropy. Reversible and irreversible transformation.

4) Thermodynamics Air
gaseous mixtures. moist air. Absolute and relative humidity. dew point temperature. Enthalpy associated. Mollier diagram. moist air transformation. Psychrometer.
energy exchanges between man and environment. thermal comfort. wellness equations. Thermal comfort indices: actual temperature, PMV, PPD.



3. APPLIED ACOUSTICS AND LIGHTING

1) Definition fundamental physical quantities. Characterization of the stimulus.

2) The psychophysical quantities.

3) Applications and Technology about the Sea Engineering : description of the used instrumentation and measurement methodologies, Design principles.

1. Yunus A. Çengel, “Termodinamica e trasmissione del calore”, McGraw-Hill Education (testo base in versione completa con compendio di Acustica ed Illuminotecnica)
2. Michael Moran et al., “Elementi di Fisica Tecnica per l’Ingegneria”, McGraw-Hill (per consultazione ed approfondimento)
3. Lecture Notes