FISICA TECNICA A [Prof. Zazzini]
Introduction
Sistems of Units: fundamental and derived quantities, conversion factors, measurement of physical quantities, conversions between the various systems of units.
Thermodynamics
Open and closed thermodynamic systems, thermodynamic equilibrium, extensive and intensive properties, state and exchange quantities.
Zero principle of thermodynamics, definition of temperature.
Total energy and internal energy of a system, temperature, specific heat, thermal capacity of a thermodynamic system.
Mass and energy balances, I Principle of Thermodynamics for closed and open systems, enthalpy of a system, pressure-volume diagram, isobaric, isochoric, isothermal, adiabatic, polytropic transformations, calculation of work and heat in reversible processes.
II Principle of Thermodynamics: statements by Clausius and Kelvin-Planck, thermodynamic cycles, the direct and inverse Carnot cycle, thermal and refrigeration machines, heat pumps, thermodynamic cycles for the production of energy (Rankine cycle and Brayton cycle), entropy, temperature-entropy diagram.
Pure substances, state passages, properties of vapors and liquids, Gibbs or phase rule, pressure-temperature diagram, remarkable points, the triple point.
Ideal gases: I and II state law, internal energy and enthalpy of an ideal gas; thermodynamic transformations of ideal gases.
Humid air: thermodynamic properties, psychrometric diagram, sensitive heating and cooling transformations, humidification and dehumidification, adiabatic mixing; complete winter treatment, complete summer treatment, by-pass factor, dew point temperature, wet bulb and adiabatic saturation, the psychrometer.
Heat transmission
Fundamental mechanisms of heat exchange: conduction, convection and radiation;
Thermal conduction: Fourier postulate, thermal conductivity.
One-dimensional stationary regime: flat wall, cylindrical wall, conductance, resistance, temperature trend inside a flat wall and in the thickness of a hollow cylinder; composite structures: multilayer flat wall, series and parallel resistors, coaxial cylinders, critical thickness of the insulation.
Thermal bridges, linear coefficient.
Thermal convection: Newton's law, average convective heat transfer coefficient, natural convection and forced convection, laminar and turbulent motion, thermal and dynamic boundary layer, dimensionless groups of Nusselt, Reynolds, Prandtl, Grashof and Raleigh.
Thermal radiation:
Radiant energy, the black body, emissive power, emission laws of the black body (Planck, Stephan-Boltzmann and Wien), radiative heat exchange equations for black bodies, grey bodies, emissivity, radiative exchange equations for grey bodies , greenhouse effect; cavity heat exchange between black surfaces.
Combined heat exchange mechanisms for flat multilayer walls: thermal transmittance and thermal resistance of a wall, temperature trend inside a multilayer wall;
Surface condensation verification, internal condensation verification, Glaser method.
FISICA TECNICA B [Prof. Montelpare]
Acoustics
• Fundamentals of acoustics
• Decibel definitions
• Sound hearing
• Free field sound propagation
• Closed Rooms sound propagation
• Phono insulation and adsorption
• Acoustic assessment of closed environments
Lighting engineering
• Fundamentals of Illuminating engineering
• Artificial lighting
• Internal lighting
• Public lighting
