20840034 - ENVIRONMENTAL TECHNICAL PHYSICS

The aim of the course will be to provide the student with the skills and tools needed to evaluate the amount of heat exchange and the environmental energy balance for cooling applications of electronic systems and in the insulation and thermal management of buildings.
Particular attention will be paid to analyzing heat flows and propagation methods in an electronic system, a building or a territory. The aim will be to monitor and evaluate thermal and energy efficiency to identify waste and inefficiencies and identify improvement interventions and contribute to environmental protection.
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Programme

Overview and introduction on the nature of heat.
Heat and temperature. Heat capacity. Specific heat.
Heat Conduction: thermal fields, thermal conduction phenomena.
Fourier: postulate and equation in Cartesian and cylindrical coordinate systems.
Examples of analytical solutions
Flat, single and multi, layer steady-state conduction.
Cylindrical layer. Critical radius of insulation.
Stabilized periodic regime.
Semi-infinite layer with step temperature changes
Radiation Heat Transfer: overview about electromagnetic radiation.
Properties of bodies as receivers and as emitters of radiation
Black body emission laws.
Gray bodies, selective bodies, cavities.
View factors. Radiation shields.
Greenhouse effect and environmental energy balance
Convection Heat Transfer
Fluid motion between layers at different temperatures.
Boundary layer. Laminar and turbulent fluid motion.
Natural and forced convection.
Dimensional analysis and method of indices.
Dimensionless parameters and their physical meaning.
Heating and cooling of an homogeneous body.
Insulation and thermal management of buildings
Heat sinks. Examples of heat transfer in electronic systems.

Core Documentation

Barducci, I., Trasmissione del calore, Editoriale Esa, Milano, 1989.
Badaglicca, A., Fondamenti di trasmissione del calore, Aracne, Roma, 1997.
more
Cengel, Y. A., Termodinamica e trasmissione del calore, Mcgraw-Hill, Milano, 2nd Ed., 2005.
Kreith, F., Principi di trasmissione del calore, Liguori Editore, Napoli, 1975.

Reference Bibliography

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Attendance

attendance is not mandatory, it is recommended

Type of evaluation

Written text