FUNDAMENTALS OF PHYSICS AND MACHINERY

12 CFU - 2° Semester

MARIA LETIZIA SERGI - Module FISICA - FIS/01 - 6 CFU
EMANUELE CERRUTO - Module Mechanics and Machinery - AGR/09 - 6 CFU

Learning Objectives

Mechanics and Machinery
To give the students the basic knowledge of applied mechanics and of the main machinery present in the agro industrial sector, useful for a proper management of the processes. To emphasize the engineering approach to the discipline, accustoming the students towards a critical evaluation of the numerical results. At the end of the course students will know the essential parameters (power, efficiency, elements for designing) of the main machines of interest in the agri-food sector (heat exchangers, pumps, refrigeration machines, internal combustion engines), as well as the main basic processes for the continuation of studies in the field of food technologies (heat transmission, thermodynamics of ideal gases, moist air thermodynamics).

Mechanics and Machinery
Teaching is done through lectures and guided exercises to solve problems of practical interest in the sector of food engineering.

Mechanics and Machinery
Fundamentals of mechanics: International System of Units (SI); forces applied to the machines; mechanical work; friction: sources and remedies; efficiency; basics on power transmission systems.

Applied thermodynamics (thermodynamic system, first and second law of thermodynamic, thermodynamic diagrams); heat transmission in steady state condition (conduction, convection, radiation); gases and vapours (quality, use of table of water vapour); moist air properties (humidity, enthalpy, psychrometric charts).

Basic machinery in agro industrial plants: heat exchanger (equi- and counter-flow, sizing), pumps (positive displacement pumps, centrifugal pumps, power pump calculation), compressors, centrifugal separators and extractors, main electrical machines, Otto and Diesel internal combustion engines, refrigeration cycles.

Mechanics and Machinery
1. Anzalone G., Bassignana P., Brafa Musicoro G., Fondamenti di meccanica e macchine, Hoepli.

2. Çengel Y., Termodinamica e trasmissione del calore, Mc GrawHill.

3. Teaching material provided during lectures

Open in PDF format Versione in italiano