TECHNICAL SYSTEMS

TECHNICAL SYSTEMS

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iten
Code
66367
ACADEMIC YEAR
2017/2018
CREDITS
6 credits during the 2nd year of 9270 Mechanical Engineering - Energy and Aeronautics (LM-33) GENOVA
SCIENTIFIC DISCIPLINARY SECTOR
ING-IND/10
LANGUAGE
Italian
TEACHING LOCATION
GENOVA (Mechanical Engineering - Energy and Aeronautics)
semester
2° Semester
modules
This unit is a module of:

AIMS AND CONTENT

LEARNING OUTCOMES

The course introduces the fundamental elements for the knowledge climatization and heating plants and the correct planning of the same, referrring with to the technical-economic aspects too.

Teaching methods

Operating Skills

Analyses of the energetic problems. Evaluation of the performances of the heating and cooling plants. Calculations of thermal exchange / insulation and psycrometric evaluations. Basic Planning of  the technical Plants. Elementary calculations of lighting and applied acoustics

SYLLABUS/CONTENT

Essential Contents: Psycrometric and environmental comfort: studies of Fanger; Condensation in buildings elements; Vapor diffusion, superficial Condensation; Interstitial condensation: theory of Glaser; barriers to  vapor. Climatization plants : Summer and Winter conditioning; Traditional plants of heating, Motion of the fluids in the ducts, monodimensional analysis; Chimney in natural and forced circulation; Coupling pumps to circuit; Plants of heating, stand alone and common, main sections of plants.  Energetic and economic comparison between PDC and traditional boilers; condensation boilers. Plants of direct water: Planning of plants of drinkable water in pressure for buildings. Energetic saving and renewable energies: Norms for the containment of the energetic waste in buildings: Law 10/91 and working decrees   Dlvo 192/05; UNI 11300 -1 need of the building; UNI 11300 - 2  efficiency plants of heating and hot Water; Determination of the winter primary energy of a building; Incoming solar energy; thermal solar plants: plants for integration of the heating / production sanitary warm water with technologies that make use of solar.  solar photovoltaic plants: principle of operation of the photovoltaic and efficiency; Eolic plants: theory of Betz  Electric plants basic: Impedances (R, L, C) and simple circuits; transformations star-triangle, Laws of Kirchoff; Fall of tension in head to a conductor; active power, reactive, apparent; The electric (asyncronous engine) engine, the rotating magnetic field, how engine works, startup; Law 37/08. determination of the current of breakdown and determination of the ground resistance ; grounding plants, differential protections and magnetotermic; Lightning-protection systems (LPS): verification of autoprotect volume; planning of the LPS point type  or cage type. Illumination Plants:  Introduction; the sources of artificial light; Fundamental metrics: bright intensity, lighting, luminance, flow, photometric Solid. Lighting with  a puntiform source point; Sizing plants of inside illumination. Method of the factor of use. Environmental acoustics: Sonorous levels of intensity, power and pressure; referring values, Basic acoustics,  phon, dB, dBA. Sum and subtraction of sonorous levels; propagation of the sound in free field, geometric divergence; Field reflecting method of the source image; Reverberated and semiriverberated field, time of reverberation, concepts of phono absorption; Acoustic correction of a room, optimal time of reverberation L 447/95 acoustic Classification of the territory, evaluations of environmental impact

RECOMMENDED READING/BIBLIOGRAPHY

Autore/i, Titolo, Editore, anno;

M. J. Moran, N. H. Shapiro “Fundamental of Engineering Thermodynamics”, John Wiley & sons, Inc.1988

Yunus A. Cengel: “Termodinamica e trasmissione del Calore”, Mc Graw Hill, 2005

C. Pisoni, G. Guglielmini “ Introduzione alla  Trasmissione del Calore” Ed. CEA, 2001.

F. Arecco,P.Cavalletti “ Efficienza e certificazione energetica degli edifici” IPSOA 2010

TEACHERS AND EXAM BOARD

Ricevimento: appointment: annalisa.marchitto@unige.it

Ricevimento: appointment: mario.misale@unige.it

Exam Board

MARIO MISALE (President)

ANNALISA MARCHITTO (President)

GIOVANNI TANDA

ANTONELLA PRIARONE

FRANCESCO DEVIA

DAVIDE BORELLI

LESSONS

Teaching methods

Operating Skills

Analyses of the energetic problems. Evaluation of the performances of the heating and cooling plants. Calculations of thermal exchange / insulation and psycrometric evaluations. Basic Planning of  the technical Plants. Elementary calculations of lighting and applied acoustics

EXAMS

Exam description

The exam consists in a written and an oral test in which, for every  matter of the course, are  formulated questions or simple exercises

Assessment methods

The exam consists in an oral test in which, for every  matter of the course, are  formulated questions or simple exercises

FURTHER INFORMATION

Pre-requisites :

Students who have got at least 10 CFU are able to attempt  to pass the exam. No particular other exams  are requested in order to attempt  to pass the exam, anyhow you are advised to have passed the exames of Analisi matematica, Geometria e Fisica generale  before attempting  to pass this exam.