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Politecnico di Torino
Academic Year 2017/18
10AXYMC, 10AXYMH
Thermodynamics and Heat Transfer for Engineers
1st degree and Bachelor-level of the Bologna process in Civil Engineering - Torino
1st degree and Bachelor-level of the Bologna process in Building Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Corrado Vincenzo ORARIO RICEVIMENTO O2 ING-IND/11 48 32 0 0 9
Perino Marco ORARIO RICEVIMENTO PO ING-IND/11 48 32 0 0 15
SSD CFU Activities Area context
ING-IND/11 8 C - Affini o integrative Attività formative affini o integrative
Subject fundamentals
The course aims at providing students with basic technical and scientific knowledge and at developing design skills in the fields of lighting, environmental and building acoustics, heat transfer and thermodynamics.
The educational objective is to provide students with:
- knowledge of sound and light environmental phenomena in relation to the human perception and to design.
- knowledge of energy and thermo-hygrometric environmental phenomena.
Expected learning outcomes
Knowledge of basic theoretical principles as well as of quantitative assessment tools and of the main reference data in the areas of lighting, environmental and building acoustics, heat transfer and thermodynamics. Ability to calculate mass and energy balances, rough estimation of visual and acoustic environment features.
Ability to develop rough design solutions, also optimized in terms of energy / environment, for the main physical-technical problems faced by today's professionals.
Prerequisites / Assumed knowledge
Fundamentals of physics, chemistry, mathematical analysis
Contents
Lighting elements: energy system and photometric system, visibility curve, daylight sources, daylight factor, artificial sources, energy-saving lamps, lighting fixtures, lighting efficiency, cost / benefit analysis, other characterization parameters. Design criteria for artificial lighting of interiors and exteriors.
Elements of acoustics: fundamental quantities, hearing mechanism, auditory sensations, normal audiogram. Sound absorption and sound insulation, absorption characteristics and acoustic attenuation of the materials. Calculation of the reverberation time in a closed environment (Sabine formula) and choice of its optimum value. Calculation of sound insulation between two adjacent enclosed spaces. Design criteria for architectural acoustics interventions. Noise rating, equivalent level and weighting curves.
Fundamentals of thermodynamics: conservation equations. Reversible thermodynamic transformations and not, work and heat. The first law of thermodynamics for closed and open systems. Internal energy and enthalpy. II Law of Thermodynamics. Entropy. Diagram of the phases, liquid and vapour, ideal gases. Thermal machines in direct and reverse cycle. Concept of efficiency.
Psychrometry: moist air properties. Mollier diagram for moist air. Reference transformations for air hygrothermal parameters control. Outline of the system types for building air-conditioning.
Elements of heat transfer: conduction. Forced and natural convection. Radiation, black body, heat exchange by radiation between blacks and grey bodies. Radiative properties of the glass. Thermal transmittance and the calculation of the temperature profile in a flat multilayer wall. Thermal exchanges in the presence of solar radiation, sol-air temperature. Thermal transients in lumped capacity. Notes on the heat and mass balance of a building, sensible / latent loads.
Vapour diffusion in building structures: Fick's law, superficial and interstitial condensation. Diagram of Glaser.
Delivery modes

Teaching is organised in theoretical lectures and exercises, aimed at applying the learned knowledge through numerical exercises.
The exercises will cover applications of the theoretical knowledge to the solution of real problems, with particular attention to energy / environmental implications of the solutions developed. They will be carried out by:
• numerical exercises in the classroom regarding the applications of theoretical concepts introduced in lectures,
• development of rough design calculations (term papers), respectively on:
- lighting systems for outdoors;
- measures for realising acoustic comfort conditions in a conference room;
- optimization of building energy consumption by means of measures on the building opaque / transparent envelope.
Texts, readings, handouts and other learning resources

• Corrado V., Fabrizio E., Fondamenti di Termofisica dell’Edificio e Climatizzazione, II edition, CLUT, Torino, 2014.
• G.V. Fracastoro, Fisica Tecnica Ambientale, Otto editore, Torino, 2003.
• Corrado V., Fabrizio E., Applicazioni di Termofisica dell’Edificio e Climatizzazione, CLUT, Torino, 2009.
• Astolfi A., Corrado V., Applicazioni di Illuminazione e Acustica, CELID, Torino, 2012.
• material provided by the lecturers.

To depth the subjects, the following texts can be consulted, if necessary:
• Introduction to thermodynamics and heat transfer – Yunus A. Cengel– publ. McGraw Hill.
Assessment and grading criteria
The exam booking on internet is mandatory.
The exam consists of a written test and an optional oral examination.
The written test is divided into two parts according to the following schedule:
a) a theory test consists of statements of the true / false and / or synthetic definitions,
b) 4 numerical exercises (1 exercise on thermodynamics, 1 exercise on heat transfer, 1 exercise on acoustics, 1 exercise on lighting).
The oral examination is optional (by renouncing to the oral examination the maximum possible rating is 24/30). For admission to the oral examination you must have passed the written test with a minimum overall grade of 15/30. The oral examination is done immediately after the written test.
Notes

The proposed exercises require the use of scientific calculators (logarithms, raising to a power, trigonometry ...). The lectures follow the recommended reference texts.
Photocopies of graphs and charts for the exercises are provided by the lecturers.
The basic and the supplementary teaching materials, the presentation of the course and examination rules are available on the teaching web portal under the heading "Material of the course".

Programma definitivo per l'A.A.2017/18
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