TECHNICAL PHYSICS
Stampa
Enrollment year
2020/2021
2021/2022
Regulations
DM270
ING-IND/10 (TECHNICAL PHYSICS)
Department
DEPARTMENT OF ELECTRICAL,COMPUTER AND BIOMEDICAL ENGINEERING
Course
INDUSTRIAL ENGINEERING
Curriculum
PERCORSO COMUNE
Year of study
Period
2nd semester (07/03/2022 - 17/06/2022)
ECTS
9
Lesson hours
90 lesson hours
Language
Italian
Activity type
WRITTEN AND ORAL TEST
Teacher
MAGRINI ANNA (titolare) - 3 ECTS
MAGRINI ANNA (titolare) - 6 ECTS
Prerequisites
Mathematics and physics
Learning outcomes
The course aims to introduce the cultural basis necessary to understand the fundamental principles of thermodynamics and the energy analysis of systems and the basics of heat transfer by conduction, convection and radiation to apply them through exercises in plant components and energy systems. In particular, it is investigated the application of the fundamental equations mass conservation and energy balance in the field of thermodynamics with reference also to examples and applications relating to HVAC systems. At the end of the course the student will be able to set up the analysis of heat transfer, thermal systems and will acquire a set of concepts that allow application to practical problems of heat transfer and heat loss of real systems.
Course contents
Thermodynamics
Principles of thermodynamics: general definitions. Reversibility and irreversibility. Work and heat. The principle for closed and open systems, internal energy and enthalpy. II Principle: definitions, entropy. Performance of thermal machines. Carnot cycle. COP of inverse cycle. Thermodynamic diagrams. Ideal gases and their major transformations. Cycles with ideal gas: cycles Otto, Joule and Diesel. Efficiency. Direct and inverse cycles (fluids with liquid-vapor phase transition), heat pump systems.

Heat transfer
Mechanisms of heat transfer. Heat conduction in solids: fundamental law of conduction and its application to flat and cylindrical surfaces in stady-state conditions, thermal insulation and critical thickness of insulation, electrical analogy. Heat transfer in natural and forced convection, finned surfaces. Heat transfer by radiation: definitions, basic laws, black body, gray bodies, electrical analogy. Overall heat transfer coefficient. Heat exchangers and their sizing. Heat transfer in dynamic conditions: calculation methods

Thermodynamics of moist air
Definition of significant parameters: relative and absolute humidity, enthalpy. Mollier diagram for moist air. Transformations on the diagram. Applications and calculations relating to HVAC systems: fundamental thermodynamic processes, mass and energy balances, sensible and latent heat loads, the main systems' configurations. Measuring instruments. The behavior of materials against moisture. Surface and interstitial condensation. Application examples.
Teaching methods
Lectures (hours/year in lecture theatre): 68
Practical class (hours/year in lecture theatre): 0
Practicals / Workshops (hours/year in lecture theatre): 0