OVERVIEW

The course aims to provide the basic knowledge necessary to understand the main applications of applied physics which are relevant for the design of small pleasure yacht. After the introduction to the principles of the thermodynamics applied to energy systems, the study of direct and inverse thermodynamic cycles, the heat transfer and the main problems related to thermoigrometric comfort and environmental air conditioning is addressed; finally, the fundamentals of energetics are presented.

AIMS AND CONTENT

AIMS AND LEARNING OUTCOMES

Educational objectives

Through the course contents, the student is able to analyze and solve simple problems in different fields of applied physics: applied thermodynamics, heat transfer, environmental comfort and air conditioning, with particular reference to applications relating to mechanical engineering.

The lessons and activities are aimed simultaneously at

• encourage the acquisition of critical knowledge of the proposed themes or case studies and related physical phenomena,
• support the student in the acquisition of an adequate technical-scientific language, as an indispensable tool both for understanding technical documentation and for dialogue with the various players in the mechanical engineering field.

Learning outcomes

At the end of the course students will have to

• remember the main thermophysical quantities/properties with the relative units of measure,
• be able to accurately identify the physical meaning of the terms that make up the mathematical expressions of the relationships/physical laws, with particular attention to dimensional analysis,
• be able to correctly interpret a proposed text, knowing how to discuss the proposed application or case study,
• be able to solve simple numerical problems,
• have a clear awareness of the physical phenomena treated and the related technical implications,
• have acquired an adequate technical-scientific language, which tends not to leave ambiguities in the interpretation.

In addition, as a desirable more advanced result, students will also acquire an awareness of the subject to be able to

• analyze more complex problems related to physical-applied applications in the nautical sector,
• study articulated design solutions relating to thermohygrometric comfort and air conditioning systems.

PREREQUISITES

To effectively tackle the content of this course, the following basic mathematical knowledge is required:

• Calculation of areas and volumes of simple geometries.
• Functions: linear, absolute value, parabolic, hyperbolic, logarithmic, exponential, trigonometric functions (sine, cosine, tangent, and their inverses).
• Solving equations of first and second degree, equations with logarithms and trigonometric functions.
• Simple inequalities.

Additionally, a solid understanding of the following mathematical analysis topics is desirable for a critical comprehension of the treated physical phenomena:

• Meaning of limit.
• Differential calculus in a real variable: geometric interpretation of derivative and integral concepts, calculation of derivatives and integrals of simple functions.
• Separable first and second-order ordinary differential equations.

Furthermore, a fundamental knowledge of general physics, with particular reference to the main topics in mechanics, is essential:

• Units of measurement, scalar and vector quantities.
• Kinematics: displacement, velocity, acceleration. Uniform linear motion and uniformly accelerated linear motion. Uniform circular motion.
• Dynamics: fundamental laws of dynamics, concept of work, kinetic and potential energy, mechanical power. Principle of conservation of mechanical energy.

In order to solve simple numerical problems, proficiency in using a scientific calculator

TEACHING METHODS

The course is conducted in the Italian language using predominantly traditional teaching methods, alternating between lectures and numerical exercises.
Some topics are taught using the teaching methods prescribed by TBL (Team Based Learning), a pedagogical strategy based on independent study and collaborative learning. Before each lesson, instructional materials are assigned for self-study, and in-class activities, both individual and group-based, are then conducted to apply and assess the acquired knowledge. These activities include multiple-choice tests with immediate feedback, to be solved individually or in groups, as well as practical problems to be analyzed and solved, including numerical calculations. All individual and group activities are subject to evaluation.

SYLLABUS/CONTENT

General knowledge of mechanical quantities and their relative units is an essential prerequisite to the study of physical phenomena: in fact, they are recalled in the introductory part of the course.
Then, the course addresses the main topics of technical thermodynamics, hinting at the analysis of thermodynamic systems and energy transfer that characterize them.
Afterwards the course deals with the study of the main heat transfer mechanisms: conduction, convection and thermal radiation. Finally, the basics of thermohygrometry are introduced, aimed at analyzing the conditions of environmental comfort and preliminary to the study of air conditioning systems. Finally, the fundamentals of energetics are presented.

RECOMMENDED READING/BIBLIOGRAPHY

Bergero S., Chiari A., Appunti di termodinamica, Aracne editrice, 2007.
Bergero S., Chiari A., Appunti di trasmissione del calore, Aracne editrice, 2012.
Bergero S., Chiari A., Appunti di termoigrometria e impianti, Aracne editrice, 2015.
Bergero S., Cavalletti P., Chiari A., Problemi di Fisica Tecnica, Dario Flaccovio, 2014

G. Guglielmini e C. Pisoni, Elementi di Trasmissione del Calore, Ed.Veschi, 1990
G. Guglielmini, E. Nannei e C. Pisoni, Problemi di Termodinamica Tecnica e Trasmissione del Calore, Ed. Ecig, 1985

All books are available in the library; they can be easily purchased on the main websites and are also available in electronic format.

In the AulaWeb of the course, the additional teaching materials, the complete reference bibliography, proposed and solved exercises, texts of exams, are made available to students.

TEACHERS AND EXAM BOARD

Exam Board

MATTIA DE ROSA (President)

FRANCESCO DEVIA

ANNA CHIARI (President Substitute)

GUGLIELMO LOMONACO (President Substitute)

ANNALISA MARCHITTO (Substitute)

GIOVANNI TANDA (Substitute)

LESSONS

Class schedule

The timetable for this course is available here: Portale EasyAcademy

EXAMS

EXAM DESCRIPTION

The exam consists of a written test and an oral exam covering the entire course syllabus.

The written test focuses on solving numerical problems related to the main topics covered. The oral exam is aimed at assessing theoretical knowledge of these topics, particularly the critical understanding of the issues addressed.

Only the dates for the written tests are listed in the official calendar. The date of the oral exam is communicated at the end of the written test (usually in the week following the written test).

Access to the oral exam is granted only after passing the written test. If the oral exam is not passed, the written test is no longer considered valid.

During the written test, only the use of a calculator, tables provided at the beginning of the course, and a formula sheet created by the student (one double-sided A4 sheet) containing difficult-to-memorize formulas is allowed (worked exercises are not permitted). The use of books and notes is not allowed.

ASSESSMENT METHODS

The exam consists of two parts:

• Written test (50%): Conducted in every exam session on the date indicated in the calendar, it focuses on solving numerical problems related to the topics covered in both modules. Grading is on a scale of 30.
• Oral exam (50%): This involves a series of questions on the theoretical and practical aspects of the module topics, aimed at assessing the critical understanding of the main concepts. The oral exam can only be taken after receiving a passing grade in the written test. Grading is on a scale of 30.

During the written test, only the use of a calculator, tables provided at the start of the course, and a formula sheet is allowed. The use of books and notes is not permitted.

FINAL GRADE

The final grade consists of the arithmetic average of both the wirtten test and oral exam. For all assessments, the evaluation method takes into account the specified learning outcomes.

Exam schedule

FURTHER INFORMATION

All the information regarding the course (student office hours, teacher's communications, teaching materials, etc.) can be found and regularly updated on AulaWeb.