IDENTIFYING DATA 2023_24
Subject (*) INDUSTRIAL HEATING AND COOLING Code 20224110
Study programme
Bachelor's Degree in Mechanical Engineering (2010)
 Cycle 1st
Descriptors Credits Type Year Period
3 Compulsory Third 1Q
Language
Castellà
Department Mechanical Engineering
Coordinator
BOUROUIS CHEBATA, MAHMOUD
 E-mail mahmoud.bourouis@urv.cat
francisco.oliva@urv.cat
Lecturers
BOUROUIS CHEBATA, MAHMOUD
OLIVA CANO, FRANCISCO
Web
General description and relevant information <div><b>GENERAL DESCRIPTION OF THE SUBJECT</b></div><div>Vapor compression refrigeration systems and their most important applications are explained in this subject. Its main elements are described and guidelines for a basic design are given. The impact of refrigeration on the environment is also explained.</div>

Competences
Type A Code Competences Specific
 A1.1 Consistently apply knowledge of basic scientific and technological subjects pertaining to engineering
 A1.3 Ability to analyse and assess the social and environmental impact of technical solutions (G7)
 A1.4 Ability to apply the principles and methods of quality control (G8)
 A1.9 Project thermal machinery and heat exchange systems
 A5.3 Applied knowledge of thermal engineering (M3)
Type B Code Competences Transversal
Type C Code Competences Nuclear

Learning outcomes
Type A Code Learning outcomes
 A1.1 Aplica correctament els principis de l'enginyeria tèrmica.
 A1.3 Pren consciència de la problemàtica ambiental generada pels refrigerants.
 A1.4 Aplica els criteris de qualitat a la selecció i operació de sistemes de refrigeració industrial.
 A1.9 Comprèn el funcionament d'un cicle de refrigeració per compressió mecànica de vapor i l'efecte de les condicions d'operació sobre el rendiment d'un cicle de refrigeració.
 A5.3 Resol problemes de processos d'aire condicionat.
Type B Code Learning outcomes
Type C Code Learning outcomes

Contents
Topic Sub-topic
1. Introduction Cooling applications and methods. Diagram of properties of pure substances. Energy balance in open systems. The second principle of thermodynamics and the Carnot cycle.
2. Refrigerants Primary and secondary refrigerants. Nomenclature and classification. Mixtures of refrigerants. Effects of refrigerants on the environment: climate change and impact on the ozone layer.
3. Mechanical vapor compression refrigeration cycle Main elements Principle of operation. The P-h diagram. Single stage and ideal vapour compression cycle. Real vapour compression cycle. Volumetric behaviour. Multi-stage vapour compression cycles.
4. Compressors Function and classification. Alternative compressors. Rotary volumetric compressors. Centrifugal compressors. Capacity control.
5. Condensers Air condensers. Water condensers. Evaporative condensers.
6. Evaporators Dry and flooded evaporators. Direct and indirect expansion evaporators. Control of ice formation.
7. Expansion devices Function. Capillary tubes. Thermostatic valves. Electronic valves.
8. Psychrometry Moist air as an ideal gas. Variables of humid air. Psychrometric diagram. Typical processes in air conditioning.

Planning
Methodologies  ::  Tests
  Competences (*) Class hours
 Hours outside the classroom
 (**) Total hours
Introductory activities
1 0 1
Lecture
A1.1
A1.3
A1.4
A1.9
A5.3
 12 21 33
Problem solving, exercises in the classroom
A1.1
A1.3
A1.4
A1.9
A5.3
 12 20 32
Personal attention
1 0 1
 
Short-answer objective tests
A1.1
A1.3
A1.4
A1.9
A5.3
 2 2 4
Short-answer objective tests
A1.1
A1.3
A1.4
A1.9
A5.3
 2 2 4
 
(*) On e-learning, hours of virtual attendance of the teacher.
(**) The information in the planning table is for guidance only and does not take into account the heterogeneity of the students.

Methodologies
Methodologies
  Description
Introductory activities Activities aimed at making contact and collecting information from the students and presentation of the subject.
Lecture Presentation of the contents of the subject.
Problem solving, exercises in the classroom Formulation, analysis, resolution and debate of a problem or exercise, related to the subject matter.
Personal attention Time that each teacher has reserved to attend to and solve students' doubts.

Personalized attention
Description

Tutorials will take place online, by email or via Teams meetings. E-mail: mahmoud.bourouis@urv.cat

Assessment
Methodologies Competences Description Weight        
Short-answer objective tests
A1.1
A1.3
A1.4
A1.9
A5.3
 Individual test that assesses the student's knowledge and skills to solve questions and problems. 50%
Short-answer objective tests
A1.1
A1.3
A1.4
A1.9
A5.3
 Individual final test that assesses the student's knowledge and skills to solve questions and problems. 50%
Others  
 
Other comments and second exam session
1. The minimum grade in each of the continuous assessment tests is 3/10.

2. The exam of the second call will be of all the subject material and will have a weight of 100%.

3. During the assessment tests, mobile phones, tablets and other electronic devices that are not expressly authorized by the test must be switched off and out of sight.

Sources of information

Basic Mahmoud Bourouis, Calor y Frío Industrial, Universitat Rovira i Virgili, 2023
Enrique Torrella Alcaraz, Frío Industrial: Métodos de producción, 1a, 2010
R. Llopis, R. Cabello, D. Sánchez y E. Torrella, Problemas resueltos de producción de frío y sicrometría. Tablas y diagramas, 1a, 2010

Complementary Ángel Luis Miranda Barreras, Manual técnico de refrigerantes, 1a, 2012
Ministerio de Industria, Reglamento de Seguridad para Instalaciones Frigoríficas, 1a, 2011

Recommendations

Subjects that are recommended to be taken simultaneously
THERMAL MACHINES LABORATORY/20224111

Subjects that it is recommended to have taken before
THERMAL ENGINEERING I/20224108
THERMAL ENGINEERING II/20224109
(*)The teaching guide is the document in which the URV publishes the information about all its courses. It is a public document and cannot be modified. Only in exceptional cases can it be revised by the competent agent or duly revised so that it is in line with current legislation.