Base Knowledge
No specific background is required.
Teaching Methodologies
In theoretical classes a theoretical exposition of each subject is made.
In theoretical-practical classes, complementary theoretical concepts are taught and application exercises are executed.
In the laboratory component, specialized practical works are carried out, from the realization of an installation, to the analysis of the functioning and diagnosis of faults of the systems studied in the theoretical and theoretical-practical classes. Contact and use of the tools and equipment most used in this area is provided.
Learning Results
Teach fundamental concepts of thermodynamics that will support the subsequent transmission of knowledge about HVAC systems and the equipment that constitute them. This will allow students to analyze and understand HVAC systems in order to identify and resolve associated problems as well as to do several maintenance actions on them.
It is also intended that they become aware of the main tools and equipment used in the installation, repair and maintenance, as well as the most used measuring and diagnostic instruments.
The skills developed will make it possible to carry out the various types of maintenance of an HVAC installation, detect simple failures, carry out minor repairs and, as well as perform routine maintenance operations on any equipment in a Heating, Ventilation and Air Conditioning system; In addition, you should be able to carry out, not only the installation of any component of an HVAC system, but also, if properly oriented, a complete system.
Program
BASIC CONCEPTS OF THERMODYNAMICS Thermodynamic coordinates – temperature, pressure, volume, enthalpy, entropy; Thermodynamic processes – isothermal, isobaric, isochoric, isentalpic, isentropic; Energy and power – heat and work; Performance and efficiency.
MAIN TYPES OF HVAC SYSTEMS: “All-Air” Systems; “All-water” Systems; “Air-water” systems; Direct Expansion Systems.
TYPES OF REFRIGERATING MACHINES: Vapor compression machines; Absorption machines.
CYCLES OF STEAM COMPRESSION REFRIGERATING MACHINES: Theoretical cycle; Standard cycle; Real cycle.
MAIN COMPONENTS OF A VAPOR COMPRESSION REFRIGERATOR: Compressors; Condensers and evaporators; Expansion Devices.
NETWORKS: Main types of fans; Main types of circulating pumps; Pipes and accessories; Pipes and accessories; Isolation; Speed variation of fans and pumps.
AIR TREATMENT UNITS: Main components: fans, filters, heating and cooling batteries, humidifiers, acoustic attenuators, etc .; Accessories: registers for regulating air flow, motorized valves, balancing valves, etc.
BASIC CONCEPTS OF HVAC PROJECTS: Calculation of thermal loads and choice of equipment; Calculation of space ventilation and choice of equipment.
SIMULATION OF AIR CONDITIONING PROCESSES: Simulation of several air conditioning processes in a laboratory Air Treatment Unit.
OPERATION AND MAINTENANCE OF DIFFERENT HVAC EQUIPMENT: Loading of a refrigerating machine and Recovery of the refrigerant fluid (refrigerant).
Curricular Unit Teachers
Internship(s)
NAO
Bibliography
Çengel, Y. A. e Boles, M. A. (2001). Termodinâmica. 3ª edição. McGraw-Hill. Lisboa. (Biblioteca do ISEC cota: 5-6-3, 5-6-14, ISBN 972-773-097-3).
Creus, J. A. (1980). Tratado prático de refrigeração automática. Dinalivro. Lisboa. (Biblioteca do ISEC cota: 4-13-74. ISBN 972-576-129-4).
Jones, J. B. e Hawkins G. A. (1986). Engineering thermodynamics: an introductory textbook. 2nd edition, Wiley. New York. (Biblioteca do ISEC cota: 5-6-49. ISBN 0-471-84313-X).
Moran, M. J. e Shapiro, H. N. (1998). Fundamentals of engineering thermodynamics: SI version. 3rd edition. Wiley. Chichester. (Biblioteca do ISEC cota: 6-5A-18. ISBN 0-471-97960-0).
Roriz, L. F. (2006). Climatização – Concepção, instalação e condução de sistemas. Editora Orion. Amadora. (Biblioteca do ISEC cota: 4-13-109. ISBN 978-972-8620-09-7).
Zemansky, M. W., Abbott, M. M. e Van Ness, H. C. (1985). Basic engineering thermodynamics. 2nd edition. McGraw Hill. Singapore. (Biblioteca do ISEC cota: 5-6-71. ISBN 0-07-072815-1).
Complementary Bibliography
Carpinteiro, J. (2011). Aquecimento, ventilação e ar condicionado. 3ª edição. Verlag Dashofer. Portugal.
Silva, J. C. e Silva, A. C. G. C. (2007). Refrigeração e climatização para técnicos e engenheiros, Ciência Moderna. Rio de Janeiro.