Acclimatization and Refrugeration
Áreas Científicas |
Classificação |
Área Científica |
OFICIAL |
Applied Thermodynamics |
Ocorrência: 2023/2024 - 1S
Ciclos de Estudo/Cursos
Sigla |
Nº de Estudantes |
Plano de Estudos |
Anos Curriculares |
Créditos UCN |
Créditos ECTS |
Horas de Contacto |
Horas Totais |
EM |
8 |
Plano de Estudos |
2 |
- |
6 |
75 |
162 |
Docência - Responsabilidades
Língua de trabalho
Portuguese
Obs.: Português
Objetivos
Provide the basic concepts and encourage a taste for the study of HVAC and Refrigeration.
Provide students with basic knowledge of psychrometrics and know how to apply this knowledge to the most common climate control situations.
Provide the student with the theoretical and practical concepts necessary to study the various types of refrigeration machines, as well as carry out their dimensioning.Resultados de aprendizagem e competências
Know how to calculate, size and interpret HVAC and refrigeration systems and equipment.Modo de trabalho
Presencial
Pré-requisitos (conhecimentos prévios) e co-requisitos (conhecimentos simultâneos)
Sustained knowledge of thermodynamics, fluid mechanics and heat and mass transmission.Programa
Chap.1 - Thermodynamics Revisions. Reviews of the main concepts of thermodynamics. Thermodynamic properties. 1st law of thermodynamics aplyed to closed and open systems. Massic and energetic balances.
Chap.2 – Psychometry. Mixture of air and water vapor. Moist air. Wet air properties, wet and dry bulb temperature, relative humidity and specific humidity, enthalpy and specific volume.
Chap.3 – One-story, two-story and waterfall refrigeration cycles. Theoretical and real cycles for refrigeration production, Mollier diagram (T-s, P-h), characteristic parameters of the cycle, refrigerating efficiency and COP, isentropic compressor efficiency, refrigerating effect and refrigerating power, compression power.
Cap.4 – Refrigerating equipment. Types of compressors, their classification and operating principles. Condensers, Evaporators and Expansion Devices. Auxiliary and safety equipment. Control equipment. Cooling fluids.
Chap.5 - Perishable products. Characteristics, refrigeration, freezing and conservation. Constitution of food. Operating temperatures. Storage conditions. Cold rooms and Cooling Tunnels.
Bibliografia Obrigatória
W.P. Jones,; Air Conditioning Engineering", Edward Arnold
P. Koelet; Industrial Refrigeration – Principles, Design and Applications, The MacMillan Press
Métodos de ensino e atividades de aprendizagem
Exposition in the classroom through theoretical-practical and laboratory classes.Tipo de avaliação
Distributed evaluation without final exam
Componentes de Avaliação
Designation |
Peso (%) |
Teste |
70,00 |
Trabalho laboratorial |
30,00 |
Total: |
100,00 |
Componentes de Ocupação
Designation |
Tempo (Horas) |
Estudo autónomo |
20,00 |
Frequência das aulas |
50,00 |
Trabalho laboratorial |
30,00 |
Total: |
100,00 |
Obtenção de frequência
Continuous assessment (to be carried out during the term):
- Two tests (70%) - Minimum score for each test 9.0V (with the possibility of recovery); Minimum arithmetic mean: 9.5V
- Laboratory work (30%) - Mandatory
- If the student does not obtain the minimum grade in one of the tests, he/she can recover on the date of the recovery test.
* Recovery of one or both tests (to be carried out after the academic period on the two dates defined by the Pedagogical Council):Fórmula de cálculo da classificação final
FINAL GRADE = 0.35 NT1 + 0.35 NT2 + 0.3 NL
NT1 - 1st test grade
NT2 - 2nd test score
NL - laboratory component grade