Autenticação

Utilizador:

Senha:

Iniciar sessão

Esqueceu-se da senha?

Ventilation and indoor Air Quality

Code:

MEGEIE02

Sigla:

VQAI

Áreas Científicas
Classificação	Área Científica
OFICIAL	Applied Thermodynamics

Ocorrência: 2022/2023 - 1T

Ativa?	Yes
Unidade Responsável:	Departamento de Engenharia Mecânica
Curso/CE Responsável:

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
MEGEIE	11	Plano de estudos_2019_2020	1	-	5	55	135

Língua de trabalho

Portuguese

Objetivos

Provide students with knowledge of building ventilation to ensure indoor air quality (QAI). Know the regulations and the main standards of ventilation. Know the principles of natural ventilation and mechanical ventilation and know how to design ventilation systems.

Resultados de aprendizagem e competências

Know the pollutants in the indoor air, the regulatory limits, the equipment and methodologies for evaluating the quality of indoor air. Know how to calculate outdoor air flow using standards and regulations. Know how to design natural ventilation and mechanical ventilation systems. Know how to design duct networks and fans.

Modo de trabalho

Presencial

Pré-requisitos (conhecimentos prévios) e co-requisitos (conhecimentos simultâneos)

Fluid Mechanics. Notions of air conditioning.

Programa

-Introduction to Building Ventilation and Indoor Air Quality: Introduction to Ventilation; Air pollutants inside;

- Natural ventilation of buildings: Natural ventilation; rates of natural ventilation and infiltration; Natural ventilation and regulations

- Mechanical ventilation of buildings: Introduction to mechanical ventilation systems in buildings; Fundamental concepts; Low and high speed systems; Constant and variable air flow; Mechanical ventilation and regulations;

- Mechanical ventilation of buildings - Network dimensioning of ducts and their components; Sizing methods and programs;

- Fans and Features: Characteristic curves. Laws and types of fans; Flow regulation;

- Air diffusion components: Types of diffusers and grids; Selection criteria;

- Main components of Air Handling Units: Different Sections; Dimensioning of AHUs;

- Internal Air Quality Audits: Audit and verification methodologies.

Bibliografia Obrigatória

Luis F. Roriz; Climatização. Concepção, Instalação e Condução de Sistemas.
SMACNA; HVAC Systems-Duct Design, 4th Edition, SMACNA
CEN; Normas EN15242, EN13779, EN15239, EN15780 e EN12097
Legislação Nacional; Decreto-Lei n.º 101-D/2020 de 7 de dezembro
Legislação Nacional; Portaria n.º138-G/ 2021 – Requisitos QAI
Legislação Nacional; Portaria n.º138-I/ 2021 – Requisitos de Energia
ADENE; Manual SCE Manual Técnico para a Avaliação do Desempenho Energético dos Edifícios

Bibliografia Complementar

Ashrae; -Ashrae Handbook Heating, Ventilating, and Air Conditioning Systems - HVAC Systems and Equipment

Métodos de ensino e atividades de aprendizagem

The teaching methodology will focus on a presentation of the programmatic contents that will be carried out in person, followed by three autonomous works of the students based on research to deepen topics, solve problems and carry out small projects, using design programs. A full-scale laboratory testing of fans will also be conducted so that students can apply the acquired knowledge.

The methodology will have a strong online component expected in the time of contact with students and based on the moodle platform that in addition to the availability of content and support material will also be
used to discuss topics and clarify doubts.

Software

Hourly Analysis Program – Carrier
Folha de Cálculo VentilacaoRph do LNEC, para cálculo de ventilação natural de acordo com o SCE
Folha de Cálculo “Qventila”, para cálculo dos valores mínimos de caudal de ar novo de acordo com o método analítico para os ocupantes.

Palavras Chave

Technological sciences > Engineering > Thermal engineering
Technological sciences > Engineering > Mechanical engineering

Tipo de avaliação

Distributed evaluation without final exam

Componentes de Avaliação

Designation	Peso (%)
Teste	40,00
Trabalho escrito	60,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Estudo autónomo	30,00
Frequência das aulas	55,00
Trabalho escrito	50,00
Total:	135,00

Obtenção de frequência

Final score equal to or greater than 10 points.
Minimum test score: 7 points.

Fórmula de cálculo da classificação final

Final score= 60% work+ 40% Test
Minimum test score: 7 points.

Melhoria de classificação

Possible recovery of test and work at normal period of evaluation.