Course syllabus
Ventilation och luftkvalitet i byggnader
Ventilation and Indoor Air Quality
ABKF10, 7,5 credits, G2 (First Cycle)
Valid for: 2020/21
Decided by: PLED V
Date of Decision: 2020-03-23
General Information
Main field: Energy-efficient and Environmental Buildings.
Compulsory for: MEMB1
Language of instruction: The course will be given in English
Aim
To give more advanced knowledge about the indoor environment;
the factors which influence the indoor environment and how a
satisfying indoor environment should be achieved by the design of
the technical systems with focus on the ventilation systems.
To give the student knowledge to create buildings which fulfill
demands concerning comfort, healthy indoor environment and energy
requirements.
Learning outcomes
Knowledge and understanding
For a passing grade the student must
- be able to understand how a building functions as a climate
system
- be able to describe ventilation concepts and all kinds of
ventilation systems and other HVAC systems
- be able to understand key concepts about air quality
- be able to describe and have a basic knowledge about where
hazardous and other substances may occur in the indoor environment
and their effect on humans and environment
- be able to analyze functional requirements, based on human
health and comfort, and air-flow demands for different
applications
- be able to describe and explain how to design climatic systems
on room level to fulfil all functional requirements
- be able to explain significant factors when creating
energy-efficient ventilation systems
- be able to identify dimensioning criteria’s for air
conditioning and decide air flow rate and air temperature
- be able to understand how different designs and operations of
ventilation systems will affect fire-gas spread in a building via
the ventilation system in case of fire
- be able to measure basic different indoor climate
parameters
- be able to discuss current research trends and challenges in
the field of indoor air quality and ventilation
Competences and skills
For a passing grade the student must
- be able to design and dimension HVAC systems to achieve
thermally and hygienically satisfying indoor environment, and solve
the co-ordination with framework, building envelope and
architectural design
- be able to apply computer programs for determination of air
flow pattern in rooms and for design of ventilation components
- be able to describe and discuss physical parameters which
influence air quality and air distribution in rooms
- be able to calculate pressure drops in ventilation systems and
corresponding pressure rise need for the fan
- be able to develop passive strategies for indoor climate
control
- be able to perform energy analysis and suggest energy
efficiency measures concerning ventilation systems
- show ability for teamwork and cooperation in groups, be able to
oral and in written, in dialog with other groups, present and
discuss ones results and conclusions
- be able to design a sufficient supply of air to the room by
avoiding drafts, high temperature gradient and high concentration
of pollutants in the occupied zone, including choosing supply
device and its design parameters
- be able to calculate the energy use for the ventilation system
in the operating stage and thereby make choices in the design stage
on heating and heat recovery systems components for both
hygienically and energy-efficient solutions
Judgement and approach
For a passing grade the student must
- be able to realize the need for further knowledge to develop
his/her competence
- be able to decide which type of HVAC system to use in a
specific building based on which system that can fulfil the
technical demands, and be suitable for different conditions;
outdoor climate, intended activities and climate demands
- be able to judge, based on the knowledge of the different
technical solutions, which systems could be possible and
advantageous to apply in a building with very high energy
demands
- be able to critically analyse building service design solutions
in terms of hygienically, thermal and energy-efficient objectives
and to identify faults, risks, and limitations
Contents
The course aims to start with introducing air quality and the
substances which may occur in the indoor environment. The known
effects on the humans will be described. Demands which fulfil a
satisfying thermal and hygienical indoor environment will be
elaborated.
The course will continue to deal with technical measures which
aim at creating a satisfying indoor environment and a good air
quality indoors. The technical solutions include different
ventilations systems and other HVAC systems. The design of these
systems and its components will be lectured and focus will be given
on to explain how the system should be designed in order to achieve
a satisfying indoor environment and energy-efficient design
solution.
The problem of fire smoke spread via ventilation systems
including hazardeous substances, high temperatures and poor
visibility will be described.
The students will perform exercises including calculation both
by hand and computer. The content of the course will be applied in
an exercise which the students will work with during the
course.
Examination details
Grading scale: TH - (U,3,4,5) - (Fail, Three, Four, Five)
Assessment: The final grade is to 70% based on the written examination and to 30% on the performance related to the exercises and lectures.
The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.
Parts
Code: 0113. Name: Exercise.
Credits: 3. Grading scale: UG. Assessment: Examination based on written report according to given criteria. Contents: Design of ventilation system incl. pressure drop calculation.
Code: 0213. Name: Written Examination.
Credits: 4,5. Grading scale: TH. Assessment: Examination based on the written examination. Contents: Written examination of the whole course.
Admission
Admission requirements:
- Submitted project assignment in the course AEBN10 Passive house - integrating thermal and moisture issues
The number of participants is limited to: No
Reading list
- Abel E, Elmroth A: Buildings and Energy - a systematic approach, T6:2007. FORMAS, 2007, ISBN: 978-91-540-5997-3. Reference Book.
- The Commtech group, editor Nilsson PE: Achieving the desired indoor climate. Studentlitteratur, 2003, ISBN: 91-44-03235-8. Reference Book.
- Course literature will be available through an electronic course library via the course website.
- Lechner, Norbert : Heating, Cooling, Lighting. Sustainable Design methods for Architects. Whiley. , 2014, ISBN: 978-0-470-04809-2. Textbook.
Contact and other information
Course coordinator: Saqib Javed, saqib.javed@hvac.lth.se
Teacher: Dennis Johansson, dennis.johansson@hvac.lth.se
Course homepage: https://liveatlund.lu.se