Prediction of power and energy use in dwellings : Addressing apects of thermal mass and occupant behaviour
Bedömning av effekt- och energianvändning i bostäder : Fokus på termisk massa och boendes beteende
Author
Summary, in English
This thesis aims show how the use of household electricity and domestic hot water varies and how these variations impact the energy and power demand of buildings. Additionally, in order to achieve a higher possible level of load matching there is a need to time shift power loads. This is another building operation process that has been investigated.
The primary method in both cases has been to use building simulations with large amounts of measurement data for occupant behaviour as input to the simulation models. By randomly inserting different measurement data sets, and running simulations repeatedly, the outcomes were hundreds of annual energy and power demands that varied with the variation of the input.
Furthermore, load shifting was investigated by abruptly reducing the heating power supply to buildings. The heat stored in the building envelope and furniture was then used to reduce the effects on the indoor temperature. This thesis examines the temperature drops caused by such power reductions and the various factors that affect the size of the temperature drops, such as the thermal mass and the properties of the building envelope, as well as the stochastic behaviour of the occupants that creates the internal heat load,
Department/s
Publishing year
2020-05-13
Language
English
Publication/Series
TVIT
Full text
Document type
Dissertation
Publisher
Lund University, Lund Institute of Technology, Division of Building Services, P.O. Box 118, SE-22100 LUND, Sweden,
Topic
- Energy Systems
Keywords
- Byggnadssimulering
- Termisk massa
- Värmetröghet
- boendes beteende
- hushållsel
- varmvatten
- building simulation
- thermal mass
- thermal inertia
- occupant behaviour
- household electricity
- domestic hot water
Status
Published
Supervisor
ISBN/ISSN/Other
- ISSN: 1652-6783
- ISBN: 978-91-85415-11-3
Defence date
8 June 2020
Defence time
13:00
Defence place
Lecture hall V:C, building V, John Ericssons väg 1, Faculty of Engineering LTH, Lund University, Lund. Follow via Zoom: https://lu-se.zoom.us/j/66884212111
Opponent
- Thomas Olofsson (Prof..)