Building modelling repository for energy analysis

Master Thesis by James William O’Sullivan.

Start date: 23-01-2017           End date: 25-06-2017

Abstract – Developing a repository that collects descriptions, drawings, plans, BIM models, simulation models and such like for all typical Danish buildings. With this repository established, we are able to estimate the demand of districts, cities and do many others things.

BIM: The Importance of Communication

Master thesis by Maria Herroros, December 2016

Winner of Innovation Competition “Sprirekassen” by Bikubenfonden, Feb. 2017.


Building Information Modeling (BIM) methods started to be implemented in the Architectural Engineering Construction sector (AEC) in order to make the industry more efficient, innovative and with better quality on the project delivery, reducing costs.  BIM replaces the traditional way of communication, 2D drawings, by using 3D models, where all data is gather in one place and all parties of the project can access to it. However, the transition of work methodology is a slow implementation process due the use of new tools and the need of skilled people, while the industry is not completely prepared yet.  Communication, is essential when using BIM method to achieve good results, avoiding misunderstandings, hence, BIM is a collaborative sharing process.

During different stages of a building project, there are minimum requirements that must be accomplished in the deliveries. When talking about BIM, it is meant to the level of development (LOD) of building model elements and BIM model level. The LOD specifies how accurate the model element is, and what information should contain. This concept is still confusing for most of the departments, and needs a deeper comprehension in the beginning of every project, also when there is a collaboration with international colleagues, who use other country standards. These issues could be accomplished by using effective communication tools.

The objective of this thesis is to build a solution, which will improve BIM communication between project disciplines, helping to understand LOD´s among project stages and cross countries. The solution is built according to the company demands, Arup engineers, focusing on the Mechanical Electrical Plumbing (MEP) department that divided between Copenhagen and London office, and data exchange between them in a case study project.

The method is created through a development process, which is documented in this report. The process consists in a first evaluation of the company´s needs and improvements required in the MEP department. Based on findings, a tool is created to improve information exchange between engineers, speed up workflow and achieve requirements, requested to deliver in every project stage. The tool is called BIMapping.  BIMapping is created as a web-based page, hence, all information is digitized and gathered in one place.

BIMapping, is presented in the main page interface. This main page is a single entry to all knowledge included, and represents a mapping on the standardization levels. The main page is divided into three main sections, which guides the user through the whole project process and gives a deep information of LOD and BIM levels, required at every point of the project for building services.

The solution is reviewed and tested by BIM experts, who contribute with their feedbacks to the development of BIMapping and future studies.

The tool should not be seen as a final solution, but as a startup initiative which was welcomed and appreciated by BIM experts, as a good element to be implemented in BIM project process.


Develop of a proof of concept for the utilization of data for an optimal and controllable indoor environment at the DTU Library Living Lab

Master thesis by Jørgen Falch Waarsøe, December 2016

Abstract – The library at DTU has a vision of improving the indoor climate by making the library more intelligent and by turning the entire library into a living lab. Researchers and students should be able to use the living lab to conduct ex-periments that can lead to a improved indoor climate in the library. The first phase in turning the library into a living lab involves removing all the lamps and replacing them with LEDs. While replacing the lamps the library will also install sensors that can be used as a part of the living lab. The DTU library is now looking for ideas to how the new lighting system and sensors can be an integrated part of the living lab.

This thesis is about developing a software system, which can help the living lab improve to the indoor climate, by taking advantage of the new LED lamps in the library. The system developed consists of an automation system and a smartphone app. The automation system can be configured by users of the living lab users to take input from sensors and adjust the lighting accordingly. The smartphone app is used by the library guests to adjust the lighting decided by the automation system.

The tests made showed that the software is working as intended and that it can be a useful tool for conducting experiments. However the initial tests show that an automated lighting system can be very distracting. Therefore it is important that users can override the automation system.

Supervisor: (Al)Fred Heller, DTU Civil Engineering, Denmark.

The thesis download version: thesis_s103801