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Personal profile

Research profile

Roel Loonen is an Assistant Professor at the Unit Building Physics and Services, Eindhoven University of Technology, the Netherlands. His research and teaching focus on the development and application of modeling and simulation strategies to provide decision support for designing buildings that combine high indoor quality with low or no impact on the environment. Roel collaborates with SMEs in various R&D projects, aspiring to accelerate the process of bringing innovative building envelope technologies and renewable energy systems to the market. Many of his projects deal with the advancement of adaptive facades and building-integrated renewable energy technologies, for example through development, validation and application of new building performance simulation models.

Academic background

Roel Loonen received a BSc and MSc (cum laude) in Building Services from Eindhoven University of Technology, the Netherlands. In 2018, he received a PhD from the same university with a dissertation on ‘Approaches for computational performance optimization of innovative adaptive façade concepts’. Roel was awarded the first prize in the REHVA International Student Competition (2011), and the Best PhD supervisor award from the Department of the Built Environment, TU/e. Roel is a board member of the Dutch-Flemish affiliate of the International Building Performance Simulation Association (IBPSA) and co-chair of the website committee of IBPSA World. He is a reviewer for 23 academic journals and has been a member of several scientific committees of international conferences.


Knowing that trying to predict the future is a loser’s game, it becomes a rewarding challenge to develop models that are as useful instead of as complex as possible.

Fingerprint Dive into the research topics where Roel C.G.M. Loonen is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Facades Engineering & Materials Science
3D printers Engineering & Materials Science
Concrete additives Engineering & Materials Science
Concretes Engineering & Materials Science
Product development Engineering & Materials Science
Energy efficiency Engineering & Materials Science
Energy conservation Engineering & Materials Science
Innovation Engineering & Materials Science

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Projects 2016 2019

PVOpmaat: CustomFit: the integration of solar panels

Hensen, J., Loonen, R., van der Avoird, M., Klein, C., Klein, C. & Bognár, Á.


Project: Research direct

Research Output 2008 2019

Adaptive façades

Aelenei, D., Aelenei, L., Loonen, R. C. G. M., Perino, M. & Serra, V., 2019, Handbook of Energy Efficiency in Buildings: A Life Cycle Approach. Elsevier, p. 384-411 28 p.

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Algorithmic design and performance analysis of adaptive facades

Martinho, H., Belém, C., Leitão, A., Loonen, R. & Glória Gomes, M., 2019, Proceedings of the 24th International Conference of the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA) 2019. Hongkong: CAADRIA, Vol. 1, p. 684-694

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Open Access
Architectural design
Energy utilization
Decision making
Open Access
Optical properties
Liquid crystals
Energy efficiency

Building performance robustness assessment: Comparative study and demonstration using scenario analysis

Kotireddy, R. R., Loonen, R., Hoes, P-J. & Hensen, J., 2019, In : Energy and Buildings. 202, 109362, 20 p., 109362

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
Environmental impact

Comparison of the energy saving potential of adaptive and controllable smart windows: A state-of-the-art review and simulation studies of thermochromic, photochromic and electrochromic technologies

Tällberg, R., Jelle, B. P., Loonen, R., Gao, T. & Hamdy, M. H., 15 Sep 2019, In : Solar Energy Materials and Solar Cells. 200, p. 1-30 109828 p.

Research output: Contribution to journalArticleAcademicpeer-review

Energy conservation
Level control
Software packages


Best Supervisor Award (daily advisor) from PhD Network at the Department of the Built Environment, Eindhoven University of Technology

Roel Loonen (Recipient), 7 Jun 2018

Recognition: OtherCareer, activity or publication related prizes (lifetime, best paper, poster etc.)Scientific

First prize - REHVA International student competition 2011

Roel Loonen (Recipient), 19 May 2011

Recognition: OtherCareer, activity or publication related prizes (lifetime, best paper, poster etc.)Scientific


Visiting researcher - Energy Efficient Buildings Hub - Philiadelphia

Roel Loonen (Recipient), 2012

Recognition: Othervisiting scholarScientific


Press / Media

Staan de Alpen straks vol zonnepanelen?

Roel Loonen


1 item of media coverage

Press/Media: Expert Comment

Opeens zie je overal zonnepanelen

Roel Loonen


1 item of media coverage

Press/Media: Expert Comment

Bij adaptieve gevels draait alles om de zon

Roel Loonen


1 item of media coverage

Press/Media: Public Engagement Activities

Oases of cool: Taking the heat out of urban living

Roel Loonen


1 item of media coverage

Press/Media: Expert Comment

Student theses

Active insulation: computational assessment of the performance of a forced convective dynamic insulation system

Author: Koenders, S., 27 Mar 2018

Supervisor: Hensen, J. L. (Supervisor 1), Loonen, R. (Supervisor 2) & de Klijn, M. (Supervisor 2)

Student thesis: Master


Analysing the match between the energy production and consumption of a Net-Zero Energy Building: a multi-physics approach using Modelica

Author: Jacobs, D., 31 Aug 2015

Supervisor: Hensen, J. (Supervisor 1), Loonen, R. (Supervisor 2) & Puranik, S. (Supervisor 2)

Student thesis: Master


Building a simple method to determine the effectiveness of using waste heat from a BIPV system

Author: Annur, R., 25 Jan 2018

Supervisor: Loonen, R. (Supervisor 1), Valckenborg, R. (Supervisor 2) & Hensen, J. (Supervisor 2)

Student thesis: Master

Building performance simulation for steering the research and development of liquid crystalline window

Author: Singaravel, S., 30 Nov 2011

Supervisor: Hensen, J. (Supervisor 1), Trcka, M. (Supervisor 2) & Loonen, R. (Supervisor 2)

Student thesis: Master