Researcher Marc Ottelé focused specifically on facades and sees considerable benefits in creating vertical vegetation. Among other things, the plants help to absorb hazardous fine dust from the air. Ottelé obtained his doctorate from TU Delft on this subject on Tuesday, 28 June 2011.
According to Ottelé, 'So-called vertical greenery is becoming an increasingly attractive option in designing modern buildings. Vertical vegetation contributes to the improvement of the thermal conduct (insulating properties) of buildings, to increased biodiversity as well as to their aesthetic and social aspects, but also helps to reduce air polluting substances such as fine dust particles and carbon dioxide.'
In his research, Ottelé was able to experimentally confirm that plants on exterior walls do indeed absorb fine dust. 'With image manipulating software and recordings taken by an electron microscope, we succeeded in investigating fine dust particles directly on the leaves. We can also identify the size and the number of particles.' The accumulation of fine dust particles on leave surfaces is important for public health. Densely populated urban areas in particular are affected by dust particles smaller than 10 micrometres, as these particles are inhaled deep into the respiratory tract and are detrimental to health.
Ottelé confirms other potential advantages of green facades. 'Our measurements show that vegetation can also reduce ambient wind speed. The results also demonstrate that vertical vegetation has a positive effect on the insulating properties of buildings.'
The latter applies particularly to so-called living wall systems. Ottelé explains: 'There are two main types of vertical greenery: green facades and living wall systems. Facades are made green by means of climbing plants, either growing directly against a wall or indirectly by means of constructional aids. Living wall systems are integrated or prefab systems that are fitted to a construction or supporting frames in which the plants take root. Living wall systems are a relatively new and little researched technology.'
Marc Ottelé, 'The green building envelope' http://repository.tudelft.nl/view/ir/uuid:1e38e393-ca5c-45af-a4fe-31496195b88d/
M. Ottelé, MSc, M.Ottele@tudelft.nl, +31 (0)15 2787439TU Delft science information officer Roy Meijer, email@example.com,
Roy Meijer | EurekAlert!
Smart buildings through innovative membrane roofs and façades
31.08.2017 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP
Concrete from wood
05.07.2017 | Schweizerischer Nationalfonds SNF
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...
Pathogenic bacteria are becoming resistant to common antibiotics to an ever increasing degree. One of the most difficult germs is Pseudomonas aeruginosa, a...
Scientists from the MPI for Chemical Energy Conversion report in the first issue of the new journal JOULE.
Cell Press has just released the first issue of Joule, a new journal dedicated to sustainable energy research. In this issue James Birrell, Olaf Rüdiger,...
19.09.2017 | Event News
12.09.2017 | Event News
06.09.2017 | Event News
19.09.2017 | Event News
19.09.2017 | Physics and Astronomy
19.09.2017 | Power and Electrical Engineering