Villa Castelli - Transformation of Historical Building into Nearly Zero Energy Building
Penna, Paola; Stuffer, Oscar; Troi, Alexandra; Carí, Valentina (2019)
Applied Mechanics and Materials 887, 148–155.
DOI: 10.4028/www.scientific.net/AMM.887.148
Peer Reviewed
What Americas Cup and a heritage building have in common They both aim at innovative technologies and cutting-edge solutions. The owner of the project, an ex-crew member of the most famous sailing match race in the world, pushed the planning team to develop extraordinary solutions for his house. The house, Villa Castelli, is an historical listed building located on the Como lake. During its history, it has been transformed many times, giving as results a non-uniform structure composed by different construction technologies. The aims of the owner were: an overall refurbishment particularly focused on energy efficiency, the exploitation of renewable energy sources based on-site production and a fixed budget. To reach these goals, the energy needs have been reduced improving the performance of the thermal envelope. Then, the building’s technical systems have been re-developed in order to exploit as much as possible available renewable energy sources. From the very beginning, it was clear that, for finding optimal solutions, a multidisciplinary approach was necessary. The design approach should be the result of a shared approach integrating different fields, such as creative design, technology, knowledge of material properties, building physics. The great synergy among building envelope retrofitting, innovative technological solutions and the deployment of renewable energy sources allows the transformation of this historical listed building into an outstanding example of a nearly zero energy building (nZEB).
The Sizing of Electrical- and Thermal Energy Storages for Buildings
Floß, Alexander; Schaub, Michael (2018)
Kongressband zur e-nova International Conference, 22.-23.11.2018 in Pinkafeld.
Körperliche Aktivität und potenzielle Korrelate bei Hämodialysepatienten
Sanftenberg, L.; van Dyck, M.; Bucksch, J.; Weber, Annemarie; Schelling, J.; Kohls, Niko; Sirois, F.; Toussaint, L.; Hirsch, J. K.; Offenbächer, M. (2018)
Sanftenberg, L.; van Dyck, M.; Bucksch, J.; Weber, Annemarie; Schelling, J....
Prävention und Gesundheitsförderung. doi:10.1007/s11553-018-0681-y.
DOI: 10.1007/s11553-018-0681-y
Peer Reviewed
New design method for spiral casings considering the properties of the impeller at design and off-design conditions and numerical verification with CFD
Epple, Philipp; Fritsche, Manuel; Steppert, Michael; Steber, Michael (2018)
Proceedings of the ASME 2018 International Mechanical Engineering Congress and Exposition 2018.
Peer Reviewed
The impact of the gas temperature and of the relative humidity on the performance of fans operating in drying plants
Fritsche, Manuel; Epple, Philipp; Delgado, A. (2018)
Proceedings of the ASME 2018 International Mechanical Engineering Congress and Exposition 2018.
Peer Reviewed
Achtsamkeit und Krebs - eine Übersicht
Gander, M.; Kohls, Niko; Walach, H. (2018)
Deutsche Zeitschrift für Onkologie, 40, 158 - 162., 158-162.
Peer Reviewed
Definition of an experimental procedure with the hot box method for the thermal performance evaluation of inhomogeneous walls
Lucchi, Elena; Roberti, Francesca; Troi, Alexandra (2018)
Energy and Buildings 179, 99–111.
DOI: 10.1016/j.enbuild.2018.08.049
Peer Reviewed
Research and development of high thermal insulation materials for the construction sector requires an accurate characterization of the wall's performance, since that is the main causes of thermal exchanges between the internal and external boundaries. This paper presents a test procedure developed within the EU Project EFFESUS for evaluating the steady-state thermal performance of a masonry wall. A large-scale mock-up of the inhomogeneous wall was tested in a guarded hot box (GHB) apparatus before and after the application of an aerogel-based material. The methodology proposed in this paper is structured in the following steps: (i) definition of the wall geometry and the percentage of stone and mortar, using walls’ photographic records and geometrical surveys; (ii) precise thermal characterization of the material used; (iii) hygrothermal assessment procedure based on infrared technology (IRT) survey, gravimetric test, and monitoring of the internal relative humidity (RH); (iv) steady-state and dynamic thermal simulation; and (v) detailed set-up of the test using the data retrieved from the thermal surveys and simulations. According to the results of IRT surveys and the dynamic simulations, the mock-up was divided into thermal homogeneous parts, verifying the uniformity of the surface temperature and the heat flux in an isothermal area. This approach was validated both for low and high energy performance walls. Results show that the thermal flux was reduced to one third after the application of the aerogel.
Achtsamkeit, eine Gesundheits- und Lebensressource -Das Geheimnis des Flow
Kohls, Niko (2018)
Erlebnistage „Körper, Seele, Geist“, Arnika-Akademie Teuschnitz, 18.10.2018.
New Optimal Fan Design Method by Matching the Spiral Casing to the Impeller at Design Point and Off Design Point Conditions (ISimT-18 Symposium)
Epple, Philipp; Fritsche, Manuel (2018)
Proceedings of the ISimT-18, Symposium on Innovative Simulations in Turbomachinery, Schloss Hohenkammer, Germany, October 15 - 16, 2018.
Ereigniskarten. Raumzeitliche Darstellungsmöglichkeiten der historischen Kartografie
Holtorf, Christian (2018)
Tagung "Die Zeiten des Ereignisses. Neuvermessung einer historischen Kategorie" am Zentrum für Zeithistorische Forschung Potsdam am 9./10. November 2018..
Warum das Soziale großgeschrieben wird? Zur Bedeutung der sozialen Perspektive in der Suchthilfe
Hößelbarth, Susann (2018)
Plenarvortrag am 08.10.2018 auf dem „Gemeinsamen Fachkongress der Deutschen Hauptstelle für Suchtfragen (DHS) und dem verband der drogen- und suchthilfe (fdr), 08.-10.10.18 in Berlin .
Achtsamkeit und Prävention
Kohls, Niko (2018)
Eingeladener Vortrag im Rahmen des Symposiums. „Krebs: Fragen und Antworten jenseits der Schulmedizin", organisiert durch das Tumorzentrum Oberfranken, Kloster Banz.
Klassisches oder digitales Stressmanagement im Setting Hochschule?
Nagel, Andreas; John, D.; Scheder, A.; Kohls, Niko (2018)
Prävention und Gesundheitsförderung. doi:10.1007/s11553-018-0670-1.
Peer Reviewed
CFD Simulation of the Gap Flow in Radial Fans with HPC
Fritsche, Manuel (2018)
2. Netzwerktreffen des BayWISS Verbundkollegs Digitalisierung (BWD), Würzburg, September 28, 2018 2018.
The “Waaghaus” of Bolzano: Energy efficiency, hygrothermal risk and ventilation strategy evaluation for a heritage building
Exner, Dagmar; Larcher, Marco; Belleri, Annamaria; Troi, Alexandra; Haas, Franziska (2018)
Conference report: the 3rd International Conference on Energy Efficiency in Historic Buildings: [Visby, Sweden, September 26–27, 2018] / edited by Tor Broström, Lisa Nilsen and Susanna Carlsten.
Open Access Peer Reviewed
Historic Building Atlas: Sharing best practices to close the gap between research & practice
Haas, Franziska; Herrera Avellanosa, Daniel; Hüttler, Walter; Exner, Dagmar; Troi, Alexandra (2018)
Haas, Franziska; Herrera Avellanosa, Daniel; Hüttler, Walter; Exner, Dagmar...
Conference report: the 3rd International Conference on Energy Efficiency in Historic Buildings: [Visby, Sweden, September 26–27, 2018] / edited by Tor Broström, Lisa Nilsen and Susanna Carlsten.
Open Access Peer Reviewed
The effect of climate change on the future performance of retrofitted historic buildings
Hao, Lingjun; Herrera Avellanosa, Daniel; Troi, Alexandra (2018)
Conference report: the 3rd International Conference on Energy Efficiency in Historic Buildings: [Visby, Sweden, September 26–27, 2018] / edited by Tor Broström, Lisa Nilsen and Susanna Carlsten.
Open Access Peer Reviewed
Hygrothermal performance of historic massive wall: when is 2D simulation necessary?
Leone, Dario; Larcher, Marco; Troi, Alexandra; Grunewald, John (2018)
Healthy, Intelligent and Resilient Buildings and Urban Environments. 7th International Building Physics Conference, 1401–1406.
DOI: 10.14305/ibpc.2018.ps20
Peer Reviewed
Contemplative techniques, mindfulness and meditation, understanding its implication for contemporary living
Kohls, Niko (2018)
The Mind, Meditation and Innovation Conference, Invited Lecture, Copenhagen Business School, 18.09.2018.
Data transmission by guided acoustic waves
Ritter, Frank; Krempel, Sandro; Tietze, Sabrina; Backer, Alexander; Wolfschmitt, A.; Drese, Klaus Stefan (2018)
Ritter, Frank; Krempel, Sandro; Tietze, Sabrina; Backer, Alexander; Wolfschmitt, A....
Sensors and Measuring Systems; 19th ITG/GMA-Symposium, Nuremberg 2018, 602 - 605.
Conventional data transmission via cable or electromagnetic waves reaches their limits in harsh or hard-to-reach environments. For example in bore hole inspection, cables can break and electromagnetic waves cannot pass different earth layers. Actual studies showing that guided waves are a possible instrument for cable less data transmission. The known technique works with frequencies below 100 kHz for a wave propagating of long distances and known time delays. This concept limits the data transmission rate to e.g. 250 bit/s at a 2m long steel pipe. Other cable less developments are also known in so-called "wall to wall" communication by means of ultrasonic sound waves. Here, frequencies of 1 MHz are used to transmit data in the order of 550 bit/s through one wall with opposing transducers. In our approach we are using guided waves with a center frequency of 1 MHz. Furthermore a sweep mode is used instead of the pulse position modulation (PPM). Thus, it is possible to be independent of a known transmitter and receiver position and thereby the knowledge of the time delay. Thereby, in contrast to the already known technology it is possible to use a two-dimensional arbitrary surface for data communication. At a first experiment, a data transmission distance of 20 cm at a 3 mm glass plate was build. One single-phase transducer is used as transmitter and two different transducers as receiver to show the independence of position of the receiver. Wave reflections at the edges of the glass plate and dispersion of the guided wave could also be eliminated by the here used algorithm of identifying the biggest amplitude of the received signal. Thereby a transmission rate of 1,5 kBit/s with good SNR could be observed.