Project Image Pool

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Terms of use: The pictures on this site originate from the projects in the frame of the programmes City of Tomorrow, Building of Tomorrow and the IEA Research Cooperation. They may be used credited for non-commercial purposes under the Creative Commons License Attribution-NonCommercial (CC BY-NC).

Calculated heat sources and sinks for the digital twin

Time series of an experiment where the digital twin was fitted to the measurement data using forcing terms. The graphic shows the required "Forcing Terms" = heat sources and sinks. See also the other graph with the associated measured and simulated temperatures during the experiment.

Façade office building H2

View of the facade of the H2 office building in Vienna, where a digital twin of a cooling system and a model floor was tested.

residential building St. Paulus

residential building St. Paulus

residential building St. Paulus, northwest view

residential building St. Paulus, northwest view

exterior view, west view

exterior view, west view

view from the roof terrace, north-east view

view from the roof terrace, north-east view

Domains of energy-oriented urban planning

Domains of hierarchically structured energy-oriented urban planning

Enerspired Cities metadata portal

Metadata portal of datasets researched in Enerspired Cities and identified as relevant to energy-oriented urban planning.

Central energy database - Land Salzburg

Relevant data sets that are compiled in a central energy database for the province of Salzburg

Enerspired Cities - Frame

Graphic of content and services developed in Enerspired Cities embedded in the context of the user community

Overview-panel of the Liz Christy path

The Liz-Christy-path connects eleven stations of the edible Seestadt in Vienna- Aspern. It states good practice examples and gives inspiration and courage for establishing edible urban gardening projects.

5th Salon Essbar

On the grounds of the (former) vienna.transitionBASE beside Aspern Seestadt the 5th Salon essbar took place in Juni 2020, a network-meeting for urban gardning activities and platform for interested people.

Logo of essbare Seestadt

Logo of the edible Seestadt - the corporate design of the research project was created by the co-founder of the new, citizen-driven association SeeSadtgrün. The association takes over the projects and agendas of the research project and acts as a bottom-up initiative that can withstand the complex requirements of urban gardening in Vienna.

Photonic Cooling measurement setup with parabolic reflector

An example of a measurement setup used during the project photonic cooling employing a parabolic reflector. Reflector-Sample-Peltier-module unit in detail (left), complete measurement setup (middle) as well as an overview of the surroundings next to the measurement setup. Image taken on 17.5.2017, Weiz.

Estimated annual peak demand for air conditioning in Vienna for different climate scenarios

Estimated annual peak demand needed for air conditioning in Vienna according to the model calculations applied for the climate scenario RCP4.5 (left) and RCP8.5(right). Data points represent the average annual peak demand, the grey area the uncertainty with a 95% confidence interval and the dashed line the peak demand in Vienna for 2016.

Dissipated power density in dependence of the temperature difference between sample and its surroundings

The figure shows the dissipated power density in dependence of the temperature difference between sample and its surroundings. The highest power density was observed when no design element blocking the radiation of the sample was used. In this case the heat was transferred from the sample to its surroundings by heat conduction, heat radiation and heat convection. Applying a heat radiation blocking element led to a significantly decreased power density as heat was transferred only by heat conduction and heat convection. The intensity of the dissipated heat radiation was evaluated by calculating the difference of the power densities observed for the two different situations (i.e whether the heat radiation blocking element was used or not).

Outdoor use of a Photonic Cooling functional model

Image taken on 04.09.2017, Weiz.

Final workshop ÖKO-OPT-AKTIV

Presentation of Valentin Kaisermayer about the results of the project ÖKO-OPT-AKTIV

Superordinate structure of the energy hub

Proposed structure of the interaction between individual building control units and the controller of the energy hub. The controllers used are predictive, optimizing controllers (e.g. model predictive controllers, MPC).

Load shifting potential with EMS

Continuous lines for the first quarter (heating demand) with component activation. With EMS (right), higher outputs are in principle demanded less frequently. Since all power above the maximum power of the heat pump has to be provided by the more expensive district heating, costs can be reduced. The blue area above the heating demand curve represents waste heat from the heat pump, since cooling demand also occurs in the first quarter, which must be provided by the heat pump / chiller.