Method simulation in the Twin²Sim simulation building

Methods

Methods

Our methods provide the essential overarching approach to investigation and problem-solving, alongside tools such as specialized software and lab equipment.

Twin²Sim office building

Living Lab Twin²Sim and Equipment

Living Lab Twin²Sim and Equipment

Our research and development equipment includes specific software, measurement technology and our Living Lab Twin²Sim.

Laboratory research and manipulation

Lab and Handling

Lab and Handling

A multifunctional small-scale lab, storage areas, and the Twin²Sim handling hall are essential for supporting day-to-day operations.

Methods

Research and development require methods: research to prove or disprove hypotheses, and development to create solutions, products, and services. We continually adopt new methods based on existing expertise and on the current state of the art, aligned with the research or development questions at hand. As a result, our methods portfolio is highly dynamic. The overview below describes our current standard methods:

Energy Systems

  • Building simulation for modeling and analyzing building envelopes and building services at a wide range of levels of detail
    • Building energy use
    • Impact of different materials
    • Comfort
    • Summer overheating
    • Energy Flexibility
  • Monitoring and data science
    • Collection of measurement data, taking measurement errors and confounding variables into account
    • Analysis of measurement data, including pseudonymization when needed
    • Digital twins (simulation models) of buildings, technical installations, and their system components
    • Model validation with measurement data
    • Data science methods
  • Automated generation of simulation models
    • Analysis of large datasets from simulation and measurement using artificial intelligence methods
    • Fault detection and analysis
    • Maintenance information
  • Analysis of fluid flows using CFD simulation
  • Prototype and test planning for physical and virtual prototypes (digital twins) for experimental investigations in the Twin²Sim experimental building with its façade test rig

Building Envelopes and Building Systems

  • Systematic, criteria-based analyses and comparisons for (multifunctional) building and building-envelope systems
  • Requirements-oriented, principle-based system development for (multifunctional) building and building-envelope systems
  • Variant development and parametrization for (multifunctional) building and building-envelope systems
  • Hygrothermal and thermal building-component simulation (2D, 3D in development)
  • Mechanical FEM analyses of small building components (in development)
  • Development and design of (multifunctional) building and building-envelope systems
  • Analysis of functional and structural parameters for the systematic development of building components and construction details for parametric 2D and 3D digital models
  • Building and building-envelope system development
  • Prototype and test planning for physical and virtual prototypes (digital twins) for experimental investigations in the Twin²Sim experimental building with its façade test rig

Settlement Systems

  • Applied Geographic Information Systems (GIS) processing and modeling
  • 3D and 4D geospatial data infrastructures, data standardization, and data harmonization
  • Development of spatial indicators
  • Development of technology-based planning tools
  • Cartographic visualization, 3D and 4D visualization (web cartography, dashboards), and web application development
  • Interactive data visualization: dynamic data queries and charts

Living Lab Twin²Sim and Equipment

Living Lab Twin²Sim

Twin²Sim is an experimental building operated by Salzburg University of Applied Sciences at the Kuchl campus. It consists of a building-envelope test rig, an experimental building, and a handling hall.

The test rig supports holistic multiphysics analysis of building envelopes and building services. Short-term investigations (3 to 9 months) at the building-envelope test rig can be combined with long-term investigations of the same prototypes in the experimental building.

The experimental building also serves as an office building and includes four test rooms and a multifunction lab. Two test rooms primarily support investigations of building services systems and their effects on people and space. In the other two test rooms, we can fully dismantle and replace the façades with units that match the dimensions used at the test rig. This allows test specimens to be examined over longer periods (several years) in interaction with space and its users.

A fifth room serves as a multifunction lab for small-scale tests and measurements on small prototypes or devices.

More information about Twin²Sim is available here:

Scientific Software

Building Physics

  • GEQ (energy performance certificate software)
  • WUFI 2D (hygrothermal simulation)
  • HTflux (building-physics software for high-resolution 2D simulations of heat and moisture transport)

Mechanics

  • Autodesk Inventor (in development)

Life Cycle Assessment

  • openLCA

Building Simulation

  • IDA Indoor Climate and Energy (IDA ICE) (detailed, dynamic, multi-zone simulations of indoor climate and whole-building energy use)

Flow Simulation

  • Ansys Fluent

3D Freeform Modeling and Algorithm Editing

  • Rhino
  • Grasshopper

Geoinformatics and Spatial Simulation

  • ArcGIS Enterprise
  • FME
  • QGIS

Measurement

Acoustics

  • Sinus Soundbook
  • Messmikrofone
  • sound sources: Dodekaeder und Normhammerwerk

Thermal comfort

  • Thermal comfort measurement stands (Testo, Almemo)
  • Additional measurement equipment

General measurement equipment

  • Measurement kits for capturing digital and analog signals with integration into the central measurement database
  • Almemo measurement devices with integration into the central measurement database
  • Testo measurement devices
  • Calibrated Fluke multimeters
  • Gossen calibrator for voltage, current, and resistance values
  • Sensors for radiation; heat flux; air, fluid, and surface temperature; air, material, and surface humidity; flow; displacement and deformation, current, and voltage
  • Thermal imaging cameras

Monitoring:

  • Detaillierte Monitoring-Systeme auch mit kundenspezifischen Regelungsstrategien

Calibration:

  • Wet- and dry-block calibrator for temperature sensors and the temperature sensor in combination probes
  • Calibration of humidity probes and humidity sensors in combination probes in climate chambers, and heat-flux sensors on a plate heater (in collaboration with the Department of Design and Green Engineering at Salzburg University of Applied Sciences)

Lab and Handling

Lab

Integrated into our Living Lab Twin²Sim is a small multifunctional lab for small-scale preliminary tests, for calibrating and function-testing sensors, and for preparing experiments. Two lab benches provide the working environment.
For larger reconfigurations in building-integrated monitoring, control, and automation, as well as for field installations, programming tasks can be carried out individually or in groups.
For group work, including with external partners, the space provides appropriate communications equipment, including a room camera and microphones and a large-format display.

Handling

Storage areas in the lab and on the first floor of the handling building are essential not only for measurement equipment and supporting tools, but also for storing small prototypes, measurement distribution boxes, and similar items that may be needed again during the scientific evaluation of experiments.
In the handling hall within Living Lab Twin²Sim, larger tests are prepared or carried out. It primarily serves as a workspace and storage area for large building-envelope prototypes (test specimens), for installing and function-testing monitoring, control, and automation equipment before mounting it at the test rig, for removing installations after disassembly, and for partial dismantling of prototypes, especially for subsequent damage inspections.