The task is to minimise energy consumption and potential heat losses through passive and active measures. There is enormous potential for optimisation in building physics in the two climate-relevant focus areas of the construction industry: operational and embodied carbon emissions.
There is enormous potential for optimisation in building physics in the two climate-relevant focus areas of the construction industry: operational and embodied carbon emissions. Up to 85 percent of operational emissions can be directly attributed to the field of Building Physics. Cumulatively, they result from the production of materials and components, the construction process, the product life cycle, the areas of maintenance, replacement and retrofitting, as well as from utilisation within the material life cycle. In total, operational emissions contribute nearly half of the carbon emissions of the built environment.
Hence, it is obvious why building physics is relevant to climate protection.
Climate-sensitive Building Physics is one of the greatest and one of the most important economic and industrial challenges of our time. Every stakeholder involved in the process is challenged to contribute to a solution.
Virtual Engineering not only allows static parameters to be determined. The application capabilities are far more versatile: Virtual Engineering methods can be used to test and optimise the functionality of a product, component or design under variable environmental conditions over longer periods of time. Sensor information, such as weather data or other measurement and model data, can be directly used as external parameters in the modelling process. In particular Computational Fluid dynamics (CFD) and Finite Element Analysis (FEA), thus complement conventional methods of Building Physics planning and development, such as Dynamic Thermal Models (DTM), and integrate seamlessly into existing workflows.
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Potential areas of application for CFD and FEM go far beyond the planning of buildings and quarters. Even in the early planning stage architects, designers and engineers can perform Building Physics analyses regarding the ecological, sustainable and circular economy-oriented production and utilisation of building materials and components.
CFD in particular allows complex investigations. For example, interactions of simultaneously occurring physical and chemical processes can be determined. Corresponding application fields in the area of building Physics for designing sustainable and low-energy technical building systems are almost unlimited.
Thus, CFD and FEM simulations are suitable for in-depth scientific analyses on long time scales and forensic investigations.
CFD/FEM simulations of thermal transmittance at windows and doors according to ISO 10077. Shown are the use cases D3 (left) and D10 (right), which are in excellent agreement with other benchmark models. Temperature distributions shown in the top row, the corresponding heat fluxes below.
CFD/FEM simulation of the heat conduction of a multistorey building according to EN ISO 10211 including site-specific environmental conditions. The thermal bridge induces significant heat losses on the upper floor and increases the risk of mould growth.
CFD/FEM simulation of the thermal performance of an underfloor heating system and heat distribution in a residential environment and in direct comparison with a thermal imaging camera (top).
CFD simulation of conjugate heat exchange between fluid and structure on a heat exchanger component of a passive HVAC system.
Potential areas of application for CFD and FEM go far beyond the planning of buildings and quarters. Even in the early planning stage, architects, designers and engineers can perform building physics analyses on the ecological, sustainable and circular economy-oriented production and utilisation of building materials and components.
CFD in particular allows complex investigations. For example, interactions of simultaneously occurring physical and chemical processes can be determined. Corresponding application fields in the area of building physics for designing sustainable and low-energy technical building systems are almost unlimited.
This makes CFD and FEM simulations suitable for in-depth scientific analyses on long time scales and forensic investigations.
Our Virtual Engineering services in the field of Building Physics cover a wide range and are tailored to low-energy design as well as circular economy-oriented solutions.
With holistic methods and solutions we provide support to optimise the microclimate in your specific construction project.
Building physics is not only the key to well-being and better comfort through optimised facades and building elements. Its importance is far greater: The building performance of a quarter can be aligned to achieve climate resilience.
Passive low-energy design
Passive natural ventilation
Optimisation of microclimate
Balancing daylight and heating
Heat and cooling losses
Conjugate heat transfer between solids and fluids
Surface to surface radiation
Wavelength resolved radiation
Considering the behaviour of occupants
Physiological, metabolic factors
Operative (experienced) temperature
Predicted Mean Voting PMV
Predicted Percentage of Dissatisfied PPD
Humidity / Hygrothermal simulation
Condensation / Evaporation
Consideration of site-specific weather and climatological factors
Long-term climate projections, such as RPC and CORDEX
Development of circular economy-oriented solutions for production, application, reuse and recycling of materials and components
LCA integration (Carbon Lifecycle Assessment)
Consideration of the entire life cycle and of the real value of a material or product
Development and use of sustainable building materials and nature-based solutions
Infiltration / Air tightness
Buoyancy driven flows
BuoyancyStack ventilationThermal/Solar chimney etc.
HVAC system development and optimisation
Direct simulation of weather and climate effects
Alternatively to the integration of external weather and climate data
Lightweight shading structures
Light transmittance and optical thickness
Aerosol exposure of the atmospheric boundary layer
Climatological daylight analysis
Consideration of light effects of the biological circadian rhythm (circadian lighting)
Consideration of light effects of the biological circadian rhythm (Circadian Lighting)
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Virtual Engineering for Sustainability in Planning and Product Development
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