Passive Design

Buildings play a major role in the generation of greenhouse and ozone depleting gases. Knowledge and understanding of the physical principles associated with building performance are crucial for the development of effective strategies aimed to mitigate global warming and climate change globally. Powerful computational tools are now available to accurately simulate the overall performance of buildings and urban spaces from both the energy consumption and occupant thermal and visual comfort perspectives. Eosis proactively and dynamically analyses possible strategies for improvement through energy simulation tools to inform design decisions.

Passive design strategies enable the creation of good environments and at the same time eliminate the need for mechanical cooling and heating systems. They can be implemented in most climate zones provided the understanding of the specific needs and possible interactions between the building and its context. Solar, thermal, airflow and daylighting studies are carried out to assess whole buildings and selected spaces. For this, we use reliable climatic data and deeply analyse occupancy schedules, usage of appliances and other operational characteristics to ensure that the building will cope with daily and seasonal variations.

Envelope Assessment

The envelope of a building is the main barrier between indoor and outdoor spaces. Heat exchange through this spaces drives thermal comfort conditions. Such exchange is analyzed using thermal simulation software both to define individual transmittance values (U-values) of construction assemblies (walls and windows) and to analyze the thermal interaction between each other.

Daylight Strategies

Daylight access must be ensured in all occupied spaces of a building. Health and productivity of building occupants  can be drastically improved if adequate daylighting conditions are provided. We carefully analyze the relationships between solar radiation and daylight to reach a balance point where we provide sufficient daylight while successfully protecting the building from undesired heat gains and glare.

Solar Radiation Studies

Solar radiation accounts as the largest heat gain for most buildings in our climate. Hence the need to protect buildings from it to prevent undesired gains that could affect thermal and visual comfort conditions. Understanding of solar movement relative to our buildings is fundamental to the design of suitable solutions. Solar radiation access studies can be carried out on both, facades and interior floor plates of  buildings.

Passive Ventilation

Fluid dynamics in buildings and open spaces are very complex to understand without the help of CFD simulation. Successful passive ventilation strategies depend on a number of physical, thermal and pressure conditions than vary every second. We understand the core principles of this. We propose innovative solutions to maintain and improve occupants wellbeing.