Role of FACEDE in Zero Energy Buildings
40% of the world's energy is consumed in buildings, approximately 60% of this energy is spent only for heating, cooling, ventilation and lighting of buildings. Almost 50% of the total undesired harmful CO2 production is due to heat flows and losses.
In Zero Energy Buildings (SEB), a very low amount of energy is needed for heating, cooling, lighting and other consumption, and it is possible to meet all of this need from renewable energy sources. Thanks to SEBs, the amount of carbon dioxide emission released can be reduced to zero or negative values on a yearly basis.
Net Zero Carbon Buildings Commitment of the World Green Building Council (WGBC); to direct businesses, organizations, cities, countries and regions to the target of Net Zero Carbon for all buildings by 2050. It aims to reduce global warming below 2 ° C and to reduce operational emissions in buildings, which are the reason for 40% of energy-related CO2 emissions.
Zero Energy Buildings include renewable energy systems that produce sufficient energy to meet their remaining energy needs while reducing energy consumption through energy efficiency. In cases where the energy needs of the building cannot be met with renewable energy generation, energy produced from traditional sources (natural gas, electricity, etc.) can be used.
Energy efficiency measures include design strategies that reduce energy demand such as exteriors with high thermal insulation performance, natural ventilation, use of daylight, solar control and shading equipment, air tightness systems, appropriate window, profile and glass selection, and passive heating with solar. The MN 50 facade system can meet the aforementioned high thermal insulation with a Uf value of 1,4 W / m2K. The savings achieved with the MN 50 facade system with low energy consumption can easily reduce the return time in the cost of the facade.
Providing natural ventilation, MN 50 opening vents provide a balance of heat and humidity thanks to the ease of direct access to fresh air. Efficient air exchange can be achieved by performing controlled air exchange at the right time and in the right amount by means of energy transfer without losing energy.
DS77 outward opening hidden vent windows used in MN 50 façade system, DS70 inward opening windows, as well as DS50 ventilation flaps with 13 cm option, safe and natural ventilation can be provided. In addition, thanks to the automatic opening motors included in the opening systems and the automation system controlling these motors, the ventilation heat losses of the MN 50 facade system can be reduced up to 30%.
MN 50 system can minimize energy losses due to infiltration or exfiltration, thanks to its high air tightness class that allows maximum 0.29 m3 / h.m2 air flow at a building height of 100 m and above.
The intake of natural daylight provides optimum lighting conditions while at the same time reducing the need for artificial lighting. Optimum energy consumption, comfort and well-being can be achieved at the same time.
Solar control and daylight control, MN 50 can be used in silicone, and cover-capped systems, with different thicknesses from 24 mm to 54 mm, Ug value from 0.5 to 1 W / m2K, g value from 44 to 60, LT value from 56 to78. Thanks to the glass and facade, it can increase the energy performance of the building facade by up to 60% by reducing the heating and cooling energy consumption as well as the artificial lighting requirement.
Designers can take advantage of dynamic light and energy filters by choosing MN 50 system profiles integrated with photochromic or electrochromic dynamic glazing that respond to changing daylight levels.
Thanks to the MN 50 façade system where shading equipment can be mounted, solar control can be increased and thus the building cooling load can be reduced by 8-10%, thus providing additional performance gains.
After the building loads are reduced, the loads should be met with efficient equipment and systems (energy efficient lighting and high performance heating, cooling, air conditioning devices). While photovoltaics (PV) integrated into the MN 50 facade system can be used in cold wall and spandrel sections, energy production can be increased by using solar water heating and wind turbines in the appropriate parts of the building. Heat pumps can be used to increase energy efficiency. Significant advances in Building Integrated Photovoltaics (BIPV) has been seen in design and manufacturing that increase efficiency and reduce costs. Choosing the PV type to be used in the MN 50 facade based on the efficiency at certain temperatures, taking into account the orientation, slope and cleaning regime of the building facades, the optimization of the solar effect will increase the electricity generation to be obtained.
Energy modeling of the MN 50 facade system, which can be applied specifically to the project, provides valuable information about the critical components in the design of energy efficient buildings. In addition, building structure information modeling plays a key role in the project as BIM (Building Information Modeling) can regulate various aspects of the design process in order to improve the performance of the building envelope. For this purpose, MN 50 facade system BIM models, especially bimobject.com, can be used easily under the interal brand. BIM will offer many advantages for tracking maintenance and replacement of various facade components and capturing performance data after commissioning. In order to monitor the energy consumption of the building effectively, the building can be equipped with automation and control systems.
Depending on the building design, the MN 50 façade system is suitable for building vertical gardens and can have numerous potential benefits, such as improving air quality by generating oxygen, absorbing harmful gases from vehicles and capturing dust. It is obvious that this will provide many positive psychological benefits for the building occupants.
The MN 50 façade system can also be equipped with Artificial Intelligence and Internet of Things systems, allowing each of the modular elements of the façade to adapt to how the building is used and external weather conditions in real time. In this way, the building envelope "intelligently" arranges the energy generated by the solar panels, storing and natural light, etc. The shading elements of the facade can be made to move to regulate it.