Introducing the Dorn Brno project

Induction units used for air-conditioning of office space in the building, which in contrast to conventional air-conditioning units do not contain motor elements. This ensures they do not break down and have low noise and running costs. The design of the units is also tailored to the layout, guaranteeing optimal speed of air flow and maximum comfort in the work space. Induction units are the latest trend in new contemporary administrative buildings.

Secured using central ventilation units, these are designed using highly efficient rotary recovery units with temperature and humidity heat transfer, securing maximum savings in running costs for heating, cooling and humidifying. The units are designed with sandwich panels and are certified by the EUROVENT institute, which places high demands on the precision and quality of design. The equipment’s components are made by leading global manufacturers, guaranteeing that strict European energy consumption directives are met.

A cutting edge ultrasound humidification system with water treatment is used for humidifying the air, which also guarantees low running costs and energy consumption. Compared to standard air humidification systems with electric generators, it costs up to 8x less to run.

Sanitary facilities on each floor are centrally ventilated using a fan with an EC motor, which as a result brings high comfort to users – no noisy fans on floors, less motors in the building – a source of break-downs. The fan operation is fully controlled according to immediate requirement, which leads to reduced running costs for shared spaces.

Each sanitary facility contains a sensor tap at basins which brings up to a 60% saving in water use compared to standard taps.

In order to reduce rainwater runoff, a large part of the roof is covered by intensive and extensive greenery. In such roofs, rainwater is collected in accumulation takes and subsequently used by irrigation equipment and for supplying water features with water.

Management of access of authorised persons into the building and functional parts of the building is dealt with using an electronic access system. Access is controlled with chip cards. Visitor access to the building and functional units of the building will be managed using a button panel with voice and camera system. All voice and video transmissions in this system will be transmitted in digital form (i.e. VoIP, IPCCTv). You will be able to receive voice from the panel and display the view from the panel camera from any PC or IP telephone within the particular building functional unit.

The whole of the building is equipped with a Fire Alarm System (FAS) and evacuation PA system. The building’s security is assured with a camera system (closed circuit television continually monitored by building security guards) for spaces around the outside of the building, at access routes and entrances to the building and within reception.

Voice services and data services connected to the internet will be secured using FTTx technology (optic fibres). The building is linked to the optical fibre network of operators of electronic communication networks.

The building will be equipped with a modern, environmentally-friendly source of heat and cooling. The primary source of heat and cooling will be a ground/water Viessman Vitocal heat pump with total output of 430 kW. This installed output is sufficient for most of the year. The heat pump will draw energy from 47 geothermal underground boreholes located under the building on the land where the building is being constructed. A heat exchange station will be used as an additional energy source to cover the building’s energy needs during extreme temperatures, and this uses heat supplied by the city as its primary energy source.

Compared to traditional sources of heat and cooling, this solution exhibits energy savings of up to 50%.

Lighting using LED technology will be used throughout the DORN building. Compared to other technologies, LED lights have low energy consumption (approximately a tenth compared to traditional bulbs, and roughly a third compared to compact bulbs). LED technology offers one of the most efficient ways to turn electricity into light – with a long lifetime (LED lifetime is approx. 25 x longer than for traditional bulbs, 10x longer than compact bulbs). Lighting will be controlled with an overarching building system linked to light intensity sensors for a particular space, meaning the intensity of artificial lighting will be regulated to ensure the required lighting value is maintained (maximum energy savings).

During a power cut, selected circuits and floor sockets for separate office workplaces will be powered using the building’s own diesel generator (back-up power time up to 8 hours).

All windows in the building’s offices (Floor 2 – Floor 12) are equipped with exterior shutters across the windows powered by electric motors. They are controlled by the building’s control system in accordance with a sunlight sensor (with the option of manual setting).

individual temperature management (heating/cooling) in each office

intelligent lighting management with option for individual setting

intelligent exterior shutter management with options for individual setting

fully automated heat and cooling source management and hygienic air exchange to ensure energy efficient operations

single software for managing primary technical and technological sections of the building, meaning that all technologies communicate with each other creating great opportunities for flexibility and useful value to users

high user comfort, individual setting available to users, modern design for control features in offices

simple and intuitive control using local features, simple options for setting and selecting the priority of user requirements/automatic functions

automatic management systems for all technologies installed in the building built on a modern platform with the use of elements from leading global manufacturers

automatic central technology management system concept ensuring energy efficiency and savings in running costs

central visualisation for the whole building management system with clear and simple technical management through a dispatcher