Reduced energy costs + increased safety

Innovative solutions for lift shaft smoke extraction with BlueKit.

BlueKit systems permanently reduce building energy costs and maximise safety at the same time. The idea behind this is both simple and ingenious: permanent openings in the lift shaft remain closed and open only in case of fire. This decreases heating costs. If the shaft openings are open continuously, as is the case in conventional configurations, heating energy escapes in an uncontrolled manner due to the chimney effect in the shaft. Sealing the top of the shaft also increases comfort in the building by eliminating the unpleasant draught effect on the inside. The BlueKit system is one of the most advanced shaft smoke extraction solutions in the world.

Potential for reducing the heating energy costs for the entire building by up to 7 %
Closing of permanent openings at the top of the shaft
Reliable smoke extraction in case of fire
System pays for itself after only a few years

Increases living and working comfort by reducing the draught effect

BlueKit website

With and without BlueKit: a comparison

A great deal of valuable heat energy escapes through the permanent opening in the lift shaft. This is not only harmful to the environment, but also takes its toll on the wallet.

The BlueKit sealing element prevents heat energy escaping unnecessarily. This means that several thousand euros can be saved annually and emissions reduced. The element opens in case of fire to allow smoke to escape.

An efficient system consisting of only a few components

1 Ventilation Element

Stems energy losses due to sealing of the opening in the lift shaft. Ventilates and removes smoke if required.

2 Controller

Receives and forwards the trigger signal for opening the ventilation element.

3 Lift-Status-Transmitter

Monitors air quality in terms of CO2 and humidity directly at the lift car. Additional monitoring of movement or malfunctions of the lift. A ventilation signal is sent to the central unit if required.

4 Smoke Vent Button

Manual triggering of a ventilation or smoke extraction command and display of the system status.

5 Smoke Detector

Provides smoke detection throughout the entire shaft height and forwards the signal to the central unit or radio and connection unit.

BlueKit in the Kontorhaus Alsterufer, Germany

The prestige project Kontorhaus Alsterufer 1-3 in Hamburg has already received the LEED Gold award for ecological construction in the planning phase. D+H plays a role in this: the new building has five lift shafts, each fitted with an BlueKit system. The Lift-Status-Transmitters (LSTs) are installed directly in the lift cars and ensure ventilation according to requirements when in operation. For example, if the CO2 value in the shaft increases, the ventilation flaps in the top of the shaft open automatically. If the acceleration sensors on the lift cars do not detect any motion for a certain period of time, for example after hours or on weekends, the flaps stay closed.