Fire safety

Research team
We perform large-scale interior and exterior fire tests to evaluate the behavior of materials and products in a fire. We carry out tests on a medium and large scale, both inside the laboratory and outside on the experimental area. We focus in particular on obtaining the fire-technical characteristics of building products and individual objects for the purposes of mathematical modeling, indicative determination of the fire resistance of non-load-bearing building structures and determination of the reaction of facade systems to fire. We also carry out tests of the effectiveness of extinguishing and cooling with low-pressure water mist on a real scale for extinguishing and cooling with water mist or evacuating people.

We are interested in evacuating people from a confined space, be it a building or a means of transport. We organize and evaluate practice fire alarms, during which we focus both on the reaction of people to the announcement of the alarm and on the gain of movement characteristics of people. We verify the possibility of safe evacuation with mathematical models.
We verify the behavior of structures and products during a fire, the effectiveness of firefighting systems or the possibility of safe evacuation with mathematical models, and on the contrary, we use the data obtained from the performed tests to expand or verify the input parameters for mathematical models of fire dynamics.

We offer expert evaluation of buildings in terms of fire safety of buildings and consulting in the field of fire engineering (so-called performance-based design), fire legislation and testing.

Main Team Activities

  • We prioritize research and testing of specific materials, structures and systems for fire-safe buildings.
  • We conduct large-scale tests with real fire scenarios in interior or exterior conditions.
  • We determine the reaction to fire class with the Room Corner Test, where one large-scale fire test with a sample area of up to 30 m² replaces a series of normal small-scale tests in cases where it is not possible or appropriate to test the product on a small scale.
  • We perform calculations of fire resistance of structures and mathematical modeling of fire dynamics, extinguishing and evacuation of people.
  • We develop and optimize building elements from the point of view of fire safety.
  • We are engaged in consulting and advisory activities in the field of fire engineering.

Results

1

Envilop

Envilop is a proposal for a solution for a lightweight panel-type perimeter skin based on wood. The light envelope was designed as part of the Intelligent Buildings project (CZ.1.05/3.1.00/13.0283) from the Operational Program Research and Development for Innovations of the Ministry of Education and Culture, which is financed by the EU and the state budget of the Czech Republic.

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Equipment

Apparatus for indicative tests of fire resistance without static load. It is possible to test up to two walls (0.8 × 0.8 m) and the adjoining ceiling (0.8 × 1.2 m) at the same time, or it can be used to determine the behavior of structural details at elevated temperatures. Tymyfoto/Pozarnitym/04_miniFUR2.jpg
Design, organization and execution of interior and exterior fire tests of various sizes. Up to 30 thermocouples, 3 radiometers and 3 pressure sensors can be connected to the mobile measuring center at the same time for determining the gas flow rate during a fire. The laboratory equipment also includes corresponding sensors (shell and cable temperature sensors, radiometers in the range of 20,50 and 100 kW/m2). Tymyfoto/Pozarnitym/01_laborator.jpg
Multifunctional experimental area with floor plan dimensions of 3 × 3 ms with forced smoke and heat extraction and basic chemical analysis of waste products (O2, CO2 and what). Tymyfoto/Pozarnitym/03_nabytkovy_kalorimetr.jpg
Gas burner and supporting frame for testing the reaction to fire of medium-sized facades according to the ČSN ISO 13785-1 standard. Tymyfoto/Pozarnitym/05_CSN_ISO_13785-1.jpg
Test equipment for testing the effectiveness of fire extinguishing systems for extinguishing engine compartments of buses according to Annex 13 of the Regulation of the UN Economic Commission for Europe No. 107 Tymyfoto/Pozarnitym/06_BUS_haseni.jpg
Gas burners of various sizes with the possibility of regulating the heating output from 1 to 300 kW. Tymyfoto/Pozarnitym/07_horaky.jpg
KASPO K30 gas light infrared radiator with a radiating surface size of 440 x 440 mm with a nominal power of 30 kW. Tymyfoto/Pozarnitym/08_salavy_panel.jpg
Floor scale PV14 and digital indicator Dini Argeo DFWL for measuring the weight loss of burning objects. The scale has dimensions of 1000 x 1000 mm, weighing capacity of 100 kg. Tymyfoto/Pozarnitym/09_vahy.png
The apparatus for extinguishing with low-pressure water mist consists of a DAB KVC 85/120 pump with a maximum operating pressure of 13 bar, distribution pipes and various mist nozzles, mostly from Telesto Mist Systems. Tymyfoto/Pozarnitym/10_mlha.jpg
Nicolet Antaris IGS FTIR infrared spectrometer for the analysis of the toxicity of combustion products during fire tests. Tymyfoto/Pozarnitym/11_FTIR.png
Portable flue gas analyzer TESTO 350 with the possibility of connecting up to six different single-type gas sensors. Currently, the device has sensors installed to detect NO, NO2, SO2, O2 and what. Tymyfoto/Pozarnitym/12_TESTO.jpg
Large-scale fire test of wall and ceiling surface treatments in the RCT room (test according to ISO 9705 or ČSN EN 14390). Tymyfoto/Pozarnitym/02_RCT.jpg