The spillages due to collisions related incidents involving the wagon tankers, which carrying hazardous materials (hazmat), can be followed by fires or explosions, presents a severe threat to the safety of residents and nearby buildings. In this study, ALOHA and PHAST was used to evaluate the level of thermal radiation at different distances from the place of accident. Discussed scenario analyze a leakage of kerosene from a tanker wagon, from different opening diameters, where is formed a pool fire. As an assumption for location of possible accident, parts of the railway where it can be expected a large number of people and vehicles were taken. For study area was chosen city of Niš, Serbia.

Household furniture usually contains at least partly some kind of wood material which brings additional fire hazards in enclosures. The number of different wood products is used in furniture manufacture and each of these classes has different flammability characteristics. In this work, we conducted a number of experiments to assess these characteristics for solid oak and fir board samples. Experiments were conducted on mass loss calorimeter for heat fluxes of 30 40 and 50 kW/m 2 . Obtained results were in close agreement with the literature findings.

Effluents generated during the flaming as well as non-flaming burning of materials may be regarded as the main cause of death and injuries from fires. The structure of fire gases highly depends on the physical condition and chemistry of fuel as well as burning conditions. During the combustion of organic materials, complex mixtures of fire gases may be created. This paper investigates fire effluent yields during the well-ventilated burning tests of lumber products - board samples from two common wood species: oak and fir. Experiments were performed in custom-designed laboratory installation hyphenating mass loss calorimeter (with chimney and thermopiles for heat release rate measurement) and FTIR gas analyzer for subsequent on-line analysis of evolved fire gases. Tests were conducted with two different heat fluxes: 30 and 40 kW/m2 . The focus was on continuous emission monitoring of three principal fire gas components: H2O, CO2, and CO with a particular emphasis on CO rates.

No abstract

Industrial activities have to comply with protective measures. For this reason, it is essential to know the maximum allowable concentration of chemical hazards (gas, steam and dust) which can occur in the workplace. In wood industry, a large amount of wood dust is produced during the mechanical wood processing. Unless adequate measures for its removal are undertaken, there may be potential hazards for the workers’ health. The research has been carried out for purpose of determining the level of dust emission in different machines in wood processing workshops with no de-dusting system included, by measuring concentrations of wood dust produced during the processing of wooden material. Key words: wood processing, wood dust, concentration measuring