Účinky teploty na charakteristiky výbuchu dvou primárních alkoholů s krátkým řetězcem v uzavřené komoře

Abstract

VAVŘÍK, Tomáš. Temperature effects on explosions characteristics of two short-chain monobasic alcohols in a closed-space chamber. Ostrava, 2015. 76 p. Diploma thesis. VŠB - TU Ostrava, Faculty of Fire Engineering. The maximum explosion pressure, pmax, the maximum rate of explosion pressure rise, (dp/dt)max, the deflagration index, KG, lower explosion pressure, LEL, upper explosion pressure, UEL of methanol / air and 1-propanol with air mixtures at initial temperatures 25 °C, 50 °C, 100 °C and pressure 101 kPa and 2-propanol with air mixture at initial temperature 25 °C are presented in this diploma thesis. Individual aims are: to create suitable predictions of measured explosion parameters, to describe experimental apparatus for measurement of explosion parameters for liquids - air mixtures, to optimize measuring systems of the explosion chamber for the alcohol-air mixture and to analyze the dependence of the explosion parameters on the initial temperature. This concept in the frame of fire-safety prevention will help to assign specific qualitative and quantitative parameters for the explosion characteristics so that it can subsequently can be used to estimate the dangerous effects of the pressure wave in specific cases (life threats or health of exposed persons). A good knowledge of explosive parameters can also make a significant contribution to solving defined problem, provide a number of information for technical, and fire safety practices that characterize the magnitude of the vapor cloud explosion impact on its surroundings.