RNDr. Mária Skřínská, Ph.D.

The goal of this project, using a survey questionnaire, was to determine the comparison of acceptability related to commonly occurring risks to which people voluntarily subject themselves; and, which of those risks are considered acceptable (mainly the first and the third question). It further deals with acceptability of risks posed by professional activities (specifically the second question); or, with less frequent risk occurrences which are posed by the hazards of Nature (the fourth question). The conclusion stemming from the results is that, in public’s view, professional risks require roughly twice the level of reduction as opposed to the risks not related to the workplace.

Příspěvek poskytuje přehled některých přednášek, které byly prezentovány na mezinárodni konferenci Ochrana obyvatelstva – Nebezpečné látky 2017.

Cílem příspěvku je (i) shrnout základní požadavky kladené na územní a havarijní plánování z pohledu prevence závažných havárií, (ii) představit možná řešení propojení územního plánování a prevence závažných havárií (iii) a na příkladu požáru kaluže porovnat navržené řešení s přístupy v Itálii a Španělsku. Dílčím cílem je porovnat složitost hodnocení vybraných evropských metodik pokud jde o jejich aplikaci v případě stejného havarijního efektu jako důsledku úniku nebezpečné hořlavé látky, a poukázat na nutnost posoudit možná rizika z pohledu územního plánování.

If containment of a flammable liquid is lost and the consequent vapor-air mixture is ignited, estimation of radiation from thermal radiation generated depends upon number of factors. The point source model for the prediction of thermal radiation from liquid pool fires was adopted for the evaluation of the effect distances of Pool Fire we modified the simple point source model for calculation of the effect distances directly from the mass of flammable liquid in Pool Fire. The point source model considers the heat source (i.e. the flame) as a point that emits in all directions. The original model considers the heat received by the observer as a fraction of the heat of combustion multiplied by the burning rate. This heat decreases with the square of the distance from the source and with the transmissivity of the ambient air. In the presented model we implemented different possibilities of heat fraction calculation and we introduced the flame length in order to calculate the point source-target distance. Finally we do not consider the atmospheric stability as s constant but we introduced simple mathematical correlation and compare both the model with and without this parameter. The modified relationship was compared with experimental results and discussion of results is performed.