Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: evacuation safety

Sortuj według:

Ogranicz wyniki do:

Skuteczność działania systemów różnicowania ciśnień w klatkach schodowych budynków wysokich

Fryda Marcin, Brzezińska Dorota

Materiały Budowlane

2022

nr 7

11--16

Zadaniem systemów różnicowania ciśnień w klatkach schodowych jest zapobieganie przedostawaniu się do nich dymu. Celem przeprowadzonych badań było określenie, jaki wpływ na warunki utrzymania nadciśnienia ma zmiana szczelności obudowy klatki schodowej. Wykazano, że zastosowanie klapy rozszczelniającej pozwala na znacznie bardziej precyzyjną i zdecydowanie szybszą regulację nadciśnienia wytwarzanego w klatce schodowej niż przy dotychczas stosowanych rozwiązaniach.

The purpose of pressure differential systems in staircases is to prevent smoke from entering them. The aim of the research was to determine what influence on the conditions of keeping the overpressure has a change in the airtightness of the staircase casing. It has been shown that the use of an unsealing flap allows for much more precise and much faster regulation of the overpressure generated in the staircase than with previously used solutions.

Comparative analysis of assumptions for numerical simulation of the effects of fire - safety of evacuation from the building structure

Dorsz Adam, Rusowicz Artur, Prawdzik Adam

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych

2020

Nr 4

1--15

Ensuring a safe evacuation for the users of a building is a major goal when designing structures and systems protecting them against the effects of a fire. The article discusses the safety assessment for evacuation of users from a building exemplified by an analysis using computational fluid mechanics to reproduce the environmental conditions during a fire. It presents a way to evaluate the possibility of a safe evacuation of users from a facility by indicating the criteria for the assessment of conditions on the evacuation routes during emergency evacuation. In order to verify the criteria for assessing the evacuation safety, a three-dimensional model of the object under consideration has been prepared, for which a dedicated calculation solver of Fire Dynamic Simulator fluid mechanics has been used to recreate the fire conditions in the building. Prepared calculation model takes into account both the development of a fire on a given floor of the building and the simulation of the designed fire ventilation system in operation. In the paper the authors compare the assumptions used to create a calculation model and analyze their impact on the assessment of evacuation safety. Comparative analysis of the assumptions used to prepare the fire model allowed to draw conclusions particularly important for the people evaluating the evacuation safety on the basis of the analysis of the operation of fire ventilation systems using the computational fluids mechanics.