Explosion protection ExProtect©

Answers to frequently asked questions about applied explosion protection

  • ExProtect© Version 5.0.0
    Projekt G-05-9802

The development of the ExProtect software was based on the findings of an extensive investigation carried out by FSA regarding the mechanics of explosion doors and lids. The user-friendly software makes the findings accessible to food industry operators and designers. The regulary updated software consists of five modules SIMEK, STS, Vent, Vessel and BeVent.                                          

  • Fig. 1: Time dependent force course at the hinges of a round explosion door
    Fig. 1: Time dependent force
    course at the hinges of a round
    explosion door

SIMEK calculates the time dependent force course which acts at the hinges ropes of the explosion doors and lids during the venting process of silos or vessels. (Fig. 1). Afterwards a subroutine offers the possibility to adjust the hinges or the steel cables according to the occurring load. In case the venting device is weakly anchoring (demolition) the trajectories of these elements can be calculated. Furthermore it calculates the venting capability of the venting device, the reduced overpressure and the reduced rate of pressure rise.

  • Fig. 2: Input window of the STS ExProtect module
    Fig. 2: Input window of the
    STS ExProtect module

STS calculates the most likely and the maximum flight range of debris when large parts of buildings or vessels are destroyed by the effects of dust explosions. Fig. 2 shows the input window of STS. In this example of a cylindrical vessel the yellow illustrated surface is blasted out from the vessel wall.

  • Fig. 3: Calculation of the venting area according to EN 14491 of 2011 for a 150 m³ silo with Vent
    Fig. 3: Calculation of the venting
    area according to EN 14491 of
    2011 for a 150 m³ silo with Vent

Vent is designed for the calculation of pressure venting areas or reduced overpressures in explosion hazardous rooms and silos (Figure 3). The calculation methods are based on formulas known from relevant literature.

The following methods are included:

  • DIN EN 14491: 2012 
  • DIN EN 14994:2007
  • VDI 3673:2002 und 1995
  • NFPA 68 Edition 2007 und 2002
  • Formulas according to Prof. Dr. S. Radandt
  • Fig. 4: Dimensioning of a callote for a pressure vessel
    Fig. 4: Dimensioning of a callote
    for a pressure vessel

Vessel is designed to support the dimensioning of pressure vessels based on known methods of relevant literature (Fig. 4).

  • Fig. 5: Input window of the BeVent module of ExProtect.
    Fig. 5: Input window of the BeVent
    module of ExProtect.

BeVent is a module for calculating the necessary vent area for bucket elevators (Fig. 5). The calculation methods are based on a research report prepared by FSA that became a guideline (VDI 2263 Part 8.1 from March 2011).

Version 5

The tried and proven software has been re-designed and extended. The version 5 contains calculation methods according to the latest standards as well as guidelines, a new volume designer and a new module, designed for the dimensioning of pressure venting reliefs of bucket elevators.

Download current version

To evaluate the software you may download the installation package for Microsoft Windows OS.  

Entering a licence-key will turn it into a full version. 

Download ExProtect

Licence Models and Pricing

For Prices, licence models and sytem requirements please see:

ExProtect 5 Licences (pdf-file)

Consultation and Sales

FSA GmbH
The Research Centre for Applied System Safety and Industrial Medicine mbH
Dynamostraße 7-11
D-68165 Mannheim
Germany
Contact: Dirk Lorenz, Tel.: +49 (0)621 - 44563690, Fax +49 (0)621 - 44563499
Email: dirk.lorenz(ат)fsa.de