Prevention and Protection
Dust Explosion Prevention and Protection Software (DustExpVent)
is one of the information tool elaborated by Paolo Scardamaglia
“Tecnisweb sas” that helps both the engineers in charge of the
design of prevention and protection in the presence of combustible dust and the
manufacturers of products, employers, designers of protection systems, security
officers and auditors.
DustExpVent guides the user step by step in data input by means
of values proposed by using a graphical interface, simple immediate and intuitive,
to internationally validated by industry experts.
DustExpVent it's a new software program property of Tecnisweb sas di Paolo
Scardamaglia, which applies the European Standard EN 14491, etc. The program
calculates the vent area requirements Ae (Vent Area), Calculate Pred (Linked Vessel,
Duct Lengh, Pneumatic filling), Calculate the forces applied on the structure, Calculate
the amount of inert substance to be entered into the system to make the
combustible dust inert, calculate suppression systems (HRD). Explosion vents
and other venting devices which
comply with EN 14797 must be used to obtain these vent areas.
Dust explosion vent area calculation
according to EN 14491.
Flame and pressure effects according
to EN 14491.
Project summaries and reports.
Database of dust explosivity data.
Complete calculations are given by the maximum recoil force, the duration of
the recoil as well a s the transferred impulse, flame and pressure development
in the vicinity of vented equipment.
is versatile in choice of dust
dispersion, type of venting device and influence of the vent pipe.
is Easy to use while . The comprehensive
and illustrated help gives additional information and practical hints.
all the required information for explosion venting of vessels, silos and
For containers that must be protected by measures of
explosion venting the software DustExpVent
is to define in detail the geometry of a containment system in
order to calculate both the volume and the ratio length/diameter (L/De)
of the containment system itself This target is achieved by directly inserting
the known values in the appropriate fields:
The software DustExpVent
contains a database of combustible dust (easily customizable)
By means of the GUI the database can be easily
modified; the user can enter a new combustible dust, or can edit or delete
a combustible dust already present in the database of the software.
The report is professional, editable and customizable
in all its parts through Microsoft Word
DustExpVent meets the following standards:
2263 Dust fires and dust explosions; hazards, assessment, protective measures
1992-05 DI 2263 Blatt 1 Dust fires and
dust explosions; hazards, assessment, protective measures; test methods for the
determination of the safety characteristic of dusts 1990-05
2263 Blatt 2 Dust fires and dust explosions; hazards, assessment, protective
measures; inerting 1992-05
2263 Blatt 3 Dust fires and dust explosions; hazards, assessment, protective
measures; pressure-shock-resistant vessels and apparatus; calculation,
construction and tests 1990-05
2263 Blatt 4 Dust fires and dust explosions; hazards, assessment, protective
measures; suppression of dust explosions 1992-04
2263 Blatt 5 Dust fires and dust explosions - Hazards, Assessment, Protective
measures - Explosion protection in fluid bed dryers 2002-03
2263 Blatt 5.1 Dust fires and dust explosions hazards - Assessment, protective
measures - Explosion protection in fluid bed dryers; Hints and examples of
ý DIN EN
ý NFPA 69 – Standard of explosion prevention system;
ý EN 14373 Explosion suppression system
ý EN 1127-1 Explosion prevention and protection;
ý EN 1449 1:2002, Dust explosionventing
ý MDI 3673, Part 1:2002, Pressure venting of dust
ý Siwek, R.; 2002, Druckentlastung tiber
Abblasrohre — Vergleich der Methoden; Gefahrstoffe - Reinhaltimg
der Luft 62 Nr. 9.
ý Lumi, G. A (1988) Guide to Dust Explosion Prevention and
Protection, Part 3: Venting of weak Explosions and Effect of Vent Ducts. The
Institution of Chemical Engineers, UK.
ý Lumi, G., Crowhurst, D., and
Hey, M. (1988) The Effects of Vent Ducts on the Reduced Explosion Pressure of
vented Explosions. Journ. Loss Prevention in the Precess Industries 1 pp. 182-196.
Barton — Dust explosion prevention and protection a practical guide;
ý Fonte:iohn Barton — Dust explosion prevention
and protection a practical guide
The software DustExpVent
is the only software that allows to perform properly and quickly the design of
prevention and protection systems in areas where there are combustible dust.
DustExpVent among other things allows you to:
1) Size the area Ae (Vent
3) Calculate the stress forces applied
on the structure
4) Calculate the amount of inerts to be fed into the system to make the combustible
dust inert (inerting).
The measures to prevent the
formation of an explosive atmosphere may be implemented through the inerting of the combustible dust.
involves the introduction of inert gas in the containment system of the
combustible dust. This operation decreasing the oxygen concentration below the
LOC avoids the ignition of the explosion of dust/air mixture.
5) Size the membranes rupture
(venting) and / or suppression systems (HRD).
1) Elaborate the results through
graphics, with the possibility to copy, print, save and preview the reports.