SAFETY IN THE PLANT
LARGE-SCALE DUST EXPLOSION RESEARCH
ust explosion incidents are immediate releases of small particles (i.e. chemicals, metal dusts, etc.) in large volumes. Such incidents can have devastating effects both in terms of harm to people and the facilities involved. DNV GL and Gexcon have therefore joined together to seek partners in a collaborative project to investigate dust explosions at a larger scale and produce new guidelines for industry on how best to mitigate these events.
D
Common dusts involved in reported incidents ranges from, among others;
lumber and wood products, chemicals, metal dusts, plastics and foodstuffs nature of the threat develops along with new technologies, for example the use of biomass in large-scale power generation can involve containment volumes of the order of 100,000m3
. The new guidelines
will result in more reliable and cost- effective safety designs and a much better understanding of the extent of the hazards in large volumes.
“Though considerable research has been done on dust explosions, experimental work has taken place in small enclosures of less than 250m3
,” says Clara
Engineer, DNV GL. “The increasing use of biomass, particularly wood material, in the
power generation industry is raising safety concerns around the potential of dust explosions occurring and we are taking measures to help the industry understand the implications.”
The project combines Gexcon’s capability in dust explosion modelling with the large-scale experimental capabilities at the DNV GL Spadeadam Research and Testing centre in Cumbria, UK.
DNV GL Oil & Gas, adds: “The primary role of the Spadeadam Research and Testing centre is to provide our clients with knowledge and understanding to ensure risks are reduced and operations are safer. The availability of Spadeadam’s infrastructure allows DNV GL to respond so effectively across a number of sectors.”
For more information visit
www.dnvgl.com
FLOW METERS designed to improve SAFETY
which can help mitigate risk, enhance plant safety and protect personnel. The non-clog Rosemount 8800 Vortex
F
portfolio offers safety and reliability features such as online removable sensors to reduce process downtime and a critical process valve for aggressive applications that increases personnel safety by wafer, reducer, dual and quad meter body styles, supporting installations up to 12in (300mm) line sizes.
Per an accredited third-party assessment, a single Rosemount 8800
54
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acilities with safety instrumented systems can now take advantage of the new SIL 2/3 functional safety
Vortex meter may be used up to SIL 2. The Dual Vortex meter is capable of up to SIL 3 and offers a simple drop-in solution to reduce installation costs. This shedder bar(s), dual sensing elements,
and dual transmitters for redundancy and 1oo2 voting to reduce unexpected shutdowns.
Exclusive to Emerson, the Rosemount 8800 Quad Vortex uses a dual shedder bar, quadruple sensor and quadruple fault tolerances and eliminate the need for highest level of reliability to guard against spurious trips using 2oo3 voting and includes a fourth transmitter for process control. allows Emerson to offer the most comprehensive Vortex portfolio to address the importance of plant safety, process availability and measurement stability.”
For more information visit
www.emerson.com
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