The correct functioning of HEPA filters is normally tested at the time of installation, as well as part of the routine maintenance programme. It is normally recommended that HEPA filters are checked at 14 month intervals or less, or immediately after filter changing. Where high efficiency filters are fitted, it is vital that the filter housing/sealing device does not allow particulate material to pass and thereby compromise the clean room environment that is being served. Testing is necessary since HEPA filters can become partially or totally blocked, rendering the filter of little value.
Concept`s ViCount smoke generators are installed throughout the world in quality hot fire training centres - providing the most realistic artificial smoke effect possible. They are also used to add smoke during carbonaceous burns. The majority of fire training centres and schools use gas to replicate the appearance and heat of a real fire but one thing gas doesn`t produce is smoke! The ViCount range of oil-based smoke generators from Concept produces a smoke with a temperature resistance up to 200C, so realism can be added to Hot Fire simulators effectively and safely.
Concept smoke systems are used throughout the world for testing smoke detectors of all types. And by smoke detector manufacturers in their own testing facilities. Concept also supply specialist equipment for testing smoke detectors in commercial aircraft, with users including Boeing, Meggitt, Alcoa, Apache, Dassault Falcon and IAI.
For many years, materials containing isocyanate have been the single biggest cause of occupational asthma in the UK. Vehicle paint sprayers are 80 times more likely to develop occupational asthma than workers in other industries. This is caused by the inhalation of the fine paint mist that is generated when paint spraying. There is a requirement for the measurement and display of `clearance times` for spray booths / rooms set by the HSE and the Motor Vehicle Repair (MVR) to meet the requirements of Control of Substances Hazardous to Health (COSHH).
The air tightness or leakage rate of a building is the uncontrolled flow of air through holes, gaps and cracks in the fabric of a building, which may not be detectable simply by looking at the outside of the building. Filling a building or void with smoke and pressurising that volume, will result in a visible discharge of smoke from any problem areas. Smoke is the perfect medium for discovering where leaks are and how big they are! Filling a `leaky` building, ductwork, pipes, aircraft or containment area with smoke and ideally adding a small amount of pressure to the area being tested, will result in a visible discharge of smoke and, simply put, the greater the volume of smoke, the bigger the leak.
A fire at sea can be devastating. Ensuring that crews are trained in safe but highly realistic conditions can help them tackle a real fire with greater speed, efficiency and confidence - minimising the damage to the ship, its cargo and of course risk to life.
For producing a point source of smoke in a wind tunnel environment, Concept have the Aerotech smoke system, with a heated tip on the end of a thin wand. For seeding a wind tunnel for LDA/PVA type work the ViCount 1300 system is normally supplied. This can produce either water or oil based smoke with minor re-programming, so it is a very adaptable solution. The ViCount is such a versatile machine, that its capable of everything from seeding the world’s largest wind tunnel (NASA AMES) through to producing fine smoke rakes in educational wind tunnels.
Making smoke in a very open environment or external environment can be a challenging! An oil-based smoke generator, such as a ViCount system, can produce dramatically more artificial smoke than multiple water based systems. This is due to the fact that the smoke ViCounts produce, being oil-based, does not evaporate in the same way and speed that water-based smoke does. The smoke from a ViCount smoke generator will travel for 1000`s of meters, compared to a typical water based smoke machine that may produce a smoke visible for 100 meters. Just one ViCount or Vulcan can replace 10 or more conventional water based smoke systems. ViCount`s have been used world wide for many tunnel smoke simulations, be it for RTA training / evacuation exercises or tunnel ventilation testing.
When water-based artificial smoke is introduced into a rapidly moving air stream, the particles that make up the artificial smoke evaporate much more quickly than they do in a static environment. So if you are looking to produce an artificial smoke that better represents the smoke created by a real fire, we would always recommend the ViCount smoke generator, the smoke from which is virtually unaffected by fast moving air streams. Used world wide PPV training centre`s and to test impulse ventilation systems. A Home Office report into PPV (Positive pressure Ventilation) by the Head of the Fire Experimental Unit, Fire Research & Development concluded that the concept behind the technique of PPV was relatively easy to understand and the equipment simple to operate, but stressed the need for extensive training.
The Fire Training Range, designed and manufactured by Concept, has been developed to add realism to training scenarios or any type of fire safety training. For complete portability, unbeatable reliability and quality smoke output, the Colt 4 Turbo is in a class of it`s own. For large scale applications the ViCount is the ultimate choice for fire training. With almost 50 years experience in the generation of artificial smoke for fire brigades, Concept are in an unrivaled position to supply the equipment and advice best suited for your application!
Smoke is the perfect medium for discovering where leaks are and how big they are! Filling a `leaky` building, ductwork, pipes, aircraft or containment area with smoke and ideally adding a small amount of pressure to the area being tested, will result in a visible discharge of smoke and, simply put, the greater the volume of smoke, the bigger the leak. After Concept developed a bespoke system for their aircraft testing requirements, a spokesperson for the RAF commented: `The use of smoke as a means by which to detect cabin pressurisation leaks has been shown to be extremely effective and is unquestionably superior to any alternative detection method used to date!`