Temperature Resistance

High Temperature Smoke Systems for Hot Fire Training and Testing

Concept's ViCount range of smoke systems have been designed to produce an artificial smoke with an exceptional resistance to high temperatures (up to 200°C before layering commences).

This compares to a layering temperature as low as 35°C for glycol type systems, or up to 60°C for the glycerol based system (like our Colt 4 and Spirit 900A systems).

So if you have a requirement for smoke at elevated temperatures, be it for a Hot Fire Training simulator, hot smoke testing, or smoke extraction testing the ViCount system provides a cost effective, safe and completely controllable solution.

Concept have such expertise in the field of high temperature smoke systems that we were commissioned by the UK Ministry of Defence to project manage a range of comparative tests prior to the selection of the smoke systems for the Royal Navy’s Fire Fighting Training Units.

These tests involved the construction by FRS (Fire Research Station) of a purpose made chamber, with thermocouple grid, heat source (allowing the chamber temperature to be raised in a controlled fashion) and floor to ceiling pyrex window allowing observations and video recordings to be made of smoke layering as it occurred. Representatives of FRS, the MoD and the MoD’s management group were present during all testing.

hanger smoke test

During the tests various smoke chemicals and smoke systems were used to produce and maintain a dense smoke concentration within the test compartment, as the temperature within the compartment was slowly raised. This enabled the specific layering temperature of the smokes to be assessed in controlled conditions, and resulted in the selection of the Concept ViCount as the exclusive smoke generator system for the Royal Navy's hot fire training centres.

Other specialists involved in these tests included Department of the Environment, FRS Cardington, Atomic Energy Authority Harwell, and an eminent independent analytical laboratory.

The smoke produced by these systems must not only be temperature resistant, but must be capable of achieving the dense smoke concentrations required for training in heated conditions without forming a flammability or explosive hazard in its own right. Independent tests by the Defence Research Agency demonstrated that dense smoke conditions could be achieved at < 4% LEL, even in a compartment with a widespread “real fire” scenario running.

The temperature resistance of the ViCount smoke makes it ideally suited to a number of other applications, including Hot Smoke tests such as that shown above (Airbus Industries - Hamburg. Courtesy of Hugin Group International).

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Confined Space Rescue Program Manager - North Tree Fire

ViCount use in Hot Fire Trainer

The machine has performed flawlessly up to this point and I purchased the machine from you at least six or seven years ago.

I have to confess I have never cleaned the orifice with the drill as you mentioned.

Actually, after the install, I have never worked on the machine again which, I am sure, is at least neglect on my part.

We originally had two smoke generators in the trainer, one fore and one aft.   The other machine (not Concepts) is quite a bit older
and it quit about two years ago but we found that the ViCount generated so much smoke we did not really need two machines.

The machine is protected from the heat of the trainer by a bulkhead with a port for the smoke to get through.

To give you an idea of the efficiency and quantity and the character of the smoke, the ceiling temperature inside the trainer as verified by two gauges reaches about 1300 degrees F. The smoke level inside the trainer is maintained quite adequately from the floor to about the
four and one half foot level but not much higher due to the temperature. We have found that it burns off at about 450 degrees F (230C).

Your smoke machine has trained hundreds of line Firefighters from all over the US including from major metropolitan Fire Departments such as Los Angeles County Fire, Pasadena Fire, San Jose Fire, Las Vegas Fire, Oakland Fire, Berkeley Fire, Sacramento Metro Fire, Cal Fire, and many federal agencies as well.

The training and experience those fire fighters receive in the intense heat and disorientingly smoky environment the ViCount helps create has without question saved lives and injuries as well as millions of dollars of property damage that may have occurred without the level of training
the ViCount helps provide.

Thank you for your help and support.

Best regards,

Mitch Ward CIHM
NorthTree Fire
Confined Space Rescue Program Manager