Syrereducerande anlägg – Vad är det ? Erik Secher Kidde Sweden AB

Hypoxic Air Ventilation (HAV) A revolution in Fire Protection PAS 95:2011 (Draft) BSI 2010

Kidde Sweden AB Some dimensions about fire 20,000 to 25,000 deaths 250,000 to 500,000 injuries 80% of deaths and injuries occur in buildings 20 Billion Euros in Fire related insurance claims 1 Historic building lost per day Massive disruption to business Irreplaceable loss of our Cultural Heritage Fire is the major driver of commercial insurance cost In Europe, each year Which means

Kidde Sweden AB Prevenex: Uses compressor to reduce oxygen content. Oxyreduct: Uses Nitrogen Generators to reduce oxygen level. Inward Leakage Maximum oxygen concentration level Minimum oxygen concentration level Oxygen alarm level Acceptable space for human occupancy Using ordinary air to save lives and property

Kidde Sweden AB Ability to support combustion % Oxygen percentage at sea level. % Prevenex Atmosphere At 16.2% Oxygen, the large Nitrogen atoms extract heat from the combustion process at such a rate that it cannot continue. In effect, there are enough nitrogen atoms to form a ‘fire blanket’ around each oxygen atom. No fire can start.

Kidde Sweden AB Level of oxygen saturation in the bloodstream % Oxygen percentage at sea level. % Prevenex Atmosphere Tiny decrease in Blood Oxygen Level from 98% to 95% saturated Small initial increase in breathing and heart rates, which return to normal with extended exposure It’s as healthy as clean mountain air Prevenex Injection N2 injection Death Zone La Paz Bolivia Highest piste Chamonix Mexico City Aspen Colorado 15 million people live permanently at 2,500m or more

Kidde Sweden AB Compact, Unobtrusive & Automatic On site generators create and maintain set oxygen levels totally automatically Multiple rooms independently controlled from one unit. Virtually silent and un-noticeable in the protected space. Protects in even the most inaccessible locations – inside cabinets, in ducts, in ceiling voids, even inside packaging – anywhere that there is air. Humidity and Temperature control can be integrated. Simple to install in new or existing locations Compressor system Reducing Module Control Cabinet Protected space O 2 Sensors Silencer Air Modified Air

Kidde Sweden AB Massive savings on space A conventional Inert Gas suppression system to protect a 6,000 cu.m. space A Prevenex HAV module to protect TWICE the volume spread over 6 rooms More floor space available for revenue generation Installation time and cost reduced by 70% or more Minimal impact on the building

Kidde Sweden AB Cost Comparison - Installation Relative Cost Volume of Risk m 3 Slide courtesy of LPG Fire Ltd

Kidde Sweden AB Operating cost: 10 years with 1 discharge Relative Cost Volume of Risk m 3 Slide courtesy of LPG Fire Ltd Plus up to 60% of Prevenex compressor energy can be recovered as heat

Kidde Sweden AB Summary Risk of Fire totally removed, even in inaccessible places. No need for Pressure Relief Dampers or Extraction Systems Greatly simplified installation. Small footprint – more space available for revenue generation Increasingly cost effective above 2,000m³ Virtually no pipes or other equipment in the protected areas. No need to provide positive pressure to maintain high air quality Note: It is suggested that a aspirating smoke detection system be installed to warn of any smouldering events due to short circuits etc.

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