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

Syrereducerande anlägg – Vad är det ?Erik Secher

Kidde Sweden AB

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

100

80

60

40

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0

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Ability to support

combustion%

Oxygen percentage at sea level. %

PrevenexAtmosphere

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

100

80

60

40

20

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21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5

Level of oxygen saturation in the

bloodstream%

Oxygen percentage at sea level. %

PrevenexAtmosphere

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

DeathZone

La PazBolivia

Highest pisteChamonix

MexicoCity

AspenColorado

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

ReducingModule

ControlCabinet

Protected space

O2 Sensors

SilencerAir

ModifiedAir

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

Rel

ativ

e C

ost

Volume of Risk m3

Slide courtesy of LPG Fire Ltd

Kidde Sweden AB Operating cost: 10 years with 1 discharge

Rel

ativ

e C

ost

Volume of Risk m3

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.

Questions and answers !