What can the Aerospace Industry Contribute to Very Early Fire Detection? Presented by: Stephen Lederer Marketing Manager, Honeywell, Inc.

Aspirating Smoke Detection (ASD) An “active” system comprised of a detector, air intake fan and sampling tubes that constantly draws air into the detector for early warning smoke detection. Standard smoke detectors are “passive” devices that activate when smoke reaches and enters the detector.

Definition of ASD An aspirating smoke detector draws air into its sensor to detect smoke. These devices typically include: 1.Aspirator or Fan 2.Piping and Sampling Points (Active vs. Passive) 3.Filter 4.Sensing Chamber 5.High Sensitivity Sensor

Why is ASD Used? Reliable Detection for Very Early Warning Before damage can occur Up to 60 minutes before a fire Flexible Placement & Maintenance External Mounting Easy access for service/maintenance Can’t return to the space due to security reasons Applications Not Suitable for Standard Smoke Detection Extreme environmental conditions High rates of air changes in space Very large area of coverage

The Benefits of ASD 1.Earliest detection without false alarms 2.Effective communication/response strategy 3.Reduced total cost of ownership 4.100% business uptime, 100% business confidence 5.Protection across a wider range of applications

Applications & Implications High Level False Alarm Applications Hospitals Schools Airports Harsh Environments Cold Storage Heavy industrial Remote Applications Wind turbines Base stations Mobile data centres Switchgear housings Pumping stations

The Challenge: False Alarm Immunity with Stability at High Sensitivity When detection as precise as %/ft obscuration is required – false alarms due to non-smoke particulate is a concern Many manufacturers use devices with filters within the pipe network throughout the protected space to help protect the device from this Honeywell ACS worked with Aerospace division on patented technology to use within their aspirating smoke detector Automation and Control Solutions Aerospace

The Challenge: False Alarm Immunity with Stability at High Sensitivity Solution: Patented Particulate Wing Filter – A “particle separator” to filter out large particles

Particle Separator – How is it used in ASD? Multi-Stage filtering and intelligence separates and distinguishes nuisance particulate from smoke. Patented particle separator Field-replaceable filter Electronic nuisance rejection through Dual Source optical analysis

Particle Separator – How is it used in ASD? Patented Particle Separator – Removes larger particles not associated with elements of combustion Large particles are ejected through the device exhaust port. Reduces the burden on the replaceable filter; ultimately reducing the service and maintenance costs of the system

Particle Separator – How is it used in ASD? Goes beyond simply looking at particle size and physical filtering to make an alarm determination Size alone does not accurately delineate whether a particle is an element of combustion (smoke) or other particles such as dust

Particle Separator - How is it used in ASD? Filtering an aspiration air sample above 0.5 microns particle size range can potentially reduce the protection capabilities against many common sources of combustion. Typed(gm), µm* d(32), µm** og Combustion Conditions Ref. No. Douglas fir pyrolysis1,3 Douglas fir flaming1,3 Polyvinylchloride pyrolysis3 Polyvinylchloride flaming3 polyurethane (flexible) pyrolysis3 polyurethane (flexible) flaming3 polyurethane (rigid) pyrolysis3 polyurethane (rigid) flaming3 Polystyrene1.4pyrolysis1 Polystyrene1.3flaming1 Polypropylene1.61.9pyrolysis1 Polypropylene1.21.9flaming1 Polymethylmethacrylate0.6pyrolysis1 Polymethylmethacrylate1.2flaming1 cellulosic insulation2-32.4smoldering6 Source: Fire Protection Engineering – Worcester Polytechnic Institute

Particle Separator - How is it used in ASD? Many dust based particles which are commonly found in any building which can be smaller than 0.5 microns. For example, one of the most common - typical atmospheric dust can range from to 30 microns. Particle Particle Size (microns) Cement Dust3 – 100 Combustion-related - motor vehicles, wood burning, open burning, industrial processes up to 2.5 Smoke from Synthetic Materials1 – 50 Talcum Dust0.5 – 50 Calcium Zinc Dust0.7 – 20 Paint Pigments0.1 – 5 Metallurgical Dust0.1 – 1000 Carbon Black Dust0.2 – 10 Smoldering or Flaming Cooking Oil Rosin Smoke0.01 – 1 Combustion Smoke from Natural Materials Burning Wood0.2 – 3 Coal Flue Gas Oil Smoke0.03 – 1 Typical Atmospheric Dust0.001 to 30

30 Micron Filter – Field Replaceable Further eliminates greater than 30 micron particles not associated with elements of combustion Filter life is estimated to be the equivalent of 5+yrs in a warehouse setting, 10+yrs in a data center or 20+ years in a clean room environment Much longer life due to Particle Separator Trouble signal at the device alerts you to when the filter needs to be replaced

Smoke Detection Chamber – Particulate Analysis (Dual Optics) Multi-angle and multi- wavelength optics Blue LED - widest ranges of fire types Infra red -LED IR - detects fine dust particles Multiple photodiode detectors pick up forward and backward scattering

Smoke Detection Chamber Algorithm Deployment – samples detected by both sources not only based on size but color and signature Maximum Smoke Particle Sensitivity = % Obs/m to 20.5% Obs/m “Open” design with few critical surfaces for dust to accumulate – less chance for false alarms Chamber flow is monitored to maximize filter life

Combining Multi-Stage Filtration & Dual Optics Delivering highly accurate Very Early Stage Detection Minimising false alarms Reducing maintenance requirements First Stage Filter Second Stage Filter Dual Light Detection Chamber

INTEGRATION – SIMPLICITY IS KEY

ASD Integration – Effective Communication & Response Strategy Cost Efficiency Service Continuity End User Satisfaction =

Simple Connectivity is Key Modbus Communications Using TCP/IP Use existing building management system to monitor device health and history Addressable Models Communicate Directly Over the Addressable Loop Have a unique type ID Reset, isolate, disable the ASD from the panel Monitor for faults and trouble Modbus /Web Mobile Device BMS SLC Fire Alarm PanelASD TCP/IP

Integrated Ethernet IP Connectivity Integral Ethernet capabilities enable remote configuring options using software Internal Web Server allows remote monitoring from anywhere in the world via web browser Providing the right information to the right people

In Summary Due to the involvement of Honeywell’s Aerospace division, Aspirating Smoke Detectors (ASD) can now be used to protect difficult environments that previously would be considered unsuitable for ASD protection Discriminating air samples by size tell only part of the story New technologies allow ASD’s to discriminate air samples based on size, color and signature for high sensitivity with stability and accuracy Designers and end users want Aspirating Smoke Detectors to be easily integrated with existing systems Several ways to achieve this with built in integration options – ModBus, Ethernet, SLC