Emerging Technologies  Chapter 14
Learning Objectives <ul><li>Define the terms interoperability and building information modeling </li></ul><ul><li>Discuss ...
Learning Objectives (continued) <ul><li>Describe the characteristics of a multipurpose piping system </li></ul><ul><li>Des...
Introduction <ul><li>Many fire protection systems described in this book have not changed significantly </li></ul><ul><ul>...
Building and System Design <ul><li>Interoperability  requires that collaborating organizations use software platform </li>...
Fire Alarm and Detection System Technology <ul><li>Alarm and detection systems  </li></ul><ul><ul><li>Incorporate digital ...
Fire Detection <ul><li>High-definition video cameras detect smoke and flame </li></ul><ul><ul><li>Analyze digital images t...
System Interface and Communications <ul><li>Internet protocol-related capabilities have merged with fire alarm system tech...
System Interface and Communications (continued) <ul><li>Public fire alarm boxes : digital electronics, computers, radio tr...
Water-Based Fire Suppression Systems <ul><li>Past ten years, new technologies such as dry pipe valves have entered market ...
Sprinkler Heads and Nozzles <ul><li>Two examples of emerging technologies: </li></ul><ul><ul><li>Low-flowing sprinkler hea...
Residential Sprinkler Systems <ul><li>More emphasis on integration of all water systems into one combined system </li></ul...
Figure 14-2 This sprinkler head is fed by many water lines and is part of a multipurpose piping system
Fire Pumps and Controllers <ul><li>Variable speed controllers: adjust the pump driver speed </li></ul><ul><ul><li>Fire pum...
Compressed-Air Foam Suppression Systems <ul><li>New research has solved the foam generation and agent transportation probl...
Aerosol Fire Suppression Systems <ul><li>Alternative to clean agents and specialized water-based fire protection systems <...
Summary <ul><li>Research and development leads to new technologies </li></ul><ul><li>Interoperability and building informa...
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Chapter 14

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Chapter 14

  1. 1. Emerging Technologies Chapter 14
  2. 2. Learning Objectives <ul><li>Define the terms interoperability and building information modeling </li></ul><ul><li>Discuss the applications for computer fire modeling and performance-based design </li></ul><ul><li>Explain the concept behind the use of video cameras as fire detectors </li></ul><ul><li>Discuss the purpose of mass notification systems </li></ul>
  3. 3. Learning Objectives (continued) <ul><li>Describe the characteristics of a multipurpose piping system </li></ul><ul><li>Describe the characteristics of compressed-air foam fixed fire suppression systems </li></ul><ul><li>Describe the characteristics of aerosol fire suppression systems </li></ul>
  4. 4. Introduction <ul><li>Many fire protection systems described in this book have not changed significantly </li></ul><ul><ul><li>Performed extremely well when properly designed, installed, and maintained </li></ul></ul><ul><li>New challenges in the built environment </li></ul><ul><ul><li>Require implementation of innovative designs and technologies to protect life and property </li></ul></ul><ul><li>Emerging techniques will detect, manage, control and suppress fires in the near future </li></ul>
  5. 5. Building and System Design <ul><li>Interoperability requires that collaborating organizations use software platform </li></ul><ul><ul><li>Share information across applications and disciplines </li></ul></ul><ul><li>Building information modeling : characteristics of a structure composed of intelligent objects </li></ul><ul><li>Computer fire modeling : helps professionals to understand the fire in the building </li></ul><ul><li>Performance-based design : determines the viability of the design goal </li></ul>
  6. 6. Fire Alarm and Detection System Technology <ul><li>Alarm and detection systems </li></ul><ul><ul><li>Incorporate digital and microprocessor technology </li></ul></ul><ul><ul><li>Develop new equipment, systems, and methods to detect and communicate information </li></ul></ul>
  7. 7. Fire Detection <ul><li>High-definition video cameras detect smoke and flame </li></ul><ul><ul><li>Analyze digital images that sense changes in pixels many times faster than ordinary smoke detectors </li></ul></ul><ul><ul><li>Video camera sees the smoke before the smoke detector senses it </li></ul></ul><ul><li>Analyze and compare chemical makeup of gases and particulate matter </li></ul><ul><ul><li>Sensing components that react differently to airborne chemicals by digitizing and processing the readings </li></ul></ul>
  8. 8. System Interface and Communications <ul><li>Internet protocol-related capabilities have merged with fire alarm system technology </li></ul><ul><li>Fire alarm systems accessible via the Internet </li></ul><ul><li>Fire alarm systems can interface with communications equipment </li></ul><ul><ul><li>Retransmit alarm signals and system information </li></ul></ul><ul><li>Responders determine conditions with sensors, video camera detectors, and other devices </li></ul>
  9. 9. System Interface and Communications (continued) <ul><li>Public fire alarm boxes : digital electronics, computers, radio transmitters </li></ul><ul><ul><li>Communicate with central stations </li></ul></ul><ul><li>Mass notification systems : may be separate or integrated into the fire alarm system </li></ul><ul><li>Fire alarm notification appliances </li></ul><ul><ul><li>Exit-marking audible notification appliances </li></ul></ul><ul><ul><li>Addressable notification appliances </li></ul></ul>
  10. 10. Water-Based Fire Suppression Systems <ul><li>Past ten years, new technologies such as dry pipe valves have entered market </li></ul><ul><ul><li>Do not require opening to reset the clapper valve </li></ul></ul><ul><ul><li>Greater air to water deferential ratios </li></ul></ul><ul><li>Emerging technologies related to water-based suppression systems </li></ul><ul><ul><li>Development of new fire sprinkler heads and nozzles </li></ul></ul><ul><li>New technologies for some mature applications </li></ul>
  11. 11. Sprinkler Heads and Nozzles <ul><li>Two examples of emerging technologies: </li></ul><ul><ul><li>Low-flowing sprinkler heads </li></ul></ul><ul><ul><li>Heads or nozzles with distinct and specialized discharge patterns </li></ul></ul><ul><li>Ongoing research to deliver specific head pressure for an installation condition </li></ul><ul><li>On/off sprinkler head that uses alternative sensor/actuator technology </li></ul><ul><ul><li>Reduces water damage caused by conventional “one-shot” fire sprinklers </li></ul></ul>
  12. 12. Residential Sprinkler Systems <ul><li>More emphasis on integration of all water systems into one combined system </li></ul><ul><li>Multipurpose piping systems combine domestic water and fire sprinkler systems into one network </li></ul><ul><li>Piping interconnected; water flows from multiple supply lines </li></ul><ul><li>Becoming more important for green buildings </li></ul>
  13. 13. Figure 14-2 This sprinkler head is fed by many water lines and is part of a multipurpose piping system
  14. 14. Fire Pumps and Controllers <ul><li>Variable speed controllers: adjust the pump driver speed </li></ul><ul><ul><li>Fire pump maintains constant output pressure in fire sprinkler and standpipe system </li></ul></ul><ul><ul><li>Based on the suction pressure and water supply </li></ul></ul><ul><li>Loss of pressure sensed by a switch starts the controller </li></ul><ul><ul><li>Once running, pressure switch regulates the driver speed at preset pressure </li></ul></ul><ul><li>Microprocessor monitors the suction pressure and adjusts the speed accordingly </li></ul>
  15. 15. Compressed-Air Foam Suppression Systems <ul><li>New research has solved the foam generation and agent transportation problems </li></ul><ul><li>Protect flammable and combustible liquids and electrical transformer hazards </li></ul><ul><li>Activation by automatic detection or manual operation </li></ul><ul><li>Ability to penetrate a fire plume </li></ul><ul><li>Better thermal radiation protection </li></ul>
  16. 16. Aerosol Fire Suppression Systems <ul><li>Alternative to clean agents and specialized water-based fire protection systems </li></ul><ul><li>Main component: aerosol generator </li></ul><ul><ul><li>Condensed generator: no pipes, nozzles, or pressure vessels </li></ul></ul><ul><ul><li>Dispersed generator: particle chemical agent suspended in an inert gas </li></ul></ul><ul><li>Aerosol product is non-toxic, non-corrosive </li></ul><ul><ul><li>Remains suspended in the environment </li></ul></ul><ul><ul><li>Eliminates the possibility of re-ignition </li></ul></ul>
  17. 17. Summary <ul><li>Research and development leads to new technologies </li></ul><ul><li>Interoperability and building information modeling platforms </li></ul><ul><li>Improved annunciation capabilities </li></ul><ul><ul><li>Mass notification systems </li></ul></ul><ul><li>Sprinkler head technology continues to dominate the industry </li></ul><ul><li>Aerosol fire suppression systems recognized and are viable technologies </li></ul>

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