Types of Smoke Control Systems Explained

Table of Contents

Introduction

Smoke control systems are vital for safety and visibility during fires. These systems are crucial for architects and engineers focused on building safety. Apex Engineering, a leader in smoke ventilation and extraction, offers cost-effective solutions that meet industry standards.

smoke control system control panel connections

Smoke Ventilation Systems

Smoke ventilation systems remove smoke from buildings, aiding safe evacuation and improving visibility for firefighters. These systems can be natural or mechanical:

  • Natural Smoke Ventilation: Utilizes natural airflow to clear smoke. It’s cost-effective and requires minimal maintenance.
  • Mechanical Smoke Ventilation: Uses fans and ducts to extract smoke, ideal for large buildings or areas with limited natural airflow.
Natural smoke control system in a commercial building

Smoke and Fire Curtains

Smoke and fire curtains act as barriers to prevent smoke and fire spread within buildings and are essential for effective smoke control systems. They are typically used in open spaces like atriums or large halls:

  • Smoke Curtains: Channel smoke towards ventilation points, keeping escape routes clear.
  • Fire Curtains: Withstand high temperatures, preventing fire and smoke spread between building sections.
Smoke and fire curtain installation

Smoke Control Pressurisation Systems

Pressurisation systems maintain higher air pressure in escape routes, preventing smoke from entering these areas. This system is essential in high-rise buildings and underground facilities.

Stairwell Ventilation

Stairwell ventilation extracts smoke from stairwells in small buildings or provides replacement air for lobby smoke extract systems in large buildings, ensuring clear escape routes during emergencies.

Protected Lobby Ventilation

This system extracts smoke from common lobbies, safeguarding escape stairs. A vertical duct rises through the building to extract smoke, with each lobby having a damper connected to the duct. An automatic opening ventilator (AOV) is mounted at the top of the stairwell.

stairwell pressurisation diagram system in a high-rise building.

Smoke Extraction Systems

Smoke extraction systems remove smoke from specific building areas, such as basements or enclosed spaces. They are often used with other smoke control measures to enhance effectiveness.

smoke-ventilation-mechanical-shaft

Car Park Ventilation Systems

Car park ventilation prevents toxic fume build-up and clears smoke during fires. Compliance with regulations can be achieved through natural or mechanical ventilation methods to achieve an optimal smoke control systems.

Smoke Clearance

Provides openings for smoke to leave enclosed car parks naturally. If not feasible, a mechanical extract system is used.

Fume Exhaust

Ensures CO leaves the car park naturally through openings. If not possible, a mechanical extract system limits CO concentration.

Smoke extraction system in an underground facility

Components of Smoke Control Systems

  1. Smoke Vents: Roof or wall openings with actuators for smoke and heat release.
  2. Control Panels: Oversee vent functions, receiving alerts from fire detection systems.
  3. Smoke Detectors: Identify smoke presence and activate control panels throughout the building.
  4. Extraction Fans: Remove smoke in mechanical ventilation setups.
  5. Dampers and Ductwork: Guide smoke flow to vents or extraction points within the building.
  6. Fire Curtains: Barriers that section off areas to stop smoke from spreading.
Smoke Containment Systems
Smoke Management Systems

Frequently Asked Questions

For more information on smoke control systems, contact Apex Engineering.

A smoke control system manages smoke during a fire, ensuring safe evacuation and aiding firefighting efforts.
They clear smoke from buildings, improving visibility and safety for occupants and emergency responders.
They act as barriers to prevent smoke and fire spread, directing smoke towards ventilation points.
They maintain higher air pressure in escape routes to keep them smoke-free.
Yes, they can be tailored to fit various building designs and requirements, enhancing overall safety.

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image of roof smoke ventilation and extraction systems
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