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It is common to classify ventilation systems by functions, distribution strategies, ventilation principles - or by combinations of them all.

Classifying by Function

It is common to classify a ventilation system by function:

• Ventilation - Supply and evacuating of air with the main purpose to keep the atmospheric climate according the requirements
• Climate - Supply and evacuating air with main purpose to keep the temperature and the atmospheric climate according requirements
• Heating or cooling - Recycling system with the main purpose to supply the building with necessary heat or cooling
• Combined system - The functions above more or less combined in one system

Classifying by Distribution

A ventilation system can also be classified by distribution:

• Centralized - A central plant supplies and extract air to and from the whole building
• Decentralized - Each room/area of the building has it's own ventilation unit
• Combined - Both centralized and decentralized systems used

Classifying by Ventilation Principle

A ventilation system can also be classified by the ventilation principle and air flow:

• Displacement air flow through the room - CAV (Constant Air Volume) or VAV (Variable air volume
• Mixed air flow through the room - CAV (Constant Air Volume) or VAV (Variable air volume.

Examples of Ventilation Systems Classifications

• Single-Zone Constant-Volume System
• Single-Zone Constant-Volume System with Reheating
• Multizone System
• Induction Unit System
• Variable-Air-Volume System
• Dual-Duct System

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Related Topics

• Ventilation - Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more

Related Documents

• Acoustic Calculation of Ventilation Systems - A procedure for acoustic noise calculation of ventilation systems
• Design of Ventilation Systems - A design procedure of ventilation systems, with air flow rates, heat and cooling loads, air shifts according occupants, air supply principles
• Selecting Ventilation System in Comfort Environments - A quick selection guide of ventilation system in comfort environments