Comparison between Different Air Distribution Systems

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The aim of an air conditioning system is to remove excess heat in a room and replace room air with fresh air to obtain a high air quality. It is not sufficient to remove heat and contaminated air, it is also necessary to distribute and control the air movement in the room to create thermal comfort in the occupied zone.

Most air distribution systems are based on mixing ventilation with ceiling or wall-mounted diffusers or on displacement ventilation with wall-mounted low velocity diffusers. New principles for room air distribution were introduced during the last decades, as the textile terminals mounted in the ceiling and radial diffusers with swirling flow also mounted in the ceiling.

This paper addresses five air distribution systems in all, namely mixing ventilation from a wallmounted terminal, mixing ventilation from a ceiling-mounted diffuser, mixing ventilation from a ceiling-mounted diffuser with a swirling flow, displacement ventilation from a wall-mounted low velocity diffuser and a low impulse system based on a textile terminal.

Original languageEnglish
Publication date2006
Number of pages10
Publication statusPublished - 2006
EventSlovene Klima Forum, Hidria Institute Klima - Godovic, Slovenia
Duration: 19 May 2010 → …


ConferenceSlovene Klima Forum, Hidria Institute Klima
Period19/05/2010 → …


  • Air conditioning systems
  • Ventilation

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