Underfloor air distribution UFAD - Revision history

Designing Buildings at 06:20, 2 September 2021

2021-09-02T06:20:38Z

← Older revision		Revision as of 06:20, 2 September 2021
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	This text was extracted from a more detailed PDF report that can be accessed in full here [[File:Underfloor_air_distibuiton_technology.pdf\|Underfloor air distibuiton technology.pdf]].		This text was extracted from a more detailed PDF report that can be accessed in full here [[File:Underfloor_air_distibuiton_technology.pdf\|Underfloor air distibuiton technology.pdf]].

−	~~= Find out more =~~	+	= Related articles =
−		+
−	== Related articles ~~on Designing Buildings Wiki =~~=	+

	* Airbrick.		* Airbrick.

Editor at 10:57, 19 January 2021

2021-01-19T10:57:58Z

← Older revision		Revision as of 10:57, 19 January 2021
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	* Thermal comfort.		* Thermal comfort.
	* Thermal labyrinths.		* Thermal labyrinths.
		+	* Underfloor air conditioning at London Grade II listed landmark.

	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Construction_techniques]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Designing Buildings at 05:30, 22 October 2020

2020-10-22T05:30:53Z

← Older revision		Revision as of 05:30, 22 October 2020
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	* Thermal labyrinths.		* Thermal labyrinths.

−	[[Category:~~Construction_techniques~~]] [[Category:~~Products_/_components~~]] [[Category:~~DCN_Product_Knowledge~~]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Editor at 12:29, 17 August 2017

2017-08-17T12:29:59Z

Show changes

Designing Buildings at 08:33, 11 September 2015

2015-09-11T08:33:26Z

← Older revision		Revision as of 08:33, 11 September 2015
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	*Dynamic thermal modelling of closed loop geothermal heat pump systems.		*Dynamic thermal modelling of closed loop geothermal heat pump systems.
	*Earth-to-air heat exchangers.		*Earth-to-air heat exchangers.
		+	*Floating floor.
	*Geothermal energy.		*Geothermal energy.
	*Geothermal pile foundations.		*Geothermal pile foundations.
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	*Ground preconditioning of supply air.		*Ground preconditioning of supply air.
	*Ground source heat pumps.		*Ground source heat pumps.
		+	*Plenum.
	*Raised floor.		*Raised floor.
	*Thermal comfort.		*Thermal comfort.

Designing Buildings at 17:48, 14 May 2015

2015-05-14T17:48:22Z

← Older revision		Revision as of 17:48, 14 May 2015
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	*Ground preconditioning of supply air.		*Ground preconditioning of supply air.
	*Ground source heat pumps.		*Ground source heat pumps.
		+	*Raised floor.
	*Thermal comfort.		*Thermal comfort.
	*Thermal labyrinths.		*Thermal labyrinths.

Designing Buildings at 11:52, 17 November 2014

2014-11-17T11:52:07Z

← Older revision		Revision as of 11:52, 17 November 2014
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	*Difficulties modelling whole-building performance.		*Difficulties modelling whole-building performance.
	*Higher initial costs.		*Higher initial costs.
−	*Cold feet and ~~draft~~ discomfort: Poorly designed (e.g., the close proximity of supply outlets to the occupants) and operated UFAD system can cause cold floor problems. To prevent this, all office floors are recommended to be carpeted.	+	*Cold feet and draught discomfort: Poorly designed (e.g., the close proximity of supply outlets to the occupants) and operated UFAD system can cause cold floor problems. To prevent this, all office floors are recommended to be carpeted.
	*Condensation and dehumidification issue: In humid climates, outside air must be properly dehumidified before delivering supply air to the underfloor plenum.		*Condensation and dehumidification issue: In humid climates, outside air must be properly dehumidified before delivering supply air to the underfloor plenum.
	*Spillage and dirt entering UFAD systems: There is the possibility of spillage and dirt entering directly into the underfloor supply airstream. Most floor diffusers, however, have been designed with catch-basins to hold the liquid from a typical soft drink spill.		*Spillage and dirt entering UFAD systems: There is the possibility of spillage and dirt entering directly into the underfloor supply airstream. Most floor diffusers, however, have been designed with catch-basins to hold the liquid from a typical soft drink spill.

Designing Buildings at 11:33, 17 November 2014

2014-11-17T11:33:52Z

← Older revision		Revision as of 11:33, 17 November 2014
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	== Related articles on Designing Buildings Wiki ==		== Related articles on Designing Buildings Wiki ==
		+	*Displacement ventilation.
	*Dynamic thermal modelling of closed loop geothermal heat pump systems.		*Dynamic thermal modelling of closed loop geothermal heat pump systems.
	*Earth-to-air heat exchangers.		*Earth-to-air heat exchangers.

Designing Buildings: moved Underfloor air distribution to Underfloor air distribution UFAD

2014-11-17T11:33:20Z

moved Underfloor air distribution to Underfloor air distribution UFAD

← Older revision

Revision as of 11:33, 17 November 2014

Designing Buildings at 13:29, 5 January 2014

2014-01-05T13:29:20Z

← Older revision		Revision as of 13:29, 5 January 2014
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	Passive diffusers are defined as air supply outlets that rely on a pressurised underfloor plenum to deliver air from the plenum through the diffuser into the conditioned space of the building.		Passive diffusers are defined as air supply outlets that rely on a pressurised underfloor plenum to deliver air from the plenum through the diffuser into the conditioned space of the building.

−	Active diffusers are defined as air supply outlets that rely on a local fan to deliver air from the plenum through the diffuser into the conditioned space of the building.	+	Active diffusers are defined as air supply outlets that rely on a local fan to deliver air from the plenum through the diffuser into the conditioned space of the building.

	Passive diffusers can generally be converted to an active diffuser by simply attaching a fan-powered outlet box to the underside of the diffuser or grill.		Passive diffusers can generally be converted to an active diffuser by simply attaching a fan-powered outlet box to the underside of the diffuser or grill.
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	*Ground preconditioning of supply air.		*Ground preconditioning of supply air.
	*Ground source heat pumps.		*Ground source heat pumps.
		+	*Thermal comfort.
	*Thermal labyrinths.		*Thermal labyrinths.

	[[Category:Construction_techniques]]		[[Category:Construction_techniques]]
	[[Category:Products_/_components]]		[[Category:Products_/_components]]