Wet-bulb temperature - Revision history

Designing Buildings at 06:54, 11 March 2024

2024-03-11T06:54:33Z

← Older revision		Revision as of 06:54, 11 March 2024
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	A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.		A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Condensation		* Condensation

Designing Buildings at 12:57, 20 October 2020

2020-10-20T12:57:44Z

← Older revision		Revision as of 12:57, 20 October 2020
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	A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.		A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.

−	~~= FIND OUT MORE =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Condensation		* Condensation
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	* Temperature.		* Temperature.

−	[[Category:~~Standards_/_measurements~~]] [[Category:~~DCN_Standard~~]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Standards_/_measurements]]

Designing Buildings at 10:17, 14 January 2016

2016-01-14T10:17:40Z

← Older revision		Revision as of 10:17, 14 January 2016
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−
	Wet-bulb temperature (Twb, Tw or WBT) is the temperature recorded by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. It can be expressed in Celsius (C), Fahrenheit (F) or Kelvin (K).		Wet-bulb temperature (Twb, Tw or WBT) is the temperature recorded by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. It can be expressed in Celsius (C), Fahrenheit (F) or Kelvin (K).

	The rate of evaporation from the wet bulb, and so the temperature it records varies depending on the humidity of the air it is exposed to. The higher the humidity, the lower the rate of evaporation and so the higher the temperature recorded. Wet-bulb temperatures are the same as dry-bulb temperatures at a relative humidity of 100%, but otherwise they will be lower than dry-bulb temperatures due to the cooling effect of evaporation (described as wet-bulb depression).		The rate of evaporation from the wet bulb, and so the temperature it records varies depending on the humidity of the air it is exposed to. The higher the humidity, the lower the rate of evaporation and so the higher the temperature recorded. Wet-bulb temperatures are the same as dry-bulb temperatures at a relative humidity of 100%, but otherwise they will be lower than dry-bulb temperatures due to the cooling effect of evaporation (described as wet-bulb depression).

−	Wet-bulb temperature is an indicator of the temperature felt when damp skin is exposed to the air and so can be used to express a component of thermal comfort. The wet bulb globe temperature index (WBGT) is widely used for the assessment of heat stress ~~(see [http://www.hse.gov.uk/temperature/heatstress/measuring/wetbulb.htm HSE])~~ and combines wet-bulb temperature, dry-bulb temperature and globe temperature (mean radiant temperature).	+	Wet-bulb temperature is an indicator of the temperature felt when damp skin is exposed to the air and so can be used to express a component of thermal comfort. The wet bulb globe temperature index (WBGT) is widely used for the assessment of heat stress and combines wet-bulb temperature, dry-bulb temperature and globe temperature (mean radiant temperature).

	A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.		A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.
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	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===
−	*Condensation
−	*Dry-bulb temperature.
−	*Globe temperature.
−	*Humidity.
−	*Mean radiant temperature.
−	*Operative temperature.
−	*Predicted mean vote.
−	*Psychometric chart.
−	*Running mean temperature.
−	*Sling psychrometer.
−	*Thermal comfort.
−	*Thermal indices.
−	*Temperature.

−	[[Category:Standards_/_measurements]]	+	* Condensation
		+	* Dry-bulb temperature.
		+	* Globe temperature.
		+	* Humidity.
		+	* Mean radiant temperature.
		+	* Operative temperature.
		+	* Predicted mean vote.
		+	* Psychometric chart.
		+	* Running mean temperature.
		+	* Sling psychrometer.
		+	* Thermal comfort.
		+	* Thermal indices.
		+	* Temperature.
		+
		+	[[Category:Standards_/_measurements]] [[Category:DCN_Standard]]

Designing Buildings at 15:30, 8 July 2014

2014-07-08T15:30:45Z

← Older revision		Revision as of 15:30, 8 July 2014
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	*Temperature.		*Temperature.

−	[[Category:~~Sustainability]]~~	+	[[Category:Standards_/_measurements]]
−	~~[[Category:Theory~~]]	+

Designing Buildings at 08:02, 10 January 2014

2014-01-10T08:02:19Z

← Older revision		Revision as of 08:02, 10 January 2014
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	*Thermal indices.		*Thermal indices.
	*Temperature.		*Temperature.
−	*Wet-bulb temperature.

	[[Category:Sustainability]]		[[Category:Sustainability]]
	[[Category:Theory]]		[[Category:Theory]]

Designing Buildings at 08:01, 10 January 2014

2014-01-10T08:01:42Z

← Older revision		Revision as of 08:01, 10 January 2014
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	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===
		+	*Condensation
	*Dry-bulb temperature.		*Dry-bulb temperature.
−	*Globe temperature.~~<br/>~~	+	*Globe temperature.
−	*Psychometric ~~charts~~.	+	*Humidity.
		+	*Mean radiant temperature.
		+	*Operative temperature.
		+	*Predicted mean vote.
		+	*Psychometric chart.
		+	*Running mean temperature.
	*Sling psychrometer.		*Sling psychrometer.
	*Thermal comfort.		*Thermal comfort.
	*Thermal indices.		*Thermal indices.
		+	*Temperature.
		+	*Wet-bulb temperature.

	[[Category:Sustainability]]		[[Category:Sustainability]]
	[[Category:Theory]]		[[Category:Theory]]

Designing Buildings at 08:15, 7 January 2014

2014-01-07T08:15:49Z

← Older revision		Revision as of 08:15, 7 January 2014
Line 7:		Line 7:

	A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.		A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.
−
−	~~<br/>~~

	= FIND OUT MORE =		= FIND OUT MORE =

	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===
−	~~<ul >~~	+	*Dry-bulb temperature.
−	~~<li>~~Dry-bulb temperature.~~</li>~~	+	*Globe temperature.<br/>
−	~~<li>~~Globe temperature.<br/~~></li~~>	+	*Psychometric charts.
−	~~<li>~~Psychometric charts.~~</li>~~	+	*Sling psychrometer.
−	~~<li>~~Sling psychrometer.~~</li>~~	+	*Thermal comfort.
−	~~<li>~~Thermal comfort.~~</li>~~	+	*Thermal indices.
−	~~<li>~~Thermal indices.~~</li>~~	+
−	~~</ul>~~	+

	[[Category:Sustainability]]		[[Category:Sustainability]]
	[[Category:Theory]]		[[Category:Theory]]

86.166.224.29 at 08:15, 7 January 2014

2014-01-07T08:15:24Z

← Older revision		Revision as of 08:15, 7 January 2014
Line 7:		Line 7:

	A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.		A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.
		+
		+	<br/>
		+
		+	= FIND OUT MORE =
		+
		+	=== Related articles on Designing Buildings Wiki ===
		+	<ul >
		+	<li>Dry-bulb temperature.</li>
		+	<li>Globe temperature.<br/></li>
		+	<li>Psychometric charts.</li>
		+	<li>Sling psychrometer.</li>
		+	<li>Thermal comfort.</li>
		+	<li>Thermal indices.</li>
		+	</ul>

	[[Category:Sustainability]]		[[Category:Sustainability]]
	[[Category:Theory]]		[[Category:Theory]]

Designing Buildings at 14:33, 3 January 2014

2014-01-03T14:33:42Z

← Older revision		Revision as of 14:33, 3 January 2014
Line 1:		Line 1:

−	Wet-bulb temperature (Twb or Tw) is the temperature recorded by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. It can be expressed in Celsius (C), Fahrenheit (F) or Kelvin (K).	+	Wet-bulb temperature (Twb, Tw or WBT) is the temperature recorded by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. It can be expressed in Celsius (C), Fahrenheit (F) or Kelvin (K).

	The rate of evaporation from the wet bulb, and so the temperature it records varies depending on the humidity of the air it is exposed to. The higher the humidity, the lower the rate of evaporation and so the higher the temperature recorded. Wet-bulb temperatures are the same as dry-bulb temperatures at a relative humidity of 100%, but otherwise they will be lower than dry-bulb temperatures due to the cooling effect of evaporation (described as wet-bulb depression).		The rate of evaporation from the wet bulb, and so the temperature it records varies depending on the humidity of the air it is exposed to. The higher the humidity, the lower the rate of evaporation and so the higher the temperature recorded. Wet-bulb temperatures are the same as dry-bulb temperatures at a relative humidity of 100%, but otherwise they will be lower than dry-bulb temperatures due to the cooling effect of evaporation (described as wet-bulb depression).

Designing Buildings at 14:19, 3 January 2014

2014-01-03T14:19:44Z

← Older revision		Revision as of 14:19, 3 January 2014
Line 1:		Line 1:

−	Wet-bulb temperature (Twb or Tw) is the temperature recorded by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. It can be expressed in Celsius (C), Fahrenheit (F) or Kelvin (K).	+	Wet-bulb temperature (Twb or Tw) is the temperature recorded by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. It can be expressed in Celsius (C), Fahrenheit (F) or Kelvin (K).

−	The rate of evaporation from the wet bulb, and so the temperature it records varies depending on the humidity of the air it is exposed to. The higher the humidity, the lower the rate of evaporation and so the higher the temperature recorded. Wet-bulb temperatures are the same as dry bulb temperatures at a relative humidity of 100%, but otherwise will be lower than dry bulb temperatures due to the cooling effect of evaporation (described as wet-bulb depression).	+	The rate of evaporation from the wet bulb, and so the temperature it records varies depending on the humidity of the air it is exposed to. The higher the humidity, the lower the rate of evaporation and so the higher the temperature recorded. Wet-bulb temperatures are the same as dry-bulb temperatures at a relative humidity of 100%, but otherwise they will be lower than dry-bulb temperatures due to the cooling effect of evaporation (described as wet-bulb depression).

−	~~The wet~~-bulb temperature is an indicator of the temperature felt when ~~the~~ damp skin is exposed to ~~moving~~ air and so can be used to ~~measure~~ a component of thermal comfort. The wet bulb globe temperature (WBGT) ~~index~~ is widely used for the assessment of heat stress (see [http://www.hse.gov.uk/temperature/heatstress/measuring/wetbulb.htm HSE]) and combines wet-bulb temperature, dry-bulb temperature and globe temperature (mean radiant temperature).	+	Wet-bulb temperature is an indicator of the temperature felt when damp skin is exposed to the air and so can be used to express a component of thermal comfort. The wet bulb globe temperature index (WBGT) is widely used for the assessment of heat stress (see [http://www.hse.gov.uk/temperature/heatstress/measuring/wetbulb.htm HSE]) and combines wet-bulb temperature, dry-bulb temperature and globe temperature (mean radiant temperature).

	A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.		A sling psychrometer holds both wet and dry-bulb thermometers and can be used to express the physical and thermal properties of moist air on a psychrometric chart.
		+
		+	[[Category:Sustainability]]
		+	[[Category:Theory]]