Temperature in buildings - Revision history

Designing Buildings at 08:48, 1 July 2022

2022-07-01T08:48:47Z

← Older revision		Revision as of 08:48, 1 July 2022
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	* Thermal environment.		* Thermal environment.
	* Thermal indices.		* Thermal indices.
		+	* Thermodynamic temperature.
	* Thermostat.		* Thermostat.
	* Wet-bulb temperature.		* Wet-bulb temperature.

Designing Buildings at 08:45, 1 July 2022

2022-07-01T08:45:15Z

← Older revision		Revision as of 08:45, 1 July 2022
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	* Sky temperature.		* Sky temperature.
	* Sling psychrometer.		* Sling psychrometer.
		+	* Temperature factor.
	* Thermal comfort.		* Thermal comfort.
	* Thermal environment.		* Thermal environment.

Designing Buildings at 06:10, 24 June 2022

2022-06-24T06:10:46Z

← Older revision		Revision as of 06:10, 24 June 2022
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	= Introduction =		= Introduction =

−	Temperature is a measure of the [http://www.bbc.co.uk/education/guides/zc4xsbk/revision/4 average kinetic energy of molecules]. This is important as the average temperature relates to the movement of molecules in a substance or material. A cup of boiling water will be hotter than the Atlantic Ocean but the latter will contain much more heat than the former.	+	Temperature is a measure of the [http://www.bbc.co.uk/education/guides/zc4xsbk/revision/4 average kinetic energy of molecules].

−	Temperature will tend to vary throughout a body depending on its heat exchange with its surroundings. Temperature can be expressed in degrees Celsius (°C), kelvin (°k) or Fahrenheit (°F), with Kelvin the scientific measure, Celsius ~~being used as it~~ relates to the properties of water, zero is freezing and 100 is steam..	+	Average temperature relates to the overall movement of molecules in a substance or material. Temperature will tend to vary throughout a body depending on its heat exchange with its surroundings. Temperature can be expressed in degrees Celsius (°C), kelvin (°k) or Fahrenheit (°F), with Kelvin being the scientific measure. Celsius relates to the properties of water, where zero is freezing and 100 is steam.

−	Measuring temperature actually records the temperature of the sensor that is being used to carry out the measurement ~~(usually a thermometer)~~. As a consequence, different types of measurement ~~and calculation~~ have been developed to represent the temperature of different types of body. Some of these methods are described below.	+	Measuring temperature actually records the temperature of the sensor that is being used to carry out the measurement. As a consequence, different types of measurement have been developed to represent the temperature of different types of body. Some of these methods are described below.

	= Thermal comfort =		= Thermal comfort =
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	Temperature can be a particularly important measure in the built environment when considering the thermal comfort of occupants and in the design of building services systems. As a consequence, many of the measures of temperature are intended to represent the thermal comfort of people, or some component of their thermal comfort. Thermal comfort is a complex science in its own right.		Temperature can be a particularly important measure in the built environment when considering the thermal comfort of occupants and in the design of building services systems. As a consequence, many of the measures of temperature are intended to represent the thermal comfort of people, or some component of their thermal comfort. Thermal comfort is a complex science in its own right.

−	Making a building comfortable is not as simple as delivering an average internal air temperature of 21 °C throughout the year. Thermal comfort is dependent on a range of environmental factors in addition to air temperature, such as; air velocity, radiant temperature, relative humidity and the uniformity of conditions. It also depends on personal factors such as; clothing, metabolic heat, state of health, acclimatisation, expectations, and even access to food and drink. See thermal comfort for more information.	+	Making a building comfortable is not as simple as delivering an average internal air temperature of 21 °C throughout the year. Thermal comfort is dependent on a range of environmental factors in addition to air temperature, such as; air velocity, radiant temperature, relative humidity and the uniformity of conditions. It also depends on personal factors such as; clothing, metabolic heat, state of health, acclimatisation, expectations, and even access to food and drink.
		+
		+	BS EN ISO 7730 defines thermal comfort as '…that condition of mind which expresses satisfaction with the thermal environment.', ie the condition when someone is not feeling either too hot or too cold. The Health and Safety Executive suggest that an environment can be said to achieve 'reasonable comfort' when at least 80% of its occupants are thermally comfortable.
		+
		+	See thermal comfort for more information.

	NB: Heat stress is a form of overheating that the occupants of a building may experience when the measures that their body uses to regulate internal temperature begin to fail. This can occur for example in buildings where an industrial process is being carried out, such as; smelting, brick-firing, cooking, and so on. See Heat stress for more information.		NB: Heat stress is a form of overheating that the occupants of a building may experience when the measures that their body uses to regulate internal temperature begin to fail. This can occur for example in buildings where an industrial process is being carried out, such as; smelting, brick-firing, cooking, and so on. See Heat stress for more information.
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	Sling psychrometers hold a wet-bulb thermometer and a dry-bulb thermometer. They can be used to determine the physical and thermal properties of moist air by using standard tables. See sling psychrometer for more information.		Sling psychrometers hold a wet-bulb thermometer and a dry-bulb thermometer. They can be used to determine the physical and thermal properties of moist air by using standard tables. See sling psychrometer for more information.
−
−	~~== Thermal comfort ==~~
−
−	BS EN ISO 7730 defines thermal comfort as '…that condition of mind which expresses satisfaction with the thermal environment.', ie the condition when someone is not feeling either too hot or too cold. The Health and Safety Executive suggest that an environment can be said to achieve 'reasonable comfort' when at least 80% of its occupants are thermally comfortable. See Thermal comfort for more information.

	== Operative temperature ==		== Operative temperature ==
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	== Predicted mean vote ==		== Predicted mean vote ==

−	~~The predicted~~ mean vote (PMV) is an empirical fit to the sensation of thermal comfort. It predicts the average vote of a large group of people on the a seven-point thermal sensation scale where +3 is hot and -3 is cold. See predicted mean vote for more information.	+	Predicted mean vote (PMV) is an empirical fit to the sensation of thermal comfort. It predicts the average vote of a large group of people on the a seven-point thermal sensation scale where +3 is hot and -3 is cold. See predicted mean vote for more information.

	== Running mean temperature ==		== Running mean temperature ==
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	Median accumulated temperature above 0°C from January to June which gives a measure of heat energy input and soil drying potential and correlates with crop growth and yield.		Median accumulated temperature above 0°C from January to June which gives a measure of heat energy input and soil drying potential and correlates with crop growth and yield.

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

	* Accumulated temperature.		* Accumulated temperature.

Designing Buildings at 07:44, 10 June 2022

2022-06-10T07:44:54Z

← Older revision		Revision as of 07:44, 10 June 2022
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	* Predicted mean vote.		* Predicted mean vote.
	* Psychometric chart.		* Psychometric chart.
		+	* Reflected apparent temperature.
	* Running mean temperature.		* Running mean temperature.
	* Sky temperature.		* Sky temperature.

Designing Buildings at 11:56, 15 September 2020

2020-09-15T11:56:49Z

← Older revision		Revision as of 11:56, 15 September 2020
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	* Wet-bulb globe temperature.		* Wet-bulb globe temperature.

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

Designing Buildings at 09:04, 18 August 2020

2020-08-18T09:04:01Z

← Older revision		Revision as of 09:04, 18 August 2020
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	* Accumulated temperature.		* Accumulated temperature.
	* Dry-bulb temperature.		* Dry-bulb temperature.
		+	* Excess cold.
	* Globe temperature.		* Globe temperature.
	* Human comfort in buildings.		* Human comfort in buildings.
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	* Wet-bulb globe temperature.		* Wet-bulb globe temperature.

−	[[Category:Standards_/_measurements]]	+	[[Category:Standards_/_measurements]] [[Category:DCN_Standard]]

Designing Buildings at 08:28, 1 March 2020

2020-03-01T08:28:21Z

← Older revision		Revision as of 08:28, 1 March 2020
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	* Overheating.		* Overheating.
	* Overheating - assessment protocol.		* Overheating - assessment protocol.
		+	* Predicted percentage dissatisfied.
	* Predicted mean vote.		* Predicted mean vote.
	* Psychometric chart.		* Psychometric chart.

Designing Buildings at 13:18, 19 August 2019

2019-08-19T13:18:16Z

← Older revision		Revision as of 13:18, 19 August 2019
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	* Sling psychrometer.		* Sling psychrometer.
	* Thermal comfort.		* Thermal comfort.
		+	* Thermal environment.
	* Thermal indices.		* Thermal indices.
	* Thermostat.		* Thermostat.

Designing Buildings: Reverted edits by 81.105.136.166 (talk) to last revision by Designing Buildings

2018-12-08T20:58:15Z

Reverted edits by 81.105.136.166 (talk) to last revision by Designing Buildings

← Older revision		Revision as of 20:58, 8 December 2018
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	Temperature is a measure of the [http://www.bbc.co.uk/education/guides/zc4xsbk/revision/4 average kinetic energy of molecules]. This is important as the average temperature relates to the movement of molecules in a substance or material. A cup of boiling water will be hotter than the Atlantic Ocean but the latter will contain much more heat than the former.		Temperature is a measure of the [http://www.bbc.co.uk/education/guides/zc4xsbk/revision/4 average kinetic energy of molecules]. This is important as the average temperature relates to the movement of molecules in a substance or material. A cup of boiling water will be hotter than the Atlantic Ocean but the latter will contain much more heat than the former.

−	Temperature will tend to vary throughout a body depending on its heat exchange with its surroundings. Temperature can be expressed in degrees Celsius (°C), kelvin (°k) or Fahrenheit (°F), with Kelvin the scientific ~~mea aye after the wee man sure~~, Celsius being used as it relates to the properties of water, zero is freezing and 100 is steam..	+	Temperature will tend to vary throughout a body depending on its heat exchange with its surroundings. Temperature can be expressed in degrees Celsius (°C), kelvin (°k) or Fahrenheit (°F), with Kelvin the scientific measure, Celsius being used as it relates to the properties of water, zero is freezing and 100 is steam..

−	Measuring temperature actually records ~~aye after the wee man~~ the temperature of the sensor that is being used to carry out the measurement (usually a thermometer). As a consequence, different types of measurement and calculation have been developed to represent the temperature of different types of body. Some of these methods are described below.	+	Measuring temperature actually records the temperature of the sensor that is being used to carry out the measurement (usually a thermometer). As a consequence, different types of measurement and calculation have been developed to represent the temperature of different types of body. Some of these methods are described below.

	= Thermal comfort =		= Thermal comfort =

81.105.136.166 at 19:50, 8 December 2018

2018-12-08T19:50:23Z

← Older revision		Revision as of 19:50, 8 December 2018
Line 3:		Line 3:
	Temperature is a measure of the [http://www.bbc.co.uk/education/guides/zc4xsbk/revision/4 average kinetic energy of molecules]. This is important as the average temperature relates to the movement of molecules in a substance or material. A cup of boiling water will be hotter than the Atlantic Ocean but the latter will contain much more heat than the former.		Temperature is a measure of the [http://www.bbc.co.uk/education/guides/zc4xsbk/revision/4 average kinetic energy of molecules]. This is important as the average temperature relates to the movement of molecules in a substance or material. A cup of boiling water will be hotter than the Atlantic Ocean but the latter will contain much more heat than the former.

−	Temperature will tend to vary throughout a body depending on its heat exchange with its surroundings. Temperature can be expressed in degrees Celsius (°C), kelvin (°k) or Fahrenheit (°F), with Kelvin the scientific ~~measure~~, Celsius being used as it relates to the properties of water, zero is freezing and 100 is steam..	+	Temperature will tend to vary throughout a body depending on its heat exchange with its surroundings. Temperature can be expressed in degrees Celsius (°C), kelvin (°k) or Fahrenheit (°F), with Kelvin the scientific mea aye after the wee man sure, Celsius being used as it relates to the properties of water, zero is freezing and 100 is steam..

−	Measuring temperature actually records the temperature of the sensor that is being used to carry out the measurement (usually a thermometer). As a consequence, different types of measurement and calculation have been developed to represent the temperature of different types of body. Some of these methods are described below.	+	Measuring temperature actually records aye after the wee man the temperature of the sensor that is being used to carry out the measurement (usually a thermometer). As a consequence, different types of measurement and calculation have been developed to represent the temperature of different types of body. Some of these methods are described below.

	= Thermal comfort =		= Thermal comfort =