Thermal indices for the built environment - Revision history

Designing Buildings at 08:31, 2 November 2020

2020-11-02T08:31:44Z

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	* Thermal environment.		* Thermal environment.

−	[[Category:Sustainability]]	+	[[Category:DCN_Collection]] [[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Sustainability]]

2020-03-01T08:27:25Z

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	k value (or lambda value λ). A measure of the intrinsic thermal conductivity of a material, that is, how easily heat passes across it. This is a fundamental property independent of thickness.		k value (or lambda value λ). A measure of the intrinsic thermal conductivity of a material, that is, how easily heat passes across it. This is a fundamental property independent of thickness.
		+
		+	Operative temperature.
		+
		+	Predicted mean vote.
		+
		+	Predicted percentage dissatisfied.

	Psychometric charts. Graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure.		Psychometric charts. Graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure.

2019-08-19T13:21:30Z

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	Solar heat gain coefficient. The fraction of incident solar radiation transmitted by a window, expressed as a number between 1 and 0, where 1 indicates the maximum possible solar heat gain, and zero, no solar heat gain. NB The difference between g-values and solar heat gain coefficients is that they use a different value for air mass.		Solar heat gain coefficient. The fraction of incident solar radiation transmitted by a window, expressed as a number between 1 and 0, where 1 indicates the maximum possible solar heat gain, and zero, no solar heat gain. NB The difference between g-values and solar heat gain coefficients is that they use a different value for air mass.
		+
		+	Temperature. A measure of the average kinetic energy of molecules.

	Thermal comfort. ‘…that condition of mind which expresses satisfaction with the thermal environment’.		Thermal comfort. ‘…that condition of mind which expresses satisfaction with the thermal environment’.
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	* Temperature.		* Temperature.
	* Thermal comfort.		* Thermal comfort.
		+	* Thermal environment.

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

2019-05-12T07:29:55Z

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	U-value (or heat transfer coefficient). A measure of the thermal conductivity of a complete building element, including its surface conductivities.		U-value (or heat transfer coefficient). A measure of the thermal conductivity of a complete building element, including its surface conductivities.

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

	* BREEAM Thermal comfort.		* BREEAM Thermal comfort.
	* Cold bridge.		* Cold bridge.
	* Condensation.		* Condensation.
		+	* Home Quality Mark high temperature reporting tool.
	* Humidity.		* Humidity.
	* Overheating.		* Overheating.

2018-03-26T14:12:58Z

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	This page presents a summary of thermal indices used in the construction industry. For more information go to the articles for each item. To add more items, click 'Edit this article' above.		This page presents a summary of thermal indices used in the construction industry. For more information go to the articles for each item. To add more items, click 'Edit this article' above.

−	----	+	-----
−		+
	Degree days. The number of days and degrees that the outside air temperature is above or below a specified base temperature. See Heating degree days.		Degree days. The number of days and degrees that the outside air temperature is above or below a specified base temperature. See Heating degree days.

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	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===
−	*Cold bridge.	+
−	*Condensation.	+	* BREEAM Thermal comfort.
−	*Humidity.	+	* Cold bridge.
−	*Overheating.	+	* Condensation.
−	*Radiation.	+	* Humidity.
−	*Temperature.	+	* Overheating.
−	*Thermal comfort.	+	* Radiation.
		+	* Temperature.
		+	* Thermal comfort.

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

2015-11-01T16:35:04Z

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	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===
−	*Cold bridge.~~<br/>~~	+	*Cold bridge.
	*Condensation.		*Condensation.
	*Humidity.		*Humidity.
		+	*Overheating.
	*Radiation.		*Radiation.
−	*Temperature.~~<br/>~~	+	*Temperature.
	*Thermal comfort.		*Thermal comfort.

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

2014-12-18T07:53:43Z

← Older revision

Revision as of 07:53, 18 December 2014

2014-12-18T07:53:06Z

2014-08-03T07:29:17Z

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	----		----

−	Degree days. The number of days and degrees that the outside air temperature is above or below a specified base temperature.	+	Degree days. The number of days and degrees that the outside air temperature is above or below a specified base temperature. See Heating degree days.

	Emissivity. The amount of long wave infra-red radiation which a surface of known temperature (such as the façade of a building) will emit to its surroundings.		Emissivity. The amount of long wave infra-red radiation which a surface of known temperature (such as the façade of a building) will emit to its surroundings.

2014-08-03T07:28:53Z

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	----		----
		+
		+	Degree days. The number of days and degrees that the outside air temperature is above or below a specified base temperature.

	Emissivity. The amount of long wave infra-red radiation which a surface of known temperature (such as the façade of a building) will emit to its surroundings.		Emissivity. The amount of long wave infra-red radiation which a surface of known temperature (such as the façade of a building) will emit to its surroundings.
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	Thermal comfort. ‘…that condition of mind which expresses satisfaction with the thermal environment’.		Thermal comfort. ‘…that condition of mind which expresses satisfaction with the thermal environment’.

−	Thermal optical properties. Characteristic radiant behaviour within the thermal spectrum.	+	Thermal optical properties. Characteristic radiant behaviour within the thermal spectrum.

	U-value (or heat transfer coefficient). A measure of the thermal conductivity of a complete building element, including its surface conductivities.		U-value (or heat transfer coefficient). A measure of the thermal conductivity of a complete building element, including its surface conductivities.