Latent heat - Revision history

Designing Buildings at 07:35, 30 June 2022

2022-06-30T07:35:30Z

← Older revision		Revision as of 07:35, 30 June 2022
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	NB: This should not be confused with the term ‘specific heat’ which refers to the heat energy per unit mass required to raise the temperature of a substance by one degree Celsius.		NB: This should not be confused with the term ‘specific heat’ which refers to the heat energy per unit mass required to raise the temperature of a substance by one degree Celsius.

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

	* Advanced phase change materials.		* Advanced phase change materials.
	* g-value.		* g-value.
	* Heat transfer.		* Heat transfer.
		+	* Law of partial pressures.
	* Mass transfer.		* Mass transfer.
	* Phase change materials.		* Phase change materials.

Designing Buildings at 06:46, 25 November 2020

2020-11-25T06:46:13Z

← Older revision		Revision as of 06:46, 25 November 2020
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	* U value.		* U value.

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

Editor at 15:04, 29 August 2018

2018-08-29T15:04:48Z

← Older revision		Revision as of 15:04, 29 August 2018
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	Specific latent heat refers to the heat required to change the state of 1 kg of a substance without a change in temperature, expressed in joules per kilogram.		Specific latent heat refers to the heat required to change the state of 1 kg of a substance without a change in temperature, expressed in joules per kilogram.

−	NB ~~this~~ should not be confused with the term ‘specific heat’ which refers to the heat energy per unit mass required to raise the temperature of a substance by one degree Celsius.	+	NB: This should not be confused with the term ‘specific heat’ which refers to the heat energy per unit mass required to raise the temperature of a substance by one degree Celsius.

	= Find out more =		= Find out more =
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	* U value.		* U value.

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

Designing Buildings at 07:18, 11 November 2016

2016-11-11T07:18:08Z

← Older revision		Revision as of 07:18, 11 November 2016
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	* Phase change.		* Phase change.
	* Refrigeration.		* Refrigeration.
		+	* Sensible heat.
		+	* Specific heat.
	* Temperature		* Temperature
	* Thermal comfort.		* Thermal comfort.

Designing Buildings at 09:18, 9 November 2016

2016-11-09T09:18:18Z

← Older revision		Revision as of 09:18, 9 November 2016
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	There are three categories of latent heat:		There are three categories of latent heat:

−	* Latent heat of fusion: When a substance ~~change~~ from solid to liquid (or back).	+	* Latent heat of fusion: When a substance changes from solid to liquid (or back).
	* Latent heat of vaporisation: When a substance changes from liquid to gas (or back).		* Latent heat of vaporisation: When a substance changes from liquid to gas (or back).
	* Latent heat of sublimation: When a substance changes solid to gas (or back).		* Latent heat of sublimation: When a substance changes solid to gas (or back).

Designing Buildings: Created page with "When heat energy is added to a substance, its temperature generally rises, and when heat energy is removed, its temperature generally falls. This is referred to as ‘sensible he..."

2016-11-09T09:17:13Z

Created page with "When heat energy is added to a substance, its temperature generally rises, and when heat energy is removed, its temperature generally falls. This is referred to as ‘sensible he..."

New page

When heat energy is added to a substance, its temperature generally rises, and when heat energy is removed, its temperature generally falls. This is referred to as ‘sensible heat’.

However, when a substance changes state, such as from a solid to a liquid, a liquid to a gas or vice versa, this change requires the addition or removal of heat energy, but does not result in a change in the temperature of the substance. This is referred to as latent heat.

There are three categories of latent heat:

* Latent heat of fusion: When a substance change from solid to liquid (or back).
* Latent heat of vaporisation: When a substance changes from liquid to gas (or back).
* Latent heat of sublimation: When a substance changes solid to gas (or back).

Specific latent heat refers to the heat required to change the state of 1 kg of a substance without a change in temperature, expressed in joules per kilogram.

NB this should not be confused with the term ‘specific heat’ which refers to the heat energy per unit mass required to raise the temperature of a substance by one degree Celsius.

= Find out more =

=== Related articles on Designing Buildings Wiki ===

* Advanced phase change materials.
* g-value.
* Heat transfer.
* Mass transfer.
* Phase change materials.
* Phase change.
* Refrigeration.
* Temperature
* Thermal comfort.
* Thermal indices.
* Thermal mass.
* Thermal optical properties.
* U value.

[[Category:Standards_/_measurements]]