Mass transfer in buildings - Revision history

Designing Buildings at 08:39, 13 December 2021

2021-12-13T08:39:36Z

← Older revision		Revision as of 08:39, 13 December 2021
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	Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.		Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.

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

		+	* Advection.
	* Building services.		* Building services.
	* CFD.		* CFD.

Designing Buildings at 08:00, 11 December 2020

2020-12-11T08:00:57Z

← Older revision		Revision as of 08:00, 11 December 2020
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	* Thermal dynamic analysis.		* Thermal dynamic analysis.

−	[[Category:Theory]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Theory]]

Designing Buildings at 08:07, 30 June 2019

2019-06-30T08:07:58Z

← Older revision		Revision as of 08:07, 30 June 2019
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	* Radiation.		* Radiation.
	* Refrigeration.		* Refrigeration.
		+	* Thermal dynamic analysis.

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

Designing Buildings at 08:07, 30 June 2019

2019-06-30T08:07:39Z

← Older revision		Revision as of 08:07, 30 June 2019
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−	~~To help develop this article, click ‘Edit this article’ above.~~
−
−	~~----~~
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	The phrase ‘mass transfer’ describes the net movement of mass from one place to another in liquids and gases.		The phrase ‘mass transfer’ describes the net movement of mass from one place to another in liquids and gases.

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	Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.		Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.

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

−	~~=== Related articles on Designing Buildings Wiki ===~~	+	* Building services.
−	*Building services.	+	* CFD.
−	*CFD.	+	* Chiller unit.
−	*Chiller unit.	+	* Cooling tower.
−	*Cooling tower.	+	* Conduction.
−	*Conduction.	+	* Convection.
−	*Convection.	+	* Heat pump.
−	*Heat pump.	+	* Heat transfer.
−	*Heat transfer.	+	* Phase change.
−	*Phase change.	+	* Radiation.
−	*Radiation.	+	* Refrigeration.
−	*Refrigeration.	+

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

Designing Buildings: moved Mass transfer to Mass transfer in buildings

2016-01-21T14:39:13Z

moved Mass transfer to Mass transfer in buildings

← Older revision

Revision as of 14:39, 21 January 2016

Designing Buildings at 07:55, 14 November 2014

2014-11-14T07:55:33Z

← Older revision		Revision as of 07:55, 14 November 2014
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	Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.		Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.

−	= Find out ~~moreRelated~~ articles on Designing Buildings Wiki =	+	= Find out more =
		+
		+	=== Related articles on Designing Buildings Wiki ===
	*Building services.		*Building services.
	*CFD.		*CFD.

Designing Buildings at 10:38, 8 November 2014

2014-11-08T10:38:08Z

← Older revision		Revision as of 10:38, 8 November 2014
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	To help develop this article, click ‘Edit this article’ above.		To help develop this article, click ‘Edit this article’ above.

−	~~The phrase ‘mass transfer’ describes the net movement of mass from one place to another in liquid and gaseous media.~~	+	----

−	In the simplest interpretation, mass transfer refers to the movement of mass by ~~a process of~~ diffusion at a molecular level. Mass will diffuse from areas of high concentration to areas of low concentration, as described by Fick's law. In this interpretation, ~~mass transfer of a body~~ of mass by fluid motion (such as convection) is more correctly a part of fluid dynamics rather than mass transfer. That is, mass transfer is dependent on a concentration gradient ~~rather than~~ a pressure gradient.	+	The phrase ‘mass transfer’ describes the net movement of mass from one place to another in liquids and gases.
		+
		+	In the simplest interpretation, mass transfer refers to the movement of mass by diffusion at a molecular level. Mass will diffuse from areas of high concentration to areas of low concentration, as described by Fick's law. In this interpretation, the movement of mass by fluid motion (such as convection) is more correctly a part of fluid dynamics rather than mass transfer. That is, mass transfer is dependent on a concentration gradient whereas fluid motion is dependent on a temperature or pressure gradient.

	The evaporation of water is an example of simple mass transfer, as the humidity of the air close to the surface of water is higher than that in the surrounding air and so moisture vapour diffuses away from the surface of the water, allowing more water to evaporate.		The evaporation of water is an example of simple mass transfer, as the humidity of the air close to the surface of water is higher than that in the surrounding air and so moisture vapour diffuses away from the surface of the water, allowing more water to evaporate.
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	Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.		Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.

−	= Find out ~~more =~~	+	= Find out moreRelated articles on Designing Buildings Wiki =
−		+
−	~~=== Related~~ articles on Designing Buildings Wiki ===	+
	*Building services.		*Building services.
	*CFD.		*CFD.

Designing Buildings: Created page with " To help develop this article, click ‘Edit this article’ above. The phrase ‘mass transfer’ describes the net movement of mass from one place to another in liquid and ga..."

2014-11-08T10:35:01Z

Created page with " To help develop this article, click ‘Edit this article’ above. The phrase ‘mass transfer’ describes the net movement of mass from one place to another in liquid and ga..."

New page

To help develop this article, click ‘Edit this article’ above.

The phrase ‘mass transfer’ describes the net movement of mass from one place to another in liquid and gaseous media.

In the simplest interpretation, mass transfer refers to the movement of mass by a process of diffusion at a molecular level. Mass will diffuse from areas of high concentration to areas of low concentration, as described by Fick's law. In this interpretation, mass transfer of a body of mass by fluid motion (such as convection) is more correctly a part of fluid dynamics rather than mass transfer. That is, mass transfer is dependent on a concentration gradient rather than a pressure gradient.

The evaporation of water is an example of simple mass transfer, as the humidity of the air close to the surface of water is higher than that in the surrounding air and so moisture vapour diffuses away from the surface of the water, allowing more water to evaporate.

However, mass transfer is also sometimes taken to refer to fluid flows, driven by temperature and pressure gradients and to phase change.

Mass transfer in buildings is particularly important in cooling processes, such as in cooling towers, chiller units, heat pumps and so on.

Mass transfer is sometimes considered alongside heat transfer, as they are very similar and related processes.

= Find out more =

=== Related articles on Designing Buildings Wiki ===
*Building services.
*CFD.
*Chiller unit.
*Cooling tower.
*Conduction.
*Convection.
*Heat pump.
*Heat transfer.
*Phase change.
*Radiation.
*Refrigeration.

[[Category:Theory]]