Psychrometric charts - Revision history

Designing Buildings at 06:46, 11 March 2024

2024-03-11T06:46:13Z

← Older revision		Revision as of 06:46, 11 March 2024
Line 1:		Line 1:
	[[File:Psychrometric_chart.png\|link=File:Psychrometric_chart.png]]		[[File:Psychrometric_chart.png\|link=File:Psychrometric_chart.png]]

−	[https://www.bsria.com/uk/product/~~DXzEjr~~/~~thermal_comfort_tg_222023_a15d25e1 Thermal Comfort (TG 22~~/~~2023)~~], written by ~~David Bleicher and Calum Maclean~~ and published by BSRIA in ~~2023~~ defines ~~psychrometrics~~ as: ~~‘…the~~ study of properties of moist air.’	+	[https://www.bsria.com/uk/product/Bwxegr/useful_information_guide_bg_872024_a15d25e1/ BG 87/2024, Useful Information Guide], written by Chin Hang “Kay” Lam and published by BSRIA in 2024, defines Psychrometrics as: ‘The study of the properties of moist air, including properties such as relative humidity, dry bulb temperature and wet bulb temperature.’

	Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).		Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).
Line 19:		Line 19:
	Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.		Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.

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

	* Dry-bulb temperature.		* Dry-bulb temperature.

Designing Buildings at 08:54, 2 March 2023

2023-03-02T08:54:12Z

← Older revision		Revision as of 08:54, 2 March 2023
Line 1:		Line 1:
	[[File:Psychrometric_chart.png\|link=File:Psychrometric_chart.png]]		[[File:Psychrometric_chart.png\|link=File:Psychrometric_chart.png]]
		+
		+	[https://www.bsria.com/uk/product/DXzEjr/thermal_comfort_tg_222023_a15d25e1 Thermal Comfort (TG 22/2023)], written by David Bleicher and Calum Maclean and published by BSRIA in 2023 defines psychrometrics as: ‘…the study of properties of moist air.’

	Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).		Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).

Designing Buildings at 08:30, 22 September 2020

2020-09-22T08:30:36Z

← Older revision		Revision as of 08:30, 22 September 2020
Line 1:		Line 1:
−	[[File:~~Psychrometric chart~~.png]]	+	[[File:Psychrometric_chart.png\|link=File:Psychrometric_chart.png]]

	Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).		Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).
Line 33:		Line 33:
	* Wet-bulb temperature.		* Wet-bulb temperature.

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

Designing Buildings at 08:32, 1 March 2020

2020-03-01T08:32:36Z

← Older revision		Revision as of 08:32, 1 March 2020
Line 1:		Line 1:
−	[[File:~~PsychrometricChart SeaLevel SI svg~~.png~~\|800px~~]]	+	[[File:Psychrometric chart.png]]

	Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).		Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).
Line 33:		Line 33:
	* Wet-bulb temperature.		* Wet-bulb temperature.

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

Designing Buildings at 08:29, 1 March 2020

2020-03-01T08:29:47Z

← Older revision		Revision as of 08:29, 1 March 2020
Line 1:		Line 1:
		+	[[File:PsychrometricChart SeaLevel SI svg.png\|800px]]
		+
	Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).		Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).

Line 14:		Line 16:

	Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.		Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.
−
−	~~[[File:PsychrometricChart SeaLevel SI svg.png\|800px]]~~

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

Designing Buildings at 08:29, 1 March 2020

2020-03-01T08:29:10Z

← Older revision		Revision as of 08:29, 1 March 2020
Line 15:		Line 15:
	Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.		Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.

−	[[File:~~PsychrometricChart_SeaLevel_SI_svg~~.png\|800px~~\|link=File:800px-PsychrometricChart_SeaLevel_SI_svg.png~~]]	+	[[File:PsychrometricChart SeaLevel SI svg.png\|800px]]

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

Designing Buildings at 08:25, 1 March 2020

2020-03-01T08:25:51Z

← Older revision		Revision as of 08:25, 1 March 2020
Line 15:		Line 15:
	Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.		Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.

−	= [[File:PsychrometricChart_SeaLevel_SI_svg.png\|800px\|link=File:800px-PsychrometricChart_SeaLevel_SI_svg.png]]Related articles on Designing Buildings Wiki =	+	[[File:PsychrometricChart_SeaLevel_SI_svg.png\|800px\|link=File:800px-PsychrometricChart_SeaLevel_SI_svg.png]]
		+
		+	= Related articles on Designing Buildings Wiki =

	* Dry-bulb temperature.		* Dry-bulb temperature.

Designing Buildings at 08:25, 1 March 2020

2020-03-01T08:25:00Z

← Older revision		Revision as of 08:25, 1 March 2020
Line 1:		Line 1:
−
	Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).		Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).

	Typically, the properties represented on psychrometric charts are:		Typically, the properties represented on psychrometric charts are:
−	*Dry-bulb temperature: A measure of air temperature recorded by a thermometer exposed to the air but shielded from radiation and moisture.	+
−	*Wet-bulb temperature: The temperature recorder by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. 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.	+	* Dry-bulb temperature: A measure of air temperature recorded by a thermometer exposed to the air but shielded from radiation and moisture.
−	*Relative humidity: The ratio of the actual vapour pressure relative to the vapour pressure of saturated air at the same temperature, expressed as a percentage.	+	* Wet-bulb temperature: The temperature recorder by a thermometer that has its bulb wrapped in cloth and moistened with distilled water. 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.
−	*Specific volume: The volume of a unit weight of dry air.	+	* Relative humidity: The ratio of the actual vapour pressure relative to the vapour pressure of saturated air at the same temperature, expressed as a percentage.
−	*Dew point temperature: The highest temperature at which water vapour will condense.	+	* Specific volume: The volume of a unit weight of dry air.
−	*Humidity ratio: The dry-basis moisture content of air expressed as the weight of water vapour per unit weight of dry air.	+	* Dew point temperature: The highest temperature at which water vapour will condense.
−	*Enthalpy: The energy content of air.	+	* Humidity ratio: The dry-basis moisture content of air expressed as the weight of water vapour per unit weight of dry air.
		+	* Enthalpy: The energy content of air.

	The state of moist air can be determined from any two of these properties, from which all other properties can then be determined.		The state of moist air can be determined from any two of these properties, from which all other properties can then be determined.
Line 15:		Line 15:
	Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.		Atmospheric pressure varies with altitude and so a number of psychrometric charts are available for different atmospheric pressures, however, for altitudes of less than 600m the sea-level psychrometric chart is often considered adequate.

−	[[File:~~800px-PsychrometricChart SeaLevel SI svg~~.png\|~~800x585px~~\|~~alt~~=800px-~~PsychrometricChart SeaLevel SI svg~~.png]]	+	= [[File:PsychrometricChart_SeaLevel_SI_svg.png\|800px\|link=File:800px-PsychrometricChart_SeaLevel_SI_svg.png]]Related articles on Designing Buildings Wiki =
−		+
−	~~= Find out more~~ =	+

−	~~=== Related articles on Designing Buildings Wiki ===~~	+	* Dry-bulb temperature.
−	*Dry-bulb temperature.	+	* Globe temperature.
−	*Globe temperature.	+	* Humidity.
−	*Humidity.	+	* Mean radiant temperature.
−	*Mean radiant temperature.	+	* Operative temperature.
−	*Operative temperature.	+	* Predicted percentage dissatisfied.
−	*Predicted mean vote.	+	* Predicted mean vote.
−	*Running mean temperature.	+	* Running mean temperature.
−	*Sling psychrometer.	+	* Sling psychrometer.
−	*Thermal comfort.	+	* Thermal comfort.
−	*Thermal indices.	+	* Thermal indices.
−	*Temperature.	+	* Temperature.
−	*Wet-bulb temperature.	+	* Wet-bulb temperature.

	[[Category:Standards_/_measurements]]		[[Category:Standards_/_measurements]]

Designing Buildings: moved Psychometric charts to Psychrometric charts

2014-09-18T10:47:24Z

moved Psychometric charts to Psychrometric charts

← Older revision

Revision as of 10:47, 18 September 2014

86.176.168.15 at 10:46, 18 September 2014

2014-09-18T10:46:51Z

← Older revision		Revision as of 10:46, 18 September 2014
Line 1:		Line 1:

−	~~psychrometric~~ charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).	+	Psychrometric charts are complex graphs that can be used to assess the physical and thermodynamic properties of gas-vapour mixtures at a constant pressure. They are often used to assess the properties of moist air. This can be useful in the design of heating, ventilation and air-conditioning systems for buildings, and psychrometric charts often include a zone in the middle that represents the range of conditions that people find comfortable under different circumstances (such as summer and winter).

	Typically, the properties represented on psychrometric charts are:		Typically, the properties represented on psychrometric charts are: