Glossary:Glossary-Plus - Versionsgeschichte

SebSta am 10. Februar 2015 um 15:01 Uhr

2015-02-10T15:01:19Z

← Nächstältere Version		Version vom 10. Februar 2015, 17:01 Uhr
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	It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.		It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.

	<math>g = \tau_e + q_i [1]</math>		:<math>g = \tau_e + q_i [1]</math>

SebSta am 10. Februar 2015 um 15:01 Uhr

2015-02-10T15:01:06Z

← Nächstältere Version		Version vom 10. Februar 2015, 17:01 Uhr
Zeile 7:		Zeile 7:
	It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.		It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.

	:<math>g = \tau_e + q_i [1]</math>		<math>g = \tau_e + q_i [1]</math>

Tes: /* Glossary: WUFI-Plus */

2009-07-08T05:53:24Z

Glossary: WUFI-Plus

@@ Zeile 1: / Zeile 1: @@
 = Glossary: WUFI-Plus =
 === Solar Heat Gain Coefficient ===
@@ Zeile 65: / Zeile 128: @@
 [2] National Fenestration Rating Council Incorporated, NFRC 201-2001, Interim Standard Test Method for Measuring the Solar Heat Gain Coefficient of Fenestration Systems Using Calorimetry Hot Box Method

Tes: /* g-Value */

2009-07-07T10:12:59Z

g-Value

← Nächstältere Version		Version vom 7. Juli 2009, 12:12 Uhr
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	The radiation power <math>\phi_e</math> through the component can be separated as following:		The radiation power <math>\phi_e</math> through the component can be separated as following:
			{\|
	transmitted part <math>\tau_e \phi_e</math> direct transmittance <math>\tau_e</math>		\|-
			\|transmitted part \|\|<math>\tau_e \phi_e</math> \|\| \|\|direct transmittance \|\|<math>\tau_e</math>
	reflected part <math>\rho_e\phi_e</math> direct reflectance <math>\rho_e</math>		\|-
			\|reflected part \|\|<math>\rho_e\phi_e</math> \|\| \|\|direct reflectance \|\|<math>\rho_e</math>
	absorbed part <math>\alpha_e \phi_e</math> direct absorptance <math>\alpha_e</math> [1]		\|-
			\|absorbed part \|\|<math>\alpha_e \phi_e</math> \|\| \|\|direct absorptance \|\|<math>\alpha_e</math> [1]
			\|}
	Where		Where

Zeile 96:		Zeile 97:
	Where		Where

	<math>S_\lambda</math> spectral distribution of solar radiation		{\|
			\|-
	<math>\tau(\lambda)</math> spectral transmittance of the glazing		\|<math>S_\lambda</math> \|\|spectral distribution of solar radiation
			\|-
	<math>\Delta\lambda</math> range of wavelength		\|<math>\tau(\lambda)</math> \|\|spectral transmittance of the glazing
			\|-
			\|<math>\Delta\lambda</math> \|\|range of wavelength
			\|}

	Inward flowing fraction of energy <math>q_i</math>:		Inward flowing fraction of energy <math>q_i</math>:

Tes: /* Solar Heat Gain Coefficient */

2009-07-06T06:54:22Z

Solar Heat Gain Coefficient

← Nächstältere Version		Version vom 6. Juli 2009, 08:54 Uhr
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	The total product SHGC		The total product SHGC

	:<math>SHGC_t = \frac{[(SHGC_f \cdot A_f) + (SHGC_d \cdot A_d) + (SHGC_e \cdot A_e) + (~~SHGC_de~~ \cdot ~~A_de~~) + (SHGC_c \cdot A_c)}{A_{pf}}</math> [1]		:<math>SHGC_t = \frac{(SHGC_f \cdot A_f) + (SHGC_d \cdot A_d) + (SHGC_e \cdot A_e) + (SHGC_{de} \cdot A_{de}) + (SHGC_c \cdot A_c)}{A_{pf}}</math> [1]

	Where		Where

Tes: /* Solar Heat Gain Coefficient */

2009-07-06T06:46:25Z

Solar Heat Gain Coefficient

@@ Zeile 13: / Zeile 13: @@
 [[http://resourcecenter.pnl.gov/cocoon/morf/ResourceCenter/article//93]]
 ''ASHRAE Handbook 2005 Fundamentals''
 ===g-Value===

Tes: /* g-Value */

2009-07-06T06:38:20Z

g-Value

← Nächstältere Version		Version vom 6. Juli 2009, 08:38 Uhr
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	For the calculation of the g-value ~~are~~ the direct transmittance <math>\tau_e</math> and the direct absorption <math>\alpha_e</math> needed. From the <math>\alpha_e</math> only the inward flowing fraction of the energy, the secondary absorptance <math>q_i</math> is relevant.		For the calculation of the g-value the direct transmittance <math>\tau_e</math> and the direct absorption <math>\alpha_e</math> are needed. From the <math>\alpha_e</math> only the inward flowing fraction of the energy, the secondary absorptance <math>q_i</math> is relevant.

Tes: /* g-Value */

2009-07-06T06:37:42Z

g-Value

← Nächstältere Version		Version vom 6. Juli 2009, 08:37 Uhr
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	~~[[Plus:Test]]~~
	The g-value is a value for the pass of energy through a transparent component.		The g-value is a value for the pass of energy through a transparent component.
	It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.		It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.
Zeile 23:		Zeile 22:
	:<math>g = \tau_e + q_i [1]</math>		:<math>g = \tau_e + q_i [1]</math>

	~~The radiation power \phi_e through the component can be separated as following:~~

	transmitted part \tau_e \phi_e direct transmittance \tau_e		The radiation power <math>\phi_e</math> through the component can be separated as following:
	<br />reflected part \rho_e\phi_e direct reflectance \rho_e
	<br />absorbed part \alpha_e \phi_e direct absorptance \alpha_e [1]		transmitted part <math>\tau_e \phi_e</math> direct transmittance <math>\tau_e</math>

			reflected part <math>\rho_e\phi_e</math> direct reflectance <math>\rho_e</math>

			absorbed part <math>\alpha_e \phi_e</math> direct absorptance <math>\alpha_e</math> [1]

	Where		Where
Zeile 33:		Zeile 35:
	:<math>\tau_e + \rho_e + \alpha_e = 1</math> [1]		:<math>\tau_e + \rho_e + \alpha_e = 1</math> [1]

	For the calculation of the g-value are the direct transmittance \tau_e and the direct absorption \alpha_e needed. From the \alpha_e only the inward flowing fraction of the energy, the secondary absorptance q_i is relevant.

	Direct transmittance \tau_e		For the calculation of the g-value are the direct transmittance <math>\tau_e</math> and the direct absorption <math>\alpha_e</math> needed. From the <math>\alpha_e</math> only the inward flowing fraction of the energy, the secondary absorptance <math>q_i</math> is relevant.
	:<math>\tau_e = \frac{\sum ~~S_y~~ \tau(\~~lamda~~) \Delta\~~lamda~~}{\sum ~~S_y~~ \Delta\~~lamda~~}</math> [1]

			Direct transmittance <math>\tau_e</math>
			:<math>\tau_e = \frac{\sum S_\lambda \tau(\lambda) \Delta\lambda}{\sum S_\lambda \Delta\lambda}</math> [1]

	Where		Where
	~~S_y spectral distribution of solar radiation~~
	~~\tau(\lamda) spectral transmittance of the glazing~~
	~~\Delta\lamda range of wavelength~~

	Inward flowing fraction of energy q_i:		<math>S_\lambda</math> spectral distribution of solar radiation

			<math>\tau(\lambda)</math> spectral transmittance of the glazing

			<math>\Delta\lambda</math> range of wavelength


			Inward flowing fraction of energy <math>q_i</math>:

	single glazing fenestration		single glazing fenestration

	:<math>q_i = frac{\alpha_e h_i}{h_e + h_i}</math> [1]		:<math>q_i = \frac {\alpha_e h_i }{h_e + h_i}</math> [1]

	Where		Where
	~~h_e 23 \frac{W}{(m<sup>2</sup>K)}~~
	~~h_i 8 \frac{W}{(m<sup>2</sup>K)} – for borosilicate- und soda-lime-glass~~
	~~\alpha_esolar absorptance~~

	(h_e and h_i are mean values with arranged conditions)		<math>h_e</math> 23 W/(m<sup>2</sup>K)

			<math>h_i</math> 8 W/(m<sup>2</sup>K) – for borosilicate- und soda-lime-glass

			<math>\alpha_e</math> solar absorptance

			(<math>h_e</math> and <math>h_i</math> are mean values with arranged conditions)


	g-values are dimensionless and between 0 and 1		g-values are dimensionless and between 0 and 1


	[1] DIN EN 410:1998 Glas im Bauwesen, Bestimmung der lichttechnischen und strahlungsphysikalischen Kenngrößen von Verglasungen		[1] DIN EN 410:1998 Glas im Bauwesen, Bestimmung der lichttechnischen und strahlungsphysikalischen Kenngrößen von Verglasungen

AntretterF am 30. Juni 2009 um 12:41 Uhr

2009-06-30T12:41:55Z

← Nächstältere Version		Version vom 30. Juni 2009, 14:41 Uhr
Zeile 16:		Zeile 16:
	===g-Value===		===g-Value===


			[[Plus:Test]]
	The g-value is a value for the pass of energy through a transparent component.		The g-value is a value for the pass of energy through a transparent component.
	It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.		It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.

Tes am 30. Juni 2009 um 12:34 Uhr

2009-06-30T12:34:53Z

← Nächstältere Version		Version vom 30. Juni 2009, 14:34 Uhr
Zeile 13:		Zeile 13:
	[[http://resourcecenter.pnl.gov/cocoon/morf/ResourceCenter/article//93]]		[[http://resourcecenter.pnl.gov/cocoon/morf/ResourceCenter/article//93]]
	''ASHRAE Handbook 2005 Fundamentals''		''ASHRAE Handbook 2005 Fundamentals''

			===g-Value===

			The g-value is a value for the pass of energy through a transparent component.
			It is composed of direct solar radiation and heat emission by secondary absorptance to the inner space.

			:<math>g = \tau_e + q_i [1]</math>

			The radiation power \phi_e through the component can be separated as following:

			transmitted part \tau_e \phi_e direct transmittance \tau_e
			<br />reflected part \rho_e\phi_e direct reflectance \rho_e
			<br />absorbed part \alpha_e \phi_e direct absorptance \alpha_e [1]

			Where

			:<math>\tau_e + \rho_e + \alpha_e = 1</math> [1]

			For the calculation of the g-value are the direct transmittance \tau_e and the direct absorption \alpha_e needed. From the \alpha_e only the inward flowing fraction of the energy, the secondary absorptance q_i is relevant.

			Direct transmittance \tau_e
			:<math>\tau_e = \frac{\sum S_y \tau(\lamda) \Delta\lamda}{\sum S_y \Delta\lamda}</math> [1]

			Where
			S_y spectral distribution of solar radiation
			\tau(\lamda) spectral transmittance of the glazing
			\Delta\lamda range of wavelength

			Inward flowing fraction of energy q_i:

			single glazing fenestration

			:<math>q_i = frac{\alpha_e h_i}{h_e + h_i}</math> [1]

			Where
			h_e 23 \frac{W}{(m<sup>2</sup>K)}
			h_i 8 \frac{W}{(m<sup>2</sup>K)} – for borosilicate- und soda-lime-glass
			\alpha_esolar absorptance

			(h_e and h_i are mean values with arranged conditions)

			g-values are dimensionless and between 0 and 1

			[1] DIN EN 410:1998 Glas im Bauwesen, Bestimmung der lichttechnischen und strahlungsphysikalischen Kenngrößen von Verglasungen