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Re: [EnergyPlus_Support] RE: roof





Your surfaces are automatically assigned values for orientations based on the vertices that make up the surface. 

To see how different orientations are varied by using outputs such as those pasted below. 

Zone,Sum,Zone Opaque Surface Inside Faces Total Conduction Heat Gain Energy [J]
Zone,Sum,Zone Opaque Surface Inside Faces Total Conduction Heat Loss Energy [J]
Zone,Average,Surface Outside Face Sunlit Area [m2]
Zone,Average,Surface Outside Face Sunlit Fraction []
Zone,Average,Surface Outside Face Incident Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Incident Beam Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Incident Sky Diffuse Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Incident Ground Diffuse Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Beam Solar Incident Angle Cosine Value []
Zone,Average,Surface Outside Face Incident Sky Diffuse Ground Reflected Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Incident Sky Diffuse Surface Reflected Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Incident Beam To Beam Surface Reflected Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Incident Beam To Diffuse Surface Reflected Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Outside Face Incident Beam To Diffuse Ground Reflected Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Anisotropic Sky Multiplier []
Zone,Average,Surface Window BSDF Beam Direction Number []
Zone,Average,Surface Window BSDF Beam Theta Angle [rad]
Zone,Average,Surface Window BSDF Beam Phi Angle [rad]
Zone,Average,Surface Window Total Glazing Layers Absorbed Solar Radiation Rate [W]
Zone,Average,Surface Window Total Glazing Layers Absorbed Shortwave Radiation Rate [W]
Zone,Average,Surface Window Total Absorbed Shortwave Radiation Rate Layer 1 [W]
Zone,Average,Surface Window Front Face Temperature Layer 1 [C]
Zone,Average,Surface Window Back Face Temperature Layer 1 [C]
Zone,Average,Surface Window Transmitted Solar Radiation Rate [W]
Zone,Average,Surface Window Transmitted Beam Solar Radiation Rate [W]
Zone,Average,Surface Window Transmitted Beam To Beam Solar Radiation Rate [W]
Zone,Average,Surface Window Transmitted Beam To Diffuse Solar Radiation Rate [W]
Zone,Average,Surface Window Transmitted Diffuse Solar Radiation Rate [W]
Zone,Average,Surface Window Heat Gain Rate [W]
Zone,Average,Surface Window Heat Loss Rate [W]
Zone,Average,Surface Window Gap Convective Heat Transfer Rate [W]
Zone,Average,Surface Window Shading Device Absorbed Solar Radiation Rate [W]
Zone,Average,Surface Window Inside Face Glazing Zone Convection Heat Gain Rate [W]
Zone,Average,Surface Window Inside Face Glazing Net Infrared Heat Transfer Rate [W]
Zone,Average,Surface Window Shortwave from Zone Back Out Window Heat Transfer Rate [W]
Zone,Average,Surface Window Inside Face Frame and Divider Zone Heat Gain Rate [W]
Zone,Average,Surface Window Inside Face Gap between Shade and Glazing Zone Convection Heat Gain Rate [W]
Zone,Average,Surface Window Inside Face Shade Zone Convection Heat Gain Rate [W]
Zone,Average,Surface Window Inside Face Shade Net Infrared Heat Transfer Rate [W]
Zone,Sum,Surface Window Total Glazing Layers Absorbed Solar Radiation Energy [J]
Zone,Sum,Surface Window Transmitted Solar Radiation Energy [J]
Zone,Sum,Surface Window Transmitted Beam Solar Radiation Energy [J]
Zone,Sum,Surface Window Transmitted Beam To Beam Solar Radiation Energy [J]
Zone,Sum,Surface Window Transmitted Beam To Diffuse Solar Radiation Energy [J]
Zone,Sum,Surface Window Transmitted Diffuse Solar Radiation Energy [J]
Zone,Sum,Surface Window Heat Gain Energy [J]
Zone,Sum,Surface Window Heat Loss Energy [J]
Zone,Sum,Surface Window Gap Convective Heat Transfer Energy [J]
Zone,Sum,Surface Window Shading Device Absorbed Solar Radiation Energy [J]
Zone,Average,Surface Window System Solar Transmittance []
Zone,Average,Surface Window System Solar Reflectance []
Zone,Average,Surface Window System Solar Absorptance []
Zone,Average,Surface Window Inside Face Glazing Condensation Status []
Zone,Average,Surface Window Inside Face Frame Condensation Status []
Zone,Average,Surface Window Inside Face Divider Condensation Status []
Zone,Average,Surface Window Outside Reveal Reflected Beam Solar Radiation Rate [W]
Zone,Sum,Surface Window Outside Reveal Reflected Beam Solar Radiation Energy [J]
Zone,Average,Surface Window Solar Horizontal Profile Angle [deg]
Zone,Average,Surface Window Solar Vertical Profile Angle [deg]
Zone,Average,Surface Window Glazing Beam to Beam Solar Transmittance []
Zone,Average,Surface Window Glazing Beam to Diffuse Solar Transmittance []
Zone,Average,Surface Window Glazing Diffuse to Diffuse Solar Transmittance []
Zone,Average,Surface Window Model Solver Iteration Count []
Zone,Average,Surface Inside Face Exterior Windows Incident Beam Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Inside Face Exterior Windows Incident Beam Solar Radiation Rate [W]
Zone,Average,Surface Inside Face Interior Windows Incident Beam Solar Radiation Rate per Area [W/m2]
Zone,Average,Surface Inside Face Interior Windows Incident Beam Solar Radiation Rate [W]
Zone,Average,Surface Inside Face Initial Transmitted Diffuse Absorbed Solar Radiation Rate [W]
Zone,Average,Surface Inside Face Initial Transmitted Diffuse Transmitted Out Window Solar Radiation Rate [W]
Zone,Average,Surface Inside Face Absorbed Shortwave Radiation Rate [W]
Zone,Sum,Surface Inside Face Exterior Windows Incident Beam Solar Radiation Energy [J]
Zone,Sum,Surface Inside Face Interior Windows Incident Beam Solar Radiation Energy [J]
Zone,Average,Debug Surface Solar Shading Model DifShdgRatioIsoSky []
Zone,Average,Debug Surface Solar Shading Model DifShdgRatioHoriz []
Zone,Average,Debug Surface Solar Shading Model WithShdgIsoSky []
Zone,Average,Debug Surface Solar Shading Model WoShdgIsoSky []
Zone,Average,Surface Inside Face Temperature [C]
Zone,Average,Surface Outside Face Temperature [C]
Zone,Average,Surface Inside Face Adjacent Air Temperature [C]
Zone,Average,Surface Inside Face Convection Heat Transfer Coefficient [W/m2-K]
Zone,Average,Surface Inside Face Convection Heat Gain Rate [W]
Zone,Average,Surface Inside Face Convection Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Inside Face Convection Heat Gain Energy [J]
Zone,Average,Surface Inside Face Net Surface Thermal Radiation Heat Gain Rate [W]
Zone,Average,Surface Inside Face Net Surface Thermal Radiation Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Inside Face Net Surface Thermal Radiation Heat Gain Energy [J]
Zone,Average,Surface Inside Face Solar Radiation Heat Gain Rate [W]
Zone,Average,Surface Inside Face Solar Radiation Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Inside Face Solar Radiation Heat Gain Energy [J]
Zone,Average,Surface Inside Face Lights Radiation Heat Gain Rate [W]
Zone,Average,Surface Inside Face Lights Radiation Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Inside Face Lights Radiation Heat Gain Energy [J]
Zone,Average,Surface Inside Face Internal Gains Radiation Heat Gain Rate [W]
Zone,Average,Surface Inside Face Internal Gains Radiation Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Inside Face Internal Gains Radiation Heat Gain Energy [J]
Zone,Average,Surface Inside Face System Radiation Heat Gain Rate [W]
Zone,Average,Surface Inside Face System Radiation Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Inside Face System Radiation Heat Gain Energy [J]
Zone,Average,Surface Outside Face Outdoor Air Drybulb Temperature [C]
Zone,Average,Surface Outside Face Outdoor Air Wetbulb Temperature [C]
Zone,Average,Surface Outside Face Outdoor Air Wind Speed [m/s]
Zone,Average,Surface Outside Face Convection Heat Gain Rate [W]
Zone,Average,Surface Outside Face Convection Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Outside Face Convection Heat Gain Energy [J]
Zone,Average,Surface Outside Face Convection Heat Transfer Coefficient [W/m2-K]
Zone,Average,Surface Outside Face Net Thermal Radiation Heat Gain Rate [W]
Zone,Average,Surface Outside Face Net Thermal Radiation Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Outside Face Net Thermal Radiation Heat Gain Energy [J]
Zone,Average,Surface Outside Face Thermal Radiation to Air Heat Transfer Coefficient [W/m2-K]
Zone,Average,Surface Outside Face Thermal Radiation to Sky Heat Transfer Coefficient [W/m2-K]
Zone,Average,Surface Outside Face Thermal Radiation to Ground Heat Transfer Coefficient [W/m2-K]
Zone,Average,Surface Outside Face Solar Radiation Heat Gain Rate [W]
Zone,Average,Surface Outside Face Solar Radiation Heat Gain Rate per Area [W/m2]
Zone,Sum,Surface Outside Face Solar Radiation Heat Gain Energy [J]
Zone,Average,Surface Inside Face Conduction Heat Transfer Rate [W]
Zone,Average,Surface Inside Face Conduction Heat Gain Rate [W]
Zone,Average,Surface Inside Face Conduction Heat Loss Rate [W]
Zone,Average,Surface Inside Face Conduction Heat Transfer Rate per Area [W/m2]
Zone,Sum,Surface Inside Face Conduction Heat Transfer Energy [J]
Zone,Average,Surface Outside Face Conduction Heat Transfer Rate [W]
Zone,Average,Surface Outside Face Conduction Heat Gain Rate [W]
Zone,Average,Surface Outside Face Conduction Heat Loss Rate [W]
Zone,Average,Surface Outside Face Conduction Heat Transfer Rate per Area [W/m2]
Zone,Sum,Surface Outside Face Conduction Heat Transfer Energy [J]
Zone,Average,Surface Average Face Conduction Heat Transfer Rate [W]
Zone,Average,Surface Average Face Conduction Heat Gain Rate [W]
Zone,Average,Surface Average Face Conduction Heat Loss Rate [W]
Zone,Average,Surface Average Face Conduction Heat Transfer Rate per Area [W/m2]
Zone,Sum,Surface Average Face Conduction Heat Transfer Energy [J]
Zone,Average,Surface Heat Storage Rate [W]
Zone,Average,Surface Heat Storage Gain Rate [W]
Zone,Average,Surface Heat Storage Loss Rate [W]
Zone,Average,Surface Heat Storage Rate per Area [W/m2]
Zone,Sum,Surface Heat Storage Energy [J]
Zone,Average,Surface Inside Face Beam Solar Radiation Heat Gain Rate [W] 



Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions
120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951
  





On Sat, Sep 21, 2013 at 10:30 AM, <minakarami2006@xxxxxxxxx> wrote:
 

Thank you so much for your reply. Is there any specific method to create four surfaces? I mean if I have a tilted roof in my IDF file, it automatically considers four surfaces for it or I need to define each surface? 



--- In energyplus_support@xxxxxxxxxxxxxxx, <jeannieboef@...> wrote:

?if you define 4 surfaces, you can get 4 temperature out.


On 20 September 2013 22:58, <minakarami2006@...> wrote:
 

I have a question about the tilted roof. Assume that I have a one story house with attic. I wanted to know whether EnergyPlus calculate the solar radiation on each surface of the roof (i.e. north, south, west, and east) or it considers it as a horizontal surface?





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