RE: [EnergyPlus_Support] Re: How to find out the direct solar radiation falling into an internal surface

I think you are trying to enter the zone names directly in the Report Variable object, and used the incorrect format.

.RDD may have the followings in the regular format:
Zone,Average,Diffuse Solar [W/m2]
Zone,Average,Direct Solar [W/m2]

If you request the .rdd in IDF format, they would be as follows:
Output:Variable,*,Diffuse Solar,hourly; !- Zone Average [W/m2]
Output:Variable,*,Direct Solar,hourly; !- Zone Average [W/m2]

These can be pasted directed into the IDF. The disadvantage is that they will list the values for all the zones.

The warning message is:
"because IDF did not contain these elements or misspelled variable name -- check .rdd file"

Using the "*" as key, will solve the format problem. On the other hand, if the IDF did not
use these names or timestep, there will be the same warnings.

The following suggest that:

************* There are 4 unused schedules in input. And you can
************* Use Output:Diagnostics,DisplayUnusedSchedules; to see them.

You may ignore these warnings. if Bed_1 and Living Room results are not needed. Dr. Li

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: motabmx1@xxxxxxxxx
Date: Mon, 14 Nov 2011 01:53:06 +0000
Subject: [EnergyPlus_Support] Re: How to find out the direct solar radiation falling into an internal surface

Dear Dr Li,

do you know what I am doing wrong in this case? I am getting the following warning when I am asking to e+ to produce an output with the direct solr radiation. I have try a determinate surface and also a zone and i getting the same warning.

** Warning ** The following Report Variables were requested but not generated
** ~~~ ** because IDF did not contain these elements or misspelled variable name -- check .rdd file
************* Key=BED_1, VarName=DIRECT SOLAR, Frequency=Timestep
************* Key=BED_1, VarName=DIRECT SOLAR, Frequency=Timestep
************* Key=LIVING ROOM, VarName=DIRECT SOLAR, Frequency=Timestep
************* Key=LIVING ROOM, VarName=DIRECT SOLAR, Frequency=Timestep
************* There are 4 unused schedules in input.
************* Use Output:Diagnostics,DisplayUnusedSchedules; to see them.
************* EnergyPlus Warmup Error Summary. During Warmup: 0 Warning; 0 Severe Errors.
************* EnergyPlus Sizing Error Summary. During Sizing: 0 Warning; 0 Severe Errors.
************* EnergyPlus Completed Successfully-- 1 Warning; 0 Severe Errors; Elapsed Time=00hr 01min 34.64sec

thanks

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, YuanLu Li <yli006@...> wrote:
>
>
> At 10:30 June 21, the sun is almost over head. Depends on where you are and how the windows are shaded, the solar direct beam may not enter the window at all at that time. Solar angle altitude and azimuth are available as an output. The reference points for daylighting object provide the light intensity at the table or floow level.
>
> Dr. Li
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> From: motabmx1@...
> Date: Sun, 13 Nov 2011 23:38:23 +0000
> Subject: [EnergyPlus_Support] How to find out the direct solar radiation falling into an internal surface
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Dear e+ group
>
>
>
> I am intersted to know how much radiation is falling into the floor of a determinate zone,
>
>
>
> I have try using the follow output
>
>
>
> Beam Sol Intensity from Ext Windows on Inside of Surface
>
>
>
> but the values I am getting are very low and not what I was expected, as the day I am looking at is 21st june, and the room has large windows facing east and south. The output produce by energyplus is telling than less than 4.78E-03 w/m2 are falling into the floor at 10.30 when i was expected more radiation.
>
>
>
> Am I using the right output? anyone has an idea what i am doing wrong?
>
>
>
> thanks
>

__._,_.___

Primary EnergyPlus support is found at: http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx The primary EnergyPlus web site is found at: http://www.energyplus.gov The group web site is: http://groups.yahoo.com/group/EnergyPlus_Support/ Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files. EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.

Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe

__,_._,___