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Siamak,<br>
The algorithms for getting hourly solar from a single monthly number
can sometimes give you this error, particularly at the hours when the
sun is rising and setting. Getting the error at 400 timesteps during
the year is not a guarantee that there is anything wrong but it is more
frequent than normal. The two most common errors are in setting two of
the parameters for Type16. Make sure that you have the Type16 parameter
for the day of the simulation start correct and make sure that you have
your shift between solar and local times correct. The shift should be
specified for the weather data location, not for the actual solar
collector location (if those two are different).<br>
Kind regards,<br>
David<br>
<br>
<br>
siamak khorrami wrote:
<blockquote
cite="mid:c851bd971002262322m6239b33dv203e4e452f786d30@mail.gmail.com"
type="cite">
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<div>
<div class="h5">Dear Friends,<br>
<div class="gmail_quote">I have simulated the calculation of solar
radiation by type54c (weather Generator: Default Random Number Seeds)
and type16i (Solar Radiation Processor: Total Horizontal and Diffuse
Horizontal Known) and connected the outputs of them to the collector.
when I run the simulation I face these errors:<br>
<br clear="all">
<span style="font-size: 14pt; font-family: "Times New Roman","serif";">"The
calculated value of the beam radiation
exceeded the maximum possible beam radiation from this step. The beam
radiation
has been set to the extraterrestrial radiation for this time step</span>"<br>
<br>
and <br>
<br>
<br>
<br>
<br>
<b>"The
beam radiation exceeded the extraterrestrial radiation for 400 time
steps during
the simulation "</b><br>
<br>
<br>
Would someone please guide me what I should do to avoid this problem?<br>
<br>
<br>
Sincerely,<br>
<font color="#888888">Siamak Khorrami
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</p>
<br>
</font></div>
<br>
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<br>
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<br>
<br>
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