Power Tower

1 post / 0 new
solargary
Sub-hourly weather data: Profiles do not match

Dear SAM team:

I am using a 10-minute resolution weather file (attached) in the SAM csv-file format with the power tower module.
Using "View Data" in the "Location and Resource" tab shows daily DNI curves (after zooming in) as expected, i.e. maximum values of DNI around noon.

When using the "Profile" tab of the data viewer, some months show DNI profiles with max. DNI at night and no DNI around noon (see attached screenshots).

Not quite surprisingly, simulation results are not plausible using this file.

2 posts / 0 new
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FernandoK
Flow Rate

I am modeling a power tower with molten salt. How can i know the flow rate of de HTF at the receiver for the design point ?

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Javier Rodriguez
air pressurized solar tower

Hi
I want to simulate an air pressurized solar tower. On HTF custom, I would like to know what is the reference in the enthapy

Thanks

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Luca S
atmospheric attenuation: hourly input with macros?

The aerosol concentration in the air and thereby the atmospheric attenuation between heliostats and receiver varies over the time. It would be great to be able to simulate the annual yield of a power tower plant with hourly or at least daily values for the aerosol concentration. As far as I understand this possibility is not yet implemented in SAM. So before diving really deep into the macro scripting (which I did not use until now) my question is as follows:

2 posts / 0 new
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Monteleone91
Can I have in solarpilot the energy produced in a year?

Can I have in solarpilot the energy produced in a year?
Best regards

2 posts / 0 new
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Monteleone91
System summary in solarpilot

I want to know in detail what it refers to the value of cost / energy metric present in System summary of Solarpilot model. In the help don't have information.
Best regards.

1 post / 0 new
Paul Gilman
Power Tower Wind Speed Deflection

We are estimating generation for a molten salt tower, and we have not seen how the wind speed of a given hour is used to model optical losses. There is a section for stow wind speed, but there do not seem to be anything that accounts for:

3 posts / 0 new
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joaoguedes
Turbine Output Fraction

I'm accessing SAM 2016 > CSP Power Tower Molten Salt > PPA Single Owner Utility > System Control > Dispatch Control.

SAM allows me to set the 9 periods of the Turbine Output Fraction per weekday and weekend schedule based on hours of day per month.

I would like to follow a similar procedure, but setting different periods per hour per day within a month. For instance, instead of having "Period 1" at "8 am" on all the days of January, to have "Period 1" at "8 am" on the days 2 and 3 of January, while having "Period 2" at "8 am" on 4 and 7 of January.

5 posts / 0 new
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Monteleone91
Solar matrix en SOLARPILOT

I would like to know if it's possible to extract the solar matrix from the results of a simulation of the solarpilot programme?

1 post / 0 new
jesus.polo@ciemat.es
sub-hourly meteo in solar tower model

I'm trying to run sub-hourly simulations (10-minute, 15-minute) for several CSP plant models; I make it only in parabolic trough, but for linear Fresnel and solar tower (direct steam and molten salt) the results are shown only in hourly basis. However, the results in hourly values are different when I used 10 min or 15 min or 60 min data, so I guess it is taking the first 8760 values of the weather sub-hourly file and the calculation is wrong, is this possible?

Thanks a lot for the support and help

Jesus

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