Total Required Aperture vs Total Aperture Reflective Area (CSP)

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Bernardo Almeida
Topic Author

30 May 2022 14:53 #11013 by Bernardo Almeida

Total Required Aperture vs Total Aperture Reflective Area (CSP) was created by Bernardo Almeida

Hello.
I'm modelling a CSP plant and I have some doubts related with solar field area.
Total Required Aperture Area is calculated based on DNI Design, Cycle Thermal Power and Total Loop Conversion Efficiency, that is, with the inputs that we chose.
Total Aperture Reflective Area is calculated based on Single Loop Aperture, based on Collector specifications, and the actual number of loops.
What we need to do is to try to equal this two values?

Thank you!

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Paul Gilman

01 Jun 2022 23:55 #11037 by Paul Gilman

Replied by Paul Gilman on topic Total Required Aperture vs Total Aperture Reflective Area (CSP)

Hi Bernardo,

The "Total required aperture, SM=1" is a design value. When SAM calculates the "Total aperture reflective area," it accounts for the constraints imposed by the collector dimensions and number of collectors in the loop so the "actual" value may be different from the "required" value.

Best regards,
Paul.

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Bernardo Almeida
Topic Author

02 Jun 2022 09:45 #11042 by Bernardo Almeida

Replied by Bernardo Almeida on topic Total Required Aperture vs Total Aperture Reflective Area (CSP)

Hi Paul.

It is different, but for example, if I'm modeling a solar field with SM=1 , the values of "Total required aperture" and "Total aperture reflective area" should be similar?
We define "Total Aperture Reflective Area" with the type of collector and number of assemblies in the loop and it gives a value fully arbitrated...
Are there any imposition that we can use to define that?

Best regards,
Bernardo.
fully arbitratedfully arbitrated

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Paul Gilman

02 Jun 2022 18:23 #11053 by Paul Gilman

Replied by Paul Gilman on topic Total Required Aperture vs Total Aperture Reflective Area (CSP)

Hi Bernardo,

There may be a slight difference between these values, depending on the collector dimensions from the Collectors (SCAs) page.

The description in the Solar Field Help topic may be helpful:

samrepo.nrelcloud.org/help/troughphysical_solar_field.htm

Best regards,
Paul.

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