Power Tower

2 posts / 0 new
Last post
taqy25100
Number of heliostat field in solar tower

Hi Paul, I hope you are doing well.
Thank you very much for your support and for spending time to answer to members' questions.
I'm trying to simulate a solar tower power plant with different sizes. My issue is that even I try to change the plant design including design turbine gross output and/or solar multiple, but the number of heliostats in the solar field or even the reflective area don't change, both in version 2014.1.14 and 2017.9.5. Is there any option to fix this issue without passing through the optimization?
Thanks in advance.

2 posts / 0 new
Last post
FrankNam
FrankNam's picture
Cooling tower water use results_reply

Hi Paul

Thanks for the support.

From the Equation 3.25 of the Physical Trough Reference Manual, could you please indicate which value is being reported in the time-series results of SAM as "Hourly Data: Cycle cooling water mass flow rate - makeup (kg/hr)",i.e. is it mdotwater or mdotcw?:
mdotevap = qdotrej/hevap
mdotdrift = fdrift mdotcw
mdotctbd = fctbd mdotcw
mdotwater = mdotevap +mdotdrift +mdotctbd

2 posts / 0 new
Last post
h.johnson
Thermal load?

Hello!

I'm starting a project to analyze different methods of solar water/HTF heating to power an Organic Rankine Cycle for power generation with TES. After experimenting with some models already (CSP, IPH, and solar water heating), I was wondering what would be the best method to simulate variable electrical and thermal load requirements or if this would not be possible?

Thanks

2 posts / 0 new
Last post
FrankNam
FrankNam's picture
Cooling tower water use results

Good day SAM team

2 posts / 0 new
Last post
Rocio1819
Design Point

I only want to know what means "design point" or what refers it? I have an idea but I don't understand exactly I know what DNI means but not "design point"?

2 posts / 0 new
Last post
RaquelRAG1
Solar Power molten salts, fixed number of heliostats

Hi!

I'm student from Spain and I'm working on my degree final project.
I used SAM to simulate a certain CSP parabolic through plant and now I have to explore the feasibility of other CSP technologies based on data of the inicial plant.

What I need to do now is to compare the results (LCOE, anual production, capacity factor, etc...) obtained for a Power Tower molten salts plant, when the reflective area is constant and fixed, and equal to the one in the original csp through parabolic plant.

1 post / 0 new
weipin
Cosine effect

Dear,

Solar pilot shows the cosine loss of each heliostat, I would like to know the calculation methodology.

I have referred to Wagner, M. (M.S. 2008). Simulation and Predictive Performance Modeling of Utility-Scale Central Receiver System Power Plants. University of Wisconsin-Madison.Is it the correct reference ?

Any documentation for solar pilot?

In the layout results in solar pilot , what mean by tracking vector?

Thank you

2 posts / 0 new
Last post
weipin
Incident angle for each heliostat

Hi , support team,

I would like to find an equation to calculate the incident angle hourly of each heliostat .I referred to https://github.com/NREL/ssc/blob/develop/ssc/cmod_tcsmolten_salt.cpp and https://github.com/NREL/ssc/blob/develop/ssc/cmod_solarpilot.cpp but I could not find any solution .

1 post / 0 new
weipin
Field Optical efficiency

Hi,

Is "field optical efficiency" in SAM equivalent to "Optical efficiency incl. receiver" in solar pilot ?

If not, what are the losses included in the field optical efficiency?What is the product?

Thank you

Best Regard,

Wei Pin

2 posts / 0 new
Last post
ahmadmumtaz
Flat-Plate solar tower receiver

Hello,
The default receiver setting for direct power tower plants is for cylindrical receivers. Is there any way to simulate a flat-plate external receiver? (similar to one in Ivanpah solar, also known as the bill-board type external receiver).

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer