Power Tower

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y.ennassiri
Solar Tower Power Plant

Hi !

I'm modeling Solar Tower Power Plant (molten salt), and I would like to know if and how can I make the plant produce electricity during the night, and store it through Thermal Energy Storage (TES) for a period in the day ?

Kind regards

2 posts / 0 new
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alsagria1
difference between solar field and full load hours of storage

I have read the description in the help menu, but I still concern about my understanding

Can anyone describe it more clear?

"
Full load hours of storage, hours

The nominal thermal storage capacity expressed in hours at full load: The number of hours that the storage system can supply energy at the cycle's design point.

SAM displays the equivalent storage capacity in MWht on the System Costs page.

Solar field hours of storage, hours

The nominal thermal storage capacity expressed in hours of the solar field's design thermal power output.

4 posts / 0 new
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alsagria1
Hourly performance of my power cycle (sCO2 cycle)

Good morning.

I am modeling a solar power tower system to run a sCO2 cycle.

I would like to see how these temperatures (HTF outlet from the receiver) impact the hourly performance of my sco2 cycle?

I used two tank storage.

I attached an example of the (PC electrical power output: gross MWe, TES discharge thermal power MWt, and TES charge thermal power MWt)

My concern is that: at the time between 12 am to 7 am the PC output is ZERO! It should not be covered by the storage?

2 posts / 0 new
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alsagria1
Heliostat field graph

Good morning.

I have seen [Dr. Mike Wagner] youtube video explaining the molten salt solar tower model. He showed us a great Heliostat graph (see attachment)

I tried to get a graph like this in SAM but I couldn't.

Then I figured it out later that SOLARPILOT can do that!

Is there any way to couple SAM with SolarPolot?

4 posts / 0 new
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alsagria1
SAM code

Good morning.

I am modeling a CSP system, SAM tool is great. Is there anyway to generate the code?

I mean I want to see the code behind the SAM! it is based on TRNSYS (can I have TRNSYS file after I am done with SAM for further analysis?)

2 posts / 0 new
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alsagria1
different heat transfer fluid

Good afternoon

I only see CSP power tower using molten salt or steam as a HT. I need a higher temperature (700 C), is there any way to used air as a HT?

4 posts / 0 new
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Dhinesh.t
Optical Efficiency

Hi
I would like to know whether we can simulate cavity receiver in SAM/SolarPilot?
Also is it possible to extract the optical efficiency table as a function of azimuth/zenith (user defined angle step-Ex:5Deg) and flux map on the receiver?
Thank you

2 posts / 0 new
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ahmadmumtaz
solar flux distribution calculation

Hello,

I am new to SAM, in fact, it's my first day. My research is related to external solar power towers.I need to calculate "solar flux distribution" on a flat receiver surface (similar to Ivanpah tower). A heliostat arrangement similar to Ivanpah 1 power plant can be used. how can I obtain solar flux distribution using SAM?

4 posts / 0 new
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edwardsun20
Trouble getting model inputs for CSP

Hello NREL,

We tried to look at NREL API example code online for PV systems, and saw that there were only a few inputs that we need to feed the model. We tried running Python code for CSP power tower and power troughs, however, and found that we needed significantly more inputs to our system. Is it necessary for the CSP models to have so many more inputs, and if so, where could we find these values? Are there any notable researchers who have ran this model for solar thermal in the past?

Thanks!!

5 posts / 0 new
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Harry Han
15min output for power tower

Dear Paul

I have created a TMY file with 15min time step. I have imported it into a power tower model and the results show only hourly results. How can I output the 15min results?

Thank you!

Best regards!

Han

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