Parabolic Trough

3 posts / 0 new
Last post
burakomersaracoglu
burakomersaracoglu's picture
SAM Virtual Conference 2017 Call Date

Dear Paul and SAM NREL specialists;

My coauthors and I finalized some modelling works and sections of our research studies (SEGS VI, SEGS IX, Topaz, Solar Star).

4 posts / 0 new
Last post
Ammar Osman
Could not get Weather data of Sudan

Hi ..
it is my first time to launch SAM 2017 , and i could not find my country weather file " Sudan ". I searched through the internet and i read SAM help and support pages and nothing worked !
Help please

2 posts / 0 new
Last post
a.alexandrou
Greece Trough new eneter data

Dear NREL,

can you please inform me inform me if I can add a Parabolic trough collector to the system library of SAM.

Best Regards

Athanasios Alexandrou
Mechanical Engineer

Parvolen CSP Technologies

Iroon Politexneiou 70
41223 Larissa
Tel.: +302410669092
internet:www.parvolen.com

1 post / 0 new
cspchathu
fresnel exceed maximum iteration of 100

Hello,
in the notice tab, i received several notices like "fresnel exceed maximum iteration of 100, at time 25290000.000000". My question is that will it be a big impact on my final results? & how can I eliminate that kind of notices?

1 post / 0 new
burakomersaracoglu
burakomersaracoglu's picture
Modeling SEGS VI by physical trough model

Dear SAM developers, experts and users;

This question is related with one of our studies like the one on https://sam.nrel.gov/content/modeling-segs-empirical-model-sam-2016314

2 posts / 0 new
Last post
cspchathu
Boiler operating pressure

hello,
At high pressures, system can reach to high temperatures. But, as per my parametric analysis, at low boiler operating pressures, LCOE has low values.
are there any limitation for boiler operating pressure based on the performance?

2 posts / 0 new
Last post
Kamran
installed cost

Dear Paul

The simulation output with SAM (version: 2016.3.14) is:
Installed cost for 20 and 100 MW Parabolic Trough Power Plants with 6 hours
thermal storage and solar multiple of 2 is as follow:
20 MW : 7210 $/kW
100 MW : 7253 $/kW
But as usual, the installed cost is decreased with increasing the power plant
capacity.
How this trend could be observed in the output of SAM simulations?

Regards

1 post / 0 new
burakomersaracoglu
burakomersaracoglu's picture
Possible Bug On Allow Partial Defocusing

Dear SAM users;
I have been working on a research study for a while.
My studies and related questions can be found on this support forum.
I have some problems with my physical trough models.
I try to understand the causes of the problems to solve and fix them properly.
One of them is a run time problem, I think.
When I deselect the "Allow Partial Defocusing" check box and run the simulation, SAM stops at 99,7% and shuts down or quits automatically.

4 posts / 0 new
Last post
pkulbeik
HX Approach Temp

The Help screen mentions that if you are using the same HTF for the solar field and storage, then to set the HX approach temperatures on the storage page to 0 (zero).

I'm using SAM 2016.3.14 with solar salt on both sides and the HX approach temperatures are grayed out fields on the Storage page. I've attached a screen shot of the storage page. How do I change these?

The same problem occurs using User-defined HTF in both places.

Thanks,
Pam

2 posts / 0 new
Last post
cspchathu
Number of SCA/HCE assemblies

Hello,
for number of SCAs of 8, 10, 12,14, 16, 18, 20, 22, and 24, the PPA prices respectively 53.22, 49.23, 47.48, 45.62, 45.7, 44.4, 44.03, 43.61,43.1. If we neglect the PPA price for 16 number of SCAs (45.7), remaining data shows a pattern. that is, when number of SCAs increase, PPA prices decrease. Is that correct?
Why the PPA price related to 16 shows a value which somewhat differs from the pattern of other values ?
Thank you,

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer