Process heat linear direct steam

Hi
When I try to simulate various combinations of solar multiple and steam quality for a process heat linear direct steam project - LCOE financial model, lots of errors occur such as:

"C_csp_lf_dsg_collector::on(...) COMPONENT defocus failed to converge
Simulation linear_fresnel_dsg_iph failed.
SSC requires input 'annual_electricity_consumption', but was not found in the SAM UI or from previous simulations
Simulation iph_to_lcoefcr failed.
SSC requires input 'annual_energy', but was not found in the SAM UI or from previous simulations
Simulation lcoefcr failed."

I can not perform a parametric study or a sensitive analysis because the simulation is successful for some combination and it fails for others.

Is there any suggestion to fix this problem?

I tried to change the system design such as " heat sink inlet pressure, design DNI and so on, however the problem appears for other combinations and at different locations.

Thanks

Dear Osama,

You will have to investigate the combinations that cause the simulation error to see if you can determine the cause. From your description, I think there are some combinations of solar multiple and steam quality that are not viable. For example, perhaps for a small solar multiple and high steam quality, the field cannot supply sufficient heat to maintain the target steam quality. You should remove the combinations that are not viable from your analysis.

Best regards,
Paul.