Hello,
To set up the physical trough model for a thermal application instead of for electricity generation, you can avoid dumped heat by making the solar field size relative to the power block capacity smaller than it would be for an electricity generation application. You can do that by using a smaller solar multiple.
For example, if you start from the default physical trough case, set the thermal storage capacity to zero (full load hours of TES = 0), and use a solar multiple of 0.9, the collectors never defocus and the dumped heat is zero. On the time series graph, you can plot the thermal output from the field and the field outlet temperature to see the energy available for the application.
Best regards,
Paul.