Parabolic trough freeze protection

Paul Gilman
Platinum Member

13 Nov 2012 16:56 #220 by Paul Gilman

Replied by Paul Gilman on topic Parabolic trough freeze protection

It is possible to specify a fossil fill dispatch schedule that results in the energy to the power block being greater than the energy from the solar field over a year. The extra energy comes from natural gas burned by the backup boiler.

Best regards,
Paul.

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vp16
Junior Member

14 Nov 2012 13:26 #221 by vp16

Replied by vp16 on topic Parabolic trough freeze protection

Its a system with no auxiliary back up boiler.
Also, the heat loss diagram are for the first year of operation. Correct.?

Basically, with a solar multiple of 2.5, MS PT plant, with no auxiliary boiler, it shows The Energy to the Power Block more compared to the Energy Output from Solar field. This is soemthing which I am not able to understand the logic. And the same system with a solar multiple of 3.5 has energy from power block less than energy output from the solar field.

Is it some kind of bug.? or is this justified.?

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Paul Gilman
Platinum Member

14 Nov 2012 16:48 #222 by Paul Gilman

Replied by Paul Gilman on topic Parabolic trough freeze protection

I can't be sure what is causing that without seeing your file. Would you mind attaching it to a reply? We have fixed a few issues with the energy loss diagram in the Beta version.

Best regards,
Paul.

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