Atmospheric Transmittance

[Andrew Oldfield]

Hi everyone,

Does Tonatiuh calculate the impact of atmospheric attenuation from the mirrors to the receiver?

I apologise if this is written somewhere but I couldn't find it, and I don't want to double count this, even though it would have a small impact.

Regards,

Andrew

[Manuel J. Blanco]

Dear Andrew,

In Tonatiuh there is a specific option where you can define the "transmissivity model" you may want to consider. In those models which can be tailored by specifying the values of the model parameters, this option is provided. In the Bar Menu you can access the submenu to select and tailor the transmissivity model in the following path: Environment>Transmissivity>Define Transmissivity...

You can find a very brief explanation about the variables that you can set up in the Envirorment submenu in the following Tonatiuh wikipage: https://code.google.com/p/tonatiuh/wiki/TonatiuhSceneEnvironment

An explanation of the transmissivity models is provided in the Solar Energy article "Solar radiation attenuation in solar power plants" by Dr. Jesus Ballestrin. Details about the article can be found, for instance, in the following Dr. Ballestrin's webpage in Research Gate. Please, be aware that following the publication of this article some additional follow-up was also published in the Solar Energy journal.

I hope the above information is useful to you. Thanks for using Tonatiuh and for sharing your questions about the program in this forum.

Best regards,

Manuel