I'm currently researching some mechanisms for a simulation game, which also covers several electrical power plant options. As part of this, I'm currently looking at a solar thermal power plant, which in the first phase is meant to use thermal oil for heat transfer and storage. Unfortunately I cannot find details on which exact thermal oils are usable in such a plant and how they are produced. I found that there are several options:
- Mineral oil based
- Synthetic silicon based
I checked several power plant pages, but they never go into that detail. So I'm looking for the kind of thermal oil that can be used in this context, the chemical composition and where/how it can be produced, so I can model a rough production chain. Also it would be nice to know if that oil has to be exchanged frequently or if it can stay inside the closed cycle for a long time.
Thanks in advance