Are you referring to this project?
http://gesoan.com/CONTENIDOS.HTML
Those are solar cells, which generate electricity (although a couple photos look like solar absorption coolers).
My design uses heat to generate mechanical energy (like a car does) which directly powers the cooling device. There have been solar absorption coolers which use ammonia and water, but they don't perform as well as my vapor-compression system does (although it's purely theoretical at this point).
Probably the main market would be businesses with large buildings in the desert because with the manufacturing costs it might as well be a large device. Given that businesses like to save money on electricity, that's where it would most likely sell, assuming the manufacturing costs are not too high.
One of the main problems I'm having is that most people have not learned how to read temperature-entropy diagrams with phase changes and really understand what is happening (some mechanical engineering students just fake it and take the cookbook approach and only solve standardized problems
. Like the reason I have two lever systems instead of just one, somebody thought that didn't make sense. But I think more people can understand that when your wet bulb temperature is colder than the inside air temperature, then there is no theoretical limit for the coefficient of performance... So if it's 100F outside and low humidity.... And no moisture is put inside the building, only dry air.
I can't build this. It would cost too much, and I don't know how much clearance and precision the pistons should have and what kind of oil to use. I have thought about building a very simple version with no leverage-changing mechanism, just 2 pistons and 1 shaft. It wouldn't perform as well, but it would be cheap with less design issues of friction and lateral forces. The flap system and white box would be way cheaper than curved mirrors.
Overall, the solar absorption coolers might be less expensive for the same amount of heat transfer, but I don't know for sure because no experts will give me the time of day.