@All, I did some fact ...

@All, I did some fact checking and found some things that are quite interesting. The water temperature in the Gulf of Suez can reach 50 Celsius. With 26 inches of vacuum, it would be close to it's boiling point. And with a minimum of 700 watts/hr March through October in Cairo, that would be enough solar energy to raise the temperature of about 1,500 liters 1 degree Celsius in one hour. With a surface area of 100 square meters, that would be 150,000 liters per hour. And this would not include the greenhouse effect. Still, 750,000 liters a day would be a start. This last figure could be the peak output during summer. One thing a concept like this would consider is that water would flow over a flat reflective panel. This should create an increase of thermal energy in the space that the water would occupy.