Heat exchanger steam condenser water distillation is described. In one aspect, a water distillation condenser has a heated air conduit in air flow communication with a heat exchanger. A cold raw water compartment is disposed above the heated air conduit and at least a bottom surface of the cold raw water compartment disposed at an angle. A heated raw water channel is defined between the heated air conduit and the raw water compartment. A floor of the heated raw water channel is defined by a top of the heated air conduit.

Systems and methods for solar steam generation are described. The systems and methods include moving at least one frame mounted optical focusing lens to track the sun in two axes and disposing a water boiler at a focus of each optical focusing lens. Raw water is pumped through an inlet at a bottom of each boiler and solar energy is concentrated, using each optical focusing lens, on each boiler, heating the raw water in each boiler and evaporating steam from the raw water. The steam exits each boiler, via a steam outlet pipe.

The present invention relates to a method for converting carbon dioxide into hydrocarbons by reacting magnesium with carbon dioxide to obtain magnesium oxide and carbon, reacting the carbon with hot water steam to obtain hydrogen (H2) and carbon monoxide, reacting hydrogen and carbon monoxide according to the Fischer-Tropsch method, or reacting the carbon obtained with earth alkaline metal oxide to obtain earth alkaline metal carbide and carbon monoxide, wherein the earth alkaline metal carbide is then reacted with water to obtain acetylene and earth alkaline metal hydroxide.

A modular two axis solar tracking system contemplates a first fixed base and a slidable/rotatable arm fixed to the first fixed base. The fixed base includes a primary linear actuator and a first movable element movable along a fixed axis. A second linear actuator is fixed at one end of the first movable element and an inverted J-shaped element is movable along a second axis that is perpendicular to the first axis. A second fixed base is disposed in an open area surrounded by an open area defined by a U-shaped lower portion of the inverted J-shaped element.