Devices, systems, and methods for generating power

An energy conversion system, comprising:

• a plurality of devices to generate power, any one of the devices comprises:
• a first chamber containing a working fluid and a first space inside the first chamber, the first space being above a portion of the working fluid that is within the first chamber;
• a second chamber coupled with the first chamber, the working fluid flowable between the first chamber and the second chamber via a flow passage between the first and second chambers, the second chamber containing a second space inside the second chamber, the second space being above a portion of the working fluid that is within the second chamber;
• at least one first spray device coupled with the first chamber to heat or cool the first space in the first chamber;
• and
• at least one second spray device coupled with the second chamber to heat or cool the second space in the second chamber, wherein at least one of the heating and cooling of the first space causes at least one of a compression or expansion force of the second space, and the at least one of a compression or expansion force of the second space drives a power-extraction unit coupled with the second chamber by gas outputted from the second space to the power-extraction unit.

A method for generating power, comprising:

• providing at least one of a liquid, air, and mist having a temperature higher than a current temperature of a first space in a first chamber to heat gas in the first space, the first space being above a portion of a working fluid that is within the first chamber;
• providing at least one of a liquid, air, and mist having a temperature lower than the current temperature of the first space to cool gas in the first space;
• and
• driving a power-extraction unit coupled with a second chamber, by gas outputted from a second space of the second chamber to the power-extraction unit, by at least one of a compression or expansion force of the second space, the second space being above a portion of the working fluid that is within the second chamber, wherein the second chamber is coupled with the first chamber, the working fluid is flowable between the first chamber and the second chamber via a flow passage between the first chamber and the second chamber, and the compression or expansion force is caused by the heating or cooling of the first space.