One-liter jar of water heated to 70oC is standing on the table in your kitchen. Is it a typical everyday situation? Agree. But I want to tell you about this jar something that could be proved by a teacher of Physics in any secondary school.

One liter of water will be cooling from 70 to 25 oC at your kitchen table for about 40 minutes. In this process cooling water will emit about 180 000 Joules of energy appearing in the form of heat into the area of your kitchen for these forty minutes. If we convert this thermal appearance of the energy emitting from the jar into electrical appearance of the same energy, it will be enough for electrical bulb with power of 70W to be alight for the same forty minutes. Approximately the same amount of energy is emitted into the environment while cooling three liters of water from 15 to 0 oC.

Suggested LPTE-converter takes this low-potential thermal energy from water with very high efficiency factor which is about 95% and converts it into electric energy. Those are the wonders applied science offers us in the XXI century…