LAUSR

Abstract The paper focuses on the use of heat generated during a chemical reaction as an alternative source of environmental energy. Exothermic reaction heat in the presence of light chemical elements have been studied. The heat of these reactions is summed up by the heat of combustion of hydrogen. Therefore, the effectiveness of alternative energy sources increases significantly. Electrochemical and mixed (electrochemical + carbo-thermal) methods have been developed to restore the starting components from the reaction products. The energy efficiencies of the electrochemical and mixed methods were calculated giving (without using the heat of exothermic reaction heat) 47.4% and 74%, respectively, whereas using the heat of exothermic reactions, energy efficiency is 82% and 99%, respectively. In general, for 1 kg of magnesium in the five-step electrochemical process 21012 kJ of heat are released, 165 g of hydrogen and one cubic meter of oxygen are formed. The mixed method produces 247 g of hydrogen and 21065 kJ of heat.