Thermo-Electrochemical Redox Flow Battery for Continuous Conversion of Low-Grade Waste Heat to Power

Here we assess the route to convert low grade waste heat (<100°C) into electricity by leveraging the temperature dependency of redox potentials (Seebeck effect). We use fluid-based redox-active species, which can be easily heated and cooled using heat exchangers. By using a first principles approach, we designed a redox flow battery system with Fe(CN)63−/Fe(CN)64− and I−/I3− chemistry. We evaluate the continuous operation with one flow cell at high temperature and one at low temperature. We show that the most sensitive parameter, the Seebeck coefficient, can be controlled via the redox chemistry, the reaction quotient and solvent additives, and we present the highest Seebeck coefficient for this RFB chemistry. A power density of 0.6 W/m2 and stable operation for 2 hours are achieved experimentally. We predict high (close to Carnot) heat-to-power efficiencies if challenges in the heat recuperation and Ohmic resistance are overcome, and the Seebeck coefficient is further increased.

Single-step and double-step heath recuperation of waste water from thermal baths

Thermal baths in Slovakia are producers of wastewater, which hides considerable energy potential. The wastewater from the thermal pools has often exceeds the maximum permissible value of the temperature of the wastewater discharged into the water recipient. As a result, there is undesirable damage to the environment, which results in sanctions for the operators of these facilities. Our aim is to present the concept of a single- and double-step heat recuperation system of waste pool water using applications of various types of heat exchangers or heat pumps. The aim of this application is to ensure a suitable temperature to the discharged waste pool water, efficient use of the energy potential of the waste water and saving of primary energy in the form of geothermal water, thus extending the life of the entire system.

Design and Development of Light Weight Stirling Engine by using Compressor

From the nineteenth century, the mechanical transformation needs an incredible nuclear power creation. The pre-owned advances have a few specialized issues making hurt people and harming materials. There are numerous ways by which altering existing methods will assist with diminishing the uses. The work proposes the best approach to assemble and use the minimal expense Stirling motor for the efficient power energy application. A protected outside burning motor was the creation proposed by Robert Stirling to save human existence and materials. This motor is imagined for working with various temperatures without start inside by squander heat recuperation. It is worked by cyclic pressure and extension measure. The plan interaction includes the plan of chambers, heat expansion, dismissal, proficiency, power yield and some more. This motor is agreeable for individuals since it is very, less loud and minimized in size and alpha motor has more noteworthy proportion contrasted with different sorts. It is elective fuel hotspot for other fuel. This is efficient power energy application. This present’s development and execution trial of an alpha-type Stirling motor.

THE POSSIBILITY OF USING THE ENERGY POTENTIAL OF WASTE POOL WATER

Thermal baths in Slovakia are producers of wastewater, which hides considerable energy potential. The wastewater from the thermal pools has often exceeds the maximum permissible value of the temperature of the wastewater discharged into the water recipient. As a result, there is undesirable damage to the environment, which results in sanctions for the operators of these facilities. Our aim is to present the concept of a single- and double-step heat recuperation system of waste pool water using applications of various types of heat exchangers or heat pumps. The aim of this application is to ensure a suitable temperature to the discharged waste pool water, efficient use of the energy potential of the waste water and saving of primary energy in the form of geothermal water, thus extending the life of the entire system.