Zero-emission turbine on the basis of reversible monofuels as a tool for ecologically sound power engineering: Thermodynamic analysis of new flow diagram

• Published in: International journal of hydrogen energy 1997, Vol.22 (4), p.415-421
• Main Authors: Prokopiev, Serge I., Aristov, Yurii I., Parmon, Valentin N.
• Format: Article
• Language: English
• ISSN: 0360-3199; 1879-3487
• DOI: 10.1016/S0360-3199(97)85974-5

Reversible chemical reactions can be used for direct and efficient generation of mechanical work in environmentally clean gas turbines or other heat engines. In contrast to the conventional gas turbine cycle, the suggested scheme allows a regeneration of the fuel mixture via a reverse endothermic reaction and its reuse in a closed zero emission technological cycle. Despite decreasing the amount of moles in the gaseous fuel mixture in the course of the exothermic reaction, the overall thermodynamic efficiency can exceed 40–50%, thus being of practical interest. Moreover, no heat exchangers, which are usually believed to be inevitable components of thermochemical energy converters, are required, because the working fluid for the turbine is heated by the energy released during the chemical reaction just inside the working fuel mixture. The syngas methanation reaction appeared to be the most promising for practical use in the considered scheme.