Recent Advances in High Temperature Ceramic Regenerators for Externally Fired Gas Turbines: Theoretical and Experimental Results Available to Purchase

Recent development in ceramic regenerators opens a vast range of new applications. Externally fired gas turbines have been limited by the efficiency of the process of transferring the heat to the turbine. So far, both the gasification process of the indirect routes and the heat exchanger efficiency of the direct routes have restricted the efficiency of the whole system to unacceptable values. A new concept of ceramic regenerator has been designed and tested, showing more than 95% efficiency at very high temperatures with low leakage and minimum pressure drop. The design, theoretical and experimental results are explained in the paper. The possibility of using solid biomass in small turbines and microturbines may turn out to be an attractive solution for agricultural and forestry residue revalorization.