The International Conference on Technologies and Materials for Renewable Energy, Environment and Sustainability, TMREES14 Some efficient solutions to recover low and medium waste heat: competitiveness of the thermoacoustic technology

Climate change, the policy of the European Union (EU) by 2020 and the carbon-tax make the enhancement of the efficiency of e xisting processes and the reduction of the fuel consumption an urgent call for the industries. Since most of the wasted energy is dis charged in form of hot gases with a low temperature, it makes recovery of this heat a very difficult task, and thus it is i mportant to take a closer look on the existing technologies dedicated to recover low to medium waste heat. This paper details the pros and cons of the Rankine and complexes cycles try to expose a concrete example of each application and finally briefly intro duces the potential of the thermoacoustic heat for recovering waste heat and generating electricity.