Compressed air technology today is more economical than it has ever been
With innovation it is possible to save energy and further exploit the advantages of proven technolog
Compressed air technology provides indispensable services – in the modern day, people no longer think of industry and technology without it. It is compressed air technology which enables the filling of widespread PET bottles with compressed air, and compressed air helps in the purification of water in sewage treatment facilities. However, the economic and energy efficiency factors of compressed air as a working fluid are common topics of criticism. Compressed air technology expert Prof. Dr.-Ing. A. P. Weiß, of the Amberg-Weiden university of applied sciences, has conceded. “In the past, it was the efficacy which most came to the fore […] not the expenditure / benefit ratio”. Climate protection and energy conversion have called for people to revise their thinking. “The focus is now on efficiency.” As it is, economic and scientific fields have for a long time pursued new examples whereby proven technology goes hand in hand with innovation. The common aims are clearly outlined: continuous improvement of the energy efficiency of compressed air, and to make compressed air technology sustainable. Prof. Dr.-Ing. Weiß is convinced of it: “When one makes use of the full potential, compressed air as used in operations is indeed a form of rational energy usage of the future; when it is used correctly there is no need for anyone to shy away from making comparisons!
A study conducted by the European Union shows that 18% of electrical energy in industry is consumed in the generation of air pressure as a service fluid. According to this study, a third of this electricity can be saved with the application of appropriate technology and more efficient systems. Competent skilled workers (technicians) are necessary for this. Compressed air technology was included in the teaching curriculum and scope of research at the HAW Amberg-Weiden institute as early as 2000, together with the establishment of a test stand for air pressure technology and pneumatic motors. The university has worked in close collaboration with the industrial sector since this time. To the mechanical engineering body on these premises – DEPRAG – became the congenial partner in the development of innovative compressed air machines / tools. For example, the development of fast-running turbines for compressed air, CO2, natural gas, steam and other vapours, and the conception of generators necessary for the same would lead to DEPRAG’s GREEN ENERGY turbine system – a technology with which small residual quantities of process gases can be profitably converted to electricity.
