Paper
Effects of Using Pelton Impulse Turbines as Thermal Machines
- Authors:
- Sebasti?o Cardoso; Ezio Castejon Garcia; Demétrio Bastos Netto
- Abstract
- In the last century, the technological development of flow machines has separated them into two distinct categories,: thermal machines and fluid machines. More recently, some researchers have contradicted traditional methods and have begun to invest time and money in the development of impulse machines, including Pelton turbines, to operate with compressible fluids. These machines are intended for use with incompressible fluids, however, in certain circumstances this equipment can be used to transform a portion of the energy content of compressible fluid into mechanical energy. The first difficulty is to transform thermal energy of the working fluid into kinetic energy without significant energy dissipation. Next, depending on the potential energy of the working fluid, it is necessary to use more than one machine in series to transform larger quantities of thermal energy into mechanical energy. Finally, a careful analysis of these machines operating with compressible fluids demonstrates that they cannot compete with reaction machines at low thermal efficiency. There remains an academic objective to disseminate traditional concepts of fluid machines, which are not always observed by directors and managers of companies, thus avoiding unnecessary expenses with the use and adaptation of compressible fluids in impulse machines.
- Keywords
- Energy; Thermal Machine; Impulse; Efficiency
- StartPage
- 18
- EndPage
- 25
- Doi
- 10.18005/JMET0302002