Paper Contents
Abstract
Micro hydropower projects are the best alternatives for electricity generation. These power plants can be installed on small streams, rivers, channels, etc. without causing any effect on the environment. But the only problem is the high cost. The cost of a conventional turbine is very high. Hence the use of pumps instead of turbines is the best solution. This concept is generally known as a pump as turbine i.e., PAT. But the efficiency of PAT is low compared to conventional turbines. To improve the efficiency of PAT, a back cavity is filled with material like wood, which avoid the water to enter inside non-flow zones of PAT. Because of this, the disk-friction losses get reduced which increases efficiency. But it cannot increase the efficiency by a significant amount so if we add the balance holes on the impeller it results in a further increase in efficiency and also it reduces the pressure gap between the front and back cavities.
Copyright
Copyright © 2023 Satyajit kashinath jare. This is an open access article distributed under the Creative Commons Attribution License.
