ポンプ逆転水車に関する研究

概要

論文の詳細を見る
Reverse running pump turbines can generate power by reverse rotating of mass-produced centrifugal pumps, therefore they have a low cost efficiency. In this research, turbine characteristic test and detailed experiments on internal flow were carried out to improve turbine performance and predict turbine characteristic for expansion of the applicability range. The reseach results have clarified the followings: (1) The flow at the runner inlet at the best efficiency point is greatly influenced by the location of the casing inlet port. (2) At the best efficiency point, the absolute flow angle at the runner outlet is nearly 90° and water is discharged from the runner without having nearly any swirl component. (3) The turbine characteristics may be predicted roughly from the pump characteristics. (4) The runners having thinner and round shaped vane inlet improve the turbine efficiency. (5) The H-Q curve of the turbine is varied little by reducing the runner outlet diameter.
社団法人日本機械学会の論文
1999-10-25