New technology for discharge measurement at small hydro stations

摘要

A comparison of the values of discharge measured by the above two methods has been made.rnThe H-ADCP method measured velocity at four depths, each consisting of 22 cells. The measured discharge was 28.982 m~3/s, taking into account a 2.35 per cent uncertainty of the discharge measurement either way. The V-ACDCP method measured velocity at 298 points and the measured discharge was 28.332 m~3/s. This method had a discharge measurement uncertainty of 2.50 per cent either way.rnThe values of the discharge measured by the two ADCPs at the same time show agreement. The difference is approximately 2.27 per cent (within the uncertainties of discharge measurement by the two methods).