PARALLELL OPERATION OF TWO HYDRAULIC TURBINES PAGE
Parallel Operation of Hydro Turbines
In the mid 1980s, I had the pleasure of working with three Norwegian hydro engineers. Nils Petersen is a hydro-electrical engineer, Olav Hotvedt is a hydro-mechanical engineer and Per Franing is a hydro-civil engineer. In Norway, they have a highly specialized university at Tromsk that specializes in the training of hydro engineers.
Nils Peterson made the following mathamatical analysis of the parallel operation of two hydro turbines. It is an elegant analysis that predates personal computers. The curves were actually produced on a light table with graph paper and the first and second derivatives of the power curve were hand plotted!