Calculating Runaway Pressure Surges in Small Hydro Units

by E. John List, California Inst of Technology, Pasadena, CA, USA,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Determination of the runaway speed and concomitant pressure surges requires consideration of both the turbine rotodynamics and the waterhammer equations. In this paper a simplified method of analysis is demonstrated that enables a rapid calculation of the pressure surges created and the turbine runaway speed. A comparison with results of detailed computer-derived solutions shows the method to be very reliable, and that runaway-induced surges can be significant for some pump units used as turbines.

Subject Headings: Hydraulic models | Hydrologic models | Water supply systems | Water hammer | Comparative studies | Computing in civil engineering | Hydraulic pressure | Hydraulic transients

Services: Buy this book/Buy this article


Return to search