Numerical investigation of operation levels in a surge tank of a small hydropower plant

Çalamak, Melih
Bozkuş, Zafer
It is important that engineers in charge of operating a small hydro power plant (SHPP) have accurate information regarding safe operation levels of a surge tank installed as a surge protection device in the energy producing facility. Typically, minimum and maximum operation levels of water surface in a surge tank are determined by the engineers in practice, using some available simplified equations. As will be demonstrated in the present study, the results of those simplified equations may differ greatly from one another, causing a concern about their reliability and applicability for a given problem. Therefore, it is suggested that the operation levels be determined by a reliable numerical method. The Method of Characteristics (MOC) is such a method that is probably the most widely used in fluid transients. Due to the unsteady nature of water surface fluctuations in a surge tank, this method may be used reliably, with accurate results. In the study, an existing and calibrated software making use of the MOC is employed to determine the operation levels of a surge tank which is a part of a proposed small hydropower project to be built in the Black Sea region of Turkey. The results produced by the software are compared to the values obtained from the empirical equations mentioned earlier.
Citation Formats
M. Çalamak and Z. Bozkuş, “Numerical investigation of operation levels in a surge tank of a small hydropower plant,” presented at the 10th International Congress on Advances in Civil Engineering (ACE 2012), 17-19 October 2012, Ankara, Turkey, 2012, Accessed: 00, 2021. [Online]. Available: