Akademik Veri Yönetim Sistemi
the 13th International Congress on Advances in Civil Engineering, İzmir, Türkiye, 12 - 14 Eylül 2018
Liquid slugs trapped in a voided line may damage the pipe
systems used in thermal power plants. Problems in those plants have been
reported in the literature. In order to prevent the failures of the pipes, the
impact pressures due to slugs should be predicted as accurately as possible. In
the present study, slug motion is experimentally investigated. Experiments are conducted
to measure impact force due to slug flow for a larger pipe diameter which
represent the real piping systems better. An inclined pipe is used in the
experiments, which is connected to a pressurized air tank and between them a
ball valve is located. A slug mass or the initial slug length before each
experiment can be set at the lower part of the pipe by using a water tank at
the upstream. By opening the valve the liquid slug is accelerated due to the
pressurized air at the tank and hits 90o degree elbow located at the
downstream end of the pipe. After the elbow, the system is open to atmosphere
with a short pipe segment. The pipe is rigidly attached to air tank and
concrete floor. Due to extensive anchoring, the pipe can be assumed to be rigid
and constrained from axial movement induced by the slug impact. To measure the
pressure history, a pressure transducer is installed on the elbow.Peak
pressures at the elbow are measured for different initial slug lengths. The
experimental results obtained in this study can be used to validate different
numerical approaches.