Results of bench tests of hydraulic dynamometer of type CFT-9.0 manufactured by Fuchino Co Ltd

Abstract

Topical issues of creating test benches for power drive units are considered. The results of testing a hydraulic dynamometer with the aim of clarifying its characteristics are presented. When creating test benches, it is important to choose the right power damping system with its accurate measurement. For these purposes hydraulic dynamometers (HD) are used. The domestic industry has not yet mass-produced them, experimental development is underway. In this regard, it seems appropriate to use imported diesel engines, for example, Japanese-made, of type CFT-9.0 manufactured by Fuchino Co Ltd. This equipment has a commercial preference over other foreign manufacturers. This article discusses the principle of HD operation, its design features, the identified shortcomings and ways to address them, the results of tests of the gas engine on a special bench of JSC «NPO CKTI».The tests carried out made it possible to verify the operability of the acquired HD, to determine the dependence of the HD power on the rotation frequency, the dependence of the cooling water flow rate on the HD power and the dependence of the HD power on the steam flow rate to the steam turbine drive.The results obtained indicate that the HD of type CFT-9.0 manufactured by «Fuchino Co Ltd» can be recommended as a hydrodynamic power absorber with its high-precision measurement in a wide range of rotation speed, modes and power consumption up to 8.5 MW.