Е-Публикации
Технически университет - София

Abstract: The testing of different types of hydraulic elements and systems is directly related to the ability to measure several basic parameters in hydraulics, such as pressure and flow rate. Pressure can be measured relatively easily by attaching control points to measure pressure in the system by means of manometers. Measuring pressure in hydraulic systems is much easier and much cheaper than measuring flow rate in a given system. Apart from the expensive turbine hydraulic flow meters which are most commonly used in practice, the present work offers an alternative concept for flow rate measurements within the range of 0 to 25 l/min. The elements used for the system build up are given and explained. The method and the system test results are presented and analyzed. It is also made a comparison between three experiments that was made.

References

1. G. Grozev, S. Stoyanov, G.Guzhgulov, Hydraulic and pneumatic machines and control, (Tehnica, Sofia, 1990), in Bulgarian.
2. G. Grozev, M. Lazarov, V. Obretenov, Hydraulic Machines, (Tehnica, Sofia, 2006), in Bulgarian.
3. Liu, Y.; Gu, L.; Yang, B.; Wang, S.; Yuan, H. “A new evaluation method on hydraulic system using the instantaneous speed fluctuation of hydraulic motor” in Proc. Inst. Mech. Eng. Part C: J. Mech. Eng. Sci. 2018.doi:10.1177/0954406217722576
4. P. Sliwinski, “Determination of the Theoretical and Actual Working Volume of a Hydraulic Motor”, Energies 2020, 13(22), 5933; https://doi.org/10.3390/en13225933
5. L. Hružík, M. Vašina, and A. Bureček, “Measurement and evaluation of static characteristics of rotary hydraulic motor”, EPJ Web of Conferences 67, 02041 DOI: 10.1051/epjconf/20146702041, (2014)

Issue