The coefficient of efficiency of hydraulic circuits
Journal Title: Праці Одеського політехнічного університету - Year 2017, Vol 1, Issue 51
Abstract
Moving liquids by industrial and domestic hydraulic circuits annually requires tens of billions of kilowatts of electricity per hour. Today there is not any universal indicator that would characterize generalized conversion efficiency of electrical energy into hydraulic and efficiency of using of hydraulic energy. This greatly complicates the optimization of the hydraulic circuit parameters on energy criterion in its design or testing calculation. Aim: The aim is to assess the losses in the discharge equipment of hydraulic circuits, as well as in pipeline through the introduction of common indicator of the effectiveness of transporting liquid. Materials and Methods: We show that specifications for energy efficiency of hydraulic circuit it is not enough the pumping efficiency of the installation, or calculate the efficiency of individual elements of the hydraulic circuits. To achieve the goal asked to enter the energetic coefficient of energy perfected circuit, which is the ratio of output flow power from the hydraulic circuit to the flow power on the pump shaft. Results: The proposed coefficient takes into account the loss of pressure in the pump and in the pipeline and provides an objective assessment of the energy efficiency of the circuit; in addition, it allows you to compare the energy perfection of hydraulic systems with different parameters and different pumps. The proposed coefficient should be used in the design of hydraulic circuits and during the checking calculation.
Authors and Affiliations
O. G. Butenko
Keywords
Related Articles
- EP ID EP316502
- DOI 10.15276/opu.1.51.2017.09
- Views 145
- Downloads 0
Surface hardening of steel parts
Development of new resource-saving and cost-effective technologies of combined hardening of steel parts with a significant reduction of the process duration is an important and urgent task. Aim: The aim of the work is to...
Application of the statistical approach in diagnosing in medical and biological researches
The task of diagnosis in biomedical research in a number of cases can be solved using a statistical approach. Current research is the possibility of using statistical analysis to diagnose the state of the human respirato...
Estimation of residual strength of pipeline's elbow with volumetric corrosion defect, which is developing
Pipelines are used as one of the most practical and low cost methods for transmission of different liquid petroleum products and gases. Damage on the pipeline is capable to appear during operation due to the accumulation...
The properties of time-frequency localization of basis functions used in OFTDM communication systems
This article investigates the properties of time-frequency localization (TFL) of various basis functions, such as rectangular function, the function of half cosine, isotropic orthogonal transform algorithm (IOTA) functio...
Еnhancement of reliability and efficiency of cooling towers of nuclear power plants
Present paper contains results of Rivne nuclear power plant cooling towers testing to define their cooling efficiency change during continuous service by means of comparing the actual temperature of cooled water with the...