FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2079059912> ?p ?o ?g. }

• W2079059912 endingPage "557" @default.
• W2079059912 startingPage "554" @default.
• W2079059912 abstract "Contributed by the Fluids Engineering Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the Fluids Engineering Division April 21, 2000; revised manuscript received November 26, 2001. Associate Editor: B. Schiavello. Many researchers, such as Daugherty 1, Stepanoff 2, Telow 3, Ippen 4, Itaya and Nishikawa 5, tested the performance of centrifugal oil pumps while the viscosity of the oil was varied. These typical results provided great insights about the effects of the oil viscosity on the performance of centrifugal oil pumps. These test results were used to obtain important guidelines for selection and design of the pumps which are still in use today. However, these experimental results are based on oil pumps made in the 20s and 50s. In the mean time, both the hydraulic models of the pumps and their constructions have shown significant variations. If the past results are still used to guide the selection and design of the centrifugal oil pumps today, the results calculated will show a greater difference with those in the real situation. The application will be harmful for the technological development of the oil pumps. On the other hand, some researchers, such as Stoffel 6, Li and Hu 7 used the pumps, which were designed by themselves, to conduct experiments. The application of these results cannot have universal guiding significance. The centrifugal oil pump of type 65Y60 based on API610 standard is selected in this study. The aim of the study is to explore the relationship of the performance correction factors with the oil viscosity, as well as provide a reference for the design and selection of the pump. The test pump is a centrifugal oil pump of type 65Y60 based on API610 standard, which is commonly applied to transport hot oil with temperature less than 350°C. The design parameters of the pump are: flow rate Q=25m3/h, head H=60m, rotating speed n=2950r/min, and specific speed ns=nQ/H0.75=589 (USGPM). Figure 1 shows the cross section of the pump and Fig. 2 presents the test impeller configuration. The test rig is composed of a tank, global valve, suction and discharge pipes, turbine flow meter, gate valve, differential pressure sensor and torque detector. The sensor gives the difference of the liquid static pressure between the pump inlet and outlet and the detector indicates the torque input and the shaft speed. The total uncertainties of flow rate, head, input power, and efficiency are 0.707%, 0.205%, 0.515%, and 0.908%, respectively. The test liquids are water and No. 100 mechanical oil, respectively. Both the oil density and the kinematical viscosity are function of the oil temperature. The relationship of the density with the temperature based on the measurement data can be written as ρ=906.653−0.526715Twhere ρ stands for the density of the oil and its unit is kg/m3.T is the oil temperature and its unit is centigrade degree. The relation between the oil viscosity and the temperature is ν=11.01198×10−5T2−2.222306×10−4T+2.86581×10−3where ν represents the kinematical viscosity and its unit is mm2/s, that is equal to cSt. The kinematic viscosity values in the performance are: 1(water), 29, 45, 75, 98, 134, 188, and 255 cSt(oil), respectively. In order to determine the viscous oil performance when the water performance is known, the flow rate, head, and efficiency correction factors against viscosity are illustrated in Fig. 3. The flow rate, head, and efficiency correction factors KQ,KH and Kη are defined as KQ=QOQW,KH=HOHW,Kη=ηOηWwhere QW,HW, and ηW stand for the water flow rate, head, and efficiency at the selected point, QO,HO, and ηO stands for the viscous oil flow rate, head and efficiency at the corresponding point. Here q is used to indicate the operation condition while pumping the viscous oil and it is defined as q=QOQOBEP=QWQWBEPwhere QOBEP represents the viscous oil flow rate at the best efficiency point and QWBEP denotes the water flow rate at the best efficiency point. To examine the effects of pump operating condition on the head and efficiency correction factors, the factors corresponding to part-loading points q=0.6, 0.8 and over-loading point q=1.2 are also shown in the Fig. 3. While the oil viscosity is less than 100 cSt, the head correction factors are independent from the operating condition. However when the oil viscosity is larger than 100 cSt, the head correction factors strongly depend upon the operating condition. Thus in determining the viscous oil head performance from water known head performance the pump operating condition should be distinguished while pumping high viscosity oil. The efficiency correction factors depend on the operating condition only by a little. Therefore, in determining the viscous oil efficiency performance from water known efficiency performance the operating condition does not need to be distinguished. At present time, there are two sets of curves of the performance correction factors, one set has been proposed by Hydraulic Institute Standards (HIS) in 1994 8, while the other set was published by the former Soviet Union (USS) in the 50s 9. Figure 4 illustrates the comparison of presented paper with the two sets of the factors published in the above standards at best efficiency point, i.e., q=1.0. Figure 4 shows a large difference between the factors of this paper and those proposed by the former Soviet Union Standard (USS) in 50s. The maximum of the relative error of flow rate, head, and efficiency correction factors is 10%, 10%, and 22%, respectively. The flow rate, head, and efficiency correction factors proposed by Hydraulic Institute Standards (HIS) in 1994 also doesn’t agree well with data of this paper, the maximum of the relative error of the flow rate, head, and efficiency correction factors is 8%, 6%, and 15%, respectively. With regard to the test pump the following conclusions can be drawn: 1 The head correction factors are related to the pump operating conditions. Therefore in determining the performance of liquid with high viscosity from water known performance the head correction factors should be chosen with relation to the pump operating condition. 2 If the correction factors from published standards are used to determine the viscous oil performance such as flow rate, head, and efficiency from water known performance for current centrifugal oil pumps a relative error of 10% or more can occur. This project was financially supported by the Education Department of the former Ministry of Machine-Building Industry and Gansu University of Technology, China. The authors thank Lanzhou Pump Works for providing the centrifugal oil pump and manufacturing the impellers." @default.
• W2079059912 created "2016-06-24" @default.
• W2079059912 creator A5008111724 @default.
• W2079059912 creator A5018914643 @default.
• W2079059912 creator A5023005996 @default.
• W2079059912 date "2002-05-28" @default.
• W2079059912 modified "2023-09-25" @default.
• W2079059912 title "Experimental Investigations of Performance of a Commercial Centrifugal Oil Pump" @default.
• W2079059912 cites W1500131189 @default.
• W2079059912 cites W2011872202 @default.
• W2079059912 cites W4312925873 @default.
• W2079059912 doi "https://doi.org/10.1115/1.1458581" @default.
• W2079059912 hasPublicationYear "2002" @default.
• W2079059912 type Work @default.
• W2079059912 sameAs 2079059912 @default.
• W2079059912 citedByCount "3" @default.
• W2079059912 countsByYear W20790599122018 @default.
• W2079059912 countsByYear W20790599122023 @default.
• W2079059912 crossrefType "journal-article" @default.
• W2079059912 hasAuthorship W2079059912A5008111724 @default.
• W2079059912 hasAuthorship W2079059912A5018914643 @default.
• W2079059912 hasAuthorship W2079059912A5023005996 @default.
• W2079059912 hasConcept C127413603 @default.
• W2079059912 hasConcept C153005164 @default.
• W2079059912 hasConcept C166675230 @default.
• W2079059912 hasConcept C192562407 @default.
• W2079059912 hasConcept C21880701 @default.
• W2079059912 hasConcept C39432304 @default.
• W2079059912 hasConcept C78519656 @default.
• W2079059912 hasConcept C78762247 @default.
• W2079059912 hasConceptScore W2079059912C127413603 @default.
• W2079059912 hasConceptScore W2079059912C153005164 @default.
• W2079059912 hasConceptScore W2079059912C166675230 @default.
• W2079059912 hasConceptScore W2079059912C192562407 @default.
• W2079059912 hasConceptScore W2079059912C21880701 @default.
• W2079059912 hasConceptScore W2079059912C39432304 @default.
• W2079059912 hasConceptScore W2079059912C78519656 @default.
• W2079059912 hasConceptScore W2079059912C78762247 @default.
• W2079059912 hasIssue "2" @default.
• W2079059912 hasLocation W20790599121 @default.
• W2079059912 hasOpenAccess W2079059912 @default.
• W2079059912 hasPrimaryLocation W20790599121 @default.
• W2079059912 hasRelatedWork W1562815919 @default.
• W2079059912 hasRelatedWork W1974275890 @default.
• W2079059912 hasRelatedWork W2025471463 @default.
• W2079059912 hasRelatedWork W2062042481 @default.
• W2079059912 hasRelatedWork W2737498735 @default.
• W2079059912 hasRelatedWork W2796280161 @default.
• W2079059912 hasRelatedWork W2898370298 @default.
• W2079059912 hasRelatedWork W2899084033 @default.
• W2079059912 hasRelatedWork W3085844188 @default.
• W2079059912 hasRelatedWork W4249592715 @default.
• W2079059912 hasVolume "124" @default.
• W2079059912 isParatext "false" @default.
• W2079059912 isRetracted "false" @default.
• W2079059912 magId "2079059912" @default.
• W2079059912 workType "article" @default.