Einloggen

Thematische Bibliographien / Inlet shaft / Zeitschriftenartikel

Um die anderen Arten von Veröffentlichungen zu diesem Thema anzuzeigen, folgen Sie diesem Link: Inlet shaft.

Zeitschriftenartikel zum Thema „Inlet shaft“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 11. Februar 2022

Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an

Wählen Sie eine Art der Quelle aus:

Machen Sie sich mit Top-50 Zeitschriftenartikel für die Forschung zum Thema "Inlet shaft" bekannt.

Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.

Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.

Sehen Sie die Zeitschriftenartikel für verschiedene Spezialgebieten durch und erstellen Sie Ihre Bibliographie auf korrekte Weise.

1

Yang, Qinghua, and Qian Yang. "Numerical investigation of the turbulence characteristics and energy dissipation mechanism of baffle drop shafts." Water Science and Technology 83, no. 9 (2021): 2259–70. http://dx.doi.org/10.2166/wst.2021.137.

Der volle Inhalt der Quelle

Annotation:

Abstract The baffle drop shaft is widely used in deep tunnel drainage systems due to its fine applicability and high energy dissipation. To fully study the turbulence characteristics and energy dissipation mechanism of baffle drop shafts, a 1:25 scale physical model test and a numerical simulation based on the Realizable k-ε model and Volume of Fluid (VOF) method were performed. The results showed that a baffle spacing that is too dense or too sparse is not conducive to energy dissipation and discharge. The minimum baffle spacing is the optimal structural design at the design flow rate when th

APA, Harvard, Vancouver, ISO und andere Zitierweisen

2

Sun, Jianchun, Heng Zhang, Muyan Huang, Qianyang Chen, and Shougen Chen. "Reasonable Paths of Construction Ventilation for Large-Scale Underground Cavern Groups in Winter and Summer." Sustainability 10, no. 10 (2018): 3768. http://dx.doi.org/10.3390/su10103768.

Der volle Inhalt der Quelle

Annotation:

Forced ventilation or newly built vertical shafts are mainly used to solve ventilation problems in large underground cavern groups. However, it is impossible to increase air supply due to the size restriction of the construction roadway, resulting in ventilation deterioration. Based on construction of the Jinzhou underground oil storage project, we proposed both a summer ventilation scheme and winter ventilation scheme, after upper layer excavation of the cavern is completed and connected with the shaft. A three-dimensional numerical model validated with field test data was performed to invest

APA, Harvard, Vancouver, ISO und andere Zitierweisen

3

Fernandes, João, and Ricardo Jónatas. "Experimental flow characterization in a spiral vortex drop shaft." Water Science and Technology 80, no. 2 (2019): 274–81. http://dx.doi.org/10.2166/wst.2019.274.

Der volle Inhalt der Quelle

Annotation:

Abstract Connecting storm-sewers located at rather different elevations may be made with vortex drop shafts in which the energy dissipation is made by the friction between the vertical shaft and the flow and downstream by the impinging jet in a dissipation chamber. Following the first model design in the 1940s, different types of vortex drop shafts have been developed. One of the most used type is the so-called spiral vortex drop shaft developed to work in supercritical flow with good performance in both energy dissipation and space constrains. In this paper, an experimental flow characterizat

APA, Harvard, Vancouver, ISO und andere Zitierweisen

4

Alpan, K., and W. W. Peng. "Suction Reverse Flow in an Axial-Flow Pump." Journal of Fluids Engineering 113, no. 1 (1991): 90–97. http://dx.doi.org/10.1115/1.2926503.

Der volle Inhalt der Quelle

Annotation:

Experiments are carried out to determine the effects of different inlet geometries on the onset of suction recirculation and its associated power consumption in an axial-flow pump. The critical flow rate is determined by both the “string” visual technique and “pressure” method. The results are correlated with the inlet area and flow velocity distribution upstream of the impeller. Four different conical covers matching the impeller leading edge are employed to cover the impeller inlet completely or partially. Covering the inlet area reduces the critical flowrate corresponding to the onset of su

APA, Harvard, Vancouver, ISO und andere Zitierweisen

5

Yao, Zhishu, Ping Zhang, Hua Cheng, Weipei Xue, and Xiang Li. "Testing of a Dual-Steel-Plate-Confined High-Performance Concrete Composite Shaft Lining Structure and Its Application." Applied Sciences 10, no. 8 (2020): 2938. http://dx.doi.org/10.3390/app10082938.

Der volle Inhalt der Quelle

Annotation:

To address the support problem of large-diameter drilling shafts in the west area of Zhangji coal mine, a thinner shaft lining structure composed of double layers of steel plate and high-performance concrete is proposed herein. Firstly, a series of tests of high-performance concrete preparation were carried out, and the optimized mix ratio of pumping concrete with 60–70 MPa strength for shaft lining of the drilled shaft was obtained. Then, shaft lining models were designed according to the similarity theory, and the mechanical properties of the shaft lining were experimentally studied by loadi

APA, Harvard, Vancouver, ISO und andere Zitierweisen

6

Yablokov, Aleksey, Ivan Yanin, Aleksey Danilishin, and Anatoliy Zuev. "Ansys CFX numerical study of stages centrifugal compressor with low-flow rate coefficient." MATEC Web of Conferences 245 (2018): 09002. http://dx.doi.org/10.1051/matecconf/201824509002.

Der volle Inhalt der Quelle

Annotation:

The article presents results of applying the methods of computational fluid dynamics for model low-flow rate stages of centrifugal compressors with flow rate coefficient F = 0.028. The computational domain of a model centrifugal compressor for CFD-simulation consists of the following elements: inlet chamber, impeller, vaneless diffuser, return channel, outlet chamber, shaft seal labyrinth, front and back shroud leakage. Full-scale experimental studies were conducted to model stage 028 in air at an inlet pressure of p* = 1 atm. Numerical research for stage 028 held with flow rate coefficient F=

APA, Harvard, Vancouver, ISO und andere Zitierweisen

7

Liu, Peng, Zheng Lin Liu, Sheng Dong Zhang, Bo Qin, and Liang Zhao. "Research on Performance of Stern Shaft Mechanical Seal Based on FLUENT." Advanced Materials Research 744 (August 2013): 31–34. http://dx.doi.org/10.4028/www.scientific.net/amr.744.31.

Der volle Inhalt der Quelle

Annotation:

Reasonable assumptions and boundary conditions, the application of CFD method of mechanical seal ring structure analysis and thermal-structural coupling analysis, research on the temperature field and the pressure field distribution of the water flim between moving and the stationary ring . Comparing the change of the maximum temperature and the water film bearing capacity though different inlet velocity and different speed under, known as the fluid inlet speed increases, the maximum temperature of the sealing water film gradually decreased, the bearing capacity gradually increased; as the ste

APA, Harvard, Vancouver, ISO und andere Zitierweisen

8

Yang, Chun Xia, Meng Tian Lu, Yuan Zheng, Xiao Qing Tian, and Yu Quan Zhang. "Inlet Passage’s Development and Optimization of New Tidal Unit-Shaft Tubular Turbine." Applied Mechanics and Materials 607 (July 2014): 312–16. http://dx.doi.org/10.4028/www.scientific.net/amm.607.312.

Der volle Inhalt der Quelle

Annotation:

A new type of tidal unit-vertical shaft tubular turbine is designed with high efficiency, large flow rate and low water head ,which has large power under the 2~3 meters water head. According to the data of the being installed tidal units and principles of tubular turbine’s design, the high efficiency vertical shaft tubular turbine was designed under large discharge and low head, which was suitable for the tidal power station. The design also considered the requirements of turbine’s size and the details of flow through the whole flow passage were attained. The turbine’s property was predicted b

APA, Harvard, Vancouver, ISO und andere Zitierweisen

9

Sanaye, Sepehr, and Salahadin Hosseini. "Off-design performance improvement of twin-shaft gas turbine by variable geometry turbine and compressor besides fuel control." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 7 (2019): 957–80. http://dx.doi.org/10.1177/0957650919887888.

Der volle Inhalt der Quelle

Annotation:

A novel procedure for finding the optimum values of design parameters of industrial twin-shaft gas turbines at various ambient temperatures is presented here. This paper focuses on being off design due to various ambient temperatures. The gas turbine modeling is performed by applying compressor and turbine characteristic maps and using thermodynamic matching method. The gas turbine power output is selected as an objective function in optimization procedure with genetic algorithm. Design parameters are compressor inlet guide vane angle, turbine exit temperature, and power turbine inlet nozzle g

APA, Harvard, Vancouver, ISO und andere Zitierweisen

10

Yang, Peiji, Qi Yuan, and Runlin Chen. "Experimental research on the tilting pad bearing under the high temperature of inlet oil." Industrial Lubrication and Tribology 70, no. 6 (2018): 935–41. http://dx.doi.org/10.1108/ilt-01-2017-0021.

Der volle Inhalt der Quelle

Annotation:

Purpose The purpose of this study is to analyze the influence of high-temperature inlet oil on the comprehensive performance of tilting-pad bearing. Design/methodology/approach Taking a tilting-pad bearing under high temperature of inlet oil in a natural gas compressor as an example, the experimental system was developed for the tilting-pad bearing applied in a real machine, and the experiment was performed. The bearing lubricating properties under different high temperatures of inlet oil were obtained, including oil film thickness on the pivot, temperature rise and the shaft vibration values

APA, Harvard, Vancouver, ISO und andere Zitierweisen

11

Tucker, P. G., and P. S. Keogh. "A Generalized Computational Fluid Dynamics Approach for Journal Bearing Performance Prediction." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 209, no. 2 (1995): 99–108. http://dx.doi.org/10.1243/pime_proc_1995_209_412_02.

Der volle Inhalt der Quelle

Annotation:

The use of computational fluid dynamics (CFD) techniques enables performance predictions of bearing designs to be made when the usual operating assumptions of the Reynolds equation Jail to hold. This paper addresses the application of a full three-dimensional thermohydrodynamic CFD approach to journal bearings. The journal/shaft may extend beyond the bearing length and the rotation effect is accounted for in the thermal transport process. A circumferentially uniform shaft surface temperature is not assumed. Cavitation modelling is based on averaged lubricant/vapour properties and does not set

APA, Harvard, Vancouver, ISO und andere Zitierweisen

12

Chen, Xi Shan, and Yong Liang Zhang. "Pre-Cooling the Inlet Airflow of the Mine Utilizing the Shallow Rock Low Temperature Resource." Advanced Materials Research 868 (December 2013): 241–50. http://dx.doi.org/10.4028/www.scientific.net/amr.868.241.

Der volle Inhalt der Quelle

Annotation:

In order to reduce operating temperature of deep mine, took shallow rock layer low temperature effect of mine as natural energy (cold) source in the spring and summer, used shallow abandoned waste roadway as cooling space to carry out research on deep cooling ventilation. Built model of heat and moisture exchange between inlet airflow and low temperature rock layer, carried out numerical simulation for inlet airflow cooling process of specific test mine. At the same time, inlet airflow cooling results of the experimental mine was gotten through testing and verifying. Results show: using this n

APA, Harvard, Vancouver, ISO und andere Zitierweisen

13

Sayma, A. I., M. Vahdati, S. J. Lee, and M. Imregun. "Forced response analysis of a shaft-driven lift fan." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 217, no. 10 (2003): 1125–37. http://dx.doi.org/10.1243/095440603322517144.

Der volle Inhalt der Quelle

Annotation:

The aim of this paper is to give an overview of the multi-bladerow forced response analyses carried out on a shaft-driven lift fan. The lift fan, used for vertical landing and take-off, is situated behind the cockpit and contains seven bladerows, of which two are counter-rotating rotors. The aim of the analysis is to determine the maximum vibration amplitudes of the two rotor bladerows for a range of configurations and speeds. Unlike typical axial-flow compressors, a significant part of the unsteady aerodynamic excitation is due to the distortion of the inlet flow over the cockpit and fuselage

APA, Harvard, Vancouver, ISO und andere Zitierweisen

14

Brun, K., and R. D. Flack. "Laser Velocimeter Measurements in the Turbine of an Automotive Torque Converter: Part I—Average Measurements." Journal of Turbomachinery 119, no. 3 (1997): 646–54. http://dx.doi.org/10.1115/1.2841170.

Der volle Inhalt der Quelle

Annotation:

The three-dimensional average velocity field in an automotive torque converter turbine was examined. Two significantly different operating conditions of the torque converter were tested: the 0.065 and 0.800 turbine/pump speed ratio. Velocities were measured using a one-directional, frequency-shifted laser velocimeter. The instantaneous angular positions of the torque converter turbine and pump were recorded using digital shaft encoders. Shaft encoder information and velocities were correlated to generate average velocity blade-to-blade profiles and velocity vector plots. Measurements were take

APA, Harvard, Vancouver, ISO und andere Zitierweisen

15

Si, Qiaorui, Shouqi Yuan, Jianping Yuan, Chuan Wang, and Weigang Lu. "Multiobjective Optimization of Low-Specific-Speed Multistage Pumps by Using Matrix Analysis and CFD Method." Journal of Applied Mathematics 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/136195.

Der volle Inhalt der Quelle

Annotation:

The implementation of energy-saving and emission-reduction techniques has become a worldwide consensus. Thus, special attention should be provided to the field of pump optimization. With the objective of focusing on multiobjective optimization problems in low-specific-speed pumps, 10 parameters were carefully selected in this study for anL27(310) orthogonal experiment. The parameters include the outlet width of the impeller blade, blade number, and inlet setting angle of the guide vane. The numerical calculation appropriate for forecasting the performance of multistage pumps, such as the head,

APA, Harvard, Vancouver, ISO und andere Zitierweisen

16

Bai, Ping. "Design and Experimental Research on the Sealing Structure of High-Pressure Gear Pump." Advanced Materials Research 468-471 (February 2012): 807–10. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.807.

Der volle Inhalt der Quelle

Annotation:

Due to great pressure difference between inlet and outlet, high-pressure gear pump can cause unbalanced radial force, which results in serious wearing between axle journal of drive shaft and bearing-hole, non-ideal dynamic characteristics, and drop of volumetric efficiency after long run. This paper introduces a new sealing structure. Based on this structure, a high-pressure oil reservoir is installed on the wall of the inner-hole of floating plate for radial support and lubricating, which can effectively reduce shaft wearing and noise, and improve working dynamic characteristics of high-press

APA, Harvard, Vancouver, ISO und andere Zitierweisen

17

Boncompain, R., M. Fillon, and J. Frene. "Analysis of Thermal Effects in Hydrodynamic Bearings." Journal of Tribology 108, no. 2 (1986): 219–24. http://dx.doi.org/10.1115/1.3261166.

Der volle Inhalt der Quelle

Annotation:

A general THD theory and a comparison between theoretical and experimental results are presented. The generalized Reynolds equation, the energy equation in the film, and the heat transfer equation in the bush and the shaft are solved simultaneously. The cavitation in the film, the lubricant recirculation, and the reversed flow at the inlet are taken into account. In addition, the thermoelastic deformations are also calculated in order to define the film thickness. Good agreement is found between experimental data and theoretical results which include thermoelastic displacements of both the sha

APA, Harvard, Vancouver, ISO und andere Zitierweisen

18

Yang, Zhou, Jinbu Yin, Yangliang Lu, Zhiming Liu, Haoyu Yang, and Genhai Xu. "Three-Dimensional Flow of a Vortex Drop Shaft Spillway with an Elliptical Tangential Inlet." Water 13, no. 4 (2021): 504. http://dx.doi.org/10.3390/w13040504.

Der volle Inhalt der Quelle

Annotation:

Vortex drop shaft (VDS) spillways are eco-friendly hydraulic structures used for safely releasing flood. However, due to the complexity of the three-dimensional rotational flow and the lack of suitable measuring devices, current experimental work cannot interpret the flow behavior reliably inside the VDS spillway, consequently experimental and CFD study on a VDS spillway with an elliptical tangential inlet was conducted to further discern the interior three-dimensional flow behavior. Hydraulic characteristics such as wall pressure, swirl angle, annular hydraulic height and Froude number of the

APA, Harvard, Vancouver, ISO und andere Zitierweisen

19

Corvaglia, Alessandro, Massimo Rundo, Paolo Casoli, and Antonio Lettini. "Evaluation of Tooth Space Pressure and Incomplete Filling in External Gear Pumps by Means of Three-Dimensional CFD Simulations." Energies 14, no. 2 (2021): 342. http://dx.doi.org/10.3390/en14020342.

Der volle Inhalt der Quelle

Annotation:

The paper presents the computational fluid dynamics simulation of an external gear pump for fluid power applications. The aim of the study is to test the capability of the model to evaluate the pressure in a tooth space for the entire shaft revolution and the minimum inlet pressure for the complete filling. The model takes into account the internal fluid leakages and two different configurations of the thrust plates have been considered. The simulations in different operating conditions have been validated with proper high dynamics transducers measuring the internal pressure in a tooth space f

APA, Harvard, Vancouver, ISO und andere Zitierweisen

20

Corvaglia, Alessandro, Massimo Rundo, Paolo Casoli, and Antonio Lettini. "Evaluation of Tooth Space Pressure and Incomplete Filling in External Gear Pumps by Means of Three-Dimensional CFD Simulations." Energies 14, no. 2 (2021): 342. http://dx.doi.org/10.3390/en14020342.

Der volle Inhalt der Quelle

Annotation:

The paper presents the computational fluid dynamics simulation of an external gear pump for fluid power applications. The aim of the study is to test the capability of the model to evaluate the pressure in a tooth space for the entire shaft revolution and the minimum inlet pressure for the complete filling. The model takes into account the internal fluid leakages and two different configurations of the thrust plates have been considered. The simulations in different operating conditions have been validated with proper high dynamics transducers measuring the internal pressure in a tooth space f

APA, Harvard, Vancouver, ISO und andere Zitierweisen

21

Hu, Song, Pan Jian Feng, Ai Kun Tang, Xia Shao, and Yang Xian Liu. "Analysis of Criterion Number of Heat Transfer in Micro Catalytic Combustion Process." Applied Mechanics and Materials 316-317 (April 2013): 53–59. http://dx.doi.org/10.4028/www.scientific.net/amm.316-317.53.

Der volle Inhalt der Quelle

Annotation:

Based on a detailed chemical reaction mechanism including gas phase reaction and surface catalytic reaction, adopting the CFD software to simulate the combustion process of premixed hydrogen-oxygen in a sub-millimeter burner, and introducing a calculating model of criterion number of heat transfer, a comparative analysis of surface catalytic conditions is performed to find out the heat transfer characteristics during combustion process. The simulation results show that the effects of inlet velocity on Nux number vary regionally when gas phase reaction combined with surface catalytic reaction.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

22

Andrisano, A. O. "An Experimental Investigation on the Rotating Journal Surface Temperature Distribution in a Full Circular Bearing." Journal of Tribology 110, no. 4 (1988): 638–45. http://dx.doi.org/10.1115/1.3261706.

Der volle Inhalt der Quelle

Annotation:

A method is described for measuring the rotating shaft surface temperature in a full circular bearing. The experimental measurements related to a journal bearing with a unitary length/diameter ratio, are reported. Contrary to the commonly held assumption, the shaft surface temperature is found to remain not quite constant, but to fluctuate during the journal revolution; the value of the temperature in the revolution appears to be maximum about the minimum film thickness. Typical surface temperature distribution scope traces, circumferential variation amplitudes of the surface temperature and i

APA, Harvard, Vancouver, ISO und andere Zitierweisen

23

Filinov, Evgeny, Andrey Tkachenko, Hewa Hussein Omar, and Viktor Rybakov. "Increase the Efficiency of a Gas Turbine Unit for Gas Turbine Locomotives by Means of Steam Injection into the Flow Section." MATEC Web of Conferences 220 (2018): 03010. http://dx.doi.org/10.1051/matecconf/201822003010.

Der volle Inhalt der Quelle

Annotation:

In the modern world of railways, electrification is given great importance. Currently, more than 50% of all freight traffic carried out by electric traction. However, today, about half of the railways are not electrified, so it is necessary to use thermal engines to drive the locomotive. One of the possible variant is use gas turbine unit. The power of the gas turbine unit is given to the electric generator, and the electric motors drive the locomotive. In the present paper, as a power plant of a gas turbine locomotive, considered gas turbine unit with a twin -shaft gas generator of two scheme

APA, Harvard, Vancouver, ISO und andere Zitierweisen

24

Li, WenJing, ShengHua Zou, WanXin Yang, and Qi Hu. "Model of Heat and Mass Exchange between a Downcast Shaft and the Air Flow to the Mine." Geofluids 2020 (October 8, 2020): 1–10. http://dx.doi.org/10.1155/2020/8853839.

Der volle Inhalt der Quelle

Annotation:

Mining activities have increased owing to the rise in the social demand for minerals. Thermal hazards have become a major health and safety consideration in mines. The thermal environment of a working face is related to the air parameters at the bottom of shaft. The objective of this study is to accurately predict the air temperature at the bottom of a shaft in a mine with the ventilation time over 3 years. For this purpose, a mathematical model of the heat and mass exchange between the surrounding rock of the shaft and the downcast air is established by utilizing the finite volume method. The

APA, Harvard, Vancouver, ISO und andere Zitierweisen

25

Gao, Jian Hua, and Ying Yun Huang. "Effect of Ambient Temperature on Three-Shaft Gas Turbine Performance under Different Control Strategy." Advanced Materials Research 424-425 (January 2012): 276–80. http://dx.doi.org/10.4028/www.scientific.net/amr.424-425.276.

Der volle Inhalt der Quelle

Annotation:

Gas turbine is sensitive to ambient temperature. Different ambient temperature could change the state of the inlet air of compressor and make the gas turbine work in off design conditions. Research the effect of ambient temperature on gas turbine performance is valuable to the long-term safe operation of gas turbine. In this paper, a thermodynamic model of a simple cycle gas turbine which has three shafts was established, and steady-state performance simulation under different ambient temperature was carried out. In the two conditions of 1.0 and 0.35 work states, the effect of ambient temperat

APA, Harvard, Vancouver, ISO und andere Zitierweisen

26

Hashmi, Muhammad Baqir, Tamiru Alemu Lemma, and Zainal Ambri Abdul Karim. "Investigation of the Combined Effect of Variable Inlet Guide Vane Drift, Fouling, and Inlet Air Cooling on Gas Turbine Performance." Entropy 21, no. 12 (2019): 1186. http://dx.doi.org/10.3390/e21121186.

Der volle Inhalt der Quelle

Annotation:

Variable geometry gas turbines are susceptible to various malfunctions and performance deterioration phenomena, such as variable inlet guide vane (VIGV) drift, compressor fouling, and high inlet air temperatures. The present study investigates the combined effect of these performance deterioration phenomena on the health and overall performance of a three-shaft gas turbine engine (GE LM1600). For this purpose, a steady-state simulation model of the turbine was developed using a commercial software named GasTurb 12. In addition, the effect of an inlet air cooling (IAC) technique on the gas turb

APA, Harvard, Vancouver, ISO und andere Zitierweisen

27

Fang, Yan Kai, and Limin Chen. "Performance Analysis on Electrical Aided Turbocharged System." Applied Mechanics and Materials 34-35 (October 2010): 1946–50. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1946.

Der volle Inhalt der Quelle

Annotation:

A turbocharger is fitted to a diesel in order to enhance the inlet charge pressure, hence increasing the fresh air in the cylinder, then more fuel can be injected into the cylinder and sequentially more engine power can put out. The electrical aided turbocharged system is a mechanism adding a high speed electronic motor into a turbocharger shaft. The electronic motor can work as a motor to drive the turbocharger shaft and as a generator to generate electricity energy to storage energy. According to certain constraint conditions, the controlling strategy of the hybrid turbocharged system is pre

APA, Harvard, Vancouver, ISO und andere Zitierweisen

28

Liu, Ying-Yuan, Yi-Ran Li, and Le-Qin Wang. "Experimental and theoretical studies on the pressure fluctuation of an internal gear pump with a high pressure." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 3 (2018): 987–96. http://dx.doi.org/10.1177/0954406218758796.

Der volle Inhalt der Quelle

Annotation:

In this paper, the flow ripple equation is derived to analyze the effect of working condition on pressure pulsations of an internal gear pump. Results indicate that working pressure has a significant effect on pressure fluctuation of the internal gear pump, while the rotating speed has a complex influence on the pressure pulsation behavior. Then, pressure pulsations of the internal gear pump under different working conditions are discussed by experimental investigations. Results show that the internal gear pump taken for analysis has a low-pressure pulsation at a high working pressure and a re

APA, Harvard, Vancouver, ISO und andere Zitierweisen

29

Kirk, R. Gordon. "A Method for Calculating Labyrinth Seal Inlet Swirl Velocity." Journal of Vibration and Acoustics 112, no. 3 (1990): 380–83. http://dx.doi.org/10.1115/1.2930519.

Der volle Inhalt der Quelle

Annotation:

The results of numerous investigators have shown the importance of inlet swirl on the calculated dynamic stiffness and stability of labyrinth seals. These results have not included any calculation of inlet leakage of swirl as a function of complex disk geometry including the sealing conditions of the given seal. This paper outlines a method of calculating the inlet swirl at the entrance of the labyrinth seal by introducing a radial chamber which when added to the axial flow solution allows the prediction of the gas swirl as it flows radially from the stage tip along the disk face inward to the

APA, Harvard, Vancouver, ISO und andere Zitierweisen

30

Novecosky, T. "Axial Inlet Conversion to a Centrifugal Compressor With Magnetic Bearings." Journal of Engineering for Gas Turbines and Power 116, no. 1 (1994): 152–55. http://dx.doi.org/10.1115/1.2906784.

Der volle Inhalt der Quelle

Annotation:

NOVA’s Alberta Gas Transmission Division transports natural gas via pipeline throughout the province of Alberta, Canada, exporting it to eastern Canada, United States, and British Columbia. There is a continuing effort to operate the facilities and pipeline at the highest possible efficiency. One area being addressed to improve efficiency is compression of the gas. By improving compressor efficiency, fuel consumption and hence operating costs can be reduced. One method of improving compressor efficiency is by converting the compressor to an axial inlet configuration, a conversion that has been

APA, Harvard, Vancouver, ISO und andere Zitierweisen

31

Ohm, Tea In, Jong Seong Cae, Meng Yu Zhang, and Jin Chul Joo. "Computational Fluid Dynamics Modeling and Field Applications of Non-Powered Hydraulic Mixing in Water Treatment Plants." Water 12, no. 4 (2020): 939. http://dx.doi.org/10.3390/w12040939.

Der volle Inhalt der Quelle

Annotation:

In this study, non-powered hydraulic mixing with three layers of baffles and holes was evaluated as an alternative to vertical shaft impellers in a rapid mixing process through both computational fluid dynamics (CFD) modeling and field applications. From the CFD modeling, the turbulence (i.e., vortex rings) caused by excess kinetic energy between the inlet and second-layer baffle ensures rapid mixing of the coagulants throughout the total water flow and overcomes the damping effect of the components in a mixing basin. Although optimal inlet velocity needs to be investigated for sufficient mixi

APA, Harvard, Vancouver, ISO und andere Zitierweisen

32

Hwang, Sung Hoon, Soo Hyoung Yoon, and Tong Seop Kim. "Design and Off-Design Characteristics of the Alternative Recuperated Gas Turbine Cycle With Divided Turbine Expansion." Journal of Engineering for Gas Turbines and Power 129, no. 2 (2006): 428–35. http://dx.doi.org/10.1115/1.2364195.

Der volle Inhalt der Quelle

Annotation:

In order to fully address the characteristics of the alternative recuperated cycle with divided turbine expansion, both design and off-design analyses have been performed. Two types of mechanical design are assumed: two shaft and single shaft. In particular, optimal pressure ratio division between the high- and low-pressure turbines is evaluated for the single-shaft configuration. It is predicted that the alternative recuperated cycle hardly exhibits sensible design efficiency advantage over the conventional recuperated cycle for moderate turbine inlet conditions and with usual component perfo

APA, Harvard, Vancouver, ISO und andere Zitierweisen

33

Abhulimen, Abel Edeowede, Mathias Usman Bonet, Olukayedo Oyekunle, Nnorom Achara, and Wunuken Carlos Solomon. "An Inquisition on the Combined Effects of Ambient Temperature and Relative Humidity on The Performance of a Uniform Speed Single Shaft Gas Turbine in Tropical Monsoon Climate, using GPAL." European Journal of Engineering Research and Science 5, no. 6 (2020): 736–44. http://dx.doi.org/10.24018/ejers.2020.5.6.1946.

Der volle Inhalt der Quelle

Annotation:

This paper investigates the combined effects of Ambient Temperature and Relative Humidity on the performance of a uniform speed single shaft Gas Turbine, sited in Tropical Monsoon climate. A single shaft gas turbine simulator (known as GPAL) from Gas path Analysis ltd was employed. The City of Portharcourt, Nigeria, was chosen to represent the tropical monsoon climate, with its climatic data of monthly ambient temperature and relative humidity obtained from Koppen. With parameters like speed, reference power, inlet and exhaust losses kept constant, the ambient temperature and relative humidity

APA, Harvard, Vancouver, ISO und andere Zitierweisen

34

Hutchinson, Peter J., Alexander Balog, and Shad E. Hoover. "Microgravity Mapping of an Inception Doline Shaft System." Environmental and Engineering Geoscience 26, no. 2 (2020): 217–25. http://dx.doi.org/10.2113/eeg-2294.

Der volle Inhalt der Quelle

Annotation:

ABSTRACT Reactivation of an inception doline shaft system through anthropogenic actions, precipitation, and possibly seismic activity induced subsidence in a hospital emergency room that was under construction in State College, PA. The convergence of Tropical Storm Lee and Hurricane Irene is interpreted to have caused the building's brick edifice to fall and induce vertical shifts in the reinforced concrete entrance floor slab. Microgravity mapping of the existing hospital emergency room entrance; the emergency room building under construction; and the parking lot in front of the emergency roo

APA, Harvard, Vancouver, ISO und andere Zitierweisen

35

Timushev, S. F., and A. A. Frolov. "Automatic Unloading Liquid Rocket Engine Fuel Feed System Booster Pump Radial Thrust Bearings from Axial Force." Proceedings of Higher Educational Institutions. Маchine Building, no. 7 (736) (June 2021): 54–61. http://dx.doi.org/10.18698/0536-1044-2021-7-54-61.

Der volle Inhalt der Quelle

Annotation:

Increasing the suction capacity, efficiency and energy parameters of high-speed pumps is an important task in the development of power systems in the aerospace industry, as well as in their application in energy and oil production. With improved cavitation properties, the pumps can operate at a higher shaft speed, and at its given value - with lower cavitation reserves, i.e. at a reduced inlet pressure. When the shaft speed increases, the pump weight and overall dimensions decrease. To increase the anti-cavitation qualities of pumps in the power system, auxiliary (booster) pumping units are us

APA, Harvard, Vancouver, ISO und andere Zitierweisen

36

Li, Jun, Hal Gurgenci, Jishun Li, Lun Li, Zhiqiang Guan, and Fang Yang. "Optimal design to control rotor shaft vibrations and thermal management on a supercritical CO2 microturbine." Mechanics & Industry 22 (2021): 22. http://dx.doi.org/10.1051/meca/2021023.

Der volle Inhalt der Quelle

Annotation:

Supercritical carbon dioxide (SCO2) Brayton cycle microturbine can be used for the next generation of solar power. In order to comprehensively optimize the supporting system and cooling device parameters of Brayton cycle shafting, the concept of chaos interval is introduced by chaotic mapping, and the CIMPSO algorithm is proposed to optimize the multi-objective rotor system model with nonlinear variables.The results show that the resonance amplitude of the optimized model is effectively attenuated, and the critical speed point is far away from the working speed, which shows the robustness of t

APA, Harvard, Vancouver, ISO und andere Zitierweisen

37

Duan, Xiaohui, Fangping Tang, Wenyong Duan, Wei Zhou, and Lijian Shi. "Experimental investigation on the correlation of pressure pulsation and vibration of axial flow pump." Advances in Mechanical Engineering 11, no. 11 (2019): 168781401988947. http://dx.doi.org/10.1177/1687814019889473.

Der volle Inhalt der Quelle

Annotation:

Pressure and vibration displacement value are relatively measured by 14 pressure sensors and 2 vibration sensors distributing inside the tank-type model axial flow pump device under different flow rates. By comparison, it is found that the pressure pulsation on the inlet of the impeller is the main cause of hydraulic induced vibration of the pump device, and it is found to have similar amplitude trend with the vertical vibration as the flow rates increases and large correlation coefficient with the horizontal vibration under high flow rates through time-domain analysis. By frequency-domain ana

APA, Harvard, Vancouver, ISO und andere Zitierweisen

38

Simon, H., T. Wallmann, and T. Mo¨nk. "Improvements in Performance Characteristics of Single-Stage and Multistage Centrifugal Compressors by Simultaneous Adjustments of Inlet Guide Vanes and Diffuser Vanes." Journal of Turbomachinery 109, no. 1 (1987): 41–47. http://dx.doi.org/10.1115/1.3262068.

Der volle Inhalt der Quelle

Annotation:

Nowadays, multistage geared centrifugal compressors are most often equipped with three-dimensional impellers and adjustable inlet guide vane cascades, at least upstream of the first stage. Optimum stage efficiencies are made possible by optimum axial in-flow into each stage and freely selectable pinion shaft speeds. Combined with intercooling of the medium, the result is high machine efficiency with good operating ranges. Additional increases in efficiency can be achieved by means of vaned diffusers. Due to the attendant restriction to the working range, this solution is not common in producti

APA, Harvard, Vancouver, ISO und andere Zitierweisen

39

Suryono, Edy, and Agustinus Eko Budi Nusantara. "SIMULASI TURBIN CROSSFLOW DENGAN JUMLAH SUDU 18 SEBAGAI PEMBANGKIT LISTRIK PICOHYDRO." Simetris : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer 8, no. 2 (2017): 547. http://dx.doi.org/10.24176/simet.v8i2.1412.

Der volle Inhalt der Quelle

Annotation:

ABSTRAK Dewasa ini isu krisis energi terus berkembang, dimana dibutuhkan energi terbarukan agar dapat menggantikan energi fosil yang menurut perkiraan akan segera habis, sehingga apabila tidak ada energi yang terbarukan maka manusia akan kekurangan energi. Salah satu upaya pengembangan energi terbarukan adalah dengan pengembangan pembangkit listri bertenaga air yang bernama picohydro, dimana picohydro ini dapat menghasilkan energi listrik kurang dari 5 kW. Hal ini terutama diaplikasikan untuk debit air yang rendah.Penelitian ini ditujukan untuk mensimulasikan turbin crossflow pada komponen pem

APA, Harvard, Vancouver, ISO und andere Zitierweisen

40

Zhu, Di, Ran Tao, Ruofu Xiao, Wei Yang, Weichao Liu, and Fujun Wang. "Optimization design of hydraulic performance in vaned mixed-flow pump." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 7 (2019): 934–46. http://dx.doi.org/10.1177/0957650919887584.

Der volle Inhalt der Quelle

Annotation:

Vaned mixed-flow pump is widely used in industrial and agricultural cases. Considering mixed-flow impeller and space guide-vanes, the impeller and guide-vane blade angles need optimization design. In order to conduct optimization, the global dynamic-criterion algorithm with the ability of parallel running, dynamic criterion and escaping from local-best trap was used in this case. Based on numerical simulation and experimental verification, the 18 parameters' combination was optimized using this algorithm to achieve higher-efficiency in a specific flow rate range around the design condition. Th

APA, Harvard, Vancouver, ISO und andere Zitierweisen

41

Fatsis, Antonios. "Performance Enhancement of One and Two-Shaft Industrial Turboshaft Engines Topped With Wave Rotors." International Journal of Turbo & Jet-Engines 35, no. 2 (2018): 137–47. http://dx.doi.org/10.1515/tjj-2016-0040.

Der volle Inhalt der Quelle

Annotation:

Abstract Wave rotors are rotating equipment designed to exchange energy between high and low enthalpy fluids by means of unsteady pressure waves. In turbomachinery, they can be used as topping devices to gas turbines aiming to improve performance. The integration of a wave rotor into a ground power unit is far more attractive than into an aeronautical application, since it is not accompanied by any inconvenience concerning the over-weight and extra dimensioning. Two are the most common types of ground industrial gas turbines: The one-shaft and the two-shaft engines. Cycle analysis for both typ

APA, Harvard, Vancouver, ISO und andere Zitierweisen

42

Yu, Z., and D. W. Childs. "A Comparison of Experimental Rotordynamic Coefficients and Leakage Characteristics Between Hole-Pattern Gas Damper Seals and a Honeycomb Seal." Journal of Engineering for Gas Turbines and Power 120, no. 4 (1998): 778–83. http://dx.doi.org/10.1115/1.2818467.

Der volle Inhalt der Quelle

Annotation:

Honeycomb annular seals are an attractive design alternative due to their superior static and dynamic performance. However, their implementation in industrial practice has been delayed by the following characteristics: a) manufacturing time can be appreciable, and b) they can seriously damage the shaft if rubbing occurs. To minimize these problems, “hole-pattern” gas damper seals, which are formed by simply drilling holes into an annular smooth seal, were manufactured and tested. The hole-pattern damper seal stator can be made of high-strength plastic materials which are less likely to damage

APA, Harvard, Vancouver, ISO und andere Zitierweisen

43

BORZEA, Claudia, Adrian SAVESCU, Iulian VLADUCA, and Adrian STOICESCU. "ASYNCHRONOUS THREE-PHASE MACHINE DRIVEN AS GENERATOR BY A TWIN-SCREW EXPANDER." "ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)" 2020, no. 1 (2021): 1–8. http://dx.doi.org/10.36801/apme.2020.1.5.

Der volle Inhalt der Quelle

Annotation:

The paper presents the functioning regimes of a 132 kW asynchronous three-phase machine, used for the expander-generator system in a compressed air energy storage facility. The installation consists of a 110 kW twin-screw electro-compressor, which supplies pressurized air up to ~16 bar into a 50 cubic meters storage vessel. The compressed air is afterwards released from the reservoir into expander’s inlet, spinning its shaft. When the expander’s shaft spins the electric machine over its synchronous speed, this one enters in generator mode, supplying electric power into the grid. Two power anal

APA, Harvard, Vancouver, ISO und andere Zitierweisen

44

Prasetyo, Totok, Mochamad Denny Surindra, Wahyu Caesarendra, et al. "Influence of Superheated Vapour in Organic Rankine Cycles with Working Fluid R123 Utilizing Low-Temperature Geothermal Resources." Symmetry 12, no. 9 (2020): 1463. http://dx.doi.org/10.3390/sym12091463.

Der volle Inhalt der Quelle

Annotation:

An organic Rankine cycle (ORC) system with R123 working fluid has been utilised for generating electricity from low-temperature geothermal resources. The degree of superheated vapour warrants attention to be studied further. This is because the degree of superheated vapour is the last point to absorb heat energy from geothermal heat sources and influence the amount of expansion power produced by the expander. Therefore, achieving high ORC system efficiency requires a parameter of superheated vapour degree. This paper presents an experimental study on a binary cycle, applying R123 as the workin

APA, Harvard, Vancouver, ISO und andere Zitierweisen

45

Antolín-Urbaneja, J. C., J. Lasa, P. Estensoro, I. Cabanes, and M. Marcos. "Innovative Hydraulic Power Take-Off Construction and Performance Tests for Wave Energy Conversion." Applied Mechanics and Materials 432 (September 2013): 316–23. http://dx.doi.org/10.4028/www.scientific.net/amm.432.316.

Der volle Inhalt der Quelle

Annotation:

This document describes and demonstrates the features of a new innovative hydraulic Power take-Off (PTO) to be used for Wave Energy Conversion. This device is able to transform low frequency oscillating movement into a continuous high frequency angular speed, absorbing high fluctuated torque at the input shaft, which can reach up to 8000Nm. Moreover, the major breakthrough of this device is that it can control the braking torque through the modification of some geometrical parameters, L and R, and through the activation of more than one hydraulic cylinder together with the pressure. The output

APA, Harvard, Vancouver, ISO und andere Zitierweisen

46

Arifin, Maulana. "Rotordynamics analysis of solar hybrid microturbine for concentrated solar power." Journal of Mechatronics, Electrical Power, and Vehicular Technology 11, no. 1 (2020): 38. http://dx.doi.org/10.14203/j.mev.2020.v11.38-44.

Der volle Inhalt der Quelle

Annotation:

Microturbine based on a parabolic dish solar concentrator runs at high speed and has large amplitudes of subsynchronous turbo-shaft motion due to the direct normal irradiance (DNI) fluctuation in daily operation. A detailed rotordynamics model coupled to a full fluid film radial or journal bearing model needs to be addressed for increasing performance and to ensure safe operating conditions. The present paper delivers predictions of rotor tip displacement in the microturbine rotor assembly supported by a journal bearing under non-linear vibrations. The rotor assembly operates at 72 krpm on the

APA, Harvard, Vancouver, ISO und andere Zitierweisen

47

Hu, Peixin, and Mehrdad Zangeneh. "Investigations of 3D Turbulent Flow Inside and Around a Water-Jet Intake Duct Under Different Operating Conditions." Journal of Fluids Engineering 121, no. 2 (1999): 396–404. http://dx.doi.org/10.1115/1.2822221.

Der volle Inhalt der Quelle

Annotation:

In this paper the flow field in the intake duct of a model water-jet unit is studied by using a commercial 3D CFD code. In order to model the intake duct/hull interaction, the computational domain includes a large section of the hull in the vicinity of the intake duct opening. Appropriate boundary conditions are used on the far upstream and downstream of the duct inlet in order to minimize the effect of the domain boundaries on the flow field in the vicinity of the intake duct. Computations are performed for different boat speeds and flowrates. In addition, the effects of the impeller shaft, s

APA, Harvard, Vancouver, ISO und andere Zitierweisen

48

Gao, Xiongfa, Ting Zhao, Weidong Shi, et al. "Numerical Investigation of an Open-Design Vortex Pump with Different Blade Wrap Angles of Impeller." Processes 8, no. 12 (2020): 1601. http://dx.doi.org/10.3390/pr8121601.

Der volle Inhalt der Quelle

Annotation:

The blade wrap angle of impeller is an important structural parameter in the hydraulic design of open-design vortex pump. In this paper, taking a vortex pump with a cylindrical blade structure as the research object, two kinds of different blade wrap angle of vortex pump impellers are designed. The experiment and numerical simulation research is carried out, and the results of external characteristics and internal flow field are obtained under different flow rate. The results show that when ensuring that other main structural parameters remain unchanged, the efficiency and head of open-design

APA, Harvard, Vancouver, ISO und andere Zitierweisen

49

Sukhotski, A. B., G. S. Marshalova, and Е. S. Danil’chik. "Specific Features of Calculating the Radiant Component of the Heat Flow of Horizontal Bunch from Finned Tubes with Exhaust Shaft." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 63, no. 4 (2020): 380–88. http://dx.doi.org/10.21122/1029-7448-2020-63-4-380-388.

Der volle Inhalt der Quelle

Annotation:

The article discusses the heat exchange of radiation of bunches of round finned tubes with the environment and the exhaust shaft. The system of equations describing the entire set of primary processes that make up the radiation heat exchange of finned bundles is very complex mathematically; therefore, the calculations of radiant heat transfer are usually based on a number of simplifying assumptions with a involuntarily distortion of the real physical picture. The main methods for calculating radiation used in engineering practice, viz. calculation by the average angular coefficient and the zon

APA, Harvard, Vancouver, ISO und andere Zitierweisen

50

Gruver, J. K., R. D. Flack, and K. Brun. "Laser Velocimeter Measurements in the Pump of an Automotive Torque Converter: Part I—Average Measurements." Journal of Turbomachinery 118, no. 3 (1996): 562–69. http://dx.doi.org/10.1115/1.2836703.

Der volle Inhalt der Quelle

Annotation:

A torque converter was tested for two turbine/pump rotational speed ratios, 0.065 and 0.800, and a laser velocimeter was used to measure three components of velocity within the pump. Shaft encoders were used to record the instantaneous pump angular position, which was correlated with the velocities. Average flow velocity profiles were obtained for the pump inlet, mid-, and exit planes. Large separation regions were seen in the mid- and exit planes of the pump for a speed ratio of 0.800. Strong counterclockwise secondary flows were observed in the midplane and strong clockwise secondary flows w

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Wir bieten Rabatte auf alle Premium-Pläne für Autoren, deren Werke in thematische Literatursammlungen aufgenommen wurden. Kontaktieren Sie uns, um einen einzigartigen Promo-Code zu erhalten!