Results 11 to 20 of about 331,965 (306)

Analysis and Prevention of Water Erosion on Final Stage Blade in Low-pressure Cylinder of 630 MW Units

open access: yesZhejiang dianli, 2022
Shrouded blades that are widely used in the final stage of low-pressure cylinder of large steam turbines can significantly improve the performance of the units. After long low-load operation, they are susceptible to water erosion which damages or results
WANG Weiying   +5 more
doaj   +1 more source

Application of Low-Cost Transducers for Indirect In-Cylinder Pressure Measurements

open access: yesSAE International Journal of Engines, 2022
<div>The aim of this work is to present the results achieved in the evaluation of combustion metrics using low-cost sensors for the indirect measurement of cylinder pressure. The developed transducers are piezoelectric rings placed under the spark plugs.
Corti E.   +7 more
openaire   +2 more sources

Performance Analysis and Application Research of Low-Pressure Cylinder Zero Output Technology on 320 MW Unit

open access: yesZhongguo dianli, 2021
Using low-pressure cylinder zero output technology can effectively improve the heating capacity and peak regulation capacity of the generation unit. In this paper, taking a 320 MW heating unit for example, firstly, Ebsilon software is used to calculate ...
Shuangbai LIU   +3 more
doaj   +1 more source

Comparative Study of Thermoelectric Characteristics of Two Flexibility Transformation Technologies

open access: yesZhongguo dianli, 2023
High and low pressure bypass combined heating supply and low-pressure cylinder zero output technology are two important flexibility transformation technologies, which can effectively improve thermal power units’ peak regulation capacity and heating ...
Xiangyong LI   +5 more
doaj   +1 more source

Investigation into the Relationship between Super-Knock and Misfires in an SI GDI Engine

open access: yesEnergies, 2021
The super-knock poses new challenges for further increasing the power density of spark ignition (SI) engines. The critical factors and mechanism connecting regarding the occurrence of super-knock are still unclear.
Jian Gao   +6 more
doaj   +1 more source

Simulation of a turbine case vibrations for the analysis of transition process [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2020
Problem. The problem of issues of increased vibration for the case sheets of the steam turbines with the capacity of more than 500 МW was considered. For this work it was found that the main cause of increased vibration in turbine-type steam equipment is
Krasnikov Sergey
doaj   +1 more source

Optimization of Manufacturing Processes by Reducing the Costs of Tools and Equipment on Hydraulically Operated High-Pressure Technological Lines [PDF]

open access: yesMATEC Web of Conferences, 2022
Most technological manufacturing lines include hydraulically operated stationary tools, devices and equipment. During a manufacturing cycle, there are phases, usually short, in which part of the hydraulic cylinders of the drive systems concerned, with ...
Popescu Teodor Costinel   +5 more
doaj   +1 more source

Particle Deposition on a Truncated Cylinder in a Supersonic Flow at Low Pressure [PDF]

open access: yesAerosol Science and Technology, 1994
Deposition of particles, suspended in supersonic gas flows, onto the impaction plane of a truncated cylinder in low pressure has been studied numerically. The analysis of axisymmetric compressible Navier-Stokes equations was carried out, for a gas phase, by using the lower-upper symmetric Gauss-Seidel (LU-SGS) scheme.
Oh, JJ, Kim, SS Kim, Sang Soo
openaire   +2 more sources

Investigation on the Combustion and Emission Characteristics in a Diesel Engine Fueled with Diesel-Ethanol Blends

open access: yesApplied Sciences, 2022
The aim of this work is to investigate the effects of different diesel–bioethanol blended fuels on combustion, engine performance, and emission characteristics in a four-cylinder common rail direct injection (CRDI) diesel engine according to various ...
Sam Ki Yoon
doaj   +1 more source

Numerical investigation of the real and ideal gap profiles in the calculation of the pressure distortion coefficient and piston fall rate of an LNE 200 MPa pressure balance [PDF]

open access: yes, 2013
This paper aims to investigate, by means of numerical simulation, the effect of gap profiles on the calculation of the pressure distortion coefficient (λ) and the piston fall rate (vf) of two piston-cylinder units used in a Laboratoire National de ...
NOGUERA, Ricardo   +3 more
core   +5 more sources

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