Results 1 to 10 of about 6,203 (293)

Research on the Influence of Tip Clearance of Axial-Flow Pump on Energy Characteristics under Pump and Turbine Conditions

open access: yesMachines, 2022
In order to study the influence of tip clearance on the performance and energy dissipation of the axial-flow pump and the axial-flow pump as a turbine, and find the location of high dissipation rate, this study took an axial-flow pump model as its ...
Yanjun Li   +4 more
doaj   +3 more sources

Numerical Analysis of Flow Characteristics in Impeller-Guide Vane Hydraulic Coupling Zone of an Axial-Flow Pump as Turbine Device

open access: yesJournal of Marine Science and Engineering, 2023
An axial-flow pump as a turbine (PAT), as compared to the conventional Francis turbine, has the advantages of not being restricted by the terrain and having lower cost to reverse the pump as a turbine for power generation.
Fan Yang   +5 more
doaj   +3 more sources

Modeling of Turbine Engine Axial-Flow Compressor and Turbine Characteristics

open access: yesJournal of Propulsion and Power, 2000
The paper describes the concept of modeling the turbine engine axial-flow compressor and turbine characteristics by using the function of two variables. Accuracy of the proposed concept has been verified on the example of the given compressor and turbine characteristics.
Marek Orkisz
exaly   +3 more sources

Preliminary Design of an Axial-Flow Turbine for Small-Scale Supercritical Organic Rankine Cycle

open access: yesEnergies, 2021
A small-scale organic Rankine cycle (ORC) with kW-class power output has a wide application prospect in industrial low-grade energy utilization. Increasing the expansion pressure ratio of small-scale ORC is an effective approach to improve the energy ...
Ningjian Peng   +2 more
doaj   +1 more source

Studying the effects of using nano-materials treated glass openings : A scale model case study [PDF]

open access: yesJournal of Engineering Science and Military Technologies, 2018
Nanotechnology is considered a modern science based on changing the physical specifications of materials. Is a nanometer-sized material called nano-materials based on the science of atoms and molecules where it is integrated with physics, chemistry and ...
Mahmoud Zaki, Hosny Dewer, Rasha Dabaon
doaj   +1 more source

Automated axial flow turbine design with performance prediction [PDF]

open access: yesJournal of Engineering Science and Military Technologies, 2018
This paper describes the automation of preliminary 3D aerothermodynamic design and analysis of a single-stage axial flow turbine driving the compressor of the micro turbojet engine Jet Cat p200 using an analytical method.
Nader Elqussas   +3 more
doaj   +1 more source

Computed Effect of Varying Tip Clearance and Axial Gap on Gas Turbine Stage Performance Part (I): (Steady Flow) [PDF]

open access: yesThe Egyptian International Journal of Engineering Sciences and Technology, 2016
turbine, imprecise axial gap and tip clearance are two significant sources ofinefficiency. This work investigates the effect of change in parameters such asaxial gap and tip clearance on axial flow gas turbine used in power generation.Different ...
M Gobran, M Nassief, M Shaalan, W Elwan
doaj   +1 more source

Performance enhancement of three-stage axial turbine for Clean Organic Rankine Cycle system driven by low-temperature heat source

open access: yesCleaner Engineering and Technology, 2021
High performances of Organic Rankine Cycle (ORC) system are widely used in various industrial applications. Axial flow turbine at low temperature heat source is of major importance in some processes.
T.T. Naas   +7 more
doaj   +1 more source

Influence of Axial Installation Deviation on the Hydraulic Axial Force of the 1000 MW Francis Runner in the Rated Operating Condition

open access: yesEnergies, 2023
To study the influence of the axial installation deviation of the runner on the hydraulic axial force of the 1000 MW Francis turbine unit, geometric models of the full flow passage of the Francis turbine with the runner sinking in the axial direction by ...
Yongsheng Liu   +6 more
doaj   +1 more source

Numerical Investigation of the Hub-Seal Mass Flow Rate Effect on the Axial Turbine Stage Efficiency [PDF]

open access: yesEPJ Web of Conferences, 2019
The contribution deals with numerical simulation of compressible flow through the axial turbine stage equipped with the hub-seal. The current flowing from the hub-seal has a major impact on the secondary flow in the hub-region of the blade span.
Straka Petr
doaj   +1 more source

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