Results 1 to 10 of about 54,589 (315)
Head-Jaw Position in Premature and Injector Feeding Method [PDF]
Iranian Journal of NeonatologyBackground: The aim was to determine the benefits of the head-jaw position given to the premature during feeding with the injector.Methods: In this experimental study, the effect of head-chin position on the prematures on the length of stay in the ...
Selver Guler, Melike Yavas Çelik
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Engagement and Contact Analysis of Coiled Tubing Injector Head Chain Drive
Jixie chuandong, 2023 The coiled tubing injector head is the core component of the coiled tubing oil and gas well operation equipment, which directly determines the coiled tubing operation capability, and its chain drive system pulls the coiled tubing in or out the wellbore ...
Hu Zheng +3 more
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Optimization of Marine Medium Speed Diesel Engine Performance based on Multi-Injector System [PDF]
E3S Web of Conferences, 2021 Multi-injector system is potential to improve thermal efficiency and NOx emission of diesel engine at the same time. In order to optimize the combustion and emission of Marine medium speed diesel engine, the engine combustion with a multi-injector system
Liu Dai +4 more
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Numerical Investigation of Nozzle Jet Flow in a Pelton Microturbine
Machines, 2021 The characterization of flow through Pelton hydro turbines allows the optimization of their operation and maximization of energy performance. The flow in the injector of Pelton turbines and in the free jet area (the area from the injector outlet surface ...
Dorian Nedelcu +2 more
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Aerospace, 2023 A three-dimensional upwind conservation element and solution element method (CESE) in cylindrical coordinates is first developed to effectively solve the unsteady reactive Euler equations governing a hydrogen–air rotating detonation engine (RDE) with ...
Lisong Shi +5 more
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Geometry and head loss in Venturi injectors through computational fluid dynamics [PDF]
Engenharia Agrícola, 2016 ABSTRACT To determine the influence of geometry on the hydrodynamic behavior of Venturi injectors, using computational fluid dynamics techniques, we studied, at the Universitat Politècnica de València, Valencia, Spain, the geometric parameters that exert the most influence on head losses: the relationship between throat diameter and nozzle (β), nozzle ...
Manzano, Juan +4 more
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International Journal of Turbomachinery, Propulsion and Power, 2020 Injection pattern of the oxidizer injected into the combustion chamber is a significant factor in evaluating the performance of a hybrid rocket. In the hybrid rocket combustion process, oxidizer flows over the solid fuel grain surface, leading to a ...
Pragya Berwal, Shelly Biswas
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Experimental Investigation of Flame Anchoring Behavior in a LOX/LNG Rocket Combustor
Aerospace, 2023 Hot fire tests of a multi-injector research combustor were performed with liquid-oxygen and liquefied-natural-gas (LOX/LNG) propellants at chamber pressures from 30 up to 67 bar, hence at conditions similar to an upper stage rocket engine.
Jan Martin +4 more
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Parametric Investigation of Pelton Turbine Injector under Hydro-abrasive Erosion Conditions [PDF]
Journal of Applied Fluid Mechanics, 2023 In high-head Pelton turbines, the injector faces severe erosion due to suspended sediment leading to a reduction in turbine efficiency and higher maintenance costs.
N. Shrivastava, A. K. Rai
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Engineering Science and Technology, an International Journal, 2021 Water injection is one of the promising strategies for modern downsized GDI engines to meet performance and emission requirements under wide operating conditions.
Ankit A. Raut, J.M. Mallikarjuna
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