Results 51 to 60 of about 127,749 (338)

Mean value first principle engine model for predicting dynamic behaviour of two-stroke marine diesel engine in various ship propulsion operations

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2022
Analysis of ship propulsion system performance is often performed using detailed hydrodynamic models to assess load changes, which are subsequently compared to static engine limits, or by detailed engine models that are rarely integrated with ...
Congbiao Sui   +5 more
doaj  

Selected Issues of the Indicating Measurements in a Spark Ignition Engine with an Additional Expansion Process

open access: yesApplied Sciences, 2017
The paper presents the results of research on the turbocharged spark ignition engine with additional exhaust expansion in a separate cylinder, which is commonly known as the five-stroke engine.
Marcin Noga
doaj   +1 more source

A comparative study on mean value modelling of two-stroke marine diesel engine [PDF]

open access: yes, 2009
In the present paper, two mean value modelling approaches of varying complexity, capable of simulating two-stroke marine Diesel engines, are presented. Both approaches were implemented in the computational environment of MATLAB Simulink®. Simulation runs
Theotokatos, Gerasimos
core  

CFD Analysis of 2-Stroke Engines

open access: yesEnergy Procedia, 2015
Abstract1d and 3d CFD simulation is a standard engineering practice on 4-stroke engines. However, the application to the 2-Stroke cycle is not so trivial, in particular the transition from detailed CFD-3d analyses to simplified 1d engine simulations. A first critical issue is the correlation between the instantaneous cylinder gas composition and the ...
openaire   +3 more sources

From Damage to Functionality: Remanufacturing of Thrust Roller Bearings by Tailored Forming

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, the wear and fatigue behavior of repaired bearing raceways with a new powder alloy is investigated using a FE8 test‐rig and an oscillating tribometer. The tests are compared with industrial manufactured bearings to evaluate the repair quality. The repair can extend the service life of the repaired bearing to that of a new bearing and improves ...
Felix Saure   +3 more
wiley   +1 more source

WAYS TO IMPROVE EFFECTIVENESS OF ICE AS POWER UNIT OF CAR HADI-34 [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2013
The results of searching for ways to reduce fuel consumption record car HADI-34 when using a power plant subcompact four-stroke engine are given. Concluded the feasibility of changing the external high-speed performance at throttle-free regulation.The ...
Abramchuk, F.   +3 more
doaj  

The digital simulation of a turbo-charged diesel engine [PDF]

open access: yes, 1969
A mathematical simulation of a six cylinder four stroke water cooled diesel engine is described and then used to study the changes in performance caused by variations of engine paramters and operating conditions.
Hodgetts, D., Shroff, H. D.
core  

One-dimensional simulation of a 4-stroke SI engine employing novel cylinder head concept : intake and exhaust flow investigation [PDF]

open access: yes, 2010
This project investigates the flow characteristic in novel cylinder head at various port size and runner length. Novel cylinder head engine is a design engine that operates in a 4-stroke operational cycle.
Corretgé Bergua, Roser   +1 more
core   +3 more sources

A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?

open access: yesAdvanced Engineering Materials, EarlyView.
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli   +5 more
wiley   +1 more source

A High-Efficiency Two-Stroke Engine Concept: The Boosted Uniflow Scavenged Direct-Injection Gasoline (BUSDIG) Engine with Air Hybrid Operation

open access: yesEngineering, 2019
A novel two-stroke boosted uniflow scavenged direct-injection gasoline (BUSDIG) engine has been proposed and designed in order to achieve aggressive engine downsizing and down-speeding for higher engine performance and efficiency.
Xinyan Wang, Hua Zhao
doaj  

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