Results 11 to 20 of about 168,544 (309)
Investigations of Exhaust Emissions from Rail Machinery during Track Maintenance Operations
Energies, 2021 The paper presents the investigations of exhaust emissions under actual operation of two rail vehicles: a track geometry vehicle and a clearance vehicle.
Michalina Kamińska +5 more
doaj +1 more source
Optical study of flow and combustion in an HCCI engine with negative valve overlap [PDF]
, 2006 One of the most widely used methods to enable Homogeneous Charge Compression Ignition (HCCI) combustion is using negative valve overlapping to trap a sufficient quantity of hot residual gas. The characteristics of air motion with specially designed valve
Megaritis, T +4 more
core +1 more source
A study of hydrogen fuel impact on compression ignition engine performance
MATEC Web of Conferences, 2018 In this paper, a dual-fuel compression ignition engine test bench is presented. In hydrogen-diesel fuel co-combustion conditions, the engine parameters are determined – performance: effective torque, effective power and mean effective pressure; fuel ...
Dimitrov Evgeni +4 more
doaj +1 more source
Analysis of Passenger Car Emission Factors in RDE Tests
E3S Web of Conferences, 2016 The article presents a study on emission measurements in passenger cars in tests conducted under real traffic conditions – Real Driving Emissions using a Portable Emission Measurement System type of equipment.
Pielecha Jacek +3 more
doaj +1 more source
Energies, 2020 Reynolds-averaged Navier–Stokes (RANS) three-dimensional (3D) computational fluid dynamics (CFD) simulations of gaseous emissions from combustion engines are very demanding due to the complex geometry, the emissions formation mechanisms, and the ...
Stefania Esposito +4 more
doaj +1 more source
Use of Gas Desorption Effect in Injection Systems of Diesel Engines
Energies, 2021 The article presents a concept of improving operation of the engine with the effect of gas desorption from a solution with nucleation of gas bubbles. This concept consists in dissolving gas in diesel fuel until the solution is in equilibrium.
Maciej Bajerlein +2 more
doaj +1 more source
Theoretical limits of scaling-down internal combustion engines [PDF]
, 2011 Small-scale energy conversion devices are being developed for a variety of applications; these include propulsion units for micro aerial vehicles (MAV). The high specific energy of hydrocarbon and hydrogen fuels, as compared to other energy storing means,
Sher, E., Sher, Ilai
core +1 more source
Test Conditions of Diesel Engine Particulate Emission and the Results Obtained
Communications, 2001 In this work, based on experimental results, the effect of four factors of particulate emission measurements were taken into account: the method of determining the exhaust dilution in a diluting tunnel, the ratio of exhaust gases dilution, conditioning ...
Jerzy Cisek +2 more
doaj +1 more source
Experimental study of indicators in small engine for a compact tractor [PDF]
Avtomobilʹnyj Transport (Harʹkov), 2018 Engine selection for a specific type of transport vehicle, configuration and refinement of mathematical models of processes, improvement of engine construction are made based on the results of experimental research.
O.O. Osetrov +2 more
doaj +1 more source
Emission of particulate matter during aircraft landing operation
E3S Web of Conferences, 2016 The article presents the results of studies conducted in the area adjacent to the airport located in Poznan, to determine the impact of aircraft landing operation on the concentration of particulate matter.
Jasiński Remigiusz +2 more
doaj +1 more source