Results 41 to 50 of about 4,491 (262)
Lean-burn-kaasumoottoreiden päästöjen minimointi voimantuotannossa
, 1997 Tavoitteena oli kehittää takaisinkytketty seoksensäätöjärjestelmä yhdistetyn lämmön- ja sähköntuotantolaitoksen (CGP) laihaseoskaasumoottoria varten. Työssä käytettiin Sisu Dieselin valmistamaa ja Valtion teknillisessä tutkimuskeskuksessa laihaseoskäyttöiseksi kehitettyä, 7,4-litraista, kipinäsytytteistä, avoimella palo-tilalla varustettua Valmet 634 ...
Kytö Matti +2 more
+7 more sources
Investigations of a Gas Turbine Low-Emission Combustor Operating on the Synthesis Gas
International Journal of Chemical Engineering, 2017 Investigations of the working processes in a gas turbine low-emission combustor operating on the synthesis gas, in which the principle of RQL (Rich-Burn, Quick-Mix, and Lean-Burn) combustion technology is realized, have been performed.
Serhiy Serbin, Nataliia Goncharova
doaj +1 more source
Archive of Mechanical Engineering, 2016 The need to reduce pollutant emissions leads the engineers to design new aeronautic combustors characterized by lean burn at relatively low temperatures.
Amoroso Francesco +3 more
doaj +1 more source
Excess Air Ratio Management in a Diesel Engine with Exhaust Backpressure Compensation
Sensors, 2020 The paper investigates the operation of a wideband universal exhaust gas oxygen (UEGO) sensor in a diesel engine under elevated exhaust backpressure. Although UEGO sensors provide the excess air ratio feedback signal primarily in spark ignition engines ...
Piotr Kasprzyk +4 more
doaj +1 more source
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
On Lean Turbulent Combustion Modeling [PDF]
INCAS Bulletin, 2014 This paper investigates a lean methane-air flame with different chemical reaction mechanisms, for laminar and turbulent combustion, approached as one and bi-dimensional problem.
Constantin LEVENTIU, Sterian DANAILA
doaj +1 more source
Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC
Advanced Engineering Materials, EarlyView.ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert +6 more
wiley +1 more source