Results 61 to 70 of about 1,080,132 (356)

RESULTS OF CREATING A COMBUSTION CHAMBER MODEL FOR SOLVING AN OPTIMISATION TASKS [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2014
CFD tools were used to investigate the influence of combustion chamber geometrical parameters on the engine performance indexes. A number of geometrical shapes of the combustion chamber are analyzed. The results have proved that there is an impact of the
A. Vrublevskyi, Ye. Hraivoronskyi
doaj  

Investigate Chemical Effects of Pre-Chamber Combustion Products on Main Chamber Ignition Performance under an Ultra-Lean Condition

, 2020
Pre-chamber ignition systems are considered as an effective technique to achieve an ultra-lean burn combustion. Hot combustion products and flames generated from pre-chamber combustion create high-speed turbulent jets, which ignite an ultra-lean mixture ...
Tang, Wenxian, Sarathy, Mani, Wenxian Tang, Mani Sarathy   +3 more
core   +1 more source

Corals and Reef‐Dwelling Fish Regulate Carbon Storage and Cycling Processes in Coral Reef Ecosystems

Advanced Science, EarlyView.
Coral reefs are biodiversity hotspots, yet their role in carbon storage and cycling remains poorly understood. Using field surveys and modeling in the South China Sea, we reveal the overlooked potential of carbon storage in reef ecosystems and how reef fish, corals, and surface sediment jointly shape reef carbon reservoirs.
Yiting Chen, Wenliang Zhou, Lan Qiu, Han Lai, Mingpan Huang, Qian Li, Wen Yu, Pei‐Yuan Qian, Fuwen Wei   +8 more
wiley   +1 more source

Advanced Numerical Analysis of In-Cylinder Combustion and NO_x Formation Using Different Chamber Geometries

Fire
In diesel engines, emission formation inside the combustion chamber is a complex phenomenon. The combustion events inside the chamber occur in microseconds, affecting the overall engine performance and emissions characteristics.
Arun Teja Doppalapudi, Abul Kalam Azad
doaj   +1 more source

Analysis of Product and Temperature of Biogas Combustion in Various Air Biogas Equivalence Ratio and Methane Content

Indonesian Journal of Chemistry, 2018
Biogas resulted from anaerobic digestion of organic compounds have various methane content depend on the type of the degraded material. The methane content of biogas is range between 40–80% that influence the heating value and combustion characteristic ...
Arini Wresta, Aep Saepudin
doaj   +1 more source

Converting an automobile turbocharger into a micro gas turbine [PDF]

E3S Web of Conferences, 2019
A low cost micro turbojet made by using an automobile turbocharger and other automobile components for research is presented in this paper. The machine comprises mainly of three main assemblies, the compressor & turbine assembly, the combustion chamber ...
Butt M Usman
doaj   +1 more source

Effect of Pre-Chamber Enrichment on Lean Burn Pre-Chamber Spark Ignition Combustion Concept with a Narrow-Throat Geometry

, 2020
Pre-chamber spark ignition (PCSI) combustion is an emerging lean-burn combustion mode capable of extending the lean operation limit of an engine. The favorable characteristic of short combustion duration at the lean condition of PCSI results in high ...
Echeverri Marquez, Manuel Alejandro, Bengt Johansson, Cenker, Emre, Ponnya Hlaing, Emre Cenker, Hlaing, Ponnya, Eshan Singh, Fahad Almatrafi, Almatrafi, Fahad A., Manuel Echeverri Marquez, Singh, Eshan, Ben Houidi, Moez, Johansson, Bengt, Moez Ben Houidi   +13 more
core   +1 more source

Cigarette Smoke‐Induced Alveolar Macrophage Senescence via GEM/SIRT3‐Mediated Mitochondrial Dysfunction

Advanced Science, EarlyView.
Cigarette smoke accelerates the aging of immune cells in the lung. By combining human single‐cell sequencing, cell culture, and mouse models, the authors show that the protein GEM drives mitochondrial damage and senescence in alveolar macrophages by suppressing SIRT3.
Jin Wang, Meidan Wei, Xiangrong Song, Jiaxin Zhang, Lisha Zhang, Sixian Chen, Yaoyu Hu, Hui Gao, Jianxiang Li   +8 more
wiley   +1 more source

Acoustoelastic Interaction in Combustion Chambers: Modeling and Experiments

Journal of Engineering for Gas Turbines and Power, 2008
To decrease NOx emissions from combustion systems, lean premixed combustion is used. A disadvantage is the higher sensitivity to combustion instabilities, leading to increased sound pressure levels in the combustor and resulting in an increased excitation of the surrounding structure: the liner.
Huls, R.A., van Kampen, J.F., van der Hoogt, P.J.M., Kok, J.B.W., de Boer, A.   +4 more
openaire   +2 more sources

Optical diagnostics on the pre-chamber jet and main chamber ignition in the active pre-chamber combustion (PCC)

, 2020
We studied the relationship between pre-chamber jet and main chamber ignition in the pre-chamber combustion (PCC) of an optical engine, fueled with methane and equipped with an active pre-chamber with two rows of orifices.
Chang, Junseok, Sharma, Priybrat, Cenker, Emre, Tang, Qinglong, Marquez, Manuel Echeverri, Hlaing, Ponnya, Ben Houidi, Moez, Johansson, Bengt, Sampath, Ramgopal, Magnotti, Gaetano   +9 more
core   +1 more source