Results 21 to 30 of about 4,697 (226)
Theoretical limits of scaling-down internal combustion engines [PDF]
, 2010 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, I. Sher, E. Sher
core +1 more source
International Journal of Sustainable Engineering, 2021 Experimental tests were performed on homogeneous charge compression ignition (HCCI) with in-cylinder direct injection (DI) of diesel, biodiesel of Ceiba Pentandra oil methyl ester (CPOME) and biodiesel of Acid oil methyl ester (ACOME).
Nagesh S.B. +3 more
doaj +1 more source
Insulin Out-of-Pocket Spending Caps and Employer-Sponsored Insurance: Changes in Out-of-Pocket and Total Costs for Insulin and Healthcare. [PDF]
Health Serv ResABSTRACT Objective To estimate the impact of state‐level insulin out‐of‐pocket caps on changes in out‐of‐pocket and total costs of insulin and healthcare for insulin users with employer‐sponsored insurance. Study Setting and Design We evaluated changes in costs using a quasi‐experimental (triple difference‐in‐differences; “DDD”) design to analyze multi‐
Baig KA +4 more
europepmc +2 more sources
Energy Reports, 2019 Homogeneous charge compression ignition (HCCI) engines have high efficiency and lower NOx-soot emissions than diesel and gasoline engines. However, these engines suffer from high HC, CO and unregulated emissions and combustion phasing control.
V.D. Chaudhari, D. Deshmukh
doaj +1 more source
Boosting for High Load HCCI [PDF]
SAE Technical Paper Series, 2004 <div class="htmlview paragraph">Homogeneous Charge Compression Ignition (HCCI) holds great promises for good fuel economy and low emissions of NO<sub>X</sub> and soot. The concept of HCCI is premixed combustion of a highly diluted mixture.
Olsson, Jan-Ola +2 more
openaire +1 more source
Comparison of Ignition Control Techniques in HCCI Engines from Theoretical and Practical Perspectives [PDF]
E3S Web of ConferencesHomogeneous Charge Compression Ignition (HCCI) is a cutting-edge combustion engine technology that merges the benefits of both diesel and gasoline engines. In HCCI engines, a uniform mixture of fuel and air enters the combustion chamber during the intake
Yang Jiaqi
doaj +1 more source
Influence of Niobium Addition on Microstructure and Machinability of High Chromium Cast Iron
Materials Research, 2021 High Chromium Cast Iron (HCCI) is mostly utilised in environments under severe abrasion and corrosion wear conditions, and research on this material with added niobium obtained positive results regarding wear resistance.
Anderson Edson da Silva +3 more
doaj +1 more source
Study on Combustion Chamber Geometry Effects in an HCCI Engine using High-Speed Cycle-Resolved Chemiluminescence Imaging [PDF]
, 2007 The aim of this study is to see how geometry generated turbulence affects the Rate of Heat Release (ROHR) in an HCCI engine. HCCI combustion is limited in load due to high peak pressures and too fast combustion.
Andreas Vressner +6 more
core +1 more source
Combination of multiple combustion modes in a gas engine system using dedicated EGR
Nihon Kikai Gakkai ronbunshu, 2019 Although HCCI combustion has high thermal efficiency, it has difficulties such as controlling its ignition timing and combustion. This study proposed a method to make HCCI combustion in gas engines possible, combining dedicated EGR, SI combustion, and ...
Tomoaki TAKEUCHI +3 more
doaj +1 more source
Communications, 2022 This work experimentally investigates the most imperative parameters that control the injection and combustion processes in a multi-injection HCCI Diesel engine namely; fuel-line pressure, timing of multi-injection events and the resulting in-cylinder ...
Waleed Niklawy +3 more
doaj +1 more source