... the evaluation of different dilution hole patterns and, thus, the variation of the ratio of primary and secondary air. The study presents temperature, pressure, and emission measurements. It is found that the flame can be operated over a large range of equivalence ratios and preheating temperatures up to 500 °C...

...Jordan Davies; Luca Mazzotta; Daisuke Sato; Syed Mashruk; Daniel Pugh; Domenico Borello; Agustin Valera-Medina Interest in using renewably produced, partially cracked ammonia in gas turbines is gaining traction, but challenges relating to emissions of NO x and unburned ammonia remain. This work...

...Min Xu; Akram Radwan; Yu Xia The optimization of Venturi mixers in burners is critical for enhancing combustion efficiency and minimizing emissions. In this study, we utilize the adjoint method to analyze and refine the design of a Venturi mixer. Our numerical simulations integrate the species...

... such as highly efficient and fuel-flexible operation with low emissions. As an integral part of such a cycle, a humid combustion system was presented previously showing promising results with respect to complete combustion with low emissions for a variety of fuels. The current work introduces an upgraded version...

... the results of Phase 1. The hydrogen burner is based on a swirl-stabilized burner of TUB and was scaled to match the requirements of the mGT with its 130 kW thermal power. The burner design features multiple geometrical parameters to enable the optimization of the flame towards low NO x emissions. Therefore...

... this unconventional concept closer in terms of production viability. Second, there is a lack of systematic studies that assess dilution strategies with both EGR and λ > 1 . Additionally, emissions and knocking issues are hardly studied in the OFC context. Finally, there is the already commented omission...

...Jessica B. Baker; Ramees K. Rahman; Michael Pierro; Jacklyn Higgs; Justin Urso; Cory Kinney; Subith Vasu In recent years, hydrogen-carrying compounds have accrued interest as an alternative to traditional fossil fuels due to their function as zero-emission fuels. As such, there is interest...

...Achinta Sarkar; Ujjwal K. Saha The key challenge of dual fuel mode (DFM) of a compression ignition (CI) diesel engine is to improve the engine performance, and to reduce primarily the carbon monoxide (CO) and unburnt hydrocarbon (HC) emissions. The gaining popularity of DFM lies with its inherent...

... initial investment and calculation costs compared to experimental setup. In this study, a heavy-duty diesel engine effects on performance, combustion, and emission characteristics by spraying natural gas from the intake port and transforming it into a spark-ignition engine were investigated through 3D...

... and power (CHP) system with an electrical power output of 3 kW. The combustor is studied in an optically accessible atmospheric test rig, as well as integrated into the MGT system. This paper focuses on the influence of the admixture of CO 2 to natural gas on the NO x and CO emissions. Furthermore...

...Saeed Izadi; Jan Zanger; Oliver Kislat; Benedict Enderle; Felix Grimm; Peter Kutne; Manfred Aigner As an alternative to the commonly used swirl burners in microgas turbines (MGT), the FLOX ® -based combustion concept promises great potential for the nitric oxide emission reduction and increased...

...Congbo Yin; Quanwei Chen; Zhendong Zhang; Haibing Zhu; Kai Shen The application of exhaust gas recirculation (EGR) technology on gasoline direct injection (GDI) engines can suppress knocking, reduce fuel consumption, and reduce NO x emissions. The effects of EGR with enhanced intake tumble flow...

...%, and BSFC rise of 9% were obtained by adding nitromethane and methanol in small fractions to gasoline. Combustion analysis was carried out using the cylinder pressure trace. High heat release rate and shorter combustion duration with nitromethane addition were observed. Emission measurements showed decrease...

...Sajjad Yousefian; Gilles Bourque; Rory F. D. Monaghan Uncertainty quantification (UQ) is becoming an essential attribute for development of computational tools in gas turbine combustion systems. Prediction of emissions with a variety of gaseous fuels and uncertain conditions requires probabilistic...

... usage. In this context, gas turbines offer a high operational flexibility and a good turn down ratio. In order to guide the design and down select promising solutions for improving partload emissions, a new combustion model based on the assumption of two separate timescales for the fast premixed flame...

... of operation was larger. Calculated emission results also suggested that negligible soot is produced in DME mode operation. 04 06 2009 25 09 2009 07 06 2010 07 06 2010 combustion diesel engines dimethyl ether multizone combustion model emissions performance and modeling...

... of transesterification. In the present investigation, experiments have been carried out to examine the performance, emission, and combustion characteristics of a direct-injection transportation diesel engine running with diesel, 20% blend of rice-bran oil (RBO), and 20% blend of RBOME with mineral diesel. A four-stroke...

.... , and Leipertz , A. , 2000 , “ Application of a New Soot Sensor for Exhaust Emission Control Based on Time Resolved Laser Induced Incandescence (TIRE-LII) ,” Society of Automotive Engineers , SAE Paper No. 2000-01-2864. Halsch , C. , Beck , H. A. , and Niessner , R. , 2004...

...Stephen P. Lukachko; Ian A. Waitz; Richard C. Miake-Lye; Robert C. Brown Aircraft emissions of trace sulfur and nitrogen oxides contribute to the generation of fine volatile particulate matter (PM). Resultant changes to ambient PM concentrations and radiative properties of the atmosphere may...

... both time and money and provides better and additional understanding where the experimental facilities are limited. A spark ignition (SI) engine simulation tool (ISIS) is used in this present study to simulate the performance and emissions of SI engines, operated on alternative fuels such as biogas...