...Zhezi Zhang; Mingming Zhu; Jianbo Li; Kai Zhang; Guoqing Shen; Gang Xu; Xianchun Li; Dongke Zhang In this study, the ignition and combustion behavior of raw and heat-treated single particles of lignite were experimentally investigated, with a focus on the effect of heat treatment temperatures...

...Hailin Li; W. Stuart Neill; Hongsheng Guo; Wally Chippior This paper presents the oxides of nitrogen (NO x ) and nitrous oxide (N 2 O) emission characteristics of a Cooperative Fuel Research (CFR) engine modified to operate in homogeneous charge compression ignition (HCCI) combustion mode. N...

...A. J. Sequera; R. N. Parthasarathy; S. R. Gollahalli Methyl and ethyl esters of vegetable oils have become an important source of renewable energy with convenient applications in compression-ignition (CI) engines. While the use of biofuels results in a reduction of CO, particulate matter...

...Joel Martinez-Frias; Salvador M. Aceves; Daniel L. Flowers Homogeneous charge compression ignition (HCCI) is a new engine technology with fundamental differences over conventional engines. HCCI engines are intrinsically fuel flexible and can run on low-grade fuels as long as the fuel can be heated...

... deg . The outcome shows better performance and less emission by the fuel 50D:50E at 24 deg injection angle (IA). Further, ignition delay, maximum heat release, and peak combustion pressure tests have been conducted. These results show that increase in IA decreases the delay period, thus increasing...

... delay to ignition due to the drying of fuel. The effect of fuel moisture on drying and heating up of the fuel is the key feature for the investigation done in this work. Radiation heat transfer between the gas, the bagasse particle stream, and the furnace walls is modeled by P1 model similar...

...S. O. Bade Shrestha; Ghazi A. Karim The operation of engines whether spark ignition or compression ignition on a wide range of alternative gaseous fuels when using lean mixtures can offer in principle distinct advantages. These include better economy, reduced emissions, and improved engine...

...Salvador M. Aceves; Joel Martinez-Frias; Gordon M. Reistad This paper presents an evaluation of the applicability of homogeneous charge compression ignition (HCCI) engines for small-scale cogeneration ( < 1 MWe ) in comparison to five previously analyzed prime movers. The five comparator prime...

... be generated in situ as obtained from the spontaneous ignition of oil when air is injected into a high temperature reservoir, or injected directly into the reservoir from some surface source. When operating at high pressures commonly found in deep light oil reservoirs, the flue gas may become miscible or near...

... using natural gas as the primary energy source. Hydrogen spark ignition, all-electric battery-powered, and methanol fuel cell vehicles rank lowest in well-to-wheel efficiency because of their poor fuel production efficiencies. The authors would like to thank Dr. Frank Stodolsky, Dr. Linda Gaines...

...S. Gouli; A. Serdari; S. Stournas; E. Lois This paper describes some of the recent work carried out in our laboratory regarding the effects of novel nitrogen compounds in gasoline and diesel fuel on ignition quality and on pollutant emissions. Emphasis is given in studying chemical structures...

...O. Piepers; P. P. Breithaupt; A. B. N. van Beelen Stabilization of the combustion of natural gas in high-temperature processes by using the auto-ignition of the fuel when mixed with highly preheated air is well known and has found application on many occasions. Reasonably strong internal flue gas...

...Masayuki Taniguchi; Hirofumi Okazaki; Hironobu Kobayashi; Shigeru Azuhata; Hiroshi Miyadera; Hidetaka Muto; Toshikazu Tsumura Pyrolysis and ignition characteristics of pulverized coals were examined under similar burning conditions to those of industrial burners. In the early stage, fine particles...

...Atsushi Makino Relevant to the self-propagating high-temperature synthesis (SHS) process, an analytical study has been made to investigate dependence of its flame initiation on system parameters, such as operating and physicochemical parameters, in order to obtain ignition energy. Use has been made...