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Viewing 1 to 30 of 5618
2017-04-04
Event
This session explores advances in the creation of sustainable energy sources and their usage in the transportation sector. Topics can include research and in-production technology used to produce renewable energy sources and materials. A discussion on lifecycle analysis of the energy sources is also highly recommended. The SDPC encourages usage of papers, presentations, and panels in this session to display leading edge technologies and practical tools for engineers.
2017-04-04
Event
This session focuses on fuel injection, combustion, controls, performance and emissions of SI engines fueled with gaseous fuels such as methane, natural gas (NG), biogas, producer gas, coke oven gas, hydrogen, or hydrogen-NG blends. Papers on Diesel-NG or diesel-hydrogen dual-fuel engines will also be accepted in this session.
2017-04-04
Event
This session includes four papers related to spark-ignition engines and their fuels and five papers related to the processes of compression ignition combustion of different fuels.
2017-04-04
Event
This session covers fuel cell advances from vehicle manufacturers in the first stage of series production FCEVs. In addition, there are modeling studies and evaluation of components mainly in PEM fuel cell systems, hydrogen storage and hydrogen fueling.
2016-11-17
Event
This session includes papers focused on the gaseous and particulate emissions performance from operating small engines, both diesel and gasoline on oxygenated fuel blends.
2016-11-08
Technical Paper
2016-32-0011
Keito Agui, Hirotaka Suzuki, Yuki Takamura, Akira Iijima, Hideo Shoji
This study focused on Homogeneous Charge Compression Ignition (HCCI) combustion, which is regarded both in Japan and abroad as a promising combustion system for achieving highly efficient and clean internal combustion engines. With HCCI combustion, the premixed mixture of fuel and air supplied to the cylinder is autoignited by piston compression. Because a lean premixed mixture is burned in HCCI combustion, emissions of nitrogen oxides (NOx) and particulate matter (PM) can be reduced simultaneously. Moreover, an HCCI system enables the engine to achieve higher thermal efficiency because it can operate stably at a sufficiently high compression ratio in a lean premixed combustion regime induced by autoignition. However, HCCI combustion has formidable unresolved issues. One is the difficulty of controlling the ignition timing owing to a lack of a physical means of igniting the mixture.
2016-11-08
Technical Paper
2016-32-0055
Carlos Alberto Romero, Luz Adriana Mejia, Yamid Carranza
A Design of experiments methodology was carried out to investigate the effects of compression ratio, cylinder head material, and fuel composition on the engine speed, fuel consumption, warm-up time, and emissions of a carbureted single cylinder air-cooled spark ignited engine. The work presented here is aimed at finding out the sensitivity of engine responses, as well as the optimal combination among the aforementioned parameters. To accomplish this task two cylinder heads, one made of aluminum and the second one of cast iron, were manufactured; an antechamber-type adapter for the spark plug to modify the combustion chamber volume was used, and two ethanol/gasoline blends containing 10 and 20 volume percent ethanol were prepared. Engine performance was evaluated based on the changes in engine speed at idle conditions. Regarding the exhaust gas emissions, the concentrations of CO2, CO, and HC were recorded.
2016-11-08
Technical Paper
2016-32-0056
Qi-Jun Huang, Chia-Hong Chung, Yong-Fu Syu, Yuh-Yih Wu, Chao-Kai Li
Butanol is deemed as a potential alternative fuel for motor vehicle, but there are few studies about applying butanol in engine combustion. This paper focuses on application of butanol-gasoline blend fuel on scooter engine. In this research, different volume percentage of butanol-gasoline blend fuel, B10, B20, B40, B60, B80 and B100 are applied on 125cc scooter engine to conduct engine experiment, and higher than B60 blended fuel is declared as high concentration of butanol blended fuel. The test conditions are set at 4000 and 6000rpm under partial load and full load. After executing engine experiment, the engine performance, brake specific fuel consumption (BSFC), emissions and combustion analysis are discussed. Furthermore, viscosity and fuel spray test are carried out with high concentration of butanol. The engine experimental result shows that B20 fuels can increase engine performance under engine 4000 and 6000rpm.
2016-11-08
Technical Paper
2016-32-0014
Amnon Eyal, Leonid Tartakovsky
This study examines the possibility of using methanol reforming products to feed a Homogenous charge compression ignition (HCCI) engine. By changing the composition of these products, one can manage the HCCI combustion process. These products are produced in an on-board reformer, which utilizes the energy of the exhaust gases to sustain endothermic reactions. The reactions include, in series, first dehydration of methanol to Dimethyl-Ether (DME) and H2O with support of γ-Al2O3 catalyst, and then a methanol steam reforming (SRM) process with support of a CuO/ZnO/Al2O¬3 catalyst. The two processes are separated from each other, i.e. in the first section only methanol dehydration occurs and in the second section only SRM process occurs. This is made possible due to the specific catalysts that were chosen. The DME, which is produced in the dehydration process, does not take a part in the SRM process.
2016-11-08
Technical Paper
2016-32-0075
Srikanth Setlur, Satish Vemuri, Chithambaram Subramoniam, Rahul Sharma
The effect of ethanol blended gasoline fuels on Vehicular mass emissions was investigated on a spark ignited single cylinder Closed Loop fuel injected vehicle complying Euro III emission norms. Fuels blended with 10(E10) & 20(E10) percentage by volume of ethanol were taken up to study their effect on vehicular mass emissions on World Harmonized Motorcycle Test Cycle (WMTC) without any modification to the vehicle. The cycle is a simulation of real world driving conditions. In WMTC Cycle, maximum CO emissions were obtained with E10 fuel which showed an increase of 13%. THC emissions decreased by 10% and NOx emissions remained the same when the ethanol blend increases. Fuel economy decreases by 5% with use of E20 on the cycle.
2016-11-08
Technical Paper
2016-32-0076
Rahul Sharma, Srikanth Setlur, Satish Vemuri, Chithambaram Subramoniam
The effect of ethanol blended gasoline fuels on vehicle emissions was investigated in a spark ignited single cylinder carbureted vehicle meeting Bharat Stage III (BS III) emission norms. The effect of fuel blended with 10(E10) & 20(E20) percentage by volume of ethanol; was studied on vehicular mass emissions on World Harmonized Motorcycle Test Cycle (WMTC) as well as on Indian drive cycle (IDC) without any modifications on the vehicle. These cycles are simulation of real world driving conditions. The addition of ethanol to gasoline fuel enhances the octane number of the blended fuels and increases leaning effect. It has been observed on IDC that addition of ethanol reduces CO up to 41%, THC emissions decreases by 9% and NOx reduces up to 12%. In WMTC Cycle, the CO reduces up to 32%, THC emission increases by 30%. NOx emissions on WMTC cycle decrease with the use of E10 by 6% while increase with the use of E20 by 7%.
2016-11-08
Journal Article
2016-32-0072
Fino Scholl, Paul Gerisch, Denis Neher, Maurice Kettner, Thorsten Langhorst, Thomas Koch, Markus Klaissle
One promising alternative for meeting stringent NOx limits while attaining high engine efficiency in lean-burn operation are NOx storage catalysts (NSC), an established technology in passenger car aftertreatment systems. For this reason, a NSC system for a stationary single-cylinder CHP gas engine with a rated electric power of 5.5 kW comprising series automotive parts was developed. Main aim of the work presented in this paper was maximising NOx conversion performance and determining the overall potential of NSC aftertreatment with regard to min-NOx operation. The experiments showed that both NOx storage and reduction are highly sensitive to exhaust gas temperature and purge time. While NOx adsorption rate peaks at a NSC inlet temperature of around 290 °C, higher temperatures are beneficial for a fast desorption during the regeneration phase. Combining a relatively large catalyst (1.9 l) with a small exhaust gas mass flow leads to a low space velocity inside the NSC.
2016-11-08
Journal Article
2016-32-0034
Stephan Jandl, Hans-Juergen Schacht, Stephan Schmidt, Ute Dawin, Armin Kölmel, Stefan Leiber
The worldwide increasing energy consumption, the decreasing energy resources and the continuous restriction of emission legislation cause a rethinking in the development of internal combustion engines and fuels. Alternative renewable fuels, so called bio-fuels, have the potential to counteract these problems. This study concentrates on the usage of alcohol fuels like Ethanol, Methanol and Butanol in non-automotive high power engines, handheld power tools and garden equipment with the focus on mixture formation and cold start capability. Although bio-fuels have been investigated intensely for the use in automotive applications, the different propulsion systems and operation scenarios of non-automotive applications raise the need for specific research. Therefore, a zero dimensional vaporization model was set up to illustrate the connections between physical properties and mixture formation.
2016-10-26
Event
This session focuses on work pertaining to the production and fundamental properties of new fuels and methods for assessing their performance. This will include work related to the issues of fuel stability, storage and transportation. Examples include diesel fuel stability, lubricity, cold weather issues, and environmental and toxicological impacts of inclusion of more than 7% biodiesel; the substitution of diesel fuel and gasoline with components other than biodiesel and ethanol respectively.
2016-10-26
Event
This session focuses on fuel injection, combustion, controls, performance and emissions of SI engines fueled with gaseous fuels such as methane, natural gas (NG), biogas, producer gas, coke oven gas, hydrogen, or hydrogen-NG blends. Papers on Diesel-NG or diesel-hydrogen dual-fuel engines will also be accepted in this session.
2016-10-25
Event
This session focuses on work pertaining to the production and fundamental properties of new fuels and methods for assessing their performance. This will include work related to the issues of fuel stability, storage and transportation. Examples include diesel fuel stability, lubricity, cold weather issues, and environmental and toxicological impacts of inclusion of more than 7% biodiesel; the substitution of diesel fuel and gasoline with components other than biodiesel and ethanol respectively.
2016-10-25
Event
This session focuses on work pertaining to the production and fundamental properties of new fuels and methods for assessing their performance. This will include work related to the issues of fuel stability, storage and transportation. Examples include diesel fuel stability, lubricity, cold weather issues, and environmental and toxicological impacts of inclusion of more than 7% biodiesel; the substitution of diesel fuel and gasoline with components other than biodiesel and ethanol respectively.
2016-10-17
Technical Paper
2016-01-2309
Ehsan Ansari, Kamran Poorghasemi, Behrouz Khoshbakht Irdmousa, Mahdi Shahbakhti, Jeffrey Naber
Reactivity controlled compression ignition (RCCI) is a promising dual-fuel low temperature combustion (LTC) mode with significant potential for reducing NOx and particulate emissions while improving or maintaining thermal efficiency compared to conventional diesel engines. The large reactivity difference between diesel and natural gas (NG) fuels provides a strong control knob for phasing and shaping combustion heat release. In this work, the brake thermal efficiencies, emissions and combustion characteristics of a light duty 1.9L, four-cylinder diesel engine operating in single fuel diesel mode and in NG-diesel RCCI mode are investigated and compared. The engine is run at speeds of 1300 to 2500 RPM and loads of 1 to 7 bar BMEP. Operation is limited to 10 bar/deg maximum pressure rise rate and 6% COV of IMEP.
2016-10-17
Technical Paper
2016-01-2254
Karin Munch, Tankai Zhang
Heavy alcohols have properties that are suitable for mixing with fossil diesel and for use as fuel in diesel engines. Alcohols can be produced from fossil resources, but can also be produced in more sustainable ways from renewable raw materials. The use of biofuels can contribute to a decrease of greenhouse gas (GHG) emissions from the transport sector. This study includes four alcohol/diesel blends each with one kind of heavy alcohol. The chosen alcohols are n-butanol, iso-butanol, 2-ethyl hexanol and n-octanol. All the blends where prepared to function as drop-in fuels in existing engines with factory settings. The rather low cetane numbers (CN) of the alcohols have been compensated by adding a third component with high CN, here hydrotreated vegetable oil (HVO) have been used. The mixtures were prepared to have the same CN as diesel fuel.
2016-10-17
Technical Paper
2016-01-2264
Mrinmoy Kalita, M Muralidharan, M Subramanian, M Sithananthan, Anil Yadav, Vivekanand Kagdiyal, Ajay Kumar Sehgal, R Suresh
World energy consumption has increased continuously for decades and expected to grow very fast with rapid economic growth in developing countries. In the current scenario of growing demand for petroleum fuels and highly volatile crude prices, the current usage of petroleum fuel must be curbed to reduce dependence on fossil fuels and to reduce environmental pollution. It is imperative to find an alternative renewable fuel particularly for transportation purpose. Butanol is one of the potential alternative fuels that can be burned in IC engines in the same way as gasoline.
2016-10-17
Technical Paper
2016-01-2260
Mitsuharu Oguma, Mayumi Matsuno, Masayoshi Kaitsuka, Kazuaki Higurashi
Improvement of thermal efficiency is an important problem for internal combustion engines. However, it’s not easy because of trade-off between increasing thermal efficiency and emission reduction. In SI engines, there are some measures to increase thermal efficiency such as high compression combustion, lean combustion, heat recovery, etc. If wasted heat energy from engine system can be reused in the engine system itself, the thermal efficiency can increase totally. Fuel reforming with dehydrogenation reaction by exhaust heat is one of the measures to increase thermal efficiency using hydrogen mixed SI combustion. For this kind engine system, hydrous ethanol has a good potential. Furthermore, when the hydrous ethanol inject to combustion chamber directory, high compression combustion can be achieved by its large amount of latent heat. Therefore, fuel lubricity is an important check point for the hydrous ethanol reforming engine systems.
Viewing 1 to 30 of 5618

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