دانلود رایگان مقاله لاتین اتانول گرم از سایت الزویر
عنوان فارسی مقاله:
اثر اتانول گرم در مقاوم سازی عملکرد تک حفره بنزین انژکتور
عنوان انگلیسی مقاله:
Effects of heated ethanol on retrofit single-hole gasoline injector performance
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Nowadays, fuel injection systems for gasoline engines such as port fuel injection and direct injection have been widely used with electronic control unit due to its feedback control to conform to worldwide emission regulations [1]. Some car owners require their obsolete car models to use with current alternative fuels such as alcohol-gasoline blends e.g. E85 (85% ethanol and 15% gasoline). Up to date, pure ethanol has been introduced to the market that necessitates advanced technologies for fueling at a cost. Therefore, some retrofit cars require further calibration for using these alcohol based fuels. In addition, surrounding heat nearby the intake manifold can affect alcohol based fuels prior to inducting into the engine combustion chamber. Extensive studies are therefore focusing on injection characteristics of neat alcohol or alcohol-gasoline blended fuels. Zhang and Hung [2] investigated the transient fuel spray characteristics from a multi-hole injector by analyzing dimensionless parameters. The temporal development of spray penetration and cone angle of ethanol, methanol and gasoline were analyzed using a Planar Mie scattering to generate spray images. In the first stage, the spray penetration increases linearly with time after the start of injection. During the developed stage, the effect of aerodynamic forces becomes more influential on the spray penetration.For gasoline direct injection engines, Chen and Nishida [3] studied the spray evaporation and combustion of ethanolgasoline blends (E0, E85, and E100) injected by hole-type nozzle. The tests in a high-temperature and high-pressure quiescent constant volume vessel equipped with a dual-wavelength laser absorption scattering technique were investigated. Ethanol evaporates faster than gasoline while the combustion becomes more vigorous due to the oxygen content in ethanol. Furthermore, the ethanol-gasoline blends improved combustion stability particularly when advancing the ignition timing. Under hot fuel conditions, Aleiferis and van Romunde [4] analyzed the spray development of iso-octane, n-pentane, gasoline, ethanol and n-butanol from a high-pressure multi-hole injector for direct-injection spark-ignition engines. This work used an optical high-speed imaging and droplet sizing investigation to outline the effects of fuel properties, temperature and pressure on spray formation. The tests were at 20, 50, 90 and 120 °C injector body temperatures for ambient pressures of 0.5 bar and 1.0 bar. Some key physical properties were obtained from their analysis. Anand et al. [5] reported the measured spray structure and droplet size distributions of ethanol-gasoline blends for a low-pressure multi-hole port fuel injector. Specimens i.e. gasoline, ethanol, and their blends were studied at 0.25 MPa and 0.6 MPa using laser backlight imaging. The development and droplet sizes of gasoline and ethanol sprays have similar characteristics. Interaction of multiple fuel jets is insensitive to the viscosity. Subsequently, there are some other aspects that have not been studied concerning ethanol injection with elevated temperature. The main aim of this work is to study the injection characteristics when injecting the heated ethanol in terms of mass fuel flow rate and discharge coefficient under the fuel temperature range of 40–80 °C with injection pressure variation in the range of 0.2–0.4 MPa.
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کلمات کلیدی:
Effects of heated ethanol on retrofit single-hole gasoline injector ... www.ndsl.kr/ndsl/search/detail/.../articleSearchResultDetail.do?cn... - Translate this page Effects of heated ethanol on retrofit single-hole gasoline injector performance. Chuepeng, Sathaporn 관련메뉴 ;. 원문보기. 원문보기. 무료다운로드, 유료다운로드 ... Effects of heated ethanol on retrofit single-hole gasoline ... - INFONA https://www.infona.pl/.../bwmeta1.element.elsevier-47523812-522e-3c54-95ec-c8a784a... by S Chuepeng - 2016 - Related articles When operating at 40°C injection temperature, ethanol delivered greater fuel amounts than gasoline resulting in higher discharge coefficients. The temperatures ... Effects of heated ethanol on retrofit single-hole gasoline ... - KUforest https://research.rdi.ku.ac.th/forest/Publish.aspx?PublishID=19005 - Translate this page Article: Effects of heated ethanol on retrofit single-hole gasoline injector performance; Journal: Case Studies in Thermal Engineering (ISSN: 2214157X); Volume ... Dr pirun.ku.ac.th/~srcspc/?id=12 Chuepeng, S. (2016) Effects of heated ethanol on retrofit single-hole gasoline injector performance. Case Studies in Thermal Engineering, Vol. 8, pp. 245–249. Recent Case Studies in Thermal Engineering Articles - Elsevier https://www.journals.elsevier.com/case-studies-in-thermal.../recent-articles May 9, 2017 - This study presents exergy analysis for forced convection heat .... Effects of heated ethanol on retrofit single-hole gasoline injector performance. How To Convert Your Gasoline Engine Into Ethyl Alcohol Engine www.survival-manual.com/gas-to-alcohol-conversion.php This holes diameter directly affects how rich or lean the air/fuel mixture will be ... a pair of needle-nose pliers, and an electric hand drill with bits obviously. ... going to end up with an engine that doesn't run.. on alcohol OR gasoline. ... Hold the jet with your vise-grips or in a vice if you have one and bore out its central hole. Sathaporn Chuepeng - Google Scholar Citations https://scholar.google.com/citations?user=Zb6bAfcAAAAJ&hl=en Kasetsart University, Department of Mechanical Engineering - eng.src.ku.ac.th Particulate matter size distribution in the exhaust gas of a modern diesel engine ... Effects of heated ethanol on retrofit single-hole gasoline injector performance.
