Numerical Study on the Required Surrounding Gas Conditions for Stable Autoignition of an Ethanol Spray
المؤلفون المشاركون
Saitoh, Hironori
Uchida, Koji
Watanabe, Norihiko
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-10-17
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
This study deals with the development of controlled-ignition technology for high-performance compression ignition alcohol engines.
Among the alcohol fuels, we focus on ethanol as it is a promising candidate of alternative fuels replacing petroleum.
The objective of this study is to reveal the physical and chemical phenomena in the mixture formation process up to autoignition of an ethanol spray.
In our previous numerical study, we showed the mixture formation process for gas oil and ethanol sprays in the form of spatial excess air ratio and temperature distributions inside a spray and their temporal histories from fuel injection.
The results showed a good agreement with those of theoretical analysis based on the momentum theory of spray penetration.
Calculation was also confirmed as reasonable by comparing to the experimental results.
Through the series of our experimental and numerical studies, the reason for poor autoignition quality of an ethanol spray was revealed, that is, difficulty in simultaneous attainments of autoignition-suitable concentration and temperature in the spray mixture formation due to its fuel and thermal properties of smaller stoichiometric air-fuel ratio and much greater heat of evaporation compared to conventional diesel fuels.
However, autoignition of an ethanol spray has not been obtained yet in either experiments or numerical analysis.
As the next step, we numerically examined several surrounding gas pressure and temperature conditions to make clear the surrounding gas conditions enough to obtain stable autoignition.
One of the commercial CFD codes CONVERGE was used in the computational calculation with the considerations of turbulence, atomization, evaporation, and detailed chemical reaction.
Required surrounding gas pressure and temperature for stable autoignition with acceptable ignition delay of an ethanol spray and feasibility of the development of high-performance compression ignition alcohol engines are discussed in this paper.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Saitoh, Hironori& Uchida, Koji& Watanabe, Norihiko. 2019. Numerical Study on the Required Surrounding Gas Conditions for Stable Autoignition of an Ethanol Spray. Journal of Combustion،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1170387
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Saitoh, Hironori…[et al.]. Numerical Study on the Required Surrounding Gas Conditions for Stable Autoignition of an Ethanol Spray. Journal of Combustion No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1170387
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Saitoh, Hironori& Uchida, Koji& Watanabe, Norihiko. Numerical Study on the Required Surrounding Gas Conditions for Stable Autoignition of an Ethanol Spray. Journal of Combustion. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1170387
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1170387
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر