Oxidation and pyrolysis study on different gasoline surrogates in the jet-stirred reactor

الموضوعات

علوم بحتة وطبيعية

الملخص

A better understanding and control of internal combustion engine pollutants require more insightful investigation of gasoline oxidation chemistry. An oxidation study has been done on n-heptane, iso-octane, their binary mixtures (Primary Reference Fuel, (PRF)), and nine hydrocarbon mixtures which represent the second generation of gasoline surrogates (multi-component surrogates).This study aims to develop a better understanding of the combustion reaction by studying the oxidation reaction of different fuels inside a jet-stirred reactor and numerically simulating the reaction using different models under the following conditions: pressure 1 bar, temperature 500-1050K, residence time 1.0 and 2.0s, and two fuel-to-oxygen ratios (ϕ=0.5 and 1.0). Intermediate and product species mole fractions versus temperature profiles were experimentally measured using a GC (gas chromatograph).The experiment was performed within the high and low-temperature regions, where the high-temperature oxidation showed similar behavior for different compositions but the low-temperature oxidation showed significant dependence on the composition of the surrogates. Additionally, the effect of octane number on oxidation chemistry has been investigated and it was found that the low octane number surrogates were more reactive than high octane number surrogates during the low temperature regime. Furthermore, Kinetic analysis was conducted to provide insightful understanding of different factors of fuel reactivity.In addition, the pyrolysis of two TPRF, (Toluene primary reference fuels) mixtures (TPRF70 and TPRF97.5), representing low octane (research octane number 70) and high octane (research octane number 97.5) gasoline, was also studied in jet-stirred reactor coupled with gas chromatography (GC) analysis to investigate the formation of soot and polycyclic aromatic hydrocarbons (PAH) formation.

روابط وملفات

التعريف والنوع

رقم الوثيقة

0b4e3b5d-d244-4ccf-a106-7b74af04ce4e

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

word

أسماء الملفات

1699153_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"ماني ساراثي","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"مرام المالكي","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

English

المصدر والدورية

اسم المصدر

Oxidation and pyrolysis study on different gasoline surrogates in the jet-stirred reactor

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

gasoline surrogates, Jet-stirred reactor , Soot Formation

إشراف وإعداد

الإشراف

ماني ساراثي

الإعداد

مرام المالكي

الاقتباسات الببليوغرافية