|
|
Journal of Renewable Energy and Environment، جلد ۶، شماره ۱، صفحات ۲۹-۳۵
|
|
|
| عنوان فارسی |
- |
|
| چکیده فارسی مقاله |
|
|
| کلیدواژه‌های فارسی مقاله |
|
|
| عنوان انگلیسی |
Comparison of the Effects of Hydrogen and Hydroxygen Additions and Oxygen Enrichment on the Emission Characteristics of EF7 Engine |
|
| چکیده انگلیسی مقاله |
In this study, the effects of hydrogen and hydroxygen additions and oxygen enrichment on the emission characteristics of a gasoline engine (EF7) were investigated and compared with each other. The simulation was launched by GT-Power at different engine speeds with 5 % to 15 % volume fractions for both of oxygen and hydrogen enrichment and 4.5 % to 9 % volume fractions of hydroxygen addition in the intake gas, respectively. In addition, the model was validated by experimental data. The results showed that CO emission decreased from 11 % to 28 % in the hydrogen-enrichment condition. Moreover, carbon monoxide production was reduced from 28 % to 42 % for hydroxygen addition, and this pollutant emission experienced a reduction of 51 % to 67 % for oxygen enrichment. According to the results, HC emission decreased up to 13% in the hydrogen-enriched air condition, and it was reduced from 30 % to 43 % during hydroxygen addition. In addition, HC emission experienced maximum reduction of 47 % to 68 % during oxygen addition. On the other hand, there was an opposite trend for NOx emission. It was observed that NOx emission increased by around 40 % and 75 % for hydrogen and hydroxygen enrichment, respectively. Moreover, nitrogen oxides enhanced 2 to 5 times during oxygen enrichment, compared to that in the normal condition of the engine. Results showed that 15 % oxygen enrichment and 9 % hydroxygen enrichment had significant effect on the reduction of HC and CO emissions, and oxygen enrichment had greater effect on the rise of NOx emissions than hydrogen and hydroxygen additions. |
|
| کلیدواژه‌های انگلیسی مقاله |
hydrogen, Hydroxygen, Modeling, Emission, Enrichment |
|
| نویسندگان مقاله |
Reza Rahimi |
Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
Alireza Shirneshan |
Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
|
|
| نشانی اینترنتی |
http://www.jree.ir/article_95560_36575be7083d2dd822ee18bbc04e2dc2.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/510/article-510-2063399.pdf |
| کد مقاله (doi) |
|
| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
|
| نوع مقاله منتشر شده |
|
|
|
|
برگشت به:
صفحه اول پایگاه |
نسخه مرتبط |
نشریه مرتبط |
فهرست نشریات
|