Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine
Homogeneous charge compression ignition (HCCI) combustion, when applied to a gasoline engine, offers the potential for a noticeable improvement in fuel economy and dramatic reductions in NOx emissions. In this study, Computational Fluid Dynamic (CFD) is used coupled with detailed chemical mechanism...
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| Format: | Article |
| Language: | English |
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Trans Tech Publications
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/28541/ http://psasir.upm.edu.my/id/eprint/28541/1/Effects%20of%20intake%20temperature%20and%20equivalence%20ratio%20on%20HCCI%20ignition%20timing%20and%20emissions%20of%20a%202-stroke%20engine.pdf |
| _version_ | 1848846145543995392 |
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| author | Najafabadi, Mohammad Izadi Abdul Aziz, Nuraini Adam, Nor Mariah Leman, Abdul Mutalib |
| author_facet | Najafabadi, Mohammad Izadi Abdul Aziz, Nuraini Adam, Nor Mariah Leman, Abdul Mutalib |
| author_sort | Najafabadi, Mohammad Izadi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Homogeneous charge compression ignition (HCCI) combustion, when applied to a gasoline engine, offers the potential for a noticeable improvement in fuel economy and dramatic reductions in NOx emissions. In this study, Computational Fluid Dynamic (CFD) is used coupled with detailed chemical mechanism (38 species and 69 reactions) for simulation of HCCI combustion of iso-octane and transitional flow inside the combustion chamber of a 2-stroke engine. Results show that increasing the overall gas temperature significantly advances the HCCI combustion timing. Concerning the equivalence ratio, by increasing it the ignition timing has been advanced and the maximum cylinder pressure has been increased. When equivalence ratio increases to more than 0.5 , NOx emissions significantly increases and go beyond 1000 [ppm]. |
| first_indexed | 2025-11-15T08:58:03Z |
| format | Article |
| id | upm-28541 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:58:03Z |
| publishDate | 2013 |
| publisher | Trans Tech Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-285412015-10-23T02:38:08Z http://psasir.upm.edu.my/id/eprint/28541/ Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine Najafabadi, Mohammad Izadi Abdul Aziz, Nuraini Adam, Nor Mariah Leman, Abdul Mutalib Homogeneous charge compression ignition (HCCI) combustion, when applied to a gasoline engine, offers the potential for a noticeable improvement in fuel economy and dramatic reductions in NOx emissions. In this study, Computational Fluid Dynamic (CFD) is used coupled with detailed chemical mechanism (38 species and 69 reactions) for simulation of HCCI combustion of iso-octane and transitional flow inside the combustion chamber of a 2-stroke engine. Results show that increasing the overall gas temperature significantly advances the HCCI combustion timing. Concerning the equivalence ratio, by increasing it the ignition timing has been advanced and the maximum cylinder pressure has been increased. When equivalence ratio increases to more than 0.5 , NOx emissions significantly increases and go beyond 1000 [ppm]. Trans Tech Publications 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28541/1/Effects%20of%20intake%20temperature%20and%20equivalence%20ratio%20on%20HCCI%20ignition%20timing%20and%20emissions%20of%20a%202-stroke%20engine.pdf Najafabadi, Mohammad Izadi and Abdul Aziz, Nuraini and Adam, Nor Mariah and Leman, Abdul Mutalib (2013) Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine. Applied Mechanics and Materials, 315. pp. 498-502. ISSN 1660-9336; ESSN: 1662-7482 http://www.scientific.net/AMM.315.498 10.4028/www.scientific.net/AMM.315.498 |
| spellingShingle | Najafabadi, Mohammad Izadi Abdul Aziz, Nuraini Adam, Nor Mariah Leman, Abdul Mutalib Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine |
| title | Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine |
| title_full | Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine |
| title_fullStr | Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine |
| title_full_unstemmed | Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine |
| title_short | Effects of intake temperature and equivalence ratio on HCCI ignition timing and emissions of a 2-stroke engine |
| title_sort | effects of intake temperature and equivalence ratio on hcci ignition timing and emissions of a 2-stroke engine |
| url | http://psasir.upm.edu.my/id/eprint/28541/ http://psasir.upm.edu.my/id/eprint/28541/ http://psasir.upm.edu.my/id/eprint/28541/ http://psasir.upm.edu.my/id/eprint/28541/1/Effects%20of%20intake%20temperature%20and%20equivalence%20ratio%20on%20HCCI%20ignition%20timing%20and%20emissions%20of%20a%202-stroke%20engine.pdf |