Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine
The throttle mechanism, a regulatory technique of engine output, is accompanied by a loss of some energy. The effect of intake air throttling on the performance and emissions of a multi-cylinder spark ignition gasoline engine was experimentally investigated. The engine was coupled to a hydraulic dyn...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Jezik: | English |
| Izdano: |
Universiti Malaysia Pahang
2022
|
| Teme: | |
| Online dostop: | http://umpir.ump.edu.my/id/eprint/37391/1/Throttling%20Effect%20on%20the%20Performance%20and%20Emissions.pdf |
| _version_ | 1825814923083513856 |
|---|---|
| author | Hamada, Khalaf I. Rahim, M. F. Raham, M. M. A. Bakar, Rosli |
| author_facet | Hamada, Khalaf I. Rahim, M. F. Raham, M. M. A. Bakar, Rosli |
| author_sort | Hamada, Khalaf I. |
| collection | UMP |
| description | The throttle mechanism, a regulatory technique of engine output, is accompanied by a loss of some energy. The effect of intake air throttling on the performance and emissions of a multi-cylinder spark ignition gasoline engine was experimentally investigated. The engine was coupled to a hydraulic dynamometer equipped with a customized cooling system for both the engine and dynamometer. Experimental tests were performed for various engine speeds and air-fuel ratios at the WOT and POT conditions with optimized ignition timing. The acquired results recorded that a better engine operation could be achieved with WOT in terms of bmep, bsfc, ηb, CO, CO2 and UHC compared to POT. At the same time, the worst trend at WOT was noticed for the NOx concentration due to the higher conversion efficiency of fuel combustion. In terms of engine speed for both WOT and POT conditions, operating at 3000 rpm represents the minima of ϕ, bsfc, CO and UHC; and the maxima of ηb, CO2 and NOx with some fluctuation on both sides of this point. Maximum recorded values of ηb were about 30.55% and 28. 55%, while the minimum values of bsfc were about 274 and 293 g/kW.h for the WOT and POT conditions, respectively. The maximum bmep was obtained at 2500 rpm at WOT and POT conditions with values of about 940 kPa and 904 kPa, respectively. Maximum recorded values of NOx were about 1525 and 977 ppm for the WOT and POT conditions, respectively. |
| first_indexed | 2024-03-06T13:05:46Z |
| format | Article |
| id | UMPir37391 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T13:05:46Z |
| publishDate | 2022 |
| publisher | Universiti Malaysia Pahang |
| record_format | dspace |
| spelling | UMPir373912023-04-03T07:11:51Z http://umpir.ump.edu.my/id/eprint/37391/ Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine Hamada, Khalaf I. Rahim, M. F. Raham, M. M. A. Bakar, Rosli TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics The throttle mechanism, a regulatory technique of engine output, is accompanied by a loss of some energy. The effect of intake air throttling on the performance and emissions of a multi-cylinder spark ignition gasoline engine was experimentally investigated. The engine was coupled to a hydraulic dynamometer equipped with a customized cooling system for both the engine and dynamometer. Experimental tests were performed for various engine speeds and air-fuel ratios at the WOT and POT conditions with optimized ignition timing. The acquired results recorded that a better engine operation could be achieved with WOT in terms of bmep, bsfc, ηb, CO, CO2 and UHC compared to POT. At the same time, the worst trend at WOT was noticed for the NOx concentration due to the higher conversion efficiency of fuel combustion. In terms of engine speed for both WOT and POT conditions, operating at 3000 rpm represents the minima of ϕ, bsfc, CO and UHC; and the maxima of ηb, CO2 and NOx with some fluctuation on both sides of this point. Maximum recorded values of ηb were about 30.55% and 28. 55%, while the minimum values of bsfc were about 274 and 293 g/kW.h for the WOT and POT conditions, respectively. The maximum bmep was obtained at 2500 rpm at WOT and POT conditions with values of about 940 kPa and 904 kPa, respectively. Maximum recorded values of NOx were about 1525 and 977 ppm for the WOT and POT conditions, respectively. Universiti Malaysia Pahang 2022-12 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/37391/1/Throttling%20Effect%20on%20the%20Performance%20and%20Emissions.pdf Hamada, Khalaf I. and Rahim, M. F. and Raham, M. M. and A. Bakar, Rosli (2022) Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine. International Journal of Automotive and Mechanical Engineering (IJAME), 19 (4). pp. 10084-10093. ISSN 2229-8649 (Print); 2180-1606 (Online). (Published) https://doi.org/10.15282/ijame.19.4.2022.05.0779 https://doi.org/10.15282/ijame.19.4.2022.05.0779 |
| spellingShingle | TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Hamada, Khalaf I. Rahim, M. F. Raham, M. M. A. Bakar, Rosli Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine |
| title | Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine |
| title_full | Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine |
| title_fullStr | Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine |
| title_full_unstemmed | Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine |
| title_short | Throttling effect on the performance and emissions of a multi-cylinder gasoline fuelled spark ignition engine |
| title_sort | throttling effect on the performance and emissions of a multi cylinder gasoline fuelled spark ignition engine |
| topic | TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics |
| url | http://umpir.ump.edu.my/id/eprint/37391/1/Throttling%20Effect%20on%20the%20Performance%20and%20Emissions.pdf |
| work_keys_str_mv | AT hamadakhalafi throttlingeffectontheperformanceandemissionsofamulticylindergasolinefuelledsparkignitionengine AT rahimmf throttlingeffectontheperformanceandemissionsofamulticylindergasolinefuelledsparkignitionengine AT rahammm throttlingeffectontheperformanceandemissionsofamulticylindergasolinefuelledsparkignitionengine AT abakarrosli throttlingeffectontheperformanceandemissionsofamulticylindergasolinefuelledsparkignitionengine |