Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine
Lowering the amount of excess air is believed to increase the density of the air-fuel mixture and help improve the combustion rate for compression ignition engines. This paper proposes an approach of adding a throttle body at the intake pipe to control the excess air ratio with reduction of air supp...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/11/11/2944 |
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| author | Yu-Hui Peng Yu-Peng Huang Jia-You Tang Qi-Feng Huang Yi-Ran Huang |
| author_facet | Yu-Hui Peng Yu-Peng Huang Jia-You Tang Qi-Feng Huang Yi-Ran Huang |
| author_sort | Yu-Hui Peng |
| collection | DOAJ |
| description | Lowering the amount of excess air is believed to increase the density of the air-fuel mixture and help improve the combustion rate for compression ignition engines. This paper proposes an approach of adding a throttle body at the intake pipe to control the excess air ratio with reduction of air supply to achieve a better balance between the power, emissions and fuel efficiency at medium and low load of a natural gas dual-fuel diesel engine converted from a conventional diesel engine. Various experiments in both pure diesel and dual-fuel mode under intermediate engine speed are performed with the proposed critical method of excess air ratio control. The experimental results reveal that better excess air ratio is very beneficial for the power output and brake specific energy consumption in dual-fuel combustion under medium and low load conditions. Moreover, the substitution rate can reach as high as 40% under low load conditions with throttle control. |
| first_indexed | 2024-04-11T18:40:04Z |
| format | Article |
| id | doaj.art-b5ea6945f65c46bdaaf0409cd661e5cf |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T18:40:04Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b5ea6945f65c46bdaaf0409cd661e5cf2022-12-22T04:09:02ZengMDPI AGEnergies1996-10732018-10-011111294410.3390/en11112944en11112944Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel EngineYu-Hui Peng0Yu-Peng Huang1Jia-You Tang2Qi-Feng Huang3Yi-Ran Huang4School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, ChinaSchool of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, ChinaSchool of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, ChinaSchool of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, ChinaFujian Lijia Co., Ltd., Zhangzhou 363006, ChinaLowering the amount of excess air is believed to increase the density of the air-fuel mixture and help improve the combustion rate for compression ignition engines. This paper proposes an approach of adding a throttle body at the intake pipe to control the excess air ratio with reduction of air supply to achieve a better balance between the power, emissions and fuel efficiency at medium and low load of a natural gas dual-fuel diesel engine converted from a conventional diesel engine. Various experiments in both pure diesel and dual-fuel mode under intermediate engine speed are performed with the proposed critical method of excess air ratio control. The experimental results reveal that better excess air ratio is very beneficial for the power output and brake specific energy consumption in dual-fuel combustion under medium and low load conditions. Moreover, the substitution rate can reach as high as 40% under low load conditions with throttle control.https://www.mdpi.com/1996-1073/11/11/2944excess air ratiodual-fuel enginenatural gassubstitution ratebench test |
| spellingShingle | Yu-Hui Peng Yu-Peng Huang Jia-You Tang Qi-Feng Huang Yi-Ran Huang Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine Energies excess air ratio dual-fuel engine natural gas substitution rate bench test |
| title | Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine |
| title_full | Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine |
| title_fullStr | Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine |
| title_full_unstemmed | Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine |
| title_short | Experimental Study on the Effects of Air Supply Control on Combustion and Emissions Performance at Medium and Low Load for a Dual-Fuel Diesel Engine |
| title_sort | experimental study on the effects of air supply control on combustion and emissions performance at medium and low load for a dual fuel diesel engine |
| topic | excess air ratio dual-fuel engine natural gas substitution rate bench test |
| url | https://www.mdpi.com/1996-1073/11/11/2944 |
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