Effects of Fuel Temperature on Injection Process and Combustion of Dimethyl Ether EngineSource: Journal of Energy Resources Technology:;2013:;volume( 135 ):;issue: 004::page 42202DOI: 10.1115/1.4023549Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To investigate the effects of fuel temperature on the injection process in the fuelinjection pipe and the combustion characteristics of compression ignition (CI) engine, tests on a four stroke, direct injection dimethyl ether (DME) engine were conducted. Experimental results show that as the fuel temperature increases from 20 to 40 آ°C, the sound speed is decreased by 12.2%, the peak line pressure at pump and nozzle sides are decreased by 7.2% and 5.6%, respectively. Meanwhile, the injection timing is retarded by 2.2 آ°CA and the injection duration is extended by 0.8 آ°CA. Accordingly, the ignition delay and the combustion duration are extended by 0.7 آ°CA and 4.0 آ°CA, respectively. The cylinder peak pressure is decreased by 5.4%. As a result, the effective thermal efficiency is decreased, especially for temperature above 40 آ°C. Before beginning an experiment, the fuel properties of DME, including the density, the bulk modulus, and the sound speed were calculated by “ThermoData.†The calculated result of sound speed is consistent with the experimental results.
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| contributor author | Guangxin, Gao | |
| contributor author | Zhulin, Yuan | |
| contributor author | Apeng, Zhou | |
| contributor author | Shenghua, Liu | |
| contributor author | Yanju, Wei | |
| date accessioned | 2017-05-09T00:57:55Z | |
| date available | 2017-05-09T00:57:55Z | |
| date issued | 2013 | |
| identifier issn | 0195-0738 | |
| identifier other | jert_135_04_042202.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/151509 | |
| description abstract | To investigate the effects of fuel temperature on the injection process in the fuelinjection pipe and the combustion characteristics of compression ignition (CI) engine, tests on a four stroke, direct injection dimethyl ether (DME) engine were conducted. Experimental results show that as the fuel temperature increases from 20 to 40 آ°C, the sound speed is decreased by 12.2%, the peak line pressure at pump and nozzle sides are decreased by 7.2% and 5.6%, respectively. Meanwhile, the injection timing is retarded by 2.2 آ°CA and the injection duration is extended by 0.8 آ°CA. Accordingly, the ignition delay and the combustion duration are extended by 0.7 آ°CA and 4.0 آ°CA, respectively. The cylinder peak pressure is decreased by 5.4%. As a result, the effective thermal efficiency is decreased, especially for temperature above 40 آ°C. Before beginning an experiment, the fuel properties of DME, including the density, the bulk modulus, and the sound speed were calculated by “ThermoData.†The calculated result of sound speed is consistent with the experimental results. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Effects of Fuel Temperature on Injection Process and Combustion of Dimethyl Ether Engine | |
| type | Journal Paper | |
| journal volume | 135 | |
| journal issue | 4 | |
| journal title | Journal of Energy Resources Technology | |
| identifier doi | 10.1115/1.4023549 | |
| journal fristpage | 42202 | |
| journal lastpage | 42202 | |
| identifier eissn | 1528-8994 | |
| tree | Journal of Energy Resources Technology:;2013:;volume( 135 ):;issue: 004 | |
| contenttype | Fulltext |