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| Effects of Membrane-based Oxygen-enrichment Technology on Performance of Diesel Engine at High Altitude |
| Received:July 28, 2017 Revised:October 15, 2017 |
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| DOI：10.7643/issn.1672-9242.2017.10.006 |
| KeyWord:high altitude diesel engine membrane-based oxygen-enrichment fuel consumption |
| Author | Institution |
| XIONG Yun |
Army Service College, PLA, Chongqing , China |
| LIU Xiao |
Army Service College, PLA, Chongqing , China |
| FAN Linjun |
Army Service College, PLA, Chongqing , China |
| XU Shi-hai |
Army Service College, PLA, Chongqing , China |
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| Abstract: |
| Objective To improve the performance of diesel engine at high altitude by membrane-based oxygen-enrichment technology. Methods The spiral-wound oxygen-enriched membrane was used as the source of oxygen enriched air; the engine itself was used as the power source; and the oxygen-enriched device was designed to produce oxygen enriched inlet air. The parallel intake mode was used. The bypass pipeline was added to the engine intake system to supplement the engine with oxygen-enriched air to improve the oxygen content of the inlet air. Influences of oxygen enrichment technology on engine performance were investigated by high altitude engine simulation bench and high altitude real equipment test. Results The experimental results of high altitude engine simulation showed that the performance of the engine at high altitude obviously decreased with the increase of altitude. Compared with that on the plain, the power of the diesel engine dropped by 43.2 % and the fuel consumption increased by 74.0 % respectively. After using the oxygen enrichment technology, the performance of the engine at high altitude restored. At the simulated altitude of 5000 m, the power of the diesel engine increased by 9.9 %; and the fuel consumption rate decreased by 8.4 % on average. The test on the diesel generator of Tanggula pumping station showed that the average power consumption of the unit decreased by 8.52 % after the use of oxygen-enriched device. During the test, the engine with oxygen enrichment technology was stable and reliable. Conclusion The membrane-based oxygen-enrichment technology can effectively improve the performance of diesel engine at high altitude. |
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