第44卷（2022）第6期Vol.44（2022）No.6柴油机DieselEngineDOI：10.12374/j.issn.1001-4357.2022.06.001工作环境对自然吸气柴油机性能影响仿真徐海成1，潘兴隆2，马玉成3（1.海军装备部装备项目管理中心，北京100071；2.海军工程大学动力工程学院，武汉430033；3.海军工程大学舰船与海洋学院，武汉430033）摘要：基于CY4102BG四冲程自然吸气柴油机，利用GT-POWER一维仿真计算软件建立柴油机工作过程仿真模型，研究高原和水下工作环境对柴油机性能的影响。仿真结果表明：随着海拔的增高，柴油机有效功率有所下降，NOx排放上升，排气温度增加；随着水下排气背压的增高，柴油机有效功率下降，NOx排放显著上升。针对柴油机在非标况环境下NOx排放性能的恶化，通过调节喷油参数来优化柴油机综合性能。经优化，在不同工作环境下柴油机NOx排放降低7.3%~21.4%，优化效果较为明显。关键词：一维仿真；进气压力；排气背压；NOx排放中图分类号：TK421文献标志码：A文章编号：1001-4357（2022）06-0001-06SimulationoftheInfluenceofWorkingEnvironmentonthePerformanceofNaturallyAspiratedDieselEngineXUHaicheng1，PANXinglong2，MAYucheng3（1.PowerEquipmentDepartment，ChineseNavalArmamentDepartmentProjectManagementCenter，Beijing100071，China；2.CollegeofPowerEngineering，NavalUniversityofEngineering，Wuhan430033，China；3.CollegeofNavalArchitecture&OceanEngineering，NavalUniversityofEngineering，Wuhan430033，China）Abstract：BasedonCY4102BGfourstrokedieselengine，asimulationmodelofdieselengineworkingprocesswasestablishedbyusingGT-POWERone-dimensionalsimulationsoftwaretostudytheinfluenceofplateauandunderwaterworkingenvironmentondieselengineperformance.Thesimulationresultsshowthat：Withtheincreaseofaltitude，theeffectivepowerofdieselenginedecreases，NOxemissionsincrease，andexhausttemperatureincreases；Withtheincreaseofunderwaterexhaustbackpressure，theeffectivepowerofdieselenginedecreasesandNOxemissionsincreasesignificantly.AimingatthedeteriorationofNOxemissionperformanceofdieselengineinnon-standardenvironment，thecomprehensiveperformanceofdieselenginewasoptimizedbyadjustingfuelinjectionparameters.Afteroptimization，NOxemissionofdieselengineindifferentworking...
