左承基
研究方向为内燃机燃烧过程与排放控制、清洁燃料发动机、内燃机新能源
个性化签名
- 姓名:左承基
- 目前身份:
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学术头衔:
博士生导师, 优秀教师/优秀教育工作者,
- 职称:-
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学科领域:
动力机械工程
- 研究兴趣:研究方向为内燃机燃烧过程与排放控制、清洁燃料发动机、内燃机新能源
左承基,男,1955年1月出生。1979年毕业于合肥工业大学内燃机专业,1989年在安徽工学院动力系获硕士学位,1996年在天津大学热能系获博士学位,1998年在清华大学汽车工程系博士后出站。
现任合肥工业大学机械汽车工程学院热能与动力系教授、博导、系主任。同时,担任中国内燃机学会理事、安徽省内燃机学会副理事长兼秘书长、内燃机学报特邀编委、安徽省第七届科协委员、合肥工业大学学报第六届编委会委员、校学术委员会委员等。
研究方向为内燃机燃烧过程与排放控制、清洁燃料发动机、内燃机新能源。现主讲本科生课程2门、硕士研究生课程4门、博士研究生课程2门。指导博士研究生3名、硕士研究生11名,已指导16人获得硕士学位。
1998年以来,主持完成和正在承担国家自然科学基金1项、国家863项目1项、省部市级项目5项、企业合作科研项目6项。已获国家实用新型专利2 项、申请国家发明专利2项。1997年以来发表的论文近50篇,其中国内外重要期刊15篇,EI收录12篇。
获得教育部高等学校优秀骨干教师奖1项;安徽省优秀论文一等奖1项、二等奖1项、三等奖3项;史绍熙科技教育成就奖一等奖1项;指导获得第七届挑战杯全国大学生课外学术科技作品竞赛三等奖1项;以及安徽省优秀教师、校师德标兵、三育人先进工作者等多项其它奖项。
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【期刊论文】Structural analysis of bio-oils from sub-and supercritical water liquefaction of woody biomass
左承基, Yejian Qian, Chengji Zuo, Jian Tan, Jianhui He
Y. Qian et al. Energy 32 (2007) 196-202,-0001,():
-1年11月30日
Woody biomass was liquefied by water in an autoclave in the reaction temperature range of 280-420℃with sodium carbonate as the catalyst. The experimental results show that the yield of the main liquefaction product (heavy oil) was significantly influenced by the process conditions. The maximum yield of heavy oil was obtained at reaction temperature 380℃. The heavy oils obtained at different reaction temperature were analyzed by Fourier transform infrared spectroscopy (FTIR) and gas chromatography/mass spectrometry (GC/MS). The analytical results show the heavy oil is complex compound that contain hydrocarbon, aldehyde, ketone, hydroxybenzene and ester.
Woody biomass, Direct liquefaction, FTIR, GC-MS, Liquefaction product
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引用
左承基, 钱叶剑, 谈建, 滕勤
内燃机学报第24卷(2006)第4期/Transactions of CSICE Vol. 24, (2006) No. 4,-0001,():
-1年11月30日
在电控汽油机参数未作任何调整的情况下,实验研究了汽油机燃用乙醇汽油对发动机经济性和动力性的影响。研究表明:电控汽油机改燃乙醇汽油后,部分负荷时汽油机的功率和转矩有所降低,但全负荷时汽油机的动力输出不变;与普通汽油相比,乙醇汽油的燃油消耗率增加5%-10%,而且汽油机的经济区范围变窄;但能耗率会有所改善,在怠速工况下,乙醇汽油会降低汽油机的CO、HC和NO2排放;乙醇汽油对汽油机性能的影响与空燃比控制策略有关。
乙醇汽油, 发动机性能, 汽油机
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引用
左承基, 钱叶剑, 何建辉, 刘 勇
研究与试验(RENEWABLE ENERGY) No. 1 2006 (125 Issue in All),-0001,():
-1年11月30日
用傅立叶变换红外光谱法对木质生物质在280-380℃水中的直接液化产物进行了研究。研究表明,木质生物质的液化可以分为2个阶段,即纤维素类和木质素类的液化;最终液化产物官能团受温度的影响不大;最终液化产物是复杂的混合物,含有烃、醛、酮、酚和酯等各类化合物。
红外光谱, 直接液化, 木质生物质, 官能团
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左承基, 刘一鸣, 左从兵, 滕勤, 方会咏
内燃机工程2005年12月第26卷第6期/Chinese Internal Combustion Engine Engineering Dec. 2005, Vol. 26, No. 6,-0001,():
-1年11月30日
介绍了一种适合二甲醚DME代用燃料的电控 PRVI (泵-轨-阀-嘴)喷射系统,并根据二甲醚的性质特点研究开发了系统电控单元的管理模块、 控制模块和计算机监控系统。通过在油泵试验台上的燃油喷射试验,验证了控制软件的实时性和精确性。
内燃机, 二甲醚, 电控单元, 软件设计, 控制算法
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引用
左承基, Yejian Qian, Chengji Zuo, Jian Tan and Hongming Xu
,-0001,():
-1年11月30日
Liquefied alternative fuels offer great potential benefits in reducing exhaust emissions and improving fuel economy of automotive engines. In order to achieve the best performance of the engine running with such fuels, it is critical to have an appropriate fuel system. In the present work, a new electronically controlled common-rail injection system has been specially designed and tested for the direct injection of liquefied alternative fuels, since a conventional pump-line-injector injection system in the conventional diesel engine was not suitable for the purpose. Experimental work has been carried out to examine and improve matching of the fuel injection system on a new fuel injection pump test bench. The preliminary engine bench test has demonstrated that this arrangement meets the requirement for the operating characteristics of a fuel injection system in a direct injection diesel engine operating with dimethyl ether (DME).
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引用
左承基, 钱叶剑, 顾红兰
热科学与技术2005年6月第4卷第2期/Journal of Thermal Science and Technology Jun., 2005, Vol. 4, No. 2,-0001,():
-1年11月30日
根据化学反应动力学原理,建立了火花点火式变组分煤层气发动机CO的生成模型,该模型由碳氢燃料高温氧化生成CO以及CO在火焰中及火焰后氧化两部分组成。以MATLAB程序设计语言为应用平台,对CO的瞬时排放量进行了模拟计算,得到了发动机缸内CO的变化规律。同时,计算和分析了煤层气组分变化对CO排放的影响,并与实验结果进行了比较。研究结果证实,所建立的CO排放模型是合理的。理论和试验结果表明,提高煤层气中的甲烷浓度和发动机的负荷有利于降低发动机的CO排放量。
火花点火式发动机, 变组分煤层气, 排放模型
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左承基, 钱叶剑, 顾红兰
农业机械学报2005年9月第36卷第9期,-0001,():
-1年11月30日
以火花点火式S195型煤层气发动机为基础,建立缸内燃烧过程碳化氢(HC)和氧化氮(NO)2种排放物的排放模型,以Matlab程序设计语言为平台,对HC和NO实际排放量进行仿真。计算结果表明,计算值与实测值吻合较好。研究发动机燃用变组分煤层气后HC和NO的排放特性以及煤层气组分变化对发动机HC和NO排放量的影响。提高煤层气中甲烷的体积分数有利于降低HC排放量,但不利于降低NO排放量。
煤层气发动机, 排放模型, 试验
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左承基, ZUO Chengji, QIAN Yejian, TENG Qin, TAN Jian, XU Tianyu
,-0001,():
-1年11月30日
Alternative fuel engines have widely been developed in the world due to the decrease of oil resources and the strictness of exhaust regulation. This paper introduces the main processes of designing the diesel engine fuelled with coal-bed gas and ignited by spark plug, and analyzes a number of problems considered in processes of designing the engine. As an example, the characteristics of a coal-bed gas engine converted from a S195 diesel engine are introduced, and the performances of the prototype engine are discussed based on the results of engine testing. And some significant conclusions were got.
Alternative Fuel, Coal-bed Gas, Spark Ignition Engine, Operation Stability, Emission Characteristic
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左承基, Yejian Qian, Chengji Zuo, Jian Tan and Hongming Xu
,-0001,():
-1年11月30日
There is a worldwide interest in the research of various alternative fuels for automotive engines for the purpose of reduction of CO2 and toxically harmful exhaust emissions. Coal-bed gas, the main component of which is methane, has been considered an attractive alternative fuel for combustion engines due to its abundant resources, high hydrogen-carbon ratios and very low soot formation tendency. The composition of available coal-bed gas, however, can vary considerably, and this has made its combustion stability difficult to control in conventional spark ignition engines. To overcome the problem, a combustion system with a swirl chamber connected to the main combustion chamber through an orifice has been developed for the use of coal-bed gas in spark ignition engines, and the corresponding combustion process has been studied using a developed combustion model involving flame kernel formation and flame front propagation. The combustion model includes two sub-models with the first dealing with the calculation of turbulence intensity history, and the second modeling a jet flow through the orifice of the swirl chamber. Emissions of NOX, HC and CO have been predicted using the combustion model based on an extended Zeldovich mechanism, wall quenching and incomplete oxidation simulations. The effects of various components in coal-bed gas on the engine combustion process and emissions are also investigated. Validation of the combustion model has been performed through comparing simulation data with the experimental result obtained from a relevant single cylinder research engine, and a satisfactory agreement between them has been achieved in terms of combustion parameters and exhaust emissions.
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左承基, 赵俊华
热科学与技术2004年6月第3卷第2期/Journal of Thermal Science and Technology Jun. 2004, Vol. 3, No. 2,-0001,():
-1年11月30日
根据涡流室、主燃室中气体流动过程的质量和能量的交换关系,建立了涡流室式LPG (liquefied petrdeum gas)/柴油双燃料发动机准维燃烧模型的方程,提出了如何使两种不同性质燃料的燃烧在同一个燃烧过程中相互联系、相互作用的燃烧模型。根据模型提供的方程,对缸内燃烧过程和NOx的生成进行了模拟仿真,将其同发动机台架试验的结果进行了验证、分析和讨论。
LPG/柴油双燃料, 发动机, 燃烧模型
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