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Multi-objective Design of Blending Fuel by Intelligent Optimization Algorithms
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作者 Ruichen Liu Cong Li +2 位作者 Li Wang Xiangwen Zhang Guozhu Li 《Transactions of Tianjin University》 EI CAS 2024年第3期221-237,共17页
Fuel design is a complex multi-objective optimization problem in which facile and robust methods are urgently demanded.Herein,a complete workflow for designing a fuel blending scheme is presented,which is theoreticall... Fuel design is a complex multi-objective optimization problem in which facile and robust methods are urgently demanded.Herein,a complete workflow for designing a fuel blending scheme is presented,which is theoretically supported,efficient,and reliable.Based on the data distribution of the composition and properties of the blending fuels,a model of polynomial regression with appropriate hypothesis space was established.The parameters of the model were further optimized by different intelligence algorithms to achieve high-precision regression.Then,the design of a blending fuel was described as a multi-objective optimization problem,which was solved using a Nelder–Mead algorithm based on the concept of Pareto domination.Finally,the design of a target fuel was fully validated by experiments.This study provides new avenues for designing various blending fuels to meet the needs of next-generation engines. 展开更多
关键词 Multi-objective optimization Machine learning blending fuel
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Experimental Investigation on Macro Spray Characteristics of Octanol-Biodiesel-Diesel Ternary Fuel Blend
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作者 Tian Junjian Qiu Zhicong +3 位作者 Zhao Lifei Li Fengyu Hu Peng Lin Qizhao 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS CSCD 2023年第4期1-15,共15页
This study investigates the spray characteristics of ternary blends composed of octanol, biodiesel, and diesel fuel.Experiments are conducted using six materials to examine the variation in spray characteristic and to... This study investigates the spray characteristics of ternary blends composed of octanol, biodiesel, and diesel fuel.Experiments are conducted using six materials to examine the variation in spray characteristic and to verify and compare a previously established spray tip penetration model with a modified model. The results show that the addition of OB100(30%of octanol, 70% of biodiesel) improves the spray characteristics of the fuel. Specifically, the addition of 10% or 20% of OB100 leads to a slight increase in the spray tip penetration, average spray cone angle, maximum spray width, and the spray area of the fuel blend;however, further addition of OB100 causes a corresponding decrease in these parameters. Based on previous research, this study uses kinematic viscosity instead of dynamic viscosity and density to modify the prediction model of spray tip penetration. The modified model exhibits a better fit quality and agreement with the experimental data,making it more suitable for predicting the spray tip penetration of fuel blends compared to the Hiroyasu-Arai model. 展开更多
关键词 OCTANOL BIODIESEL ternary fuel blend maximum spray width modified model
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Autoignition of butanol isomers/n-heptane blend fuels on a rapid compression machine in N_2/O_2/Ar mixtures 被引量:1
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作者 YANG Zheng WANG Yue +3 位作者 YANG Xin QIAN Yong LU XingCai HUANG Zhen 《Science China(Technological Sciences)》 SCIE EI CAS 2014年第3期461-470,共10页
Ignition delay times of butanol isomers/n-heptane mixture were measured using a rapid compression machine at compressed pressures of 15,20 and 30 bar,in the compressed temperature range of 650–830 K and equivalence r... Ignition delay times of butanol isomers/n-heptane mixture were measured using a rapid compression machine at compressed pressures of 15,20 and 30 bar,in the compressed temperature range of 650–830 K and equivalence ratio of 1.0.Sensitivity analysis and reaction fluxes analysis were performed using a detailed mechanism of blend fuels so as to evaluate the impact of n-heptane addition and temperature variation on the ignition and combustion process.Over the experimental conditions in this study,the blend fuels displays apparent low and high temperature reactions and a negative-temperature-coefficient(NTC)behavior.With increasing butanol isomers mole fraction in the mixtures,the ignition delay times increase.It is worth noting that the suppression to n-heptane ignition from tert-butanol is very limited.The ignition delay time of 40/60 tert-butanol/n-heptane mixture is smaller than other three kinds of blends.With the increasing of tert-butanol mole fraction,the increasing range of its ignition delay time is very large.Moreover,compressed pressure has a limited effect on the ignition of blend mixture at low temperature but certain influence at medium temperature arrange.Tert-butanol/n-heptane mixture is not sensitive to the pressure.The chemical analysis indicates that butanol isomers also present the NTC behavior because of the low temperature reactivity radicals pool produced by n-heptane.Reaction fluxes analysis shows that the n-heptane addition has little impact on the reaction path.Sensitivity analysis shows that for the pure n-butanol,2-butanol and iso-butanol fuel,H-abstraction from the?-carbon plays the dominant role in the reactions having the inhibiting effect on the low-temperature branching,while the H-abstraction from the?-carbon can promote the ignition;for tert-butanol/n-heptane mixtures,reaction R16.H2O2(+M)<=>OH+OH(+M)plays the leading role.For n-butanol/n-heptane,iso-butanol/n-heptane mixtures,the major promoting reactions include some H-abstraction from n-heptane and OH branching reactions,the influence of H-abstraction from?-carbon is weaken;For 2-butanol/n-heptane,tert-butanol/n-heptane mixtures,R16 plays an absolutely dominant role,while the major inhibiting reactions add some elementary reactions of small radicals. 展开更多
关键词 butanol isomers blend fuels ignition delay rapid compression machine chemical kinetics
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Preparation and emission characteristics of ethanol-diesel fuel blends 被引量:2
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作者 ZHANGRun-duo HEHong +3 位作者 SHIXiao-yan ZHANGChang-bin HEBang-quan WANGJian-xin 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2004年第5期793-796,共4页
The preparation of ethanol-diesel fuel blends and their emission characteristics were investigated. Results showed the absolute ethanol can dissolve in diesel fuel at an arbitrary ratio and a small quantity of water(0... The preparation of ethanol-diesel fuel blends and their emission characteristics were investigated. Results showed the absolute ethanol can dissolve in diesel fuel at an arbitrary ratio and a small quantity of water(0.2%) addition can lead to the phase separation of blends. An organic additive was synthesized and it can develop the ability of resistance to water and maintain the stability of ethanol-diesel-trace amounts of water system. The emission characteristics of 10%, 20%, and 30% ethanol-diesel fuel blends, with or without additives, were compared with those of diesel fuel in a direct injection(DI) diesel engine. The experimental results indicated that the blend of ethanol with diesel fuel significantly reduced the concentrations of smoke, hydrocarbon(HC), and carbon monoxide(CO) in exhaust gas. Using 20% ethanol-diesel fuel blend with the additive of 2% of the total volume, the optimum mixing ratio was achieved, at which the bench diesel engine testing showed a significant decrease in exhaust gas. Bosch smoke number was reduced by 55%, HC emission by 70%, and CO emission by 45%, at 13 kW/1540 r/min. However, ethanol-diesel fuel blends produced a few ppm acetaldehydes and more ethanol in exhaust gas. 展开更多
关键词 ethanol-diesel fuel blends PREPARATION EMISSION ACETALDEHYDE ETHANOL
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Negative Valve Overlap Mode of HCCI Operation Using Gasoline and Diesel Blended Fuels
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作者 钟绍华 陈永东 +1 位作者 Miroslaw Lech Wyszynski 徐宏明 《Transactions of Tianjin University》 EI CAS 2007年第6期416-422,共7页
The negative valve overlap (NVO) strategy of HCCI operation was experimentally investigated on a gasoline HCCI engine operated with variable valve timing in association with the addition of diesel fuel. The experiment... The negative valve overlap (NVO) strategy of HCCI operation was experimentally investigated on a gasoline HCCI engine operated with variable valve timing in association with the addition of diesel fuel. The experimental results show that, by using gasoline and diesel blended fuels, the required NVO interval for suitable HCCI combustion under a given engine speed and a moderate compression ratio condition could be reduced, and the HCCI combustion region was extended remarkably without substantial increase in NOx emissions under a given inlet and exhaust valve timing due to the improvement of charge ignitability. In addition, the possible scale of NVO was extended. A substantial increase in the lean limit of excess air ratio and the upper limit of load range can be achieved because of higher volumetric efficiency, resulting from the decrease in the required NVO and the presence of less residual gases in cylinder. 展开更多
关键词 homogeneous charge compression ignition (HCCI) negative valve overlap(NVO) COMBUSTION blended fuels
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Research on the Physical Property of Diesel-Gasoline Blend Fuel
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作者 包堂堂 周波 +1 位作者 邓俊 吴志军 《Journal of Shanghai Jiaotong university(Science)》 EI 2014年第6期721-727,共7页
In this paper, physical property parameters including density, viscosity and surface tension of different contents of diesel-gasoline blend fuel were measured and analyzed. The experiments were performed on the diesel... In this paper, physical property parameters including density, viscosity and surface tension of different contents of diesel-gasoline blend fuel were measured and analyzed. The experiments were performed on the diesel gasoline blend fuels with 4 different volume fractions of diesel(20%, 40%, 60% and 80%) at temperature from 5℃ to 65℃. The influence of temperature and diesel content on the blends' properties was summarized based on experimental data, formulas about the material parameters were established, and the accuracy of these formulas was verified. Besides, saturated vapor pressure, freezing point and flash point of the blend fuel have also been measured and analyzed, and a database of the material parameters of the blends was also established. 展开更多
关键词 INTERNAL COMBUSTION engine diesel-gasoline blend fuel physical PROPERTY
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Blended-fuel based EDC combustion model and its application in heptane-ethanol fire simulation
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作者 Changjian Wang Jennifer Wen +1 位作者 Yanming Ding Shouxiang Lu 《Theoretical & Applied Mechanics Letters》 CAS 2014年第3期63-66,共4页
The blended-fuel based eddy-dissipation-concept combustion model was newly developed in the FireFOAM framework, and applied to simulate 30 cm×30 cm heptane-ethanol pool fire. Comparison was made of fire height, c... The blended-fuel based eddy-dissipation-concept combustion model was newly developed in the FireFOAM framework, and applied to simulate 30 cm×30 cm heptane-ethanol pool fire. Comparison was made of fire height, centerline temperature against experimental measurements, which shows that they match very well with each other. However, further studies are needed to examine the validation of this model in fire simulations with various scales. 展开更多
关键词 fire safety blended-fuel based EDC combustion model numerical simulation
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Investigation of Performance and Combustion Characteristics of DI Diesel Engine Fuelled with Ternary Fuel Blend at Different Injection Pressure
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作者 Pani Sharanappa Mallinath C. Navindgi 《World Journal of Engineering and Technology》 2017年第1期125-138,共14页
The depletion of fossil diesel fuels, global warming concerns and strict limits on regulated pollutant emissions are encouraging the use of renewable fuels. Biodiesel is the most used renewable fuel in compression ign... The depletion of fossil diesel fuels, global warming concerns and strict limits on regulated pollutant emissions are encouraging the use of renewable fuels. Biodiesel is the most used renewable fuel in compression ignition (CI) engine. The majority of literature agrees that the particulate matter (PM), unburnt total hydrocarbons (THC) and carbon dioxide (CO) emission from biodiesel are lower than from conventional diesel fuel. One of the most important reasons for this is the oxygen content of the biodiesel. This induces a more complete and cleaner combustion process. In addition to this the absence of aromatic compounds in biodiesel leads to particulate matter reduction with respect to diesel fuel. The potential emission benefits induced by the presence of oxygen in fuel molecules has increased the interest in using the bio-alcohols fuel blends in CI engines such as ethanol. Although alcohols are more suitable for blending with diesel fuel, properties like lubricity, viscosity, stability, heating value and cetane number of diesel-alcohol (Diesohol) still require improvement. One of the techniques is addition of biodiesel which can improve all of these properties forming diesel-biodiesel-alcohol (ternary) blends. The blends of diesel-biodiesel-ethanol can be used in the existing CI engines without any major modifications and most significant result of using this blend is the lower emission with almost the same performance as of diesel fuel alone. The present study focused on investigation of performance and combustion characteristics of ternary fuel blend in DI diesel engine operating at different injection opening pressure (IOP). The different injection opening pressures are: 180 bar, 200 bar and 220 bar. 展开更多
关键词 DIESOHOL TERNARY fuel blends AROMATIC Compounds Injection OPENING Pressure CI Engines
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Improved Automotive Fuel Resistance of Natural Rubber/Chlorosulfonated Polyethylene Blends by Blending Epoxidized Natural Polymer
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作者 Manisara Phiriyawirut Sawanya Luamlam 《Open Journal of Organic Polymer Materials》 2013年第4期104-109,共6页
The natural rubber (NR) was mixed with chlorosulfonated polyethylene (CSM), due to the difference of polarity in NR and CSM made this blend incompatible and the third component was used. Epoxidzed natural rubber (ENR)... The natural rubber (NR) was mixed with chlorosulfonated polyethylene (CSM), due to the difference of polarity in NR and CSM made this blend incompatible and the third component was used. Epoxidzed natural rubber (ENR) was used as a third component. NR/CSM blended with the blend ratio of 50/50 was prepared by using a two-roll mill and vulcanization in a compression mold at 160°C. The ENR content was varied from 1 to 7 phr. The curing characteristics, morphology, mechanical properties, and automotive fuel swelling were investigated. The results indicated that the cure time of the blend rubbers was shorter as adding ENR. The mechanical properties of the blend rubbers were not affected by ENR content. However, automotive fuel resistance of the blend rubbers was found to increase with adding ENR in rubber blend. 展开更多
关键词 NATURAL RUBBER CSM RUBBER blend Epoxidized NATURAL RUBBER AUTOMOTIVE fuel Resistance
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掺混含氧燃料对混合燃料喷射特性的影响研究
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作者 罗福强 伍子旭 +1 位作者 王楚翘 金天宇 《车用发动机》 北大核心 2024年第5期18-24,41,共8页
为探究添加含氧燃料对燃料喷射特性的影响,将体积分数均为50%的聚甲氧基二甲醚(PODE)和正丁醇掺混于柴油制得PODE-柴油混合燃料和正丁醇-柴油混合燃料,标记为P50和B50。在高压共轨试验台上使用基于冲量法的喷射特性测试系统,研究了柴油... 为探究添加含氧燃料对燃料喷射特性的影响,将体积分数均为50%的聚甲氧基二甲醚(PODE)和正丁醇掺混于柴油制得PODE-柴油混合燃料和正丁醇-柴油混合燃料,标记为P50和B50。在高压共轨试验台上使用基于冲量法的喷射特性测试系统,研究了柴油、PODE-柴油混合燃料、正丁醇-柴油混合燃料三种燃料在多种工况下的喷射特性差异。结果表明,掺混含氧燃料对喷油速率有较大的影响:P50的体积流量小于柴油,而质量流量则相反;B50和柴油的喷油速率在低压下差异很小,但当压力升高至130 MPa时,二者的喷油速率差异明显;相同脉宽及喷射压力时与柴油相比,循环喷油量以体积计,B50大于柴油且差距随压力上升而增大,而P50则低于柴油且差距随压力上升而缩小;循环喷油量以质量计,P50和B50均高于柴油且差异率随压力上升而增大,但B50和柴油差异率的上升幅度比P50小;以喷射能量计,除小脉宽工况外,B50和P50的喷射能量均小于柴油,喷射能量由大到小排序为柴油、B50、P50。 展开更多
关键词 混合燃料 喷射特性 冲量法 聚甲氧基二甲醚 正丁醇
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不同燃料外配比例烧结杯试验及烧结矿冶金性能试验
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作者 鲁逢霖 《酒钢科技》 2024年第1期16-21,共6页
本文针对酒钢烧结生产中存在的问题,系统研究了不同燃料外配比例对烧结垂直烧结速度、成品率、利用系数、烧结时间、转鼓强度及烧结矿冶金性能等指标的影响。试验结果表明:随着燃料外配比例的增加,烧结利用系数呈先提高后降低的趋势,综... 本文针对酒钢烧结生产中存在的问题,系统研究了不同燃料外配比例对烧结垂直烧结速度、成品率、利用系数、烧结时间、转鼓强度及烧结矿冶金性能等指标的影响。试验结果表明:随着燃料外配比例的增加,烧结利用系数呈先提高后降低的趋势,综合考虑最佳的燃料外配比例为60%;随着燃料外配比例的增加,烧结矿低温还原粉化率RDI_(+3.15mm)、烧结矿900℃还原度、烧结矿软化熔滴性能均变化不大,基本持平。 展开更多
关键词 不同燃料外配比例 烧结杯试验 烧结矿冶金性能 利用系数 成品率
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内燃兰金循环氨氢发动机热力学特征参数的模拟与分析
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作者 张冠宇 于洋 +1 位作者 田径 吴志军 《同济大学学报(自然科学版)》 EI CAS CSCD 北大核心 2024年第10期1619-1630,共12页
为实现氨氢燃料在内燃机上的应用,基于Cantera平台建立了氨氢燃料内燃兰金循环模型,进行了不同氨氢掺混比例、过量空气系数和喷水量等条件下内燃兰金循环氨氢燃料发动机燃烧过程数值模拟,从热力学循环效率和典型污染物排放两方面分析和... 为实现氨氢燃料在内燃机上的应用,基于Cantera平台建立了氨氢燃料内燃兰金循环模型,进行了不同氨氢掺混比例、过量空气系数和喷水量等条件下内燃兰金循环氨氢燃料发动机燃烧过程数值模拟,从热力学循环效率和典型污染物排放两方面分析和评价不同边界条件对燃烧特性的影响。结果表明:过量空气系数和缸内喷水量增加分别提升热力学循环效率2.66%和7.00%,喷水的作用效果更显著;氨氢燃料燃烧终了排放污染物NOx主要以NO为主;缸内喷水有利于氨氢发动机氮氧化物排放量降低,应用喷水技术后,燃烧产物中NO和NO2的排放体积分数降低幅度达到37%。 展开更多
关键词 动力机械工程 复合燃料 内燃兰金循环 热效率 排放特性
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NH_(3)/H_(2)掺混MILD燃烧及NO_(x)排放特性的数值模拟
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作者 刘祥涛 王国昌 +2 位作者 司济沧 李鹏飞 米建春 《洁净煤技术》 CAS CSCD 北大核心 2024年第8期107-116,共10页
化石能源的利用推动了人类社会的进步,但也造成了全球气候变化,威胁人类的生存与发展。在此背景下,氨和氢作为零碳燃料引起了人们的重视,但其燃烧利用面临诸多问题。MILD燃烧是一种新型燃烧方式,有望实现氨/氢混合燃料的清洁高效燃烧,... 化石能源的利用推动了人类社会的进步,但也造成了全球气候变化,威胁人类的生存与发展。在此背景下,氨和氢作为零碳燃料引起了人们的重视,但其燃烧利用面临诸多问题。MILD燃烧是一种新型燃烧方式,有望实现氨/氢混合燃料的清洁高效燃烧,但目前研究非常有限。采用数值模拟方法对预混NH_(3)/H_(2)射流火焰的MILD燃烧和排放特性进行研究。改变了射流中的氢气比例(X(H_(2))F)和当量比(Φ_(J)),并详细分析了温升、反应域、抬升高度、自由基浓度以及氮氧化物(NO_(x))排放等。结果表明,添加少量H_(2)可显著增强NH_(3)火焰的稳定性,降低自着火温度并消除火焰抬升。此外,X(H_(2))_(F)的增加能提高燃烧温度,加快H、O和OH自由基的产生,并使燃烧模式由MILD燃烧转变为高温燃烧。富燃料且氢气比例较低时,NH_(3)在燃烧前大量分解为H_(2),导致燃烧温度较高。关于NO_(x)排放,N_(2)O和NO是最主要来源,NO_(2)可忽略不计。整体上,N_(2)O和NO的排放随X(H_(2))_(F)的增加先升高再降低。当X(H_(2))_(F)较低时,N_(2)O的浓度峰值与排放量和NO相当。提高X(H_(2))_(F),温度升高,导致N_(2)O转化为NO和N_(2),因此NO变为主要的NO_(x)排放源。此外,富燃工况中,燃烧温度、OH浓度及射流对伴流中氧气的卷吸共同影响NO排放。 展开更多
关键词 氨/氢混合燃料 MILD燃烧 当量比 燃烧特性 NO_(x)排放
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椰子油催化裂解提质生物油的燃烧性能评价
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作者 冯沛 梅德清 +2 位作者 武文弢 代圣超 陆海峰 《石油学报(石油加工)》 EI CAS CSCD 北大核心 2024年第5期1453-1461,共9页
在温度450℃、氮气气氛下,将椰子油液相热解为椰子油热解油,然后进一步以CaO为催化剂进行气相催化裂解制得提质生物油。将柴油、提质生物油和棕榈生物柴油按不同比例混合得到柴油-提质生物油二元燃料和柴油-提质生物油-生物柴油三元燃料... 在温度450℃、氮气气氛下,将椰子油液相热解为椰子油热解油,然后进一步以CaO为催化剂进行气相催化裂解制得提质生物油。将柴油、提质生物油和棕榈生物柴油按不同比例混合得到柴油-提质生物油二元燃料和柴油-提质生物油-生物柴油三元燃料,采用柴油机测试混合燃料的燃油经济性和燃烧性能。结果表明:与椰子油热解油相比,提质生物油的酸值显著降低,低热值提升4.46%,含氧质量分数下降31%。柴油-提质生物油-生物柴油三元燃料在预喷阶段的放热率比柴油略有下降,而在主喷阶段的放热率有所升高,这与2段喷射期间的缸内压力变化相一致。与柴油-提质生物油二元燃料相比,生物柴油的加入使得三元燃料的十六烷值得到提升,滞燃期缩短,放热起始点提前,并且瞬时放热率峰值相位更加接近柴油。因此,柴油-提质生物油-生物柴油三元燃料在燃烧特性上更接近柴油,更适合作为理想的替代燃料。 展开更多
关键词 椰子油 热解油 催化裂解 生物柴油 混合燃料 燃烧 GC-MS
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以掺氢天然气为燃料直接内重整固体氧化物电池堆的稳定性 被引量:1
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作者 汤亚飞 武安祺 +6 位作者 韩贝贝 刘华 包善军 林王林 陈铭 官万兵 Subhash C.Singhal 《电化学(中英文)》 CAS 北大核心 2024年第1期46-54,共9页
本文研究了掺氢天然气直接内重整平管型固体氧化物电池短堆的长期稳定性和衰减机理。通过约3000小时的实测实验,结果显示,电堆的总体衰减率为2.3%·kh^(-1),电堆中三个金属连接板的面积比电阻分别增加了0.276Ω·cm^(2)、0.254... 本文研究了掺氢天然气直接内重整平管型固体氧化物电池短堆的长期稳定性和衰减机理。通过约3000小时的实测实验,结果显示,电堆的总体衰减率为2.3%·kh^(-1),电堆中三个金属连接板的面积比电阻分别增加了0.276Ω·cm^(2)、0.254Ω·cm^(2)和0.249Ω·cm^(2),但电堆中两个电池的电压反而分别增加了3.38 m V·kh^(-1)和3.78 m V·kh^(-1)。电堆衰减主要由金属连接件表层氧化及其与阴极集流层材料反应生成Sr CrO_(4)物质,两者共同作用增大了电池与金属连接体间的界面电阻所致。结果表明,以掺氢天然气为燃料直接内重整平管型固体氧化物燃料电池电堆具有良好的稳定性。本文工作为掺氢天然气在固体氧化物燃料电池堆中的直接内重整应用提供了理论参考与实验依据。 展开更多
关键词 掺氢天然气 内重整 稳定性 固体氧化物电堆
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乙醇喷雾/氨气/甲烷三元燃料的燃烧特性
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作者 季泽安 张振东 +1 位作者 李星 李军 《华南师范大学学报(自然科学版)》 CAS 北大核心 2024年第1期27-35,共9页
采用旋流喷雾燃烧器,通过分析燃烧时的火焰结构、OH^(*)和NH_(2)^(*)的荧光信号、火焰光谱以及污染物排放,探究了甲烷、乙醇和氨气3种燃料在不同当量比、摩尔分数和不同雾化空燃比(ALR)下对燃烧的影响和燃烧后烟气中NO、NO_(2)、CO含量... 采用旋流喷雾燃烧器,通过分析燃烧时的火焰结构、OH^(*)和NH_(2)^(*)的荧光信号、火焰光谱以及污染物排放,探究了甲烷、乙醇和氨气3种燃料在不同当量比、摩尔分数和不同雾化空燃比(ALR)下对燃烧的影响和燃烧后烟气中NO、NO_(2)、CO含量的变化趋势。虽然氨气的使用会产生高氮氧化物的排放,但采用三元燃料掺混燃烧(特别是在乙醇占比较高)时,CO和NO的排放量相对较低,燃烧效果最佳。在0.45~0.70当量比范围内,提高ALR有助于喷雾雾化以产生更小的液滴粒径,促进液雾和气体的混合及燃烧,从而降低CO排放。通过三元燃料掺混对燃料的改性,以及燃烧工况的调控作为氨燃烧组织优化的手段,对工业上高效使用氨燃料和减少污染物排放具有指导意义。 展开更多
关键词 氨气 乙醇 雾化空燃比 烟气排放 三元混合燃料
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航空生物燃料与石油基航空燃料混合比例确定方法
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作者 樊婕 曹桂松 +1 位作者 何敏 高金伟 《化工管理》 2024年第9期35-38,共4页
利用航空生物燃料与石油基航空燃料性能参数差异性,选取密度、运动黏度,建立了由航空生物燃料与石油基航空燃料组成的混合模型,通过逐渐增加航空生物燃料调配比例,开展混合燃料15℃密度、20℃运动黏度检测实验,绘制了混合比例与性能参... 利用航空生物燃料与石油基航空燃料性能参数差异性,选取密度、运动黏度,建立了由航空生物燃料与石油基航空燃料组成的混合模型,通过逐渐增加航空生物燃料调配比例,开展混合燃料15℃密度、20℃运动黏度检测实验,绘制了混合比例与性能参数的工作曲线,并拟合了关系式;然后结合已知生物燃料比例的混合燃料,开展密度、运动黏度检测,得到计算比例,与其已知比例进行对比分析。结果表明:采用混合比例为横坐标,密度和黏度为纵坐标建立的混合模型,拟合效果良好;在选用该模型模拟混合燃料15℃密度、20℃运动黏度随其中生物燃料比例变化而变化时,在0%~100%范围内计算比例和实际混合比例接近,吻合很好。通过该模型建立确定混合燃料中航空生物燃料混合比例的方法,可用于指导航空混合燃料的实际生产与应用。 展开更多
关键词 航空 生物燃料 石油 混合燃料
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降低新钢烧结机固体燃耗消耗生产实践
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作者 肖光华 贺勤 聂绍昌 《山西冶金》 CAS 2024年第3期158-159,共2页
烧结工序占钢铁联合区企业工序能源总消耗的10%~15%,降低烧结燃料消耗对新钢降本增效起着至关重要的作用。通过优化铁料配矿结构、优化工艺参数以及减少上料系统缓料频次,达到了提高烧结工艺产量、降低耗能的目的,烧结矿固体燃料吨耗下... 烧结工序占钢铁联合区企业工序能源总消耗的10%~15%,降低烧结燃料消耗对新钢降本增效起着至关重要的作用。通过优化铁料配矿结构、优化工艺参数以及减少上料系统缓料频次,达到了提高烧结工艺产量、降低耗能的目的,烧结矿固体燃料吨耗下降了6.09 kg,取得了良好的经济效果。 展开更多
关键词 降低 烧结矿 固体燃耗 优化配矿 缓料
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残渣型船用燃料油RMG380调和研究
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作者 夏树斌 于洋 鲍金奇 《当代化工》 CAS 2024年第1期103-106,共4页
为控制船用燃料油在燃烧过程中产生的污染,国际海事组织(IMO)于2020年1月1日起强制执行新的硫排放限制法规,将全球范围内的船用燃料油的硫含量限制在0.5%(质量分数)以下。为应对新的燃料油市场形势,中石油某炼化公司积极开展残渣型船用... 为控制船用燃料油在燃烧过程中产生的污染,国际海事组织(IMO)于2020年1月1日起强制执行新的硫排放限制法规,将全球范围内的船用燃料油的硫含量限制在0.5%(质量分数)以下。为应对新的燃料油市场形势,中石油某炼化公司积极开展残渣型船用燃料油的调和研究。对照GB17411—2015船用燃料油标准,针对炼厂减压渣油、催化油浆、焦化蜡油、脱蜡油等低值重油进行化验分析,结合本公司炼油结构及市场行情,优选出可能用于船用燃料油RMG380的调和组分。开发公司内部条件下调和成本最低且可行的船用燃料油调和方案,根据调和方案调和出满足残渣型船用燃料油标准RMG380指标要求的产品,为工业化生产提供可行的方案。 展开更多
关键词 船用燃料油 低值重油 调和
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基于SOFC/GT和掺氢天然气的综合能源系统性能研究及经济性分析
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作者 孙浩哲 张辉 +2 位作者 盛明珺 戴申华 王玉璋 《动力工程学报》 CAS CSCD 北大核心 2024年第9期1493-1502,共10页
提出了一种以固体氧化物燃料电池(SOFC)/燃气轮机(GT)为原动机,以掺氢天然气为燃料的综合能源系统。建立了风光发电和制氢设备、SOFC/GT系统、冷热电能源转换和存储设备、碳捕集设备等多种类型能源利用设备的数学模型,在考虑多种负荷平... 提出了一种以固体氧化物燃料电池(SOFC)/燃气轮机(GT)为原动机,以掺氢天然气为燃料的综合能源系统。建立了风光发电和制氢设备、SOFC/GT系统、冷热电能源转换和存储设备、碳捕集设备等多种类型能源利用设备的数学模型,在考虑多种负荷平衡约束、设备运行约束和“双碳”目标约束的情况下研究了综合能源系统的性能与经济性。结果表明:随着燃料掺氢比的增加,SOFC/GT系统发电效率从60.36%增加到64.79%,综合能源利用率从87.80%增加到90.80%;系统使用可再生能源制氢时,碳排放量最低,尽管考虑了碳交易收益,但高昂的制氢成本导致系统运行成本最高。 展开更多
关键词 综合能源系统 固体氧化物燃料电池/燃气轮机 掺氢比 经济性分析
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