1. Title: Analysis of the Relationship between New Energy Development and Environmental Protection II. Topic source: Network Reference 3. Topic type: graduation project 4. Abstract: The development and popularization of motor vehicle industry has brought a lot of convenience to people's lives. However, with the increasing number of motor vehicles, the impact of exhaust pollution on urban environment is becoming more and more obvious. This paper analyzes the present situation of motor vehicle pollution and discusses the measures and methods to control motor vehicle emissions. This paper will discuss the relationship between urban environmental pollution, new energy vehicles and the development of new energy vehicles and environmental protection, and put forward some suggestions on the environmental protection of related new energy vehicles. [Keywords:]: environmental pollution, automobile exhaust, new energy vehicles. Main reference materials for reading:
[1] Kang Longyun. New energy vehicles and power electronics technology. Beijing: Machinery Industry Press, 2006.07 [2] Bian. Automotive New Energy Technology. Beijing: People's Communications Press 2007.03 [3] Shao. Modification and maintenance of compressed natural gas vehicles. Beijing: People's Communications Press 2004.09 [4] Cai Fengtian. [5] Cui Automobile People's Communications Press 2005.0 1. New energy vehicle technology. Beijing: Peking University Press 2009.09 [6] Shao. New energy and energy-saving technologies for automobiles. Beijing: People's Communications Press, 2008.08 [7] Huang Jiacheng. Automotive New Energy Technology. Beijing: People's Communications Press 2009.06 VII. Solve problems by looking for information. Viii. Main design stages and progress1.201March1March 15: Topic selection for graduation thesis. 2.201March 16 to March 30, 20 10: Read relevant materials and conduct online surveys. 3.20 1 April1April 10: Start writing papers based on reading and investigation materials. 4.201April1April1April 12: Paper revision and binding. Nine, the instructor comments
. . . . . . . . . . . . Graduation thesis assignment: 1, graduation thesis (design) topic: analysis of the relationship between new energy development and environmental protection; 2. Time limit for students to complete all tasks: 201April 12 3. Task requirement: (1) Process requirement: 1. Put forward a preliminary idea of the topic. Collect and sort out sufficient and accurate information related to graduation project or thesis, and expand the reference scope. 3. Analyze and screen the existing information, and put forward research ideas and plans. 4. Submit the opening report to the lecturer (see attached page). 5 conceive the framework of the paper, write the outline of the paper and write the first draft of the paper. Submitted to the instructor for review, and further revised according to the teacher's guidance, bound into a book. (2) The graduation design of grade requirement 1 shall be submitted with design drawings and corresponding specifications. Drawings should be standardized, complete, clear and correct, and the format should meet the requirements of national standards; Instructions should be standardized and detailed, including: task book, opening report, text (abstract, text content, conclusion, references), appendix, etc. Write carefully and clearly, not less than 8000 words. Mainly includes: preface, abstract, text content. Graduation thesis should include: task book, opening report, text (preface, abstract, keywords, text content, conclusion, references), appendix, etc. Write carefully and clearly, and the number of words should be around 15000. 4. Experiment (investigation) part requirements: (1) The experiment content is consistent with the topic of the paper, and the data is true. (2) The research content is detailed, and the research conclusion should be universal. 5. Literature review and translation requirements: (1) References should be consistent with the contents of the paper. (2) No less than 8 references. (3) The format of references refers to the requirements of graduation thesis format of Fushun Vocational and Technical College. (4) The translated document should be consistent with the original content. 6. Date of Issue: February 27, 2009
Teacher: (signature) Student: (signature)
Analysis of the Relationship between New Energy Development and Environmental Protection Graduate School: Department: Department of Mechanical and Electrical Engineering: Automobile Inspection and Maintenance Instructor: Last Name: Student Number:
Abstract: The development and popularization of motor vehicle industry has brought a lot of convenience to people's lives. However, with the increasing number of motor vehicles, the impact of exhaust pollution on urban environment is becoming more and more obvious. This paper analyzes the present situation of motor vehicle pollution and discusses the measures and methods to control motor vehicle emissions. This paper will discuss the relationship between urban environmental pollution, new energy vehicles and the development of new energy vehicles and environmental protection, and put forward some suggestions on the environmental protection of related new energy vehicles. [Keywords:]: environmental pollution, automobile exhaust, new energy vehicles
Preface to the catalogue-65438. -22. 1 carbon monoxide (CO) -32.3 hydrocarbons. -33. Harm of automobile pollution to human health. 34. New energy sources. -4.4 vegetable oil fuel car -54.5 solar car. -54.7- A car with a pool. How many kinds of energy products are there? -76. To what extent is China short of oil? What is the way out to solve the oil problem? -87. How important is energy saving? -98. China attaches importance to the development of new energy-saving and clean vehicles. -10 10. Environmental protection technology of new energy vehicles. -10/0.64380010.2ng dual-fuel vehicle-106544. 1. Development status of new energy vehicles-10 12. How far is the new energy vehicle from the people? -12 reference.
Since 1885, the world's first internal combustion engine car was born, petroleum-fueled cars have promoted the automobile civilization of human beings for more than 100 years and made great contributions to social progress. These are objective facts that cannot be denied. But cars, like anything in the world, have two sides, that is, they bring great benefits to mankind, but also have negative effects that cannot be ignored. Automobile pollution mainly refers to automobile exhaust pollution, followed by noise pollution. 1. Automobile exhaust The Chinese Academy of Preventive Medicine recently made a detailed analysis of automobile exhaust, and found that automobile exhaust contains thousands of chemicals, but the main component is carbon monoxide, which is the product of insufficient fuel combustion. The pollution of cars to the environment should not be underestimated. It is urgent to develop new energy vehicles to protect the environment.
1. More and more cars cause urban air pollution. After 20 years of reform and opening up, the number of private cars in China has increased rapidly, and cars have begun to enter the family life of ordinary people. 200 1 After China's accession to the World Trade Organization (WTO), China has reduced the import tariff on automobiles from 70-90% to 44-5 1%, and will further reduce it to 25% by 2005. With the decline of car prices and the low car ownership rate of China people, the car market in China will further prosper. Therefore, the problem of automobile exhaust emission is more serious. China has 20 million cars and 654.38 billion motorcycles, most of which are in cities. Among urban environmental pollutants, nitrogen oxides emitted by automobiles account for 45-60%, and carbon monoxide accounts for 85%. Therefore, the poor air quality inhaled by urban residents in China is mainly caused by the exhaust gas emitted by automobiles. At present, China's energy structure is dominated by coal, and coal consumption has accounted for more than 75% of the total energy consumption in recent years. Because 80% of coal consumption is directly burned by raw coal, the resulting environmental pollution problem has affected the sustainable development of the national economy. Improving the energy consumption structure dominated by coal is an urgent requirement for China's economic development and environmental protection. However, China's coal-based energy consumption structure is determined by energy resources. In China's energy resources, coal has an absolute advantage. If the total amount of conventional energy resources is 100, then coal resources are above 85%, water energy accounts for 12, and oil and natural gas only accounts for 2-3. For a long time, China's energy production pattern has been dominated by coal, and the coal industry will still play an irreplaceable role in the whole energy process in the future. In order to complete the task of "improving the energy production and consumption structure" proposed in the 11th Five-Year Plan and the 20 10 long-term target outline, we should focus on the production, processing and utilization of coal, with emphasis on increasing the proportion of raw coal washing, reducing the direct combustion of raw coal, increasing the coal used for secondary energy production such as power generation and gas production, and accelerating the research and application of clean coal technology. Its core is to improve the economic benefits of energy utilization through structural optimization, minimize environmental pollution, and maintain the coordinated and sustainable development of economy and environment. 2. Harm and mechanism of main pollutants in motor vehicle exhaust 2. 1 carbon monoxide (CO)CO is a colorless and odorless asphyxiating toxic gas with low chemical reaction ability, and its relative density to air is 0.9670, and its solubility is very small. Inhalation of excessive carbon monoxide can lead to shortness of breath, purple lips, dyspnea and even death. Long-term inhalation of CO is a potential threat to the health of urban residents. Its formation is mainly affected by the concentration of mixed gas. Under the condition of local hypoxia or low temperature, the carbon in combustion can not be completely oxidized to produce CO2, while CO is produced as an intermediate. 2.2 nitrogen oxides (nitrogen oxides) nitrogen oxides are produced in most gases in the cylinder of internal combustion engines, and the emission of nitrogen oxides depends on combustion temperature, time, air-fuel ratio and other factors. After nitrogen oxides enter alveoli, they can form nitrous acid and nitric acid, which violently stimulate lung tissue, increase the permeability of pulmonary capillaries, and finally cause emphysema. 2.3 Hydrocarbons Although the content of hydrocarbons in automobile exhaust is very small, its composition contains a strong carcinogen recognized by the world. 2.4 Lead cars mainly run by burning gasoline (diesel), which is a flammable and explosive liquid. In order to prevent explosion, people often add antiknock agent-tetraethyl lead to gasoline. Lead in automobile exhaust can easily accumulate in human liver, kidney, spleen, lung and brain for a long time through blood, and then cause chronic harm, especially lead, once it enters human brain tissue, it will closely adhere to the key parts of brain cells, leading to mental retardation and heme manufacturing obstacles. Harm of automobile pollution to human health Automobile pollution mainly refers to automobile exhaust pollution, followed by noise pollution. 1. Automobile exhaust The Chinese Academy of Preventive Medicine recently made a detailed analysis of automobile exhaust, and found that automobile exhaust contains thousands of chemicals, but the main component is carbon monoxide, which is the product of insufficient fuel combustion. The slower the speed, the more emissions. 90% of carbon monoxide in big cities comes from automobile exhaust. Its binding capacity with human hemoglobin is 250 times that of oxygen; It is seriously harmful to people's respiratory and circulatory systems. Nitrogen oxides are mainly nitrogen dioxide produced under high temperature combustion conditions. It is very toxic to people and plants, which can cause respiratory tract infection and asthma, and reduce lung function. It will also produce photochemical smog with hydrocarbons, which will damage people's eyes. The ammonia nitrogen compounds emitted by diesel vehicles are far more serious than those of gasoline vehicles, and the particulate matter in the exhaust gas is 2-40 times higher than that of gasoline vehicles. At present, benzo а pyrene has separated more than 300 polycyclic aromatic hydrocarbons from automobile exhaust, among which benzo а pyrene is recognized as a strong carcinogen, and the pollution of benzo а pyrene is particularly serious at busy intersections and their vicinity. Long-term inhalation of lead-containing air can cause chronic lead poisoning, with symptoms such as headache, dizziness, general weakness, insomnia and memory loss. In addition, there are many toxic substances such as formaldehyde and sulfur dioxide. Secondly, the noise generated by automobile engines will have a bad influence on people's hearing and physiological functions, making people fidgety. Living in an environment with serious noise pollution for a long time will affect their study, work and health. 4. Types and principles of new energy vehicles 4. 1 Alcohol fuel vehicles Alcohol fuel vehicles use methanol, ethanol and other alcohol substances as fuel, which has good vaporization and flammability and is a good fuel equivalent substitute. When methanol is mixed with gasoline to achieve long-term stable use, corresponding additives must be selected to inhibit its polarity and activity. Ethanol production technology is relatively mature, and its latest technology can use almost all agricultural and forestry wastes, urban domestic organic wastes and industrial organic wastes as raw materials, which is widely used. It can be driven by flexible fuel mixed with gasoline or diesel oil in any proportion, without engine modification, and has high thermal efficiency, which can play a very good role in energy saving and emission reduction, reducing automobile exhaust pollution by more than 30%. Of course, if this kind of mixed fuel wants to obtain the power equivalent to gasoline or diesel, it must increase the fuel injection quantity and change the compression ratio and ignition advance angle of the engine accordingly. At present, the technology of using corn, wheat and molasses as ethanol and blending ethanol gasoline is relatively mature in the world. The United States began to make ethanol gasoline from corn in the 1970s, and by the end of 2003, it had more than 2.3 million ethanol vehicles. All cars in Brazil use ethanol gasoline as clean fuel. 4.2 Ether fuel vehicles Ether fuel vehicles mainly refer to dimethyl ether vehicles (DMEV), which use dimethyl ether (DME) as fuel. DME is a colorless and odorless gas with excellent combustion performance and good power performance. It is liquid when it is slightly pressurized, so it is very suitable as an alternative energy source for compression ignition engines. At the same time, DMEV is clean, with little pollution, and will not emit black gas to pollute the environment. The NOX produced is 20% less than that of diesel, which can meet California's ultra-low emission standards. NKK Company of Japan has successfully developed the equipment for producing dimethyl ether from inferior coal, and completed the experiment of dimethyl ether as automobile fuel with Sumitomo Metal Industry Company in 1998. 4.3 Pneumatic Cars Pneumatic cars are cars that use compressed air, liquid air, liquid nitrogen, etc. As a medium, it provides driving energy through endothermic expansion. It does not produce combustion or other chemical reactions, but discharges air or nitrogen, which has no pollutant radiation and realizes zero pollution. At present, the compressed air powered vehicle (APV) has been successfully developed. Its energy comes from convenient and clean high-pressure air, which has low requirements for engine materials, simple structure, short research and development cycle, low cost of social infrastructure construction and easy design and construction. However, the disadvantages are that the energy density and energy conversion rate are not high enough, the driving range is still short, and the performance of the whole vehicle is far from that of the traditional car, so it can only be used in a small range of specific occasions. In 2000, the APV introduced by MDI Company has a mass of only 700kg, a speed of 120km/h, and it can travel 200km once filled with compressed air, and the inflation cost is only 0.30 USD. I wrote it myself. It's definitely a manuscript . . .