Thursday, December 26, 2019

Engineering Fundamentals of the Internal Combustion Engine

Engineering Fundamentals of the Internal Combustion Engine . i Willard W. Pulkrabek University of Wisconsin- · .. Platteville vi Contents 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 Mean Effective Pressure, 49 Torque and Power, 50 Dynamometers, 53 Air-Fuel Ratio and Fuel-Air Ratio, 55 Specific Fuel Consumption, 56 Engine Efficiencies, 59 Volumetric Efficiency, 60 Emissions, 62 Noise Abatement, 62 Conclusions-Working Equations, 63 Problems, 65 Design Problems, 67 , 3 ENGINE CYCLES 68 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 Air-Standard Cycles, 68 Otto Cycle, 72 Real Air-Fuel Engine Cycles, 81 SI Engine Cycle at Part Throttle, 83 Exhaust Process, 86 Diesel Cycle, 91 Dual Cycle, 94†¦show more content†¦It provides the material needed for a basic understanding of the operation of internal combustion engines. Students are assumed to have knowledge of fundamental thermodynamics, heat transfer, and fluid mechanics as a prerequisite to get maximum benefit from the text. This book can also be used for self-study and/or as a reference book in the field of engines. Contents include the fundamentals of most types of internal combustion engines, with a major emphasis on reciprocating engines. Both spark ignition and compression ignition engines are covered, as are those operating on four-stroke and two-stroke cycles, and ranging in size from small model airplane engines to the largest stationary engines. Rocket engines and jet engines are not included. Because of the large number of engines that are used in automobiles and other vehicles, a major emphasis is placed on these. The book is divided into eleven chapters. Chapters 1 and 2 give an introduction, terminology, definitions, and basic operating characteristics. This is followed in Chapter 3 with a detailed analysis of basic engine cycles. Chapter 4 reviews fundamental thermochemistryShow MoreRelated The Physics of a Diesel Engine Essay921 Words   |  4 PagesDiesel Engine The world we live in is surrounded by diesel engines. They are on the freeways, railways, airways, and are one of the leading electricity producers in the world. They are also becoming more popular in automobiles. These engines are efficient and reliable and they are getting very sophisticated. However, the physics behind these engines has not changed. By way of definition, courtesy of Diesel Engine Engineering: [a] diesel engine is an internal combustion engine in whichRead MoreThe Car Of The Future879 Words   |  4 Pagesintroduction of the model T car in 1908, internal combustion engines are the primary engines used for cars and other vehicles in the world today (â€Å"Model T†). These engines are in the same vehicles that people use every day and fill gas with to fulfill their needs. The world fossil fuel and global warming crises ask for an alternative that reserves energy and lowers emissions. That alternative is the electric engine. The recent innovations in electric engineering have made electric vehicles more energyRead MoreSample Resume : Amity School Of Engineering1003 Words   |  5 PagesSCHOOL OF ENGINEERING SUBMITTED TO:- SUBMITTED BY:- Mr. Nilesh Kr. Dokania Shubham Kumar A12405413027 B.Tech (MAE) INTERNAL COMBUSTION ENGINE I C ENGINE is an engine, where the combustion of fuel ( in general fossil fuel ) occurs with an oxidizer ( usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an I C ENGINE, the expansion of the high pressure and high pressure gases produced by combustion applyRead More(Non-Wind Powered) Self-Propelled Vehicles1816 Words   |  8 Pagesis a wheeled  motor vehicle  used for  transporting  passengers, which also carries its own  engine  or motor [1]. Many of the denominations for automobiles include motor car, auto car, or car. Numerous dictionaries and sources that define the word automobile, state that they run on an internal-combustion engine. While this is true, not all automobiles run on gasoline or petroleum. The electric car and steam engines have shown that many alternatives exist to power vehicles. Dictionaries also affirm thatRead MoreThe Engine And Internal Combustion2047 Words   |  9 PagesReverend Robert Stirling patented an engine that produced motive power from heated air that is known today as the Stirling Engine. In general terms, the Stirling Engine is an external combustion heat engine that functions t hrough piston motion resulting from the expansion and compression of a working gas sealed within the engine. Invention of this technology predates the gasoline and Diesel engines and significantly differs from internal combustion heat engines. It was not until April of 1945 thatRead MoreMechanical Engineering Applied For Vehicles : Past, Present And Future1765 Words   |  8 PagesMechanical Engineering Applied In Vehicles: Past, Present and Future Lidong Chen, Xiaotong Du and Zeyu Cheng Introduction Mechanical engineering is an applied discipline which is based on related natural and technical science and combined with technical experience from production practice, aiming to research and solve both theoretical and practical problems in machine’s design, exploitation, fabrication, application and maintenance. Mechanical engineering is a useful subject in many aspectsRead MoreThe Human Race : A Great Deal Over The Course Of Recent History Essay1050 Words   |  5 Pagescontribution and importance. One of the fundamental bases behind these engineering feats is the harnessing of energy sources, such as electrical and heat energy. This has allowed for many innovations, for example power stations, transportation, communications and computers, which have all become critical to society and the modern world in which we live. 1 – Introduction It is almost impossible, today, to look around you and not see the products of engineering, pretty much regardless of whereRead MoreKkkkkkkkkkkkkkkkkkk6406 Words   |  26 PagesAutomotive Engineering Advising Document Master of Engineering in Automotive Engineering CURRICULUM Systems Engineering Core Engineering Electives Management and Human Factors Automotive Engineering Seminar and Capstone Project TOTAL PROGRAM: Semester Credit 9 9 6 6 30 The M. Eng. Degree in Automotive Engineering requires a total of 30 credits—27 of which must be letter (A-E) graded. A minimum grade point average of 5.0/9.0 (â€Å"B† average) is required for graduation. Of the 30 credit hours, 24Read MoreDescription Of The Prototype Model2754 Words   |  12 Pagesimproved exhaust model includes the exhaust header of the car, turbulence unit, catalytic converter which basically changes the chemical composition of the exhaust emission gases, resonator, muffler, tail pipe etc. However, the entire setup includes the engine, fuel tank, radiator, self starting key, exhaust system etc. Several flanges has been provided to clamp the turbulence unit in between the exhaust pipe trailing from the exhaust header and the catalytic converter. Different designs of the turbulenceRead MoreEssay on The History of Transportation1835 Words   |  8 Pagestransporters we hope to have in the distant future. The idea of moving ourselves from one place to another has always been a prominent concept in our dinky little brains. Whilst that generalization seems simple, the amount of effort, determination, and engineering prowess that is implemented to achieve such a feat is in fact, the exact opposite of simple. The mechanical wonders (that can be classified as whimsical, in my eyes) that exist for the purpose of transporting anything and everything all derive from

Tuesday, December 17, 2019

The Debate Of Embryonic Stem Cell Research - 1969 Words

Embryonic stem cell research and use is a scientific advancement that could change medical history. There are two types of stem cell research, adult stem cells, and embryonic stem cells. Embryonic stem cells receive a very negative connotation in society, and there are many misconceptions about the process and the ethics of embryonic stem cell research. A large majority of society immediately assume that it is the use of aborted embryos because of the word embryonic, and adult stem cells are not as effective as embryonic. However, this is not the case. Embryonic stem cell research is in progress to help cure and reduce the effects of very fatal and harmful diseases that take many of societies precious lives. If research continues to†¦show more content†¦In 2009, a relief for scientists came about because President Obama lifted the restrictions (Coghlan). This then enabled the progression of embryonic stem cell research to help cure and reduce the harmful effects of many dise ases in people. Whether embryonic stem cell research is ethical is a very controversial subject because many people assume it is aborted embryos that are destroyed to be experimented on. It then also bothers people that the embryos have to be destroyed to have tests run on them, but the process is very specific and carefully done so it eliminates any reason for it to become unethical. California’s Stem Cell Agency provides an understandable explanation of the embryos used for research in the lab: All the human embryonic stem cell lines currently in use come from four to five-day-old embryos left over from in-vitro fertilization (IVF) procedures. In IVF, researchers mix a man s sperm and a woman s eggs together in a lab dish. Some of those eggs will become fertilized. At about five days the egg has divided to become a hollow ball of roughly 100 cells called a blastocyst which is smaller than the size of the dot over an â€Å"i†. (Myths and Misconceptions About Stem Cell Research.) The process is deemed ethical because the embryo is only made up of 100 cells and it is not evenShow MoreRelatedThe Debate Of Embryonic Stem Cell Research1460 Words   |  6 Pages I believe that embryonic stem cell research should be allowed in the United States. From previous encounters with the topic I have learned that the many benefits that can come from stem cell research are without a doubt astounding and unimaginable. There are simply endless possibilities that can arise if the research was allowed to be conducted. From giving back vision to rebuilding tissue, any advance in stem cell research would be beneficial to the medical world. With the help that the advancesRead MoreThe Debate Of Embryonic Stem Cell Research1711 Words   |  7 PagesEmbryonic stem cell research is a hot topic of debate in our modern age, as scientific development continues to push the boundaries of ethics. The debates lies in whether or not it is helping or hindering society, as the procedure involv es the manipulation of a human embryo. Embryonic stem cells (ESCs) are derived from a week old human embryo (blastocyst), often developed from unused in vitro fertilised eggs. They are pluripotent, meaning they are capable of undergoing directed differentiation andRead MoreThe Debate Of Embryonic Stem Cell Research931 Words   |  4 Pages Embryonic stem cell research is the study of stem cells derived from the undifferentiated inner mass cells of a human embryo. For many years now, the ethics of embryonic stem cell research has been argued. A recent advance in this line of research is the ability to clone the embryonic stem cells, which allows for researchers to create a completely compatible embryonic stem cell to the individual’s tissue type. Though this new science may be very beneficial, not everyone can agree on the ethics ofRead MoreThe Debate Over Embryonic Stem Cell Research852 Words   |  4 Pagesknowledge of stem cell research has already created the ability for doctors to print a functional organ jus t as easily as people can print a persuasive research essay. With great medical advancements comes great controversy. The main way researchers have been studying stem cells is by harvesting undifferentiated embryonic stem cells. Those who oppose embryonic stem cell research claim that stem cell harvesting damages and kills the un-born embryo; however, because of advancements in the stem cell harvestingRead MoreThe Ethical Debate of Embryonic Stem Cell Research2359 Words   |  10 PagesStem cell research is often at the forefront of heated ethical debates due to its assessment of human life. If stem cell research cannot be ethically defended, then it should not be conducted. â€Å"You cannot defend a study ethically unless the presumed cost is lower than expected benefits. The cost-benefit analysis of scientific research needs to include human/animal discomfort/risks, environmental issues, material costs, etc† which is necessary to support the positive outcome which the rese arch claimsRead MoreThe Debate Over Embryonic Stem Cell Research1652 Words   |  7 PagesEmbryonic stem cell research could one day hold the key to many new scientific discoveries if it is continuously funded in the years to come. I chose to base my research around the question, Should embryonic stem cell research be government funded? When I finish highschool I hope to pursue a career in the medical field. Although I wish to become a doctor and may not be directly researching stem cells, they may one day be a treatment that I will have to administer to patients. To answer this questionRead MoreThe Debate Over Embryonic Stem Cell Research1543 Words   |  7 PagesWhile embryonic stem cell research has been ongoing for more than 30 years, it has only become a controversial topic over the past decade. The embryonic stem cell was first isolated in 1981 by two scientists at the University of Cambridge. However, it wasn’t until 1998 at the University of Wisconsin, Madison, whe re the first batch of embryonic stem cells were created in a test tube. In 2001, President George W. Bush approved the use of federal funding for research on this topic, following this actionRead MoreThe Debate Of Embryonic Stem Cell Research1292 Words   |  6 PagesEmbryonic stem cells research is the most debated type of stem cell research. The moral standings of embryonic stem cell research have been debated since the research started. The side against the research claims that it is wrong to value one’s life above another and that the elimination of the most basic form of life is murder. While the side supporting the research claims that the research could bring about the cure for many types of diseases and help save the lives of millions. Embryonic stemRead MoreThe Debate Over Embryonic Stem Cell Research1907 Words   |  8 PagesApril, 2017 Embryonic Stem Cell Research Imagine living in a world without cancer, Parkinson s, or even diabetes. While everyone may wish this is true, people are against a way that researchers can make this possible, which would be by the use of stem cells. There is major controversy on whether or not stem cell research should be allowed, especially when it comes to embryonic stem cell research. Although many consider it to be killing a potential life form, embryonic stem cell research may eventuallyRead MoreThe Debate Over Embryonic Stem Cell Research1710 Words   |  7 PagesEmbryonic Stem Cell Research Embryonic stem cells, according to the National Institute of Health, are cells obtained from embryos that are prepared from fertilized eggs which have been collected through the in vitro technique; in specialized clinics. Scientists use the stem cell research to have a better idea about the evolution, aging, and disease. Thus, they keep track of the stem cells progress across the lifetime; this tracking process can help scientists to figure out the genetic mutations

Monday, December 9, 2019

Mythology Sisyphus Essay Example For Students

Mythology Sisyphus Essay Sisyphus was given a punishment by the gods, to push a rock up ahill, only to have it fall down on him again. Mersault is a personaccused of murder who has spent over a year in jail. What both thesecharacters have come to realize is that they are forced to live in thesesituations created by the gods, therefore they might as well enjoy orget used to them. Mersault is forced to live in a cell, without his cigarettes,and with limited visitation rights. When this happens, Mersault recallswhat his mother told him. She said, One gets used to everything. WhenMersault realizes he is not going to get out of jail, he becomesindifferent, just like he always does, and accepts his situation,searching for any positive aspects to his incarceration. He defiespunishment by accepting his situation and enjoying himself in jail. Therefore, the whole point of Mersault going to jail is obliterated. When Mersault is condemned to death, he does not act surprised, althoughhe wishes he did not have to die. After a while he also accepts that. Itdoes not matter to him that he is dying, so long as he is dying for apurpose. Sisyphus is damned for eternity to roll a rock up a hill. If hewere to view his fate decreed upon him as punishment, for the rest offorever, then he would only sicken an already terminally ill situation(speaking metaphorically of course). Sisyphus starts to find meaning inhis work, starts to enjoy his work, almost to take pride in his work,like a true laborer. Mersault is like Sysiphus, in many ways. The only real notabledifference is that Sisyphus has been punished by the gods, whereasMersault does not believe in god. Mersault is indifferent to hissituation, as is Sisyphus, as apparent from Camus description. Mersaultand Sisyphus both expressed a love for life (Mersaults heart jumped atthe idea of being pardoned, Sisyphus is being punished due to hisdesire to stay in the real world). And most importantly, Mersault andSisyphus both defy their detractors. They overcome their rulers. Mersault does not do it to prove anything to anybody. He just does itbecause it would be pointless to act any other way. With Sisyphus he canhold his head higher than the gods now, his work has ceased to bepunishment, the gods have lost, he has won. For Mersault and Sisyphus to overcome their struggles, they hadto be placed in one. Their background for reaching their struggle iswhat makes them unique. Recalling such people with differentphilosophies, like the Denver Nuggets most explosive playerMahmoud-Abdul Rauf, who believes in not standing up for something hedoes not believe in, he has shown that by standing up for a differentphilosophy than most people believe in can lead to rejection andtragedy. What was special about Mersault was where his priorities lay,which made him think different from everybody else, therefore enablingthe world to brand him. Mersault is the anti-Christ because he smokedand drank coffee at his mothers funeral. Sisyphus was not regarded by asociety as a vile person, but he was not accepted, he did not haveinteraction with them. These odd situations placed them both instruggles for their un-redeemable acts. Mersault converses with the warden to discover that prisondeprives one of freedom.† He understands that incarceration ispunishment, just as Sisyphus did. They both move on to view theirpositions from a different perspective. Sisyphus moves from his positionof sadness, to a position of happiness, mainly, in my view, to defy thegods, therefore it is not true happiness just defiance. He †¦obeysfate without knowing it, as Oedipus did. Similarly Mersault accepts hisimprisonment with the same kind of indifference that he takes everythingelse. Mersault, in fact, makes his own freedom by hanging on to hismemories, he overcomes imprisonment, because he really is not imprisonedanymore. .u1891ddff2bcc24b66492d5cab5221668 , .u1891ddff2bcc24b66492d5cab5221668 .postImageUrl , .u1891ddff2bcc24b66492d5cab5221668 .centered-text-area { min-height: 80px; position: relative; } .u1891ddff2bcc24b66492d5cab5221668 , .u1891ddff2bcc24b66492d5cab5221668:hover , .u1891ddff2bcc24b66492d5cab5221668:visited , .u1891ddff2bcc24b66492d5cab5221668:active { border:0!important; } .u1891ddff2bcc24b66492d5cab5221668 .clearfix:after { content: ""; display: table; clear: both; } .u1891ddff2bcc24b66492d5cab5221668 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u1891ddff2bcc24b66492d5cab5221668:active , .u1891ddff2bcc24b66492d5cab5221668:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u1891ddff2bcc24b66492d5cab5221668 .centered-text-area { width: 100%; position: relative ; } .u1891ddff2bcc24b66492d5cab5221668 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u1891ddff2bcc24b66492d5cab5221668 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u1891ddff2bcc24b66492d5cab5221668 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u1891ddff2bcc24b66492d5cab5221668:hover .ctaButton { background-color: #34495E!important; } .u1891ddff2bcc24b66492d5cab5221668 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u1891ddff2bcc24b66492d5cab5221668 .u1891ddff2bcc24b66492d5cab5221668-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u1891ddff2bcc24b66492d5cab5221668:after { content: ""; display: block; clear: both; } READ: Drug Use Essay Mersault can be considered a real world interpretation ofSisyphus, only a lot different and emotionless. Mersault has neverreally expressed a desire for anything, whereas

Monday, December 2, 2019

Why People Commit Crime Essay Example

Why People Commit Crime Paper Question 3: People committed crime because of many reasons. From your own point of view, give three (3) reasons why people commit crimes? A crime is an illegal action or activity for which a person can be punished by law. Some people define crime as an act of offence towards the morality of humans. Others might regard crime as an act that harms the universal human rights. Therefore, why do people still commit crimes? There are many reasons why people commit crimes. Some crimes were committed because of hunger, need money, hatred and anger. Meanwhile, the example of crime is robbed, kidnap, burglary, steal and other. The most serious crime is killing another person although their beloved one or their family. Crime is not known about the love and sympathy towards the victim. The first reason is people commit crimes because of their hunger. They steal the food from stall and also from market to fulfill their stomach. This is because they don’t have enough money to buy it. And also the price of food is expensive. For example, the price for one piece of chicken is RM2. 50. The price had burden for certain people. So, they commit to do crimes as their stomach full and not hunger again. We will write a custom essay sample on Why People Commit Crime specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Why People Commit Crime specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Why People Commit Crime specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Usually, a poor parents steal the food for their children to make them silent crying from hunger. Move on to the next point, the other reason why people commit crimes because of the money. All people need money for survive their life. Nowadays, people just only see who only had money and they will ignore about the people that under privileged. Otherwise, people need money because they want to pay the debt. Also they need in fast time and don’t know where to get it. So, they will rob at the bank and the luxurious house. Sometimes, it can be a serious crime when they kill the owner of a house or the employee at the bank. They do not care about the victim as they get the money. Moreover, the drugs addict that kill their blood family for buy drug. Last but not least, people commit crimes because of their anger and hatred. It also can be called as their selfish reason. This happen when the one person doing something out of control to other person. For example, the current issues at school like bullying. So, the bullying victim will revenge to the person that had bullying him/her. This may make serious crime like killing someone or beat their organ until paralyzed for the rest of life. As a conclusion, people commit crime because of their self. They need to control their emotion and know what they do is a wrong way and not good for their next generation. In addition, it gives bad influence and the crimes cannot be banned again. So, the government must play their best role to give the punishment to the criminal like a death penalty for the drugs addict and serious crimes. The reason why people commit crime because of their hunger, need money, anger and hatred can be solve if each of people give the best commitment and not to selfish. (505 words)