The Physics of a Diesel Engine Essay - 921 Words

The Physics of a Diesel 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 which the chemical energy of fuel is transformed into thermal energy of the cylinder charge, in consequence of the self-ignition and combustion of fuel in the engine cylinder after compression of the air charge in the cylinder (p1†¦show more content†¦The piston then travels down pulling in fresh air, (third stroke), after the piston bottoms again it travels up compressing the fresh air, (fourth stroke). The fuel is then injected and one cycle is completed in 720 degrees or two full rotations of the crankshaft. The disadvantage of two-stroke engines is their dependency on a blower to force air into the chamber and their inefficiency. A four-stroke engine does not have an expansion stroke every 360 degrees but it is more efficient because it has more time to completely burn the fuel injected into the cylinder. There are mechanical and fundamental differences between the two-stroke and four-stroke engines but the physics remain the same. They both rely upon the compressed air to ignite the pressurized fuel and the resulting expansion for their power. At first glance it may look like the explosion in the chamber does the work but upon further inspection you can see the physics involved. There are two questions I would like to address. The first question is what is the physics behind the compressed air raising the temperature upwards of 900 degrees. The second question is what is the physics behind the rapid expansion of the ignited air fuel mixture. The physics behind the temperature increase of compressed air begins with a fresh charge of air. The air fills the combustion chamber when the cylinder is at bottom dead center. As theShow MoreRelatedThe Stroke Combustion Cycle ( Ice ) Revolutionized The Way The Man Think And Moves1352 Words   |  6 PagesInternal Combustion Engines (ICE) revolutionized the way the Man think and Moves. Internal Combustion Engines are also significantly more efficient than the well-known steam engine. Today it has better power than electric batteries and motors, and offers similar overall efficiency. Small, lightweight ICE made personal transportation possible. It transformed how we built cities and did business. Engines are so important for the advancement on any society, nowadays without engines it will be much harderRead MoreOccupational Medicine And Occupational Health1571 Words   |  7 Pagesindustrial hygienists is to make opinions to correct, reduce, or eliminate workplace hazards in the ar eas of chemical, biological, or physical exposure. Professional industrial hygienists are required to be educated in chemistry, biology, engineering, physics, or specifically in industrial hygiene in order to be able to comply with monitoring and controlling the use of toxic and hazardous substances. Some of the tools used in industrial hygiene are respirators and medical surveillance necessary to approachRead MoreWhat Does Thermodynamics Affect The World?1458 Words   |  6 Pagesaround us. This is very important because thermodynamics is understanding heat, and without heat, humans would not be able to survive. Something more familiar to you, like Newton Laws of Physics, takes a look at the big picture of physical motion and how it effects the world around us. â€Å"Thermodynamics is a branch of physics which deals with the energy and work of a system.† Without the knowledge of thermodynamics, everyday life would be much different. Thermodynamics were used to designed and manufacturedRead MoreUse Of Diesohol As A Substitute For Diesel1670 Words   |  7 PagesIn our world today diesel engines have become a substantial part of the society, being used in buses, trucks, locomotives, tractors, and so on. Scientist has been seeking ways of improving the efficiency of diesel engines by developing and testing alternative fuels. Recent studies explore the use of diesohol as a substitute to diesel. Diesohol are classified as â€Å"a mixture of diesel fuel and anhydrous alcohol blended using a chemical emulsifier,† (Environmental Protection Agency, 2003).However a majorRead MoreThe Use Of Port Injection Gasoline With Direct Injection Diesel Fuel2774 Words   |  12 Pagestremendous potential to be used in CI engines effectively based on the RCCI concept. Operating a CI engine in the RCCI mode has become possible as the result of new fuel system technology and engine controls. The high octane number fuel used in the literature is often gasoline or ethanol. The U.S. Department of Energy has devoted significant resources to its national laboratories to investigate the practical applications of port-injection gasoline with direct-injection diesel fuel, as seen in recent publicationsRead MoreIs Mechanical Engineering Beng At Liverpool John Moores University?1753 Words   |  8 PagesLJMU with University of Liverpool. 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Invented in England in 1814, Steam locomotive was one of the technological inventions that revolutionized the worldRead MoreBiofuels2310 Words   |  10 Pagesresources, if we focus it on producing vegetable oil using the land resources, we will greatly reduce the demand for petroleum products. .. Our engine is extremely VERSATILE, being able to run on diesel, bio-diesels, vegetable oils with very little change in power and efficiency. This will diversify the kind of fuels that can run a diesel engine and reduce the dependence on fossil fuels. †¢ ECO-FRIENDLY .. No additional Carbon Oxides are emitted into the atmosphere. .. This is because onlyRead MorePhysics for Industries1918 Words   |  8 PagesINTRODUCTION Physics attempts to describe the fundamental nature of the universe and how it works, always striving for the simplest explanations common to the most diverse behaviour. For example, physics explains why rainbows have colours, what keeps a satellite in orbit, and what atoms and nuclei are made of. The goal of physics is to explain as many things as possible using as few laws as possible, revealing nature s underlying simplicity and beauty. Physics has been applied in many industrialRead MoreApplications of Physics For Different Industries Essays1950 Words   |  8 PagesINTRODUCTION Physics attempts to describe the fundamental nature of the universe and how it works, always striving for the simplest explanations common to the most diverse behaviour. For example, physics explains why rainbows have colours, what keeps a satellite in orbit, and what atoms and nuclei are made of. The goal of physics is to explain as many things as possible using as few laws as possible, revealing natures underlying simplicity and beauty. Physics has been applied in many industrial

The Best Week For Building Educational Success - 1470 Words

The BEST week is the first week of the first year in DCU, it is stands for building educational success, and It is very an important week to recognize the DCU program. In this reflection I will write about the most important things I have learned and also the things I enjoyed it most in the BEST week, which is the information and the knowledge I received, the challenges and the teamwork. Information and knowledge: During the week we had so much information and knowledge about DCU in general and financial in particular. For instance: DCU international center. It is one of the top 50 universities under 50 around the world, which means it is a very strong university. Knowing this information motivate me in somehow and made me feel so proud and it is accomplishment being a part of this program, and I think this will help me to have higher job opportunities in the future. Actually when I went home I got curious to know more about the university so I searched about DCU and I had a look at the DCU website. Not only this, but also the information about our career opportunities like the names of the companies will hire business school international finance graduates. And that has really made me feel secure and my studies will never go in vain. I wrote the company’s names so I do not forget them later and to search about them to know more about what kind of companies I will work on it in the futu re. Also, there was 2nd and the 3rd year students who volunteered their time to help usShow MoreRelatedEssay On Building A Community Of Learners1605 Words   |  7 Pages Building a Community of Learners Melissa Saucier Arkansas State University Building a Community of Learners The idea of developing and implementing professional learning communities to improve schools is a trend across many school districts. 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Microsoft Blatantly Disregards User Choice â€Myassignmenthelp.Com

Question: Discuss About The Microsoft Blatantly Disregards User Choice? Answer: Introducation Microsoft introduces their recent operating system with new features as compared to earlier operating systems. One among this operating system is Windows 10 which was being introduced with new features but with flaws in user choice and having many privacy concerns. Users are not much happy with the usage of this new operating system as it breaches the security concerns with respect to their personal tasks and official data security. Users are considering windows 10 as just another evolution by Microsoft. Moreover, users are considering it as an unfinished product as it makes its user busy in installing upgrades forcefully instead of completing their task on the system. Ethics theory of utilitarian says that decency implies that no moral act such as an act of abducting or rule such as keeping any promise is essentially right or wrong (McGee, 2009). However, the rightness or wrongness of any act or rule is just a matter of the overall satisfaction of the user in terms of pleasure, knowledge, or individual desire initiate in following the steps of doing that act or following that rule (McGee, 2009). Therefore if the user is happy with its present state of the system then Microsoft has no rights to force the user to update to windows 10 or its updates. However, this is happening as Microsoft is forcing users machines to update their systems without any option to stop it until it completes its update. No matter whether user like to install or not. So all depends on the final consequences like the majority of users like these updates or not so as per the theory of utilitarian, windows 10 breaches this attribute of ethical theory (McGee, 2009). As per deontological ethicswhich states that responsibility is the point on which one can judge the trueness of the task which further follows some set of rules and emphasizes on duties or rules As these set of rules binds the person to complete its task with responsibility. Therefore, in case of windows 10, Microsoft is responsible for the breach of any personal or official information. Users of Window 10 are having a low level of privacy (Schwickert Miller, 2005). Here in case of windows 10, according to deontological theory users must have priority to have accurate and true features without hiding the Right content to display good features of it. If it is not so, then those good features are of no use. Therefore, information that is being stored by Windows10 feature is good, but not right as per privacy concerns (Schwickert Miller, 2005). Microsoft Windows10 is designed to support the adults to keep track of their children what they access on the system which is good, but the sa me access to information which is official breaches the privacy concerns (Schwickert Miller, 2005). As per Ongoing privacy concerns, users are arguing that Microsoft provides the services as we demand by accessing all kinds of data of our system. To exemplify Cortana is one of the features that is having the ability to look inside your emails and calendar and provides necessary notifications as you demand (Loreau, 2014). As per Virtue theory of ethics which says the moral character is very necessary. It goes like things having a specific character to complete a task like to notice, to choose something, to act, to expect and to react in certain ways only that comes under morality. In case of Windows10, Microsoft pushes their users to install the operating system with a free subscription for a year and create such pops up to update the existing windows10 with new features (Schwickert Miller, 2005). Therefore, its an act which violates morality as a user is willing or not is not the matter of concern but the thing which is important is to make the user update their system as any new update arrives. There is one drawback of virtue theory that it does not recognize the change in the moral behavior of the person. For instance, a company who made some mistake in the past may have the same case as that of good companies (Schwickert Miller, 2005). These kind of companies are not plagiarizing intentionally but still, it happens. As is Windows 10, Microsoft intention was just to update the operating system at times but the user did not feel it necessary to upgrade but Microsoft forcing the user to do so. Here a thing to be concentrated is what is the intention? Ultimately, Microsoft attracts the users of Windows 10 by providing Windows Update system. It works for users by pre-selecting the download button and starting the process of downloading on their systems (Michener, 2008). If users are still not convinced then there is other recommended update with which new operating systems will be downloaded on the user's system without their permission. While meeting any issue or problem with the existing system, users are expecting for the patch to work out for resolving the problem but Windows security update provides a whole new operating system (Michener, 2008). As per users experience, one of the actions formatted by Microsoft was an act of juggling. In actual Microsoft has changed the design of a dialog window which is a user interface and its being used and looks around the same way since the birth of the modern desktop systems (Michener, 2008). In case when a user is prompted with a Windows 10 update and user tries to decline it by pressing the No button then Microsoft automatically interpret it as positive consentto download Windows 10 (Loreau, 2014). Ethics theory of conduct points towards the agreement that the company or any individual must follow in order to live in a society which demands moral behaviour and some political obligations. Whenever any new product launched in the market some are excited to use it and many are waiting for the rolling off the first batch of product to known the users review so in this way smart users got to known about the product and company came to know about the pitfalls of the product. As per Ethics theory of conduct when a product is launched, its agreement of terms and conditions state that the product wont violates the privacy concerns of the users as in case of windows10 End user licence agreement (Michener, 2008). Microsofts privacy policy clearly states that they will use, disclose the personal data which includes the content of emails or any other private data when a company requires doing as per security concerns enforced by the government agencies. Another reason of doing so is to prot ect the users from spam or fraud attempts (Michener, 2008). They can maintain the security checks to get rid of any upcoming attack on system or network. If someone is trying to make use of services just to create traffic in the intellectual and physical property then the inspection of private content is referred to law enforcement. In General, as per rules of conduct, the company is prohibited from revealing any kind of information that breaches security concern of the customers. All ethical theories stick to particular principles that show the path of success by choosing the suitable decision. Microsoft has clearly mentioned that Windows Update would not be available on the replicas of the operating system. At the same point, Microsoft states that providing more privacy to ordinary users would risk the concern of security as they would no longer get security update. Undoubtedly Windows 10 has provided few ssecurity improvements over previous versions of the operating system (Simmons, 2006). But Microsoft made their users choose between having privacy and security which is really an awful act by the company. It is expected that Microsoft should provide a clear view to its user groups. According to ethics theory company must accept its misleading steps and provide clear cut pop ups to the users who require them, by choosing a single collective screen (Simmons, 2006). Another recommendation is that company should provide genuine security updates from operating system upgrades going forward, and do not try to neglect user choice and privacy expectations. References Loreau, M. (2014). Reconciling utilitarian and non-utilitarian approaches to biodiversity conservation.Ethics In Science And Environmental Politics,14(1), 27-32. https://dx.doi.org/10.3354/esep00149 McGee, R. (2009). Analyzing Insider Trading from the Perspectives of Utilitarian Ethics and Rights Theory.Journal Of Business Ethics,91(1), 65-82. https://dx.doi.org/10.1007/s10551-009-0068-2 Michener, J. (2008). Common Permissions in Microsoft Windows Server 2008 and Windows Vista.IEEE Security Privacy Magazine,6(3), 63-67. https://dx.doi.org/10.1109/msp.2008.59 Schwickert, E., Miller, S. (2005). Gender, Morality, and Ethics of Responsibility: Complementing Teleological and Deontological Ethics.Hypatia,20(2), 164-187. https://dx.doi.org/10.1353/hyp.2005.0089 Simmons, W. (2006). Discussing personal details at bedside disregards privacy.Nursing Standard,21(10), 32-32. https://dx.doi.org/10.7748/ns.21.10.32.s42 With Windows 10, Microsoft Blatantly Disregards User Choice and Privacy: A Deep Dive. (2017).Electronic Frontier Foundation. Retrieved 21 September 2017, from https://www.eff.org/deeplinks/2016/08/windows-10-microsoft-blatantly-disregards-user-choice-and-privacy-deep-dive