Thermodynamic Cycle Analysis Coursework Example | Topics and Well Written Essays - 1500 words

Thermodynamic Cycle Analysis - Coursework Example 2. You should set the initial conditions (green boxes) to reasonable values, explaining your choices. You should also explain the effects that increasing or decreasing these values have on the model. The initial conditions for density of air, ambient pressure, and ambient temperature for the engine have been input in the relevant green boxes in the excel file. The air pressure at sea level is 1.225 kg/m3, rounded off to 1.2 kg/m3 (Ahrens et al. 2012). This is at a temperature of 15Â °C (The Engineering Toolbox 2013). This air density is chosen because it is the density of air present at sea level. The ambient temperature is set at 300 K because this is generally taken as the average room temperature. The ambient pressure is chosen as 1.000 bar because the standard atmospheric pressure is generally indicated as 1 bar, which is equated to 100,000 Pa (Ahrens et al. 2012). Air density affects the pressure in the cylinder, ambient pressure affects the power generation and ambient tempera ture affects the efficiency of the engine. The effect of increasing the given value of air density would be that the pressure in the cylinder will increase for the compression ratio mentioned in the table. There will be more air to mix with fuel if the air density is high and therefore, there will be more power. Increase in the pressure at the same temperature will result in increase in power generation. Increasing the given value of ambient pressure will cause an increase in the maximum pressure in the cylinder. This will in turn increase the power and torque of the engine and vice versa. At low pressure, the air per cubic meter is lesser due to lesser pressure. This will lead to a reduction in performance of the engine. This effect is dependent on the speeds, as shown by Shannak and Alhasan (2002). At a low speed of up to 2500 rpm, volumetric efficiency and fuel consumption of the engine are found to decrease at with decrease in ambient pressure. On the other hand, at a higher spe ed of 3000 rpm, engine performance is found to decrease with increase in atmosphere pressure. Furthermore, while it can be assumed that at higher pressure the power and torque of the engine increases, there are more structural loads on the car and the fuel consumption is also increased (Ayers 1997). If the ambient temperature is reduced, the efficiency of the engine will increase. Increase in the ambient temperature results in a reduction in the engine efficiency as well as output (Energy and Environmental Analysis, Inc. 2008). All engines are known to have a better performance at lower temperatures (Ayers 1997). This will happen because reduction in ambient temperature will cause a higher energy transfer to the crankshaft. Thus, the energy loss will be reduced and the engine will have higher efficiency. 3. You now need to select suitable values for the polytropic index for compression and expansion (pink boxes) explaining your choices with reference to adiabatic, isothermal and pol ytropic processes and the differences between them. The suitable values for the polytropic index for compression and expansion have been input into the relevant pink boxes in the excel file. The values are given as 1.3 and 1.2 respectively for polytropic index of compression and polytropic index of expansion. The polytropic index of compression for petrol engines is generally reported as 1.3 (Huleihil and Mazor 2012). A polytropic index of 1 is considered isothermal while that of 1.4 is considered adiabatic (The Engineering Toolbox 2013). In our engine, the

Strategic Accounting Assignment Example | Topics and Well Written Essays - 2500 words

Strategic Accounting - Assignment Example Quality costing should therefore be understood as the cost of not producing a product, which bears the above components that gauge a quality product or service (Thompson, 2010). The aspect of quality cost arises from the third era of quality where it emerges as a tool of quality assurance with its main goal being to avoid problems, by giving room to coordination of activities. Quality control as a technique of management accounting has been improved over time through the contribution of various scholars, who added in more knowledge and insight to quality control. Crosby initiated the aspect of quality testing through inspection, quality management, quality assurance and improvement (Kilger, 2002). Deming on the other hand shared his contribution by introducing the aspect of companywide quality control, which was later revised by Juran through his total quality management technique (Nokes, 2000). Quality costs are mainly understood in four major groupings which are commonly referred t o as the four types of quality costs. Prevention costs is a type of quality control and is considered as generally the most effective way to manage quality costs and avoid defects of products and services (Sadler, 2003). Prevention costs hold on a projection that it is better to prevent a defect from occurring at the first place than to correct it when it has already occurred, as it tends to be more expensive. Prevention costs make use of control activities such as statistical process control, quality engineering and training, which reduce defects. Prevention cost as a type of quality control also takes in activities relating to quality control, which consists of people who meet to discuss and solve quality problems. Statistical quality control as an activity of quality control is used to detect whether a specific product or service is in or out of quality (Samset, 2010). Prevention costs therefore take in the perspective of all activities that are designed to prevent the initial po or quality of products and services (Commission for local governance, 2000). Appraisal costs are also referred to as inspection costs and are incurred by an organization with the aim of identifying defective products in the production process, to make sure that defective products are not shipped to customers. Appraisal costs have the purpose of inspecting the production process and ensuring defective products are identified and eliminated. Many organizations however look at appraisal costs as expensive and ineffective to customers (Cadez, 2008). Other than employing appraisal costs, many companies encourage customers to be increasingly responsible for their own quality control through designing products that allow simple manufacturing, which gives a chance for quality to be built into the products (Morden, 2012). Internal failure costs on the other hand refer to cots incurred internally when a particular product fails to conform to design specifications that had been identified init ially. Internal failure

TRAFFIC MANAGEMENT ADVISOR :: essays research papers

Abstract The Traffic Management Advisor (TMA) is part of the FAA’s Free Flight program which has been on going for the past 12 years in an attempt to enable controllers the means in which to manage airspace and reduce delays at airports safely and more efficiently. It uses flight plan information along with environmental concerns to aide controllers in sequencing arrivals at airports and makes recommendations for traffic patterns to aide in undue congestion. The TMA has boosted efficiency of the air traffic controllers and helped in fuel efficiency and safety for the airlines, passengers and crews. The Concept of the Traffic Management Advisor   Ã‚  Ã‚  Ã‚  Ã‚  The Traffic Management Advisor (TMA) is used to aide the air traffic controllers and coordinators thru graphical map, which display alerts, when dealing with aircraft when they are on the outer meter, meter fixed, final approach and threshold for landing at an airport. The TMA schedules and sequences times for their orbits and landings at airports which take a lot of the stress and calculations away from the controllers. It also schedules their landing runways for the aircraft which helps with separation and safety of the aircraft. It does this by computing their speed and approach angles which can be seen on a live Doppler type of screen.   Ã‚  Ã‚  Ã‚  Ã‚  The TMA system relies on eight processes which include the following: 1) the communications manager which shares information between its databases, 2) the radar daemon which has a link between the TMA and the controllers computer, 3) the weather daemon which uses weather information from the national weather service, 4) the timeline graphical user interface which receives and uses information from the traffic management controllers computer, 5) the route analyzer which decides which route the aircraft will use, 6) the planview graphical user interface which uses input from the controllers and displays the information, 7) the trajectory synthesizer which determines the estimated time of arrival and the descent profile of the aircraft, and 8) the dynamic planner which determines the runway and the sequences of the other incoming traffic.   Ã‚  Ã‚  Ã‚  Ã‚  The TMA computes the aircrafts schedule and sequencing between 40 and 200 miles from the airport, even before they have reached the airports controlled airspace. All of this information comes from the aircrafts flight plan and the TMA has the ability to adjust runway assignments and the sequencing of the aircraft also due to environmental conditions or in response to the input by the controllers.

Porter Five Forces Analysis

Porter five forces analysis  is a framework for industry analysis and business strategy development formed by  Michael E. Porter  of  Harvard Business School  in 1979. It draws uponindustrial organizationeconomics  to derive five forces that determine the competitive intensity and therefore attractiveness of a  market. Attractiveness in this context refers to the overall industry profitability. An â€Å"unattractive† industry is one in which the combination of these five forces acts to drive down overall profitability.A very unattractive industry would be one approaching â€Å"pure competition†, in which available profits for all firms are driven to  normal profit. Five forces Threat of new competition Profitable markets that yield high returns will attract new firms. This results in many new entrants, which eventually will decrease profitability for all firms in the industry. Unless the entry of new firms can be blocked by  incumbents, the abnormal pr ofit rate will tend towards zero (perfect competition). * The existence of  barriers to entry  (patents,  rights, etc. The most attractive segment is one in which entry barriers are high and exit barriers are low. Few new firms can enter and non-performing firms can exit easily. * Economies of product differences * Brand equity * Switching costs or  sunk costs * Capital requirements * Access to distribution * Customer loyalty  to established brands * Absolute cost * Industry profitability; the more profitable the industry the more attractive it will be to new competitors. Threat of substitute products or services The existence of products outside of the realm of the common product boundaries increases the  propensity  of customers to switch to alternatives.Note that this should not be confused with competitors' similar products but entirely different ones instead. For example, tap water might be considered a substitute for Coke, whereas Pepsi is a competitor's similar product. Increased marketing for drinking tap water might â€Å"shrink the pie† for both Coke and Pepsi, whereas increased Pepsi advertising would likely â€Å"grow the pie† (increase consumption of all soft drinks), albeit while giving Pepsi a larger slice at Coke's expense. * Buyer propensity to substitute * Relative price performance of substitute Buyer  switching costs * Perceived level of  product differentiation * Number of substitute products available in the market * Ease of substitution. Information-based products are more prone to substitution, as online product can easily replace material product. * Substandard product * Quality depreciation Bargaining power of customers (buyers) The bargaining power of customers is also described as the market of outputs: the ability of customers to put the  firm  under pressure, which also affects the customer's sensitivity to price changes. Buyer concentration to  firm  concentration ratio * Degree of dependen cy upon existing channels of distribution * Bargaining leverage, particularly in industries with high  fixed cost * Buyer switching costs relative to  firm  switching costs * Buyer information availability * Availability of existing substitute products * Buyer  price sensitivity * Differential advantage (uniqueness) of industry products * RFM  Analysis Bargaining power of suppliers The bargaining power of suppliers is also described as the market of inputs.Suppliers of raw materials, components, labor, and services (such as expertise) to the  firm  can be a source of power over the firm, when there are few substitutes. Suppliers may refuse to work with the firm, or, e. g. , charge excessively high prices for unique resources. * Supplier switching costs relative to  firm  switching costs * Degree of differentiation of inputs * Impact of inputs on cost or differentiation * Presence of substitute inputs * Strength of distribution channel * Supplier concentration to  firm  concentration ratio * Employee solidarity (e. g. labor unions) Supplier competition – ability to forward vertically integrate and cut out the BUYER Ex. : If you are making biscuits and there is only one person who sells flour, you have no alternative but to buy it from him. Intensity of competitive rivalry For most industries, the intensity of competitive rivalry is the major determinant of the competitiveness of the industry. * Sustainable  competitive advantage  through  innovation * Competition between online and offline companies * Level of  advertising  expense * Powerful  competitive strategy * Flexibility through customization, volume and variety

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The History Of Uk Cyber Strategy - 1230 Words

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The Military Strategy – The strategy of the military of Defence stems from their responsibility within the Grand strategy in developing, sustaining and assigning of military forces and assets to support government policy and achieve the goals of the grand strategic. It operates on two levels namely the Operational Strategy which is the Permanent Joint Headquarters (PJHQ) strategy guiding the use of military forces to achieve the objective of the MOD and Tactical which is the field commanders’ directive for Land, Sea and Air in achieving the Operational goals. The grand strategy was renamed the National Strategy but its definition remains ‘Co-OrdinatedShow MoreRelatedDefence Policy And Military Strategy1134 Words   |  5 Pagesstrategies. 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How Bilbo Baggins Is a Hero in the Hobbit - 1173 Words

Outline I. Bilbo Baggins is one of the heroes of the quest. II. Bilbo fulfills many of the characteristics of a hero. A. Definition of a hero. B. His powers. III. Bilbo wasnà ¢Ã¢â€š ¬Ã¢â€ž ¢t the only hero of the adventure. C. The others heroes D. Characteristics that made them heroes E. Actions that made them heroes IV. Heroic actions that Bilbo made F. Their purpose G. Their consequences V. Conclusion Complete and Real Heroes The Hobbit, written by John Ronald Reuel Tolkien, describes a quest that Bilbo Baggins and his friends made. Bilbo Baggins, the protagonist of the novel, was one of the many†¦show more content†¦He achieved the rescue with a very smart plan and they continue their adventure. Another heroic action that Bilbo made was when all the dwarves were captured by the Spiders in Mirkwood. He searched and rescued them. In both occasions he risked his life because he didn ´t want to lose his friends and he couldnà ¢Ã¢â€š ¬Ã¢â€ž ¢t permit the quest to end like that. The last heroic action that he made was when he went to the humansà ¢Ã¢â€š ¬Ã¢â€ž ¢ and elvesà ¢Ã¢â€š ¬Ã¢â€ž ¢ camp to give them the Arkestone, a very important gem for the dwarves, to permit them deal the peace. He risked his life and betrayed Thorinà ¢Ã¢â€š ¬Ã¢â€ž ¢s trust to try to avoid the war between them. Bilboà ¢Ã¢â€š ¬Ã¢â€ž ¢s purpose always was for the benefit of everyone and not for his own benefit, and this, he acted like a most valuable hero. In fact, Bilbo Baggins was one of the most important heroes of the novel because he sacrificed his life for his friendà ¢Ã¢â€š ¬Ã¢â€ž ¢s life. He was very smart and always solved the dwarvesà ¢Ã¢â€š ¬Ã¢â€ž ¢ problems. He never put himself before the welfare of the others and always had a leaderà ¢Ã¢â€š ¬Ã¢â€ž ¢s attitude. Bilbo Baggins was a hero because he met with the principal requirements that a hero needed for being recognized. Bibliography: à ¢Ã¢â€š ¬Ã…“Hero.à ¢Ã¢â€š ¬Ã‚  WordReference. October 25, 2012. lt; http://www.wordreference.com/definition/herogt;. à ¢Ã¢â€š ¬Ã…“Hero.à ¢Ã¢â€š ¬Ã‚  Wikipedia. October 24, 2012. October 25, 2012. lt; http://en.wikipedia.org/wiki/Herogt;. Tolkien, John Ronald Reuel. The Hobbit. New York: The Random House Publishing Group, 1982. Number of words:Show MoreRelatedHow Bilbo Baggins Is a Hero in the Hobbit1167 Words   |  5 PagesOutline I. Bilbo Baggins is one of the heroes of the quest. II. Bilbo fulfills many of the characteristics of a hero. A. Definition of a hero. B. His powers. III. Bilbo wasn’t the only hero of the adventure. C. The others heroes D. Characteristics that made them heroes E. Actions that made them heroes IV. Heroic actions that Bilbo made F. Their purpose G. Their consequences V. Conclusion Read MoreSummary Of Bilbo The Unexpected Hero 1339 Words   |  6 PagesCrumm Crumm2 Mrs Hooper Period 8 April 16th, 2015 Bilbo, the Unexpected Hero J.R.R. Tolkien is best knowing for his work in the series â€Å"Lord of the Rings†, which is held to be one of the best told modern day folklore. It consists of a world inhabited by mythical and supernatural beings. In his book â€Å"The Hobbit†, which is also taken place in this world, we meet our unlikely hero Bilbo Baggins. Hobbits are known not to be very adventurous. They live in comfort and do what isRead MoreThe Development of the Character of Bilbo Baggins1605 Words   |  7 PagesTolkien portrayed the main character of The Hobbit, Bilbo Baggins, as a child on his trip into adulthood. Throughout The Hobbit, Bilbo Baggins, the protagonist, changes from a childlike hobbit to a fully matured hero. J.R.R. Tolkien divides the change in Bilbos character into the three major part of the book, prior to the quest, during the quest, and after the quest. 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This is the greatest challenge that faces the hero† (Holmes). This stage is literally in a dark cave, one that provides a morally challenging and terrifying experience for Bilbo. In the cave, he deals with the Gollum and finds the Ring, changing his character forever. Only onceRead MoreGandalf as the Guide Archetype1222 Words   |  5 Pagesprototype. J.R.R Tolkiens The Hobbit is a story of growth that centers on Bilbo Baggins a Hobbit who is perfectly happy in his Hobbit hole eating, drinking and smoking. Everything in Bilbo’s life is as he likes it, until the day that Gandalf the Grey strolls into his life and although Bilbo doesnt know it Gandalf is his Guide. The Archetype of The Guide points the hero in the direction he is destined to go. Gandalf is the one who chooses Bilbo as the 14th and luckiest member of theRead MoreBilbo Baggins, An Unlikely Hero1466 Words   |  6 PagesBilbo Baggins, An Unlikely Hero â€Å"Heroes are made by the path they choose, not the powers they are graced with† (Ashton, 92). Specific characteristics come to mind when one envisions are hero, such as extraordinary strength and great courage. Heroes most commonly receive recognition for notable talents and remembered for their astonishing deeds and accomplishments. For example, Superman possesses superhuman strength, speed, and the ability to fly, qualities most frequently associated with heroesRead MoreAnalysis Of Bilbo Baggins s The Hobbit 1616 Words   |  7 PagesBilbo Baggins is one of the main characters of J.R.R. Tolkien’s The Hobbit. Being a main character in a story, especially an adventure story, typically comes with some pretty hefty responsibilities. More often than not, the main character is also the hero. A hero is defined as â€Å"a person, typically a man, who is admired or idealized for courage, outstanding achievements, or noble qualities,† and these are not necessari ly qualities readily attributed to Bilbo Baggins (oxforddictionaries.com). ThisRead MoreThe Hobbit : The Metamorphosis Of Mr. Baggins1571 Words   |  7 PagesRiley Professor: William Tooma English 215 November 10 2015 The Hobbit: The Metamorphosis of Mr. Baggins. In The Hobbit, written by J.R.R. Tolkien, the main character Bilbo Baggins experiences a drastic inner transformation along the story. The author executes the development of the protagonist’s personality in three stages: before the quest, during and after it. Previous to his journey, Bilbo was a coward and conventional hobbit. During the first part of the quest he is not confident of himselfRead More Analyzing Characters in Tolkiens The Hobbit Essay example829 Words   |  4 PagesAnalyzing Characters in Tolkiens The Hobbit The Hobbit (1937) by J.R.R. Tolkien is an exciting novel, an adventure that takes on a whole new meaning. At the start of the novel, Bilbo Baggins, an ordinary hobbit, is doing what the ordinary hobbit does, just staying at home. Hobbits are very comfortable with life and look for no excitement or change whatsoever. When Gandalf shows up on the doorstep of Bilbo Baggins cave (home), it was a major shock to him. Slowly dwarves show up at his doorstep