...skills in their professional career. Case Study: No single cause for cable car’s litany of faults The latest suspension of Lantau’s cable car service on Wednesday came after a fourth technical fault in two months, but according to the operator the faults were all in different parts of the system. After hundreds were trapped in cable car gondolas for around 90 minutes due to a fault, preliminary checks have shown a 42 cm bearing on the haul rope pulley wheel at the Airport Island Angle Station to be slightly worn. “We found no safety problem with the system. It is the reliability of service that is in question,” said Frank Chan-fan, Ngong Ping 360’s Director of Electrical and Mechanical Services, adding that the system’s six other identical bearings would be checked during a 10day suspension. He said the cold weather was unlikely to have caused the fault, since the cable car should be capable of withstanding Hong Kong’s humidity and temperatures. Government-appointed experts reviewing the cable car’s design after one fell to the ground in 2007 found it complied with international standards. Mr Lo Kwok-keung, Department of Mechanical Engineering, The Hong Kong Polytechnic University, said damage to the bearing was so minor it might not have been noticed during regular maintenance checks. He said the part needed to be well lubricated, but if that had been done then the bearing might have been old and ready for replacement. Or it might not have been of...
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...It is worth bearing in mind that other industrial-scale processes can trigger earthquakes including mining, filling reservoirs with water and the production of oil and gas. Even one of our cleanest forms of energy, geothermal, has some form in this respect. “In almost all cases, the seismic events caused by hydraulic fracturing have been undetectable other than by geoscientists. It is also low compared to other manmade triggers. Earthquakes caused by mining can range from a magnitude of 1.6 to 5.6, reservoir-filling from 2.0 to 7.9 and waste disposal from 2.0 to 5.7. “By comparison, most fracking-related events release a negligible amount of energy roughly equivalent to or even less than someone jumping off a ladder onto the floor. Of the three fracking-related...
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...ABSTRACT Electric Overhead Travelling (EOT) Crane is one of the essential industrial equipment for material handling job. Indecent years little attention has been paid to the optimal design heavy electric overhead travelling bridges. The motive might be, but not limited to the availability of prevailing FEM, DIN, ISO, CMAA, BS, Chinese and now CEN standards for the design of cranes. Most of the crane manufacture has standardized the single dimensioned box section for multiple spans and duties of crane bridges for manufacturing simplicity. LIST OF TABLES Table No. | Table Description | Page No. | 1 Different cross section formula 2 Dimension for ramshorn hooks LIST OF FIGURES Figure No. Figure Description Page No. 1.1.1 Overhead crane 1.3.1 Standard crane 1.4.1 Free standing crane 1.5.1 Gear box 1.5.2 Electric brake motor 1.5.3 Rope guide 1.5.4 Load limiter 1.5.5 Low headroom trolley 1.6.1(A) Top Running Bridge Cranes 1.6.1(B) Under Running Bridge Crane 1.7.1 Top running vs. under running 1.9 Double girder crane hoist 1.9.1 Chain hoist 1.9.2 Wire rope hoist 3.1.1 Drawing of 160 ton hook, nut & Lock plate 3.2.1 CAD model of 160 ton hook 3.3.1 Different views of crane hook 3.3.2 Bending of a beam with larger Initial curvature 3.4.1 Modified cross section 3.5.1 Circular cross section 3.5.2 Rectangular cross section ...
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...Basic Principles and Functions of Electrical Machines O.I. Okoro, Ph.D.1*, M.U. Agu, Ph.D.1, and E. Chinkuni, Ph.D.2 1 Department of Electrical Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria * E-mail: oiokoro@hotmail.com 2 Polytechnic University of Namibia, Windhoek, Namibia E-mail: chikuni@yahoo.com ABSTRACT Recent advances in power electronics and highspeed microprocessors have led to considerable attention in electrical machines with regard to their applications in industrial drives. This paper brings to the fore, various types of electrical machines, their operations, and applications, as well as the method of determining their parameters. Various ways of protecting electric machines against overloads and mechanical faults are also highlighted. It is anticipated that the work presented in this paper will be of immense benefit to practicing engineers especially in areas of machine design, maintenance, and protection. (Keywords: electrical machines, operation design, maintenance, protection, stator) the stator and alternating currents are induced in the rotor by transformer action. In the synchronous machine, direct current is supplied to the rotor and Alternating Current (A.C.) flows in the stator. On the other hand, a D.C. machine is a machine that is excited from D.C. sources only or that itself acts as a source of D.C. [5]. It is a common practice in industry to employ A.C. motors whenever they are inherently suitable or can be given appropriate characteristics...
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...1. State the managerial role that Mr. Frank Chan-fan has performed. Suggest another TWO roles that Mr. Frank Chan-fan will perform to deal with the cable car’s litany of faults. Justify your answer. Answer: Frank has performed as spokesperson. Spokespersons’ responsibility is transmits information to outsiders on organization’s plans, policies, actions and results. In this case, Frank explained to the public of the result of investigation. He said that the cable car system is reliable and has no safety problem. Frank would also perform as disseminator and disturbance handler. After the technical fault had happened, the public image of the Ngong Ping 360 services was completely damaged. Some customers will be unsatisfied with his company. These external customers may use other public transport to replace Ngong Ping 360. This action may make Ngong Ping 360 lose a lot of money. To prevent this situation, Ngong Ping 360 would receive comments or criticisms from their customers (outsiders). In this case Frank will perform disseminator. A disseminator is responsible for transmitting information received from outsiders or from subordinates to the member of organization. Frank need to receive other information from public to provide a better service to public and give out a health and reliable image to public. Moreover disturbance handlers’ responsibility is correct action when organization faces important, unexpected disturbances. In this case, Frank can be acting these two roles...
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...are ideal for applications such as indoor and outdoor temperature comparisons, the monitoring of storage areas, and classroom maintenance. - Typically consist of main display unit and external temperature sensors - Each external sensor reading is displayed on the main unit - The main unit can typically be wall or desk mounted - Traceable accuracy is recommended - Variable measurement range, resolution and accuracy Irreversible Temperature Labels Temperature indicator labels are self-adhesive temperature proofing foils. They are ideal for use in processes where specific temperature values need to be achieved, such as sterilisation. They are also suitable for use where temperature values should not be exceeded, such as engine or bearing monitoring. They are a relatively cheap, yet effective way to achieve permanent records of accuracy. - Each foil segment on a label is sensitive to a different temperature and when exposed to its rating will turn black - Each segment has both °C and °F temperature values - Each label is oil and water resistant - The colour change is irreversible even after the object being measured cools down - After use, labels can be removed - Variable measurement range, resolution and accuracy. Fixed...
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...Principle of superposition of forces, Principle of transmissibility of forces; Equivalent force – couple system; Resolution of forces, composition of forces; Types of supports, statically determinate beams, Numerical problems on support reactions for statically determinate beams and analysis of simple trusses ,Friction. • Engineering Physics Interference, diffraction and polarization of light; Nuclear fission, fusion, particle accelerators; Wave Particle Duality • Engineering Chemistry Physical Chemistry: Atoms, molecules and solids; phase equilibria; Galvanic & Fuel cells • Organic Chemistry: Types of reactions and reaction mechanisms; Concept of armaticity Computer Concepts & C Programming Introduction to digital computers; problem solving using computers; Programming in Fortran 77: Constants, variables,expressions, statements, control statements, arrays, functions, concept of files and file operations. • Computer Aided Engineering Drawing Conic sections; Development of surfaces of solids & their intersections, Orthographic, Isometric & Perspective projections • Basic Electrical Engineering Basic definitions; node & mesh analysis; magnetic fields, magnetic circuits;...
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...Critical and Creative Thinking in Professional Development Analysis Using critical thinking was not an easy task for Nancy Yates in a professional career and personal life. The writer believes in a professional workplace the rules and regulations in place and the need to survive to take care of her family was the motivation to learn and apply critical thinking. The job held workers to a code of standard. For instance as a human service representative, obeying HIPPA laws are essential. If the rules are violated, the action of termination or possibility of criminal charges maybe the consequences. Also the workplace will constantly require workers to participate in in-service courses. As the writer matured, she applied the same knowledge retain in the workplace to her personal life. Together critical thinking has enhance her ability to excel in leadership and relate to the public. For instance understanding different cultures code of standards. If a client is reacting to a situation that may seem reckless, it is best to listen and then respond in a correct manner. This technique the writer applied at home and received similar results. Critical thinking as no bearing on a person intelligence, social economic standards, or public perception; however, it respectful obtaining how to achieve the best outcome for the situation. Last year my school district started the implementation of common core standards. The staff was given a set of rules that they had to apply when...
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...Fragility In Global Supply Chains Name: Institution Affiliated: Executive Summary The fragility of worldwide supply chains gets identified with rising risks, however, this is additionally identified with supply and system plan methods. The coordination of risk administration in supply chain administration has frequently been restricted, particularly for associations that have concentrated on lessening expenses and constraining working capital levels as a reaction to troublesome economic situations. Progressively, numerous organizations are re-creating the harmony in the middle of risk and expense center as they deal with their worldwide supply chain. In addressing these risks, organizations ought to consider their working models, in an exertion intended to characterize an ideal harmony between budgetary proficiency and assuredness of a stable supply chain (Ballou, 1993). Organizations that once kept up reinforcement stock and assembled offices may have presented themselves to risk as they focused on living up to expectations with fewer redundancies. Utilizing the "Kaizen" model calling for "without a moment to spare" or even "just in arrangement" generation with insignificant procedure inventories. Numerous organizations have changed from "nearby" suppliers to "ease" (and regularly far off) suppliers on the premise of expense, without considering the full cost of risks connected with these progressions. Accordingly, the expanded supply chain now has numerous extra purposes...
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...Mechatronics BASIC MEASUREMENT TOOLS MTX 103 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of measurement tools. Topics include basic measurement, S.I. and U.S. customary measurement, precision measurement tools and dimensional gauging. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. BASIC HYDRAULICS MTX 105 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of hydraulics. Topics include hydraulic power systems, hydraulic circuits, principles of hydraulic pressure and flow and various types of hydraulic valves. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. BASIC PNEUMATICS MTX 107 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of pneumatics. Topics include pneumatic power systems, basic pneumatic circuits principles of pneumatic pressure and flow and pneumatic speed control. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. ELECTRIC MOTOR CONTROL 1 MTX 110 Fall 4 Credits 22 hours of lecture - 44 hours of lab Fundamentals of electric motor control. Topics include electrical safety, control transformers, overload protection, ladder logic, control relays, electronic sensors, and other topics related...
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...starters into the switchgear. Particular focus is on the safety, maintenance, protection coordination, and operation impacts of including the 4160VMedium Voltage Motor Starter, into switchgears of important systems. In light of the above, this paper will present an analysis of some of the best practices and techniques used to design Medium Voltage (MV) motors. This encompasses the critical considerations made for medium voltage switchgear commonly found in generation power plants and safe class facilities such as nuclear plant. The primary focus is on power system facilities that are intolerable to any form of power interruptions. Such facilities in areas of utility, industrial, commercial, and residential applications require power systems that have the capacity to provide safe and reliable energy for the utilization of equipment. Since the other earlier designs specifications of MV motor starter already exist, this paper essentially emphasizes the advantages in designing 4160V MV motors starters into MV switchgears with protective relays, switch and circuit breaker control circuits, and solid-state power. Discussions made include the advantages of integrating MV starters in the 4160V switchgear, with regard to fault clearance, maintenance, down time, and operations. The paper summary includes recommendations of the best practices necessary for safe reliable system, and control circuits maintenance to guarantee that protective equipment operates as intended. Medium Voltage...
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...NATIONAL INSTITUTE OF TECHNOLOGY DURGAPUR A PROJECT REPORT ON “SPOT BURR REDUCTION BY IMPROVING THE WORKABILITY OF SPOT GUN” Submitted in the partial fulfilment of the requirements for the award of the Degree of Bachelor of Technology in Mechanical Engineering Submitted By Mayukh Biswas ( 10/ME/27) Project Work Carried Out at Toyota Kirloskar Motor Private Limited Under the Guidance of Mr. Abhinand S AM Underbody, Weld Shop ( Plant 1 ) Toyota Kirloskar Motor (TKM) NATIONAL INSTITUTE OF TECHNOLOGY DURGAPUR (DEEMED UNIVERSITY) M.G. ROAD, DURGAPUR 713209 CERTIFICATE This is to certify that the Project work entitled “SPOT BURR REDUCTION BY IMPROVING THE WORKABILITY OF SPOT GUN” Carried out by Mayukh Biswas bearing R. No. : 10/ME/27 in partial fulfilment for the award of Bachelor of Technology in Mechanical Engineering of National Institute of Technology, Durgapur. It is certified that all corrections/suggestions indicated for internal assessment have been incorporate in the Report. The project report has been approved as it satisfies the academic requirements in respect of project work prescribed for said Degree. Mr. Abhinand S AM Underbody, Weld Shop (Plant 1) Toyota Kirloskar Motor (TKM) Ms. Mili Mathew HR Learning & Development Toyota Kirloskar Motor (TKM) Acknowledgement It gives me great pleasure to acknowledge the numerous personalities involved in lending their help to make this Project Work titled “ SPOT BURR REDUCTION BY...
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...Date: March 27, 2015 From: Danilo; Gustavo Bueno; Jacob Broberger; Joep Laureijs; José Adriano Machado Subject: Group 2’s analysis of Managing Earnings by Manipulating Inventory: The Effects of Cost Structure and Valuation Method Introduction In this memo, we intend to analyze and breakdown Managing Earnings by Manipulating Inventory: The Effects of Cost Structure and Valuation Method by Kirsten A. Cook, Ryan Houston & Michael R. Kinney’s major faults and weak-points. The article examines how production cost structure and inventory valuation affect a company’s earning management through inventory manipulation. Its two main findings are the following: i. Firms with high fixed-cost ratios are more likely to manipulate production but make smaller abnormal inventory changes than companies with low fixed-costs ratios; ii. LIFO firms are less likely than other companies to manage earnings by using the production lever (i.e. shifting fixed costs between COGS and inventory) because they may also manage earnings by liquidating LIFO layers and releasing the LIFO reserve. Before we begin our analysis, we put together a brief rundown of the essential concepts the article’s authors go through to form their conclusions. Cost Structure Cost structure refers to the types and relative proportions of fixed and variable costs that a business incurs. Valuation methods A company can value its inventory using several methods. The two most important methods are LIFO (“last in...
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...kenyatta university | Field trip report | | J75/2359/2009 | Dennis Muthomi Kirauni | 4/1/2014 | As part of the fulfillment of the requirements to the degree pursued, in the EMM 516 course (power plant engineering) we under took several field trips to relate what has been taught in class and how the power generation objective is achieved out there. This report is to be submitted in partial fulfillment of the mentioned course. | Introduction Kenya’s energy sector faces daunting challenges, characterized by high cost and insufficient supply. Nearly 80% of Kenyans are living without access to basic Energy services; a top priority for the government is to improve access to adequate and affordable energy supply. The existing energy supply is heavily dependent upon hydroelectric power thus due to the rapid growth in demand for energy means that Kenya must find new ways to provide crucial energy services to its people. The available options include Renewable energy resources like geothermal. Kenya has nearly 7,000 MW geothermal potential, yet it remains largely undeveloped due to economic and financial limitations, insufficient technical and human capacity, and various social constraints. However the government has now turned around and is aiming at producing about 16000MW of power by 2030. The country currently produces about 1500 MWs primarily from hydro stations (57%-hydro power, about 32%-thermal and the rest comprises geothermal and emergency thermal power). To bridge...
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...Text Analysis №2 “Story of an Hour” by Kate Chopin. Kate Chopin was born in 1851 and grew up in the household dominated by generations of women that greatly influenced her style of writing. Many of her works deal with women searching for freedom from male domination, and she is considered to be an early feminist writer. Chopin wrote over a hundred short stories, many of which were published in two collections: Bayou Folk and A Night in Acadia. Her two novels, At Fault and The Awakening deal with the controversial themes of divorce and adultery. The story under analysis is called Story of an Hour and belongs to a psychological type including social element because the author depicts the inner world of the main character, her thoughts about her future life which reflect relations between men and women at the end of the 19th century. The story is close to some extent to Galsworthy’s The Man of Property as it shows the relationship between husband and wife typical of the Victorian society. The text under consideration has the close plot structure because we observe all the four elements here. In the exposition the reader meets the main characters of the story and learns about the heart disease which one of them has. Then, the events develop in the following way: Mrs. Mallard is told “as gently as possible the news of her husband’s death” by her sister Josephine and we see the usual reaction of a wife who lost her husband which is brightly illustrated with the help of the metaphor...
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