Final report Essay Example | Topics and Well Written Essays - 750 words

Final report - Essay Example One of the environmental trends that affect the product’s demand is the legal environment. As an innovative product, we expect to reserve rights over the product through patent rights. This prevents other people or entities from producing and trading in a similar product. Patent right however run for a specified period then protection of rights over innovation becomes void. During the protection period, the venture anticipates an increasing demand as the product gains popularity into the market because of limited level of competition. The legal environment will ensure minimal competition but tight competition is expected after expiry of patent rights as other parties are likely to develop and sell similar products and demand will be expected to reduce. Trend in the legal environment that changes by legislations may also have adverse impacts on the venture should legislation be enforced to term illegalize the product on safety and health grounds. This is because of its scope th at allows electric charges into people’s bodies, a factor that may become controversial a legislation that bans the product will terminate its demand (Lamb, Hair and McDaniel 128, 155). Economic trend also affect the product because of the trend’s impact on people’s ability to purchase. ... Demographic factors such as level of education social class and age are other trends that affect the product’s demand. Level of education plays an important role in informing people of the safety in using the devise and together with social class empowers people towards demand. The wider scope of the product’s market that targets the global market extends these trends from local to national and global levels (Luck 56). Consumers’ taste and preference against the product may influence the market and limit our potential to sell the product. Customer research: To analyze demographics, psychographics, and purchasing behavior of the target market A primary research was necessary to understand the target market. The research implemented a qualitative research design through phenomenology. Qualitative research was selected because of its scope and type of data that corresponded to the type of research that aimed at understanding psychological and behavioral aspects of t he target market. Phenomenology, a research design that relies on participants’ experience to develop an understanding of their perspective was used because of its suitability for the scope of research and its ability to capture reality. Survey questionnaire was applied on a randomly selected sample of 12 participants (McNabb 147, 148, 301, 302, 308, ). The following is the applied survey questionnaire. The participants were offered the product to use for a week and the questionnaire administered to each of them. Survey Questionnaire How effective are the normal alarms in waking you up? Have you tried our product before? How effective is our product in waking people up compared to traditional alarms?

Titanic Essay Example for Free

Titanic Essay In additions, that day night is no moon, it’s harder to see the iceberg. The Titanic have held about 3,000 people, only 20 lifeboats, it wasn’t enough to save all the people on the ship, that’s why so many people deaths. The Titanic didn’t take signal flares, when the Titanic wanted to ask some help, it just let off the fireworks instead of signal flares. Other ships see the fireworks; they didn’t know it was a distress signal. Just one ship Carpathian insisted to come there eventually picked up so many people. Sequences of sinking During April 14, 1912, Titanic’s radio operators received six messages from other ship warming of iceberg, but Titanic was travelling its maximum speed when it sighted the iceberg. At 11:40(ship’s time) the lookouts spotted an iceberg 1/4 mile ahead and alerted the bridge. Unable to turn quickly enough, the starboard side of Titanic struck the iceberg, creating a series of holes below the waterline. The ship was doomed; Titanic began sinking bow-first. The ship broke up as it sank with over a thousand passengers and crew members still aboard. So many people jumped into the cold water, they didn’t bear the cold water and died . It last two hours and forty minutes, and Titanic disappeared in the ocean. Aftermath of sinking It was the largest marine peril at that time. The Titanic had held almost 2200 people. Between 1490 and 1635 passengers were died, only 711 passengers were rescued and survived. It’s so sad for everyone. Carpathian took three days to reach New York leaving the scene of disaster. Nearly the entire New York police force was on hand. Later that day, confirmation came though that Titanic had been lost and most of passengers and crew had died. Advices of accident We don’t want the Titanic disaster happen again. There are so many reasons to lead to the accident. We must remember the advices. Later, we built ship; we must have enough lifeboats in the ship. We must have enough SOS signal flares and telescopes. We must improve our crisis awareness. We are serious to accept any SOS signal flares and warming messages. We can set up the organization which is rescuing the ship fall into troubles.

Sustainability :: Personal Narrative Writing

Sustainability is an issue that everyone should be concerned about. If the planet Earth is going to exist, as we know it, everyone should wake up and do their part to help achieve a greater level of sustainability. In my English 101 class we learned about the issue of sustainability. Many different topics were discussed and researched throughout the course of the semester. Overall, I think that the sustainability project has been a learning and enlightening experience for everyone in this class. Many more things can be done next semester, since the groundwork has been laid to continue this project for time to come. One of my personal goals for the project was to learn as much as I could about the sustainability issue facing us. I did this by participating in all of the projects that were done throughout the semester. The main project that occurred during the semester was the personal sustainability goals that we each set for ourselves. While doing the actions that we pledged to do, we learned different things about sustainability that we never knew before. One of the things that I learned was that, at Clemson, it is hard for students who want to recycle to be able to recycle. There are not the necessary facilities nearby our student housing to place our recyclables. I also learned that some actions that should be done to be sustainable are hard to do in the society that we live in. One of these activities that we do is the needless driving that Americans do in general. Since we live in a moving society, it is sometimes hard to do. An easy thing that everyone can do is to recycle s ome of his or her wastes. This can be done for most people at little or no extra effort than just throwing your trash away. Some of the planning that I did helped the students in other classes and even my own. During one part of the semester, we researched different ideas for the horticulture class students to implement in the schoolyard project that they were involved with. Others used my ideas and research in my class on their personal sustainability papers, university sustainability papers, and even their own personal goals to being sustainable.

Old Smoke Essay

Explain how you would handle this situation if you were Charles Renfold. I can relate to some of the typical attitudes that Sheehy reports appear to be in the work environments because I have experienced some of them myself. Some of my former co-workers did not always believe in customer service. They would sometimes deliberately take their time in executing a simple task just because they did not like a certain regular customer who frequents the establishment. Their were some who would watch the every move of a supervisor or manager, hoping that they do or say something wrong, just so they can go and tell their boss. This was done with the intentions hoping to get them in trouble or possibly even terminated. All of this is a product of the cultural environment we work in. Describe the policy on smoking that you would recommend to Redwood Associates. The implications of the work ethic for the future of American business are imminent. A vast number of employees reject the very idea of hard work and long hours. They believe in taking shortcuts or getting something done without much effort, usually by having someone else do it. If the task was a priority for upper level management or the individual would gain some type of recognition for its accomplishment that was the time in which maximum effort was applied. Other than that, most employees would just cruise through the job stuff and wait for the big score. These are just a few of  the implications that are drastically affecting business in America today. Explain how this case would change if what bothers Darlene is not old smoke but the smell of Alice’s perfume or Frank’s body odor. It is more reasonable to expect workers to be more devoted to their jobs, more concerned with quality and customer service; especially with the state of today’s economic situation in this country. For one, it is the right thing to do, regardless of how one may feel about management or the job for that matter. Second, you can not expect to get paid for doing nothing. If you take care of the customer, provide a quality product with service, you retain a regular patron, help the company earn a profit and in the end, probably maintain long term employment. Finally, we all have a moral obligation to do what is right and just. Explain whether it is fair or reasonable for companies to ban employees from smoking in their cars in the company parking lot. The culture of the work environment and peer pressure are significant reasoning behind employee theft. Some employees want to be accepted or fit in with their co-workers. Some of them do not believe that they are paid enough. They would steal from the company to gain acceptance or use it as a means of getting over. They fail to envision the affect revenue loss has on the company as a result of employee theft. It is not my stuff. It belongs to the company. I just work here is the mentality that most employees have. However, if the company or business was ran by them, a family member or someone they knew, they would not allow theft to occur. They would want someone to report it.

HVDC Light Technology Essay

Abstract—This document reveals theHVDC Light DC transmission technology.It is used in underground transmission and moreover provides point to point transmission.HVDC Light requires only two elements namely a converter station and a pair of ground cables. The new HVDC Light cable is an extruded, single-pole cable. It is ideally suited for feeding power into growing metropolitan areas from a suburban substation. HVDC Light is inherent environmentally friendly cables instead of OH transmission lines. Virtually no magnetic field. The environmental gains would be substantial, since the power supplied via the DC cables will be transmitted from efficient power plants in the main AC grid. 1. INTRODUCTION A hundred years ago, the transformer and a new transmission and distributionbe controlled precisely and independentlycan replace overhead lines at no costcontrol capabilities that are not present oreconomically feasible to connect smallscale,Equally important, HVDC Light hasfor inefficient, polluting local generationfrequency, active and reactive power canislands, mining districts and drillingloads from a main AC-gridof each other. This technology also relieson a new type of underground cable which penalty platforms can be supplied with power frompossible even in the most sophisticated ACrenewable power generation. Renewable power generation plantssuch as diesel units. The voltage, . Connect small scale Feeding remote isolated Flexible transmission System technology, HVDC Light, makes it the main grid,thereby eliminating the needto the main AC grid. Vice versa,using thevery same technology, remote locations asthe three phase system made it possible totransmit AC power efficiently and economically over vast distances and todistributethe power toamultitude ofusers.Since then all aspects of transmission anddistribution have developed by means oftechnical improvement and evolution. This AC transmission and distributiontechnology has made it possible to locategeneratingplants in optimum locations, andtoutilize them efficiently. This has alsoresulted in great environmental gains.Thermal plants have been located wherethey can be supplied with fuel through anefficient transportation system, therebyreducing waste and pollution. Hydro plantshave been located where the hydroresources can be used at the greatestadvantage. And large generating plantshave meant fewer overhead lines than amultitude of smaller generating plantswould have required.However, today’s AC transmission anddistribution systems are, at least inprinciple, based on ideas that haven’tchanged much since a hundred years ago. To transmit power, step up the voltage withtransformers, transmit power, step downthe voltage and distribute power. Despitetheir proven advantages, it is difficult andexpensive to adapt AC transmission anddistribution systems to the numerous smallscalegenerating plants that are being built,or to the increasingly complex and variableproduction and load demands.Environmental concerns and regulationsalso put heavy restrictions on building right-of-ways and on small-scale, fossilfuelledgenerating plants, such as dieselgenerating plants.These new trends require networks that areflexible. The networks must be able to copewith large variations in load and frequentchanges in productions patterns with tougher environmental regulations.Also, in such flexible networks, the powerflow and the voltages require precisecontrol in order to make the grids stable and economic. 2. TECHNOLOGY As its name implies, HVDC Light is a DCtransmission technology. However, it isdifferent from the classic HVDCtechnology used in a large number oftransmission schemes. Classic HVDCtechnology is mostly used for large point-to-point transmissions, often over vastdistances across land or under water. It requires fast communications channelsbetween the two stations, and there mustbe large rotating units – generators orsynchronous condensers – present in theAC networks at both ends of thetransmission. HVDC Light consists of only two elements: a converter station and a pair ofground cables. The converters are voltagesource converters, VSC’s. The output from the VSCare determined by the controlsystem, which does not require anycommunications links between the differentconverter stations. Also, they don’t need torely on the AC network’s ability to keepthe voltage and frequency stable. Thesefeatures make it possible to connect theconverters to the points bests suited for theAC system as a whole. Power range up to 100 MW Independent control of active and reactive power Can feed power to AC network without ownGeneration DC The converter station is designed for apower range of 1-100 MW and for a DCvoltage in the 10-100 kV range. One suchstation occupies an area of less than 250sq. m. (2 700 sq. ft.), and consists ofjust a few elements: two containers for theconverters and the control system, threesmall AC air-core reactors, a simpleharmonics filter and some cooling fans. 20MW:18x12m The converters are using a set of six valves,two for each phase, equipped with highpowertransistors, IGBT (Insulated GateBipolar Transistor). The valves arecontrolled by a computerized controlsystem by pulse width modulation, PWM.Since the IGBTs can be switched on or off, the output voltages and currents onthe AC side can be controlled precisely.The control system automatically adjuststhe voltage, frequency and flow of activeand reactive power according to the needsof the AC system.The PWM technology has been tried andtested for two decades in switched powersupplies for electronic equipment ascomputers. Due to the new, high powerIGBTs, the PWM technology can now beused for high power applications as electricpower transmission.HVDC Light can be used with regularoverhead transmission lines, but it reachesits full potential when used with a new kindof DC cable. The new HVDC Light cable isan extruded, single-pole cable. As anexample a pair of cables with a conductorof 95 sq mm aluminum can carry a load of30 MW at a DC voltage of +/-100KV.Handling the cable is easy. Despite its large power-carrying capacityit has a specific weight of just over 1 kg/m.Contrary to the case with AC transmission;distance is not the factor that determinesthe line voltage. The only limit is the costof the line losses, which may be lowered bychoosing a cable with a conductor with alarger cross section. Thus, the cost of apair of DC cables is linear with distance. Insulation: 5.5 mm triple extruded Screen: Copper wire Sheath: HDPE Weight: 1.05 kg/m Voltage: > 100 kV DC Current: > 300 A Power: > 30 MW Conductor: 95 mm^2Aluminum A DC cable connection could be more costefficientthan even a medium distance ACoverhead line, or local generating unitssuch as diesel generators.The converter stations can be used indifferent grid configurations. A singlestation can connect a DC load or generatingunit, such as a photo-voltaic power plant,with an AC grid. Two converter stationsand a pair of cables make a point-to pointDC transmission with AC connections ateach end. Three or more converter stationsmake up a DC grid that can be connected toone or more points in the AC grid or todifferent AC grids. An HVDCLight network can be configured radial or meshed,like any network. The DC grids can be radial with multi-dropconverters, meshed or a combination ofboth. In other words, they can beconfigured, changed and expanded in muchthe same way AC grids are. 3. APPLICATIONS 3.1 OVERHEAD LINES In general, it is getting increasingly difficultto build overhead lines. Overhead lineschange the landscape, and the constructionof new lines is often met by public resentment and political resistance. Peopleare often concerned about the possiblehealth hazards of living close to overheadlines. In addition, a right-of-way for a high voltage line occupant valuable land. Theprocess of obtaining permissions forbuilding new overhead lines is alsobecoming time-consuming and expensive.Laying an underground cable is a mucheasier process than building an overheadline. A cable doesn’t change the landscapeand it doesn’t need a wide right-of-way.Cables are rarely met with any publicopposition, and the electromagnetic fieldfrom a DC cable pair is very low, and also astatic field. Usually, the process ofobtaining the rights for laying anunderground cable is much easier, quickerand cheaper than for an overhead line.A pair of HVDC Light cables can beplowed into the ground. Despite their largepower capacity, they can be put in placewith the same equipment as ordinary, AChigh voltage distribution cables. Thus,HVDC Light is ideally suited for feedingpower into growing metropolitan areasfrom a suburban substation. 3.2 REPLACING LOCAL GENERATION Remote locations often need localgeneration if they are situated far awayfrom an AC grid. The distance to the gridmakes it technically or economicallyunfeasible to connect the area to the maingrid. Such remote locations may be islands,mining areas, gas and oil fields or drillingplatforms. Sometimes the local generators use gas turbines, but diesel generators aremuch more common.An HVDC Light cable connection could bea better choice than building a local powerplant based on fossil fuels. Theenvironmental gains would be substantial,since the power supplied via the DC cableswill be transmitted from efficient powerplants in the main AC grid. Also, thepollution and noise produced when thediesel fuel is transported will be completelyeliminated by an HVDC line, as the needfor frequent maintenance of the diesels.Since the cost of building an HVDC Lightline is a linear function of the distance, abreak-even might be reached for as shortdistances as 50- 60 km. HVDC Light lowest cost AC + Overhead line HVDC Light + cable Cost inside AC grid Distance from the AC grid eliminate local diesel Cost/kWh 3.3 CONNECTING POWER GRIDS Renewable power sources are often builtfrom scratch, beginning on a small scaleand gradually expanded. Wind turbine farms is the typical case, but this is alsotrue for photovoltaic power generation.These power sources are usually locatedwhere the conditions are particularlyfavorable, often far away from the mainAC network. At the beginning, such aslowly expanding energy resource cannotsupply a remote community with enoughpower. An HVDC Light link could be anideal solution in such cases.First, the link could supply the communitywith power from the main AC grid,eliminating the need for local generation.The HVDC Light link could also supply thewind turbine farm with reactive power for the generators, and keeping the powerfrequency stable.When the power output from the windgenerators grows as more units are added,they may supply the community with asubstantial share of its power needs. Whenthe output exceeds the needs of theCommunity, the power flow on the HVDCLight link is reversed automatically, and thesurplus power is transmitted to the mainAC grid. Wind power Small scale hydropower HVDC Light Extruded cable Distant ac- grid Waste gas is usually burned at offshoredrillingplatforms, since it is too expensive,or technically difficult, to use the gas for power generation and transmit it by an ACcable to the main grid on the shore. Thus,the energy content of the gas is wasted, andthe primitive burning process is source ofpollution. With an HVDC Lightunderwater cable transmission, the gas canbe used as gas turbine fuel, supplying boththe platform and the main AC grid withpower. The process of burning the gas ingas turbines would also produce much acleaner exhaust than simple burning woulddo.The DC underwater cable network could easily be extended to other offshoreplatforms. 3.4 ASYNCRONOUS LINKS Two AC grids, adjacent to each other butrunning asynchronously with respect toeach other, cannot exchange any powerbetween each other. If there is a surplus ofgenerating capacity in one of the grids itcannot be utilized in the other grid. Each ofthe networks must have its own capacity of peak power generation, usually in the formof older, inefficient fuel fossil plants, ordiesel or gas turbine units. Thus, peakpower generation is often a source ofsubstantial pollution, and their fueleconomy is frequently bad.A DC link, connecting two such networks,can be used for combining the generationcapacities of both networks. Cheap surpluspower from one network can replace peakpower generation in the other. This willresult in both reduced pollution levels andincreased fuel economy. The powerexchange between the networks is alsovery easy to measure accurately. 4. ADVANTAGES * Transmission by HVDC Light saves the environment by replacing local fossil-fueled generation withtransmission from main AC-grid. * Connecting small scale renewable power to main AC –grid. * HVDC Light is inherent environmentally friendlycables instead of OH transmission lines. * Virtually no magnetic field. * No ground currents because of bipolar transmission. 5. CONCLUSION HVDC Light technology saves theenvironment by replacing remote fossilfuelledgenerators with cost-efficienttransmission of power from efficient andclean, large-scale generation productionunits. The efficiency of a modern, largescale, thermal generating plant is usually 25percent higher than that for a modernsmall or moderate scale diesel generatorplant,Vice versa, HVDC Light provides aconvenient and cost-effective way forconnecting renewable and non-pollutingenergy sources as wind power farms andphotovoltaic power plants to a main grid.The HVDC Light technology in itself hasstrong environmental benefits. Since poweris transmitted via a pair of underground cables, the electromagnetic fields from thecables cancel each other. Any residual fieldis a static field, as opposed to the powerfrequencyfields radiated from AC cables.Since HVDC Light transmissions arebipolar, they do not inject any currents intothe ground. Ground currents can disturbcommunications systems or causecorrosion on gas or oil pipelines.A pair of light-weight DC cables can beeasily plodded into the ground at a costthat is comparable to or less than for acorresponding AC overhead line. Asopposed to an overhead line, anunderground cable pair has no visualimpact at all on the landscape. Usually it’salso much easier to obtain permissions andpublic approval for a cable transmissionthan for an overhead line, especially inresidential areas. ACKNOWLEDGEMENT Our sincere thanks to HOD and FACULTIES for encouraging us to prepare the above document. A special thanks to IEEE.org REFERNCES [1] K. Eriksson, â€Å"HVDC Lightâ„ ¢ and development of Voltage SourceConverters†, IEEE T&D 2002 Latin America, Sà £o Paulo, Brazil, March. [2] L. Carlsson, G. Asplund, H. Bjà ¶rklund, M. Ã…berg, â€Å"Present trends inHVDC converter station design† IV SEPOPE Conference, Foz doIguacu, Brazil. [3]IEEE explorer.org