Electricity Generation Using a Wind Turbine Essay Example for Free

Electricity Generation Using a Wind Turbine Essay Wind turbines are machines built for generation of electricity. The electric power is generated by harnessing the wind speed to drive the shaft that connects to the gears assembled to amplify the amount of energy produced. Aside from wind power, other forces, like gravity and thermal energy, also affect the rotation of the blades, which in turn affect the electricity generation process. This research is aimed at creating a simple wind turbine that is capable of generating electricity. The process will be explained using the principles found in physics such as the law of gravity, electromagnetism, thermodynamics, and momentum. Materials and Method The wind turbine setup was created using these devices: hub, three fan blades, metal box, two sets of gears, copper wire, a permanent magnet and volt meter, two rods of different sizes and couple heat sinks. These devices were then assembled to a working wind turbine. First, the blades were attached at an angle of 20 degrees. Then the gears were connected to the metal hub. The gears were then connected to a permanent magnet that was used to generate the electricity. The magnet was coiled with 80 turns of copper wire (about ? inch) for generation of power. It was then spooled to a steel block which helped increase the voltage just like a transformer. Greased bushing was also set up between the two gears and the hub. The perforated cylindrical block was placed on both rods to serve as a heat sink. The second rod was bent at the tip to change cyclic motion to vertical motion to the magnet. Finally, the wind turbine was mounted on a 10 feet tall support above ground level and was observed. Discussion The wind turbine was observed to see how it can generate electricity or if it can. As the wind blew on the blades, they turned along with the shaft. The shaft was connected to the gears that were also connected to the permanent magnet. When the magnet moved, the volt meter needle deflected which meant it detected electric power from the wind turbine. The wind turbine was successfully set up and generated electricity. The process of converting wind energy into electric energy can be explained using some of the principles in physics: law of gravity, electricity and magnetism, thermodynamics, and momentum. While the whole setup depends on wind movements, other types of forces also affect the generation of electricity such as gravity and friction. Newton’s first law of motion states that â€Å"an object at rest will remain at rest while an object in motion will remain in motion. † This is also called the Law of Inertia or the resistance of an object to change its state of motion. Mass, being the property of matter, is used to measure the amount of inertia. This mass also causes gravitational field; the bigger the mass, the stronger the field. Consequently, in the presence of another object of different mass, their gravitation forces affect one another, that is, they attract one another. Earth is an example and the assembled turbine fan is the other object. Since the fan has smaller mass than the earth, it tends to fall to the earth or that the earth pulls it down. The force of attraction between earth and gravity is computed as mass multiplied by acceleration due to gravity (Wfan = mg); the result of which is also the weight of the fan. This concept can be used to explain why the turbine fan turns when the wind blows on it. Aside from the streamlined design of the blades allowing smooth air flow, the ‘pull’ force of gravity also helps the fan turn on its place or as long as it is mounted to the support. Next is electricity and magnetism. When the fan turned, the gears connected to the magnet also turned. We know from Hans Christian Orsted that electricity goes together with magnetism putting sense to the term electromagnetism. Electric wires do have magnetic properties and magnets also have electrical properties. This is can be shown in the wind turbine setup. The general principle in producing electricity using magnets and coils of wires is called electromagnetic induction. Faraday developed the law of electromagnetic induction stating that â€Å"the induced electromotive force in a closed loop is directly proportional to the time rate of change of magnetic flux through the loop. We already know that magnetic flux is the measure of quantity of magnetism considering the strength and extent of the magnetic field. Thus, the magnetic field of the permanent magnet and the rotating motion generates electricity. This explains how kinetic energy from the wind is converted to electric energy. However, not all of the kinetic energy from the wind movement is converted to electric energy. In other terms, the kinetic energy is not conserved. This is basically due to friction. Friction is not a conservative force. By saying conservative, we mean it can be converted to other forms without losing portions of the original amount. An example is the gravitational force. Any object that falls from a certain height above the ground with initial potential energy (PE) converts all of it to kinetic energy (KE) as it reaches down the level. Same with when the object goes up. The original amount of KE is totally converted to PE. Friction does not behave this way. For example, the initial energy of a pusher pushing a box one meter away cannot regain the energy consumed even if the box is returned to its initial position. This is due to friction. What happened to the lost energy? They all go as heat energy, that is, wasted energy. In the wind turbine, change in the temperature is observable, especially in the gears and the rods. This is because they are all in contact while utilizing the wind power to move. Because of friction, the gears and the rods will heat up in the long run. It can damage the setup, starting from the parts with intense friction. In order to counter this, a heat sink has to be installed. Conclusion The wind turbine was successfully assembled and electricity was produced. The electric energy was converted from kinetic energy derived from the wind movement. When the blades turn, the rods connected to the mechanism turned and by magnetic induction, electricity was produced. Wind power is then a good source of kinetic energy needed for generating electricity. I suggest we put up wind turbines to harness the kinetic energy of the wind. It can help minimize the cost of power generation and we can also avoid the adverse environmental effects of using petroleum products.

Rain Main Essay -- Film Movies

Rain Main Rain Man, a film about an exceptional person, portrays the life of Raymond Babbot and his struggle to be understood and loved by his brother Charlie Babbot. This academy award-winning drama stars two incredibly talented actors - Tom Cruise (Charlie) and Dustin Hoffman (Raymond). These two brothers, separated at a young age by Raymond’s exceptional condition, find themselves later in life brought together by their father’s death. The movie grabs the heart of it’s audience in an attempt to bring together the life of the â€Å"exceptional† person with that of the â€Å"normal† mainstream life. The Rain Man drama begins with a young man (Charlie) sorting through his acceptance with his father’s death, or shall I say basically waiting to find out exactly what his inheritance may be. The Babbot family never really had a history of â€Å"togetherness† as Charlie and Raymond’s mother lost her life at their young age and while Charlie was three Raymond was sent off to WallBrook, a facility meeting the needs of exceptional people. As the inheritance is read to Charlie, he finds himself left with only a Buick convertible and a rose bush, while the rest of his father’s $3.5 million estate was left to a trustee (a director at the WallBrook facilities). Distraught with the idea that someone else has the money that Charlie needs, he heads off to meet with the trustee at WallBrook. Once there, Charlie Babbot finds himself not helped at all and upon leaving meets the genius...

Customer Relationship Marketing Essay

To understand CRM (Customer Relationship Marketing) in hotel industry (Millennium Seoul Hilton), and focus on the importance of loyalty guests who bring on most of organization profit by developing of guest recognition and rewards program. Introduction Background The growing realization that keeping the customers you have is as important as customer acquisition, has come about because of the cost involved in attracting new customers. This realization has evolved into understanding a customers lifetime values (F Buttle, 1996).   By doing this, you can be selective about who you try to keep as well as who you want to attract. Some scholars maintain that customer retention affects the bottom line. They further suggest that a 5% increase in customer retention would create a 125% increase in profit (F Buttle, 1996). Customer relationship management can be regarded as the art of employing rhetorical, experimental and personal information in order to personalize customers’ stay while creating incremental revenue opportunities (F Buttle, 1996). So for example, knowing that a customer had a less than memorable experience in the hotel provides the hotel manager with a chance to win them back the next time they are in town. Objectives By use of customer relationship management, the hotel can develop a comprehensive guest profiles for reservation information. This demonstrates to guests that the hotel is in touch with their needs.   It can also drive customer-centric data down to the transaction level, thereby allowing the workers and the guest-facing technology to deliver greater value to the customers (F Buttle, 1996).   Further, customer relationship management can create a realistic profile on the spending and stay patterns of the guests, thereby allowing the hotel to formulate guest-centric marketing for increased loyalty and spending (F Buttle, 1996). The idea of ‘cherry picking’ valuable clients and directing more resources to these clients has gained tremendous significance in the hotel industry.   Clients communication are such that account managers regularly network on the clients to ensure that they are happy in the way contracts are proceeding, and close relationship are build up. Therefore, my research objective is â€Å"to understand the significance of customer relationship marketing† in hotel industry, with criteria as follows: †¢ To examine customer relationship marketing. †¢ To evaluate the importance of loyalty guests who brings on most of organization profits. †¢ To illustrate the importance of developing of a guest recognition and reward programs in hotel industry. Aims This research paper will aim to identify and critically review the theories of customer relationship marketing in a hotel industry.   It will also aim to critically evaluate procedures of customer communication instruments used in the Millennium Seoul Hilton.   The paper will further examine the limitation of communication of customers’ relation tools used as well as providing the recommendation and acknowledging the advantages of employing these customer relationship marketing tools. Literature Review The main idea behind relationship marketing is to build a strong relationship with customers in order to retain them instead of concentrating efforts on recruiting new one.   There are various factors which influence customer retention.   They include high quality products in order to encourage repeat purchase and valuing customer’s needs with loyalty, which can be generated by excellent customer service (F Buttle, 1996).   Moreover, taking long-term marketing decisions for instance, continuous improvement or innovation to keep ahead of customer’s needs is important in retaining customers.   Further, frequent customers contact to establish their profiles in order to ensure accurate customer targeting of goods, services and information, can be of a great help in creating customer loyalty (F Buttle, 1996). For this dissertation, the main areas which need to be focused on are marketing process, situation analysis, marketing strategy, marketing mix decision, and implementation and control, whereby the works of many authors in these fields will be explored. Studies and researches which has been done by these authors brings great literature resources to the   importance of relationship marketing focus on customer, which constitutes customer relationship marketing, customer trust and commitment, customer loyalty as well as guest loyalty program approaches and general frame work for developing and managing a good customer base.   For example, there are literature studies and/or research made on hotels Intercontinental, Meritus Mandarin, Holiday Inn, and Norfolk hotel among others which allows this dissertation to represent the model group. This dissertation will be explored on the themes of the importance of customer relationship management as it affects customer loyalty by developing of guest recognition and rewards program.   Another important theme which will be investigated in the dissertation is how a hotel can utilize relationship marketing to retain its customers.   These main themes will be explored by use of works written by scholars and all that in the field of customer service and customer care. Methodology My dissertation will apply both qualitative and quantitative research methods.   A comprehensive literature review and depth interviews will be carried out as part of my quantitative research. For primary research, depth interview is selected for my study, as it focuses on hotel industry where emphasize should be placed on people’s values and attitudes.   Therefore, it is a good way to explore the importance of customer relationship management, and understanding the process of implementing strategies to build a strong customer base in a hotel industry. This would also bring more intensive understanding to my research, and the required respondent(s) should be specialists in customer relationship marketing in hotel industries.     Moreover, surveys/questionnaires will also be carried out to understand the significance of customer relationship marketing in creating a strong customer base, according to different people from different background in today’s world. A case study of Millennium Seoul Hilton will be researched. This is because it is a well known hotel by many travelers, and therefore will provide travelers and business customers for me to obtain different perception according to different backgrounds, age and gender. Moreover, the staff of the Millennium Seoul Hilton will also be part of sample population   There will be four age groups that is 17–26, 27– 6, 39-46, and 47-56 with a total of 200 respondents. Secondary research data will be collected through different established resources, such as textbooks, journals, articles and internet in the way of literature review. This is because secondary research will validate my dissertation and support to justify my reasons and findings. Secondary data will be used first to conduct the research, before conducting primary research. This will be done because secondary data may contain information that is essential for conducting this research. Secondary research can allow collection of general information such as overview of Renaissance Seoul hotel, service to guests, guest room department, GRO for receiving VIPs, Marriot Rewards, Westin Chosun Hotel, and outlook of Intercontinental Hotel among others, which can be difficult and expensive to gather via primary research. Limitations The main practical difficult in this research will be the challenge to find the right person for depth interview.   In order to fulfill research objectives, the responder must be an individual who is a specialist in customer relationship marketing, specifically in the hospitality industry. This is because such individuals are familiar with the strategies, challenges and solutions which can help me go through my dissertation. However, such individuals have a higher reputation and usually have tight schedule and would be also be hard to each. Further, I am not familiar with specialists who are in the field of customer relationship management.   Another challenge is choosing Millennium Seoul Hilton as a place to conduct surveying and questionnaires.   This is because 200 sample is required to validate my research, and would be a great challenge to accomplish this myself due to concern of time, organizing and conducting this survey.   Moreover, it is also difficult to ask for help in conducting this research because the possibility in which I am able to hire few people to assist me will be costly. Additionally, individual who are asked may not be willing to respond according to the question asked, cooperates and/or even participate in this study.   Confidentiality issues for the respondents participating in the survey/questionnaire would be kept as anonymous due to Data Protection Act.   This is not required in this study. There are no specific ethical issues which need to be considered.   This is due to the fact that the survey/questionnaire is not targeting any groups and/or specific persons. Finding and Analysis The data which should be collected through survey/questionnaire for this research will be analysed and coded in SPSS system.   This is comprehensive statistical software that includes capabilities for data analysis, data management and programming (Malhotra N & Birks D, 2005).   Additionally, it enables analysists and researchers to uncover key facts, patterns and trends.   The interview would be assessed using analysis of verbal data, dividing the whole interview into section of main focused area along the answer from the respondents. The information collected through surveys/questionnaire will be used for descriptive purposes of identifying the relationship between customer relationship marketing and retention of customers according to age, gender and occupation, whereby correlation analysis and descriptive statistics would be utilized (Malhotra N & Birks D, 2005). Descriptive statistics is used to describe and summarize the basic features of data collection using a combination of techniques, such as graphical, tabular and summary (Malhotra N & Birks D, 2005).   In the findings of analyzed data through different analysis techniques, I would support my development of the dissertation.

Alcohol Is The Most Widely Used Social Drug Essay

Alcohol is the most widely used social drug in New Zealand. Heavy drinkers risk serious alcohol related harm. Alcohol is a social drug that affects people in different ways, while a small amount of alcohol may be beneficial to the heart for some older people, ‘risky’ drinking can cause serious health, personal and social problems. Heavy drinkers, binge drinkers and very young drinkers are at risk. Binge drinking is a particular problem among younger people, but anyone who drinks heavily or drinks too much in one session is at risk of both immediate and long-term alcohol related harm For children and young people under 18 years, not drinking is the safest option. Those who are under the age of 15 years of age at the greatest risk of harm from drinking alcohol and not drinking at this age is especially important for young people aged 15-17 years, the safest option is to delay drinking for as long as possible. If 15-17 year olds are drinking alcohol, they should be supervised, drink infrequently and at levels usually bellow and never exceeding the adult daily limits. Effects of alcohol on health: †¢ Heart – Raised blood pressure and triglycerides (especially after binge drinking), damage to the heart muscle and stroke. †¢ Brain – Brain damage, tremors, dementia and nerve damage. Alcohol is a depressant drug and effects your co-ordination, self-control, judgment and reaction time. †¢ Stomach – Stomach inflammation (gastritis) and bleeding. †¢ Liver – Cancer, HepatitisShow MoreRelatedEssay about Alcohol: A Double Edge Sword1043 Words   |  5 PagesAlcohol is historically one of the oldest known drugs to mankind. It is ingested orally and comes in many varieties. It is attractively packaged in alluring bottles and cans; which can seduce the unsuspecting individual and lead to a life of unrelenting misery, imbued with a potentially ruinous outcome. 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