Designing a 1MW Solar Power Plant

Designing a 1MW Solar Power Plant Introduction CE 1.1 Turn the air con on, its 45 degrees Celsius already, said my mum. The weariness of stifling heat with the tops of dry 45 degrees Celsius radiated in her tone. But there was no electricity for the past 9 hours. Wretched in the state of disbelief, I realized the painful dilemma of Electricity load shedding was worsening day by day. Thats when I thought to channelize my engineering skills to overcome this issue. And it was back then in 7th Semester of my Bachelors of Mechanical Engineering (University of Engineering and Technology, Lahore) in 2012, I planned to use the scorching heat to produce electricity and design an alternative for the conventional method. I later pitched this idea to my professors who took me under their wings and mentored me to design and present it as a final year project. I was heading a group of 4 team members. Background CE 1.2 During my fifth semester in the university I studied a subject related to renewable energy resources and it fascinated me big time. Most of these resources are environmentally friendly and they would be here to serve us even when the other traditional energy resources would be depleted. Especially in country like Pakistan, its the need of hour to explore the renewable resources. Despite having the potential, Pakistan is energy deficient. I decided to work on renewable energy resources during my final year project in an attempt to help the country with potential ways to produce energy. Nature of project CE 1.3 The nature of the project was to study the renewable resources currently deployed in the country and the scope of sustainable energy in the country. Particularly, Concentrated Solar Power was the main focus of the project including development of concentrated solar thermal power by using Parabolic Trough Technology. Objective of the Project CE 1.4 The objective of the project was to design 1MW solar power plant using parabolic trough technology and help Pakistan to overcome energy crisis by using the economical energy resources. Nature of My Particular work area CE 1.5 Being the leader of the group, I had to perform many duties. Some of them are listed below: Assigning tasks to team members Keep track of the work done by group members Arrange meetings between group members and supervisor Selection of technology for solar power Design calculations Report writing CE 1.6 Organizational structure Personal Engineering Activity CE 1.7 After being selected as leader it was my responsibility to start the project right away. So that it could be finished on time. I divided the project into different parts and assigned each part to different member of the group. I had to perform the design calculations and report writing. Other two members had to do literature review, select a storage system and provide conclusion and recommendations. CE 1.8 To control the overall project it was required to set target dates for each activity, I used Microsoft project to help me in project planning. While assigning the tasks to the members, I also made sure to give them a particular time period to finish each task. After assigning the tasks I kept track of their performances by conducting frequent meetings. If someone was lagging behind, I made sure to help him finish the task within advised time. It helped me a lot to finish the project efficiently before the due date. CE 1.9 I had to keep the supervisor aware of the progress of project. During the project I had many meetings with the supervisor for the consultation and as well as to report the progress of team members and myself. I had to keep record of all the activities from start of the project till the end and present them to the supervisor from time to time to see whether we were on track or not. CE 1.10 Basically solar power can be used in two different ways to produce the energy; Concentrating solar power and Photovoltaic. I had to decide which technology we were going to use in our project. The reason behind selecting the concentration technology was that the absorbing materials are more expensive than the reflecting materials. In concentration technology a large surface of reflecting material concentrates the solar power on to a smaller absorbing surface of a collector. Second reason was, due to small size of the collector surface the rate of heat loss from the collector would be low and they can be used at an elevated temperature. CE 1.11 After selecting the concentrating solar power as main source, I had to pick one of the man ways to concentrate solar power like Parabolic Trough, Solar power Tower, Dish String, Fresnel reflectors. Keeping the local conditions in Lahore in mind and to get a little flexibility I selected parabolic trough. Local conditions in Lahore are much suitable to produce power using a parabolic trough and it could also be used with constant tracking or seasonally adjusted, depending upon the efficiency needed and finances available. CE 1.12 To begin with the designing, first I had to find the values of enthalpies at different points of the cycle. After that I had to calculate the energy required from concentration and fluid and cooling media flow rates required to produce 1MW electricity. That energy helped me to decide the field requirement and configure solar filed. CE 1.13 On the basis on the environment locally in Lahore, I had to set some input parameters for the design. The solar irradiation in Lahore was enough to produce the required input temperature and on the base of temperature the value of operating pressure was fixed. Parameters I used, are given below: Power Output at Turbine Shaft Steam Pressure to Inlet of Turbine Steam Pressure at the outlet of Turbine Steam Temperature to Inlet of Turbine Specific heat capacity water CE 1.14 In designing different assumptions were made on the basis of literature review. Assumptions used in calculations are given below Steam Generator Efficiency = 85 Isentropic Efficiency of Turbine Isentropic Efficiency of Pump Reflectors Absorbers Combined Efficiency Land Usage Factor Condenser Water Temperature Difference Solar Insulation CE 1.15 After setting all the parameters and assumptions I did Enthalpy Calculations. The Rankine cycle and line diagram of such a system are shown below Figure 1: Real Rankine cycle (non-ideal) The real life Rankine cycle is composed of 6 processes as shown above in figure 1. Stage 1-2, boiler increases the fluid temperature and pressure to convert it to a point where the addition of latent heat will lead to the conversion of liquid into wet steam, as shown from point 2-3; Stage 3-4 leads to a pressure increase to convert the wet liquid into superheated steam. After the work done by the steam, stage 5-6, the losses in pressure and temperature due to turbine work leading to the next stage where condensation occurs. The working fluid is heated a bit to improve the efficiency of the system and the cycle is repeated again. The process is illustrated in figure 1. The figure 2 shows all these processes in a parabolic trough system. From stage 1-2, concentrated solar energy increases the fluid temperature and pressure. Stage 2-3 converts this fluid into wet steam, using solar energy. During stage 3-4, further addition of energy converts the liquid into superheated steam. Pressurized superheated steam expands in a steam turbine which operates a generator to produce electricity. In the last stage, this low pressure and temperature steam, eventually, condenses into fluid again. Figure 2: Parabolic Trough System The values of enthalpies and entropies at different temperatures and pressures, at different points in Rankine cycle, were taken from the steam table. The enthalpy of steam at the inlet of steam turbine (h4) at the pressure and temperature values of So The entropy of steam at the inlet of steam turbine (S4) at the pressure and temperature values of So Because the ideal expansion in the steam turbine was Isentropic So The entropy of the steam at the exit of steam turbine can be determined from the formula Where The entropies of steam at the exit of steam turbine (SE) at the pressure value of So, by using above given formula, the valve of dryness fraction was To find the enthalpy of steam at the exit of steam turbine (Ideal), following equation was used = The enthalpies of steam at the exit of steam turbine (SE) at the pressure value of Then The isentropic efficiency of the steam turbine was given by the following relation Using equation The actual dryness fraction now can be calculated from the following relation = So The enthalpy of steam after the condenser at the stage 6 was given by V1 is the specific volume of the saturated liquid taken from the steam table at P5 The work of pump was calculated using the formula The enthalpy of liquid at the outlet of pump i.e. at stage 1 was given as So The isentropic efficiency of the pump was given by the following relation Using above equation, the actual value of enthalpy can be calculated So CE 1.16 Using the enthalpies calculated in the earlier step, I calculated the steam flow rate. The energy required to convert the saturated liquid from point 1 into superheated steam to point 4 is given by The work output/kg of steam flow of the turbine was given by The power output at the outlet of turbine was obtained by dividing the system output by generator efficiency so it was given by This output was equal to turbine work output/kg of steam flow multiplied by its flow rate so given by the following formula CE 1.17 Steam flow rate was used to calculate the condenser water flow rate. The heat rejected by the water in the condenser/kg of water flow was calculated as: If the temperature differential of inlet and outlet of condenser is then So, the total energy that we require from solar concentration to generate 1MW electricity was calculated by This is the amount of energy we have to produce from the concentration of solar irradiance using solar field consists of reflectors and receivers. CE 1.18 After calculating the energy required from solar concentration, I used that energy to calculate the size of filed required. I already had the assumed values of solar insulation G and combined efficiency of absorber and reflectors. Reflector area was calculated using following formula Where is the reflector area in m2 So Taking into account the land usage factor Lu=60% So CE 1.19 In the last step I calculated the overall efficiency of the plant by taking ratio of power output to power input. Where So the overall efficiency comes out to be CE 1.20 In safety talks I cautioned my team members to be careful around the hot surfaces. I placed the warning signs near high temperature and high pressure points.I advised my group members to protect their skin by covering it or by using sunscreen, while working outside, so that they could avoid sunburns. Due to these precautions, project was completed without any personal injuries. Summary CE 1.21 After all the hard yards of 6 months, I was able to present my design of 1 MW power plant run by solar power aimed to reduce energy deficiency. I presented it as my final year project (combined power point presentation + project report) in front of project supervisor, chairman of mechanical engineering department and an external examiner. It was a stepping stone in power industry in Pakistan. 1 MW power plant can produced sufficient energy to cater for the normal operation of the community households. Moreover, the innovation could not only reduce the global carbon foot print but it could also shift the reliance from already depleting traditional fossil fuel resources. This project helped to understand that its need of the day to switch our focus to renewable energy resources to cope with energy deficiency, more local councils are now encouraging to switch to micro energy renewable resources and design such plants. In the end, I would like to say that it was a great honor for me to see people getting inspiration from my work and using the renewable energy to fix the biggest problem of the country.

Hiring an Accredited Administrator Essay

Several registered ISO certified companies are providing services to develop your standards according to the ISO. An ISO certified accredited administrator guides you throughout the entire process of standardization. For instance, in writing company’s policy statement, and sometimes even in complex operating procedures. A firm can hire ISO accredited registrar who has knowledge and background about the firm’s business. Nonetheless, the price of accredited administrator and registrar depend on numerous factors like nature and size of business. Objectives of ISO 9000 Design control, quality system, management responsibility, documentation and data control, process control, order entry, training, inspection of test status, delivery, handling, storing, packing, servicing, measurement and test equipment, statistical techniques, and internal quality audit are some of the main objectives of ISO 9000 Quality Management Systems. Cost of ISO 9000 The cost of implementing ISO 9000 standards in any type of company depends on several factors. Usually, gap analysis is employed when evaluating implementation cost. However, the factors which make an outline about cost focus on the following questions: how long will it take to develop your company’s quality management system working with ISO team? Registrar charges vary from country to country. What is the size of your company? Does it conduct business on international level or domestic level? How many people will be involved in setting up the standards whether you hire a person from outside or not? Normally, in gap analysis, companies calculate two kinds of costs: external and internal. Both include services and consultancy professional charges that include gap analysis, system documentation, system developing, training and awareness, system modifications, internal auditing services and so forth. Registrar fees like, application and registration fees, Product cost includes software and publication. Advantages and Disadvantages of ISO 9000 Advantages. The advantages of ISO 9000 are numerous such as maintenance of quality; opportunity to compete with bigger companies; clarity of customer focus; verification of the company; enhancements in facility performances and superiority as a result of implementing and maintaining the process; and increase in customer confidence and satisfaction. According to Ridley, â€Å"in organizations that are registered to ISO 9000 standards, the impact on control systems is significant. Besides, all your business partners agree that your company is producing product in highly standardized environment, which is not a small benefit. (Ridley, 1997) â€Å"The ISO 9000 registration process requires so much documentation and self-assessment that many businesses that undergo its rigors cite increased understanding of the company’s overall direction and processes as a significant benefit. † Moreover, the ISO 9000 certification process emphasis on self-analysis and operations management issues encourages various internal areas or departments of company to interact with one another in hopes of gaining a more complete understanding of the needs and desires of their internal customers†. (ISO 9000: Encyclopedia of Small Business). In addition, small business owners and large firms’ owners have agreed that ISO 9000 standard certification may be a good tool, which ensures funding from joint venture capital firms. According to another researchers Brewer and Mills, â€Å"ISO provides consistency for the end-customer and traceability for the company itself† (Brewer and Mills, 1994) Disadvantages of ISO 9000 Despite the advantages, there are some disadvantages as well. According to Sadiq, â€Å"senior management’s lack of understanding of the benefits they can derive by effectively implementing the standard also plays a role in creating this negative perception. In many situations top management– not understanding the standard or not having been trained in it-starts to view the standard`s requirements as a non-value– adding burden. † (Sadiq, 2002) Business executives and proprietors who are familiar with the ISO 9000 registration process know that this process may take several months to complete. Moreover, too much time is lost in proper documentation, which sometimes looks a hazardous job. According to Bibby â€Å"it virtually ignores the formulas of modern quality management: there is no mandate to reduce cycle time, cut inventories, speed up deliveries, and increase customer satisfaction†. (Bibby, 1996) Nonetheless, to achieve maximum advantage from this standard, standard languages are required for documenting good procedures. A well-managed system that implements practices can be applied throughout the organization. The documentation procedure should cover all parts of the organization within a certain limit and scope of registration in order to insure that quality objectives are met. A third party may be hired to measures audit models and to verify the certification of organizations. Future of ISO. The ISO 9000 is finally being modified according to the growing needs of the business community all around the world. The family of ISO 9000 and 2000, known as the family of Quality Management System standards, was finalized on 2000. According to Meyer, â€Å"the pressure for companies to become ISO 9000-certified is absolutely increasing and will continue to increase†. (Meyer, 1998) Nowadays, these standards are being distributed to the institute of ISO’s worldwide membership. In this regard, the three final draft international standards, which have been published, are as follows. †¢ â€Å"ISO/FDIS 9000, Quality management systems – Fundamentals and vocabulary †¢ ISO/FDIS 9001, Quality management systems – Requirements ISO/FDIS 9004, Quality management systems – Guidelines for performance improvements†. (What’s the Future of ISO? ISO 9000:2000) â€Å"The ISO Action Plan for Developing Countries defines a number of actions intended to mobilize its members, regional organizations and donor agencies. The actions are aimed at promoting developing country participation in ISO, building capacity through technical assistance programmes and enhancing interactions at regional and international levels. † (What’s the Future of ISO? ISO 9000:2000) ISO has planned some points for the developing countries for the period of 2005-2010, which includes the following: †¢ Intensify awareness among shareholders in developing countries for standardization of economic growth, global trade, and reliable development. †¢ Increase domestic and international cooperation in order to share training, experience, communication, technology, and communication †¢ Expand electronic communication and expertise in information technology tools to take part in global standardization †¢ Enhance participation in technical and governance work of international standard organization to voice priorities. Economic Benefits of ISO As most of the domestic and multinational organizations adopted ISO standards, it increased economic growth and played a fundamental role in globalizing the business world. Certainly, standards create environment for economic success. Equal sets of standards throughout the business world provide business partners an opportunity to trade globally without hesitating about product quality. In this regard, the primary objective behind setting one global standard is to reinforce the global business as a channel of economic activity. The fair market value of small firms registered with ISO 9000 in the year 1994 increased dramatically up to 0. 75 percent. International large firms have experienced more than 0. 80 percent worth of their business. As product quality has improved, public limited companies’ share prices have increased. â€Å"In the UK, the DTI commissioned research revealed the following facts: †¢ Standards make an annual contribution of ? 2. 5 billion to the UK economy; †¢ 13 per cent of the growth in labor productivity is attributed to the role of standards; †¢ Standards are an enabler of innovation and facilitator of technological change; and †¢ The economic return from investment in standards makes sound business sense at both the macro and the micro-economic level†. (TC_211_Newsletter_08. doc) Conclusion In today’s world of economy, the barriers of international trade have been knocked down. Domestic and multinational companies have enhanced their level of performance in order to survive in today’s global world. Today, ISO 9000 standards are globally accepted. They help companies achieve cost effectiveness and quality assurance methods. Many small- and large-scale firms around the world have been adopted ISO standards. According to Ingman, a resercher in this area, â€Å"most organizations will not stop with ISO as their â€Å"only† main quality initiative, but rather will continue to work toward the broader concept of total quality management (TQM)†. (Ingman, 1994) References Brewer Peter C. , Mills Tina Y, (Feb, 1994), Journal Article, ISO 9000 Standards: An Emerging CPA Service Area – International Organization For Standardization. Bibby, Thomas, (Apr 1996), ISO 9000, A Catalyst, Not A Solution, Manufacturing Engineering, EPA – Environmental Management Systems/ISO 14001 http://www. epa. gov/OWM/iso14001/isofaq. htm Accessed, May 12, 2007 How to Pursue ISO Certification http://www. isixsigma. com/library/content/c000917c. asp Accessed, May 12, 2007 ISO 9000 †¦ for better or worse,( Sept 25, 1997) American Metal Market, ISO 9000: Encyclopedia of Small Business http://business. enotes. com/small-business-encyclopedia/iso Accessed, May 12, 2007 ISO – International Organization for Standardization http://www. iso.org/iso/en/iso9000-14000/understand/basics/basics9000/basics9000_2. html Accessed, May 12, 2007 Meyer Harvey R, ( March, 1998 ). Journal Article, Small Firms Flock To Quality System – Intl Organization For Standards’ ISO 9000 Certification – Includes Related Articles, Nation’s Business Not Available www. geog. leeds. ac. uk/staff/m. blake/magis/glossary/esriglos. htm QUALITY MANAGEMENT WITH ISO 9000 http://www. bioingegneria. uniba. it/bollettino/qualita/q_management. html Accessed, May 12, 2007 Ridley Jeffrey , (August, 1997), Jounal Article, Embracing Iso 9000 – Generic, Organizational, Quality-System Standards. Sadiq, Naeem, (Oct 2002), Jounal Article, ISO 9000 Standards: Where’s The Value? Ingman, Lars, Journal Article, (Jan 1994), Life After ISO 9000 TC_211_Newsletter_08. doc http://www. isotc211. org/Outreach/Newsletter/Newsletter_08_2005/TC_211_Newsletter_08. doc Accessed, May 12, 2007 What’s the Future of ISO? ISO 9000:2000 http://www. isixsigma. com/library/content/c000917e. asp Accessed, May 12, 2007 Where ISO 9000 came from and who is behind it http://www. iso. ch/iso/en/iso9000-14000/understand/basics/basics14000/basics14000_1. html Accessed, May 12, 2007.

Most Noticeable American Pride Essay Samples

Most Noticeable American Pride Essay Samples Top American Pride Essay Samples Secrets The kind of concluding paragraph will be contingent on the assignment. It might be hard to write a kind of essay for the very first time. Along that exact same line, you may make an enthusiastic statement, assuming that you then back this up! The remaining part of the sections are different based on the kind of assignment. Critical thinking is demanded! Algorithmic art is often known as computer-generated art. The challenge with writing an anecdote is truly creating an intriguing story. What About American Pride Essay Samples? In case the writing assignment demands a specific text structure, there are particular transition words that could help students organize their paragraphs. Everyone wants to be thought about in and often stick to the trends set by students. Understanding how and why it's done is crucial to creating a peaceful community. Many factors demonstrate that. It's possi ble for you to draw the reader in your argument if you advertise that you've learned something which goes against common understanding. You may wish to answer the question as directly as possible, and you are going to want to follow word limits exactly. Every word needs to be ideal, thus don't skimp on effort here. The objective is to take a particular position on the subject. Patriotism was at an all-time high, and the entire country was riding the crest of a gorgeous wave that changed what America would grow to be forever. History is full of instances of influential folks who came to downfall due to the proud personality. America has ever valued the concept of individualism and the significance of its citizens personal beliefs. It is a very rich nation. Pride is a good deal of things at the identical moment. Many take pride in the sort of lifestyle they choose to call home. The Truth About American Pride Essay Samples Finally, the manufacture and distribution of firea rms by American businesses produce economic advantages. Why customers are almost always wrong. How some advertising can be extremely powerful. When you compose a narrative essay, you're telling a story. Without a clearly stated purpose, your reader will not have an idea why they should take some time to read your essay. The quote should apply to the subject of your essay and create the reader think. By comparison, a weak topic sentence will lead to an unorganized paragraph, and the reader is going to be confused because the support or details won't be focused. To begin with, consider the type of sentences that you could open your essay with. The topic sentence demands that student plan what they're attempting to prove in the paragraph till they draft. Please be aware that the variety of sentences of essay conclusion depends upon the amount of paragraphs within your body part. Even 1 sentence in quotation marks can be sufficient. Want to Know More About American Pride Essay Samples? Elaborate guide on the best way to begin an essay After an instructor assigns an essay, among the very first questions that students ask is the way to begin their essays. Students need to be able to a provide an affordable solution or refute objections in every single paragraph. Apart from evaluative essay assistance and online evaluative essay samples, the students may also reach us for the best internet tutoring. Many students ask whether they need to try to compose a college essay that's funny. Additionally, the whole introductory paragraph lets your reader know what your paper is all about and the reason it is important to read your paper. In an evaluation essay, you will want to choose certain criteria to utilize in your evaluation, and you'll need specific proof to back up your statements. Irrespective of the way that you decide to begin a book file, the four strategies outlined here will be able to help you compose an engaging essay. The procedure for grading student papers can be a really boring one.

Walmart Financial Analysis Essay - 1141 Words

Walmart Stores, Inc. (NYSE: WMT) branded as Walmart since 2008 and Walmart before then, is an American multinational retailer corporation that runs chains of large discount department stores and warehouse stores. It is the biggest private employer in the world with over 2 million employees, and is the largest retailer in the world. Walmart operates retail stores in various formats around the world and is committed to saving people money so they can live better and more comfortable. Walmart earns the trust of their customers every day by providing a broad assortment of quality merchandise and services at everyday low prices, while fostering a culture that rewards and embraces mutual respect, integrity, and diversity. The company is†¦show more content†¦They may have some good long term prospects that they can borrow against to meet their current obligations. Overall, liquidity is not a strength for Walmart due to both low quick ratio and current ratio. Asset management In 2011, Walmarts inventory turnover was 11.62 and the industry average was 10.4(stock-analysis). Its fixed asset turnover was 3.88 and the industry average was 3.56, and its total asset turnover was 2.34 and the industry average was 1.56(Stock-analysis). The values calculated for all three ratios mentioned all resulted in substantially different values in a positive way (Appendix B). Historically the values of each ratio have maintained relatively constant, which in this case is not a weakness. Asset management is a strength for Walmart, which ultimately means that they are maintaining their assets in the correct manner in order to have an efficient way of business. Debt Management In 2011, Walmarts debt to equity ratio was that of 72.75 while the industry average was 55 and it exceeded the range of comparability by a significant amount(Stock-analysis)(Appendix B). The debt to equity ratio indicates how much debt a company has for every dollar of shareholders equity. Walmarts value of 72.75 is high especially when considering the trend for the past three years. 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