Analysis Of A Vapor Power Plant

1902 words - 8 pages

Analysis of a Vapor Power Plant8/20/96ME1361 Thermo II3.0 AbstractThe objective of this study is to construct a computer model of a water vapor power plant. This model will be used to calculate the state properties at all points within the cycle. Included is an analysis of the ideal extraction pressures based on the calculated values of net work, energy input, thermal efficiency, moisture content, and effectiveness.4.0 Body4.1 IntroductionSystem to be AnalyzedSteam enters the first turbine stage at 120 bar, 520 °C and expands in three stages to the condenser pressure of .06 bar. Between the first and second stage, some steam is diverted to a closed feedwater heater at P1, with saturated liquid condensate being pumped ahead into the boiler feedwater line. The Terminal Temperature Difference of the feedwater heater is 5°C. The rest of the steam is reheated to 500°C, and then enters the second stage of expansion. Part of the steam is extracted between the second and third stages at P2 and fed into an open feedwater heater operating at that pressure. Saturated liquid at P2 leaves the open feedwater heater. The efficiencies of all pumps are 80%, and the efficiencies of all turbines are 85%.Throughout this report the states will be referenced as depicted above with the numbers 1-13.The analysis of the system will involve the use of the Energy Rate Balance to isolate the specific enthalpies and associated values of temperature, pressure, specific volume, and steam quality. The Entropy balance equation will be used to calculate the specific entropy at all the above noted states.Energy Rate Balance (assume KE&PE=0)dEcv/dt = Qcv-Wcv+Smi(hi) - Sme(he)Entropy Rate BalancedScv/dt = SQj/Tj + Smi(si) - Sme(se) + scvFor simplicity, it is assumed in all calculations that kinetic and potential energy have a negligible effect. It is also assumed that each component in the cycle is analyzed as a control volume at steady state; and that each control volume suffers from no stray heat transfer from any component to its surroundings. The steam quality at the turbine exits will also be constrained to values greater than or equal to 90% (Moran, 337).4.2 Code DevelopmentThe C program "finalproject.c" was developed to calculate the state values given the constraints listed in section 4.1. The program structure consists of three parts:Header/variable declarationCalculation sectionData Report sectionThe Header section includes all the variable declarations, functions to include and system definitions. To obtain accurate data values, this program uses floating point values. The Calculation section is the function that is used to calculate all the state values. In essence this section consists of two nested while() loops that are used to vary the extraction pressures from 12000 kPa to 300 kPa. The while loops are set to terminate when the steam quality becomes less than 90% as defined in the constraints in 4.1. The Data Reporting section is found within the...

Find Another Essay On Analysis of a Vapor Power Plant

Benefits of a Plant-Based Diet Essay

1517 words - 7 pages working? Apparently they are not. The adults and children of the wealthiest nation on earth are fatter and sicker than ever. The reason is that the recommendations are wrong. We were not created to eat animal products, especially the amount recommended. Human beings were created to eat plants and by eating a plant-based diet rich in whole foods, can not only prevent and reverse many chronic diseases, but also extend our life span. How can we be so

Article Analysis: “Environment Group Aims to Stop Work on Power Plant”

542 words - 2 pages In his article “Environment Group Aims to Stop Work on Power Plant”, Tom Parsons reports on two unnamed environmental groups who are asking the Arkansas Supreme Court to order that all work on a new power plant cease until further environmental studies have been completed. This article is written in the inverted pyramid style (nice use of a related term). This style presents the most important information first, drawing readers to the

Its about a nuclear power plant and the goods and bads about it

778 words - 3 pages I was recently looking over two articles over the Ginna nuclear-power plant accident in different magazines. The first being Time, whose article in the week of February 8th, 1982 was titled "Springing a Radioactive Leak." In the same week authors, William D. Marbach, Susan Argrest, John Carey and Mary Lord, from Newsweek Magazine published a similar article titled "Again a Nuclear Mishap." When reading these articles I discovered just how

Environmental Impact Analysis of Cement Plant in Ethiopia

2226 words - 9 pages , methodology and conceptual framework. In Water Pollution (pp. 1-57). Springer Berlin Heidelberg. KORONEOS, C., ROUMBAS, G., & MOUSSIOPOULOS, N. (2005). Exergy analysis of cement production. International Journal of Exergy, 2(1), 55-68. KUMAR, T. J. & RAWANI, A. (2012). Environmental impact analysis: a case study of acc cements plant. Journal of Environmental Research and Development Vol, 7. LAWRENCE, D. P. (2007)a. Impact significance

An analysis of Wireless Power

3405 words - 14 pages The fundamental idea of wireless power has been around for more than a century. In 1891, Serbian American inventor Nikola Tesla successfully demonstrated wireless transmission of power and high frequency energy in Columbia College. [1] The concept of wireless electricity was developed by Tesla. The idea behind this technology focuses on the Sun being positively charged and the Earth being negatively charged, the Tesla generator can utilize these

Power of a Slaveholder

1042 words - 5 pages The Power of a Slaveholder Frederick Douglass, an African American slave who was deprived the privilege to tell his own birth date, wrote, Narrative of the Life of Frederick Douglass, an American Slave. As stated in the title, this particular work is a story of an enslaved man who obtained freedom through the power of knowledge. Moreover, the debate at hand proves why slaveholders engage in displays of power over their own slaves. A slaveholder

Power of a Leader

1257 words - 6 pages In the 1600-1700’s, the English and the Dutch colonised South Africa. The White ruled the country and there were only a few who were brave enough to take a stand. Every change needs a leader. One of the few who risked his life to protect his people was Nelson Mandela. He tried several methods for his voice to be heard. At the same time, he selected his methods with caution so as to not hurt any innocent individual. Mandela, also referred to as

The Effect of the Environment on a Plant´s Growth

931 words - 4 pages obviously good since the growth towards light gives the plant a greater exposure of light. The growth of one plant will also be affected if there is another plant growing next to it. If a plant is alone, it will grow faster since it will not have any competition to get light and water, but if there are two plants next to each other, they will struggle and will not grow as much as the plant that is alone. The growth of plant requires a copious

Investigating the Rate of Transpiration in a Mesophyte Plant

1327 words - 5 pages Investigating the Rate of Transpiration in a Mesophyte Plant Experiment to investigate the relationship between the number of stomatal pores on the upper and the lower surfacesof the leaves of a mesophyte plant and the rate of transpiration from those surfaces. The aim of the experiment The aim of the experiment

Analysis of "A Woman’s Beauty: Put Down or Power Source?" By Susan Sontag

975 words - 4 pages In her essay “A Woman’s Beauty: Put Down or Power Source?” Susan Sontag masterfully with just few strokes undoes the signification of the mythology of the feminine. She ponders the opposite pair of concepts of beautifulness and handsomest in a deconstructionist fashion. She describes the violent coexistent in which both concepts concur. However, after effectively have exposed the way these oppositions function and understanding the distortion of

Analysis of A Woman´s Beauty: Put-Down or Power Source by Susan Sontag

1064 words - 5 pages In "A Woman's Beauty: Put-down or Power Source," Susan Sontag portrays how a woman's beauty has been degraded while being called beautiful and how that conceives their true identity as it seems to portray innocence and honesty while hiding the ugliness of the truth. Over the years, women have being classified as the gentler sex and regarded as the fairer gender. Sontag uses narrative structure to express the conventional attitude, which

Similar Essays

Plant Of Plentiful Power Essay

972 words - 4 pages make paper out of hemp than out of trees (Martino). These tycoons decided that hemp had to be banned, so they started a smear campaign against the plant to help protect their profits. The basis of their campaign was to create the impression that those who smoke marijuana become dangerous and delirious. These tycoons made propaganda films depicting men slaughtering their families with axes after smoking marijuana once. All of the media attention

The Plant Of Plentiful Power Essay

961 words - 4 pages struggling economy in multiple ways. Medical marijuana is a taxable drug that is expected to bring the government of colorado over $578,000,000 in the first year alone (Miles). It is also a natural resource that has the practicality to make the cotton, paper, soybean and fossil fuels industry more efficient and eco-friendly (Marijuana). Medical marijuana comes from the hemp plant. After the marijuana is harvested from the plant the rest of the

How A Nuclear Power Plant Works

533 words - 2 pages German physicists (Otto Hahn, Fritz Strassmann, Lise Meitner and Otto Frisch)After all these findings it's in the Soviet Union in 1954 that the first nuclear power-plant was built to produce electricity.In the years after the construction of the first nuclear power plant, many improvements had occurred, especially in the treatment of waste, safety and energy conservation, which allowed to have plants of different generations.Nuclear Power: A

Analysis Power Of Computers

1249 words - 5 pages features. After extraction of features, Eigen-features of them are obtained. Then each input feature is transformed to the Eigen space and based on Euclidean distance four similar feature classes provide the best description for the input feature is selected. Efficiency of proposed method is compared with the statistics collected from 29 individuals. The results indicate that the analysis power of computers in many cases is more than human. Keywords