Brayton Cycle Lab Report Essay Example

Brayton Cycle Lab Report Essay Example Brayton Cycle Lab Report Paper Brayton Cycle Lab Report Paper In this one hour course, the open, simple Brannon Cycle used for stationary rower generation is considered providing thrust instead of power output. In order to keep the scope of the thrust analysis simple, the working fluid exiting gas turbine expands to the atmospheric conditions final working fluid exit pressure is equal to the ambient pressure. The Brannon Cycle thermal efficiency is presented only for the air as the working fluid. The thermal efficiency derivation is presented with a simple mathematical approach. The Brannon Cycle is presented in a T s diagram and its major performance trends (specific propulsion output and propulsion output) are looted in a few figures as a function of compression ratio, gas turbine inlet temperature and working fluid mass flow rate. It should be noted that this online course does not deal with costs (capital, operational or maintenance). In this course, the student gets familiar with the Brannon Cycle, its components, T s diagram, operation and major performance trends. This course includes a multiple choice quiz at the end. Brannon Cycle (Gas Turbine) for Propulsion Application Analysis Performance Objectives At the conclusion of this course, the student will: Understand basic energy conversion engineering assumptions and equations Know basic components of the Brannon Cycle (Gas Turbine) and its T s diagram Be familiar with the Brannon Cycle operation Understand general Brannon Cycle performance trends Brannon Cycle (Gas Turbine) for Propulsion Application Analysis Introduction Over the years, gas turbine has become the premier propulsion generation system. Gas turbines are compact, lightweight, easy to operate and come in sizes ranging from several hundred kilowatts to hundreds of megawatts. Gas turbines require relatively low capital investment, have high operating flexibility, high thermal efficiency and can be used for various industrial applications. Gas reburies can help provide reliable propulsion to meet the future demand using both high and low heat content fuels, with low emissions. Table of Contents Brannon Cycle (Gas Turbine) for Propulsion Application 2 Analysis Assumptions. .. 9 Governing Equations 10 Input Data . 10 Results 11 Conclusions.. 12 Brannon Cycle (Gas Turbine) for Propulsion Application This section provides a Brannon Cycle analysis when the working fluid is air. In the presented Brannon Cycle analysis, only air is considered as the working fluid behaving as a perfect gas specific heat has a constant value. Ideal gas state equation is valid pa = ART. A gas turbine is a heat engine that uses a high temperatur e, high pressure gas as the working fluid. Combustion of a fuel in air is usually used to produce the needed temperatures and pressures in the gas turbine, which is why gas turbines are often referred to as combustion turbines. Expansion of the high temperature, high pressure working fluid takes place in the gas turbine. The gas turbine shaft rotation drives an electric generator and a compressor for the working fluid, air, used in the gas turbine combustion. Many gas turbines also use a heat exchanger called a recuperate to impart urbane exhaust heat into the combustions air/fuel mixture. Gas turbines produce high quality heat that can be used to generate steam for combined heat and power and combined-cycle applications, significantly enhancing efficiency. Air is compressed, concentrically, along line 1-2 by a compressor and it enters a combustion. At a constant pressure, combustion takes place (fuel is added to the combustion and the air temperature raises) and/or heat gets added to air. High temperature air exits the combustion at point 3. Then air enters a gas turbine where an isentropic expansion occurs, producing power. Air exits the gas turbine at point 4. It should be mentioned that air at point 1 enters the compressor and the cycle is repeated. Figure 1 presents a Brannon Cycle schematic layout. Figure 1 Brannon Cycle Schematic Layout Figure 2 presents a Brannon Cycle temperature vs.. Entropy diagram. Figure 2 Brannon Cycle Temperature vs.. Entropy Diagram In order to keep the scope of thrust analysis simple, air exiting turbine expands to the atmospheric conditions exit pressure is equal to the ambient pressure (Pl = pa). It should be pointed out that this material deals with the open Brannon Cycle.

Jerusalem Jerusalem and Israel Museum Essay

Jerusalem Jerusalem and Israel Museum Essay Jerusalem: Jerusalem and Israel Museum Essay Jerusalem. Filled with facts and religion. Jerusalem is a place many people have fought over. It seems to be the one focal point for many religions. I am going to talk about the main places in Jerusalem you may visit in your lifetime, and the times you might visit them. Judaism The Western Wall. The builders of the Western Wall could never have imagined that one day their most humble creation would become the most important religious symbol for the Jewish people. Indeed, when it was built some 2000 years ago it was only a retaining wall supporting the outer part of the Temple Mount, upon which stood the Second Temple. (The Second Temple was constructed around 520 BC.) Many Jews come to celebrate their Bar Mitzvah. The Hurva Synagogue The debris of the Hurva Synagogue are on the west side of Hurva Square in the Jewish Quarter. Very little is left of the synagogue except for a striking, slender arch. Erected in 1977, the arch is 13m high and spans what was the central hall. The ruins have been made safe for visitors to wander around and information boards help them imagine the great edifice that once stood here. Israel Museum Opened in May 1965, the Israel Museum is a world-class museum and an outstanding example of modern Israeli architecture. The most popular part of the Israel Museum is the Shrine of the Book, with its distinctive onion-shaped top. The roof was designed by American architects Kiesler and Bartos to resemble the jar covers in which the Dead Sea Scrolls were discovered in 1947. Inside, a long, subtly lit passageway, designed to bring to mind the environment in which the scrolls were found, has an everlasting exhibition on life in Qumran when the scrolls were written. Christianity The Church Of The Holy Sepilchre Inside the Church of the Holy Sepulchre visitors will find the place where the Virgin Mary received her son's body. This spot, marking the thirteenth post on Christ's journey to his death, symbolically features a statue of Mary with a silver dagger wedged into her chest. Christ's tomb marks the fourteenth and last post on the Via Dolorosa, and features a massive marble structure believed to be Jesus' original tomb. The Church Of St John The Bapsist Nested in the hills of Ein Kerem, visitors to the church of St. John will also enjoy its picturesque surroundings. Ein Kerem is known for its charming winding streets, artisan stores and homely cafes. Two other churches are within walking distance of St. John's church, and are well worth a visit when on a Christian tour to Israel. The birth and life of Saint John the Baptist appear in the Gospel of Luke, where his family lineage and prophetic abilities are professed. It is in the Gospel of Luke that reference is made to John's birthplace in Jerusalem. Church Of All Nations Sometimes referred to as the Basilica of Agony, the Church of All Nations is situated at the feet of the Mount of Olives. It is believed to be the place where Jesus was last seen praying before he was betrayed by Judas and captured by the Romans. The Garden

Analysing Fashion Consumer Motivations for Shopping Online-data Essay

Analysing Fashion Consumer Motivations for Shopping Online-data analysis - Essay Example The paper "Analysing Fashion Consumer Motivations for Shopping Online-data analysis" investigates the motivations of the fashion consumer in the online shopping. This would therefore be quite ideal as it would stimulate he consumer demand by motivating them to go and make purchase concerning the products. The business entity would so realize better sales and hence optimize on the profit margins. Bearing in mind that the marketing is done online, it is important to reiterate that a large geographical coverage will be covered and this will therefore be quite beneficial to the firm as its products will be globally recognized and accessed by the various consumers. This will as well possibly stimulate the business to involve itself in globalization to enable all the consumers to enjoy the products without any shortage or failure. It is important to note that demography is a very broad classification that encompasses a lot within it. The variables that form the demographics include things to with the age of the customers, their sex or gender and any other component or category that make up a given population. These could be levels of education as well as the category of individuals in a given population based on status, religious believes status as well as the races of different individuals. In the paper, it can be clearly noted that the minimum age that was in the marketing exercise that to mean whose products are sold was the age if 15 years of age with the maximum age being over 55 years.