Comparison of Wren Micro-turbojet Engine and Wren turbo-drop

Comparison of Wren Micro-turbojet Engine and Wren turbo-drop Introduction In the following report, one will be analysing and comparing the wren micro-turbojet engine and the Wren turbo-prop, the engine will be tested in the Aviation laboratory in the houldsworth aviation laboratory, here the tests will be carried out, but before the test s are carried out on each of the propeller that needs to be used for the turbo prop must be chosen. The propeller will be chosen in its efficiency in a certain variable which will be chosen later in the report, there is a choice of a few different propellers, tests shall be ran on each different propeller with the results been recorded by the FADEC. Once the propeller has been chosen tests shall e ran on both engines, the results will be analysed with numerous variables, Health and safety During the course of the lab work, health and safety will play a big part in keeping people safe, Engines pose many possible hazards which are listed below: Noise: The engines that will be used will produce a loud noise that is capable of damaging hearing permanently; therefore the test will be run with the testers wearing ear protection to prevent permanent ear damage. Fuel: fuel poses numerous threats in the lab; the highly volatile liquid can produce vapour that can cause an explosion so therefore all fuel must be kept in a sealed container that must be kept sealed and stored in a cool, dry place away from irresponsible personnel. Fuel is also irritable when in contact with skin so therefore gloves must be worn when in contact with the substance. The engines: the engines themselves pose a huge health and safety risk, the engines contain many objects in motion which can cause a hazard if any of the objects become loose, which could result in a projectile being thrown across the room, to eliminate this risk, the tests will be carried out in a separate room from the testers. The engines also produce fumes which are harmful to humans so an extraction pipe is now attached to the exhausts to remove most of the fumes but testers must be wary that the extraction system may not be 100% efficient so contact time after the runs must be kept minimal. As engines must be run correctly to be run safely, inexperienced testers must always be supervised by personnel with sufficient experience with the engines. The fumes that are produced by each engine must be sufficiently vented away from the area as they are a hazard to health. Extraction system failure At the beginning of February 2010 the group was told that the lab where the engine runs were to be carried out had been ruled unsafe due to the failure of the ventilation system had failed. It was possible that the test could not have been carried out, which the whole group was disheartened by, but the group pulled together and all tried to find a solution for the problem, many avenues were explored, even the possible opportunity of the back of a restaurant. Gareth Atkinson contacted multi flight about the possibility of running the engines at their base as it is located at Leeds-Bradford airport, Multi flight obliged so therefore Gareth Atkinson filled out the risk assessment form shown in appendix A. By the time Multi flight replied back with their permission the group decided that that time was against us for running the engine tests at Multi flight, results from previous engine runs were used instead. The Jet Engine The Engine has proved to be an innovative piece of machinery and has allowed the aviation industry to be what it is today, nearly all of the innovative aircraft of today and conceptual aircraft of tomorrow are all powered by the same type of engine the jet engine. The first form of jet propulsion device was first patented by a French engineer Renà © Lori in 1913 but the design remained conceptual as the design needed heat resisting materials that were not available at the time plus the reason that the jet engine was not suitable to fly at the low airspeeds as they did at the time (1996a) The design of which is shown in figure 1. Not until 1930 did frank whittle receive a patent for a jet engine, Frank whittle went on to build the first jet engine which had its maiden flight 11 years after its patent was received. From this basic foundation more advanced jet engines were produced. Since this first prototype the jet engine has developed from this early prototype to power aircraft that travel faster than sound. The jet engine works by compressing air adding fuel and combusting the mixture using the pressure increase to accelerate the air rearwards out of a propelling nozzle. The compression is the first stage of a gas turbine engine, there are many different configurations of compression the first form was the centrifugal compressor, which is the same compressor is fitted to the Wren micro-gas turbines that will be tested in this dissertation. Centrifugal compressor The centrifugal compressor essentially does what it says on the tin and compress the air using centrifugal forces, the air is compressed by an impeller which is attached and rotated by a shaft that is connected to the rear turbines, which convert the pressure, velocity and heat energy from the exiting gas in to mechanical energy to rotate the shaft which turns the impeller at high speed. The air introduced continuously throughout the running of the engine through to the eye of the impeller which then enters the rotating guide vanes and due to centrifugal forces causes the air to move towards the tips of the impeller; here the air enters the diffuser which is a system of stationary(Rolls-Royce Limited., 1996) ducts which are designed to convert the kinetic energy of air stream into potential energy, which further increases the pressure of the gas. Below is a diagram showing a cross-section of the impeller and the changes in pressure and velocity throughout the impeller: From figure 2, the graph at the right shows the pressure and velocity changes at each stage of the centrifugal compressor, as the air enters the eye of the impeller. The air is subjected to a centrifuge which increases the pressure and velocity of the airstream, the air then passes through to the diffuser section where the passage of divergent nozzles convert the kinetic energy into pressure energy. The graph shows that half the pressure rise occurs in the impeller and the other half in the diffuser section. (Rolls-Royce Limited., 1996). Axial flow compressors Axial flow compressors have a higher compression ratio than centrifugal compressors provided air which is at a higher pressure therefore used over centrifugal compressors as the higher pressure give better performance. Axial flow compressor consists of alternating rotor and stator blades, where each stage, which consists of a row of rotating blades followed by a row of stator blades, increases the pressure by a small amount so therefore several stages are required to give the pressure increase required. Where many stages of compression operate on one shaft it becomes necessary to vary the stator vane angle to enable the compressors to operate effectively at speeds below the design conditions. (Rolls-Royce Limited., 1996). A single spool compressor consists of one rotor assembly and stators with many stages as required achieving the desired pressure ratio, a multi-spool compressor of two or more rotor assemblies, each driven by their own turbine at an optimum speed to achieve higher pressure ratios and to give greater operating flexibility. (Rolls-Royce Limited., 1996). Principles of operation During operation the rotor is turned at high speeds by the turbine which makes sure that air is constantly being inducted into the compressor, which then is accelerated by the rotating blades and swept rearwards into the adjacent row of stator vanes. The pressure increase results kinetic energy received by the air by the rotor vane, which is then decelerated (diffused) by the stators vanes turning the kinetic energy into pressure. (Rolls-Royce Limited., 1996). Combustion Chamber The combustion chamber has the task of burning large quantities of fuel supplied through the fuel spray nozzles, with large volumes of air supplied by the compressor and releasing heat in a controlled process that the air is expanded and accelerated to give a smooth stream of uniformly heated gas at all conditions required by the turbine. The amount of fuel added will depend on the temperature rise required although the maximum temperature is limited by the materials that make the turbine blades and nozzles. (Rolls-Royce Limited, 1996) The combustion process The air arriving from the compressor is travelling at speeds up to 500 feet per second, which if entered the chamber would put out the flame due to the airs high velocity, so therefore the air must be decelerated. The air is diffused so the velocity is reduced also giving the added benefit of increasing the pressure. (Rolls-Royce Limited., 1996). IIn normal operation the overall air/fuel ration can vary between 45:1 and 130:1, however kerosine will only burn efficiently at, or close to, a ratio of 15:1, so the fuel must be burned with only part of the air entering the chamber, in what is called the primary combustion zone. This is achieved by means of a flame tube that has various devices for metering the airflow distribution along the chamber. (Rolls-Royce Limited., 1996). As shown in Figure 4, 20% of the air mass flow enters at the snout of the chamber, immediately downstream are a perforated flame and swirl vanes, the swirling air induces a flow upstream of the centre of the flame tube and promotes desired re-circulation. (Rolls-Royce Limited., 1996). Through the wall of the flame tube body, next to the combustion zone, are a number of secondary holes were a further 20% of the main flow of air passes into the primary zone. The air from the swirl vanes and that from the secondary air holes interacts and creates a region of low velocity recirculation, this take the form of a toroidal vortex, very similar to a smoke ring, this helps stabilise and anchor the flame the flame. (Rolls-Royce Limited., 1996). The temperature of the gases after combustion is around 1800 to 2000 °C, which is far too hot for entry to the nozzle guide vanes of the turbine. As only 40% of the total airflow is used in the combustion process, so the 60% is left to help cool the air, which is introduced progressively into the flame tube. Approximately a third of this is used to lower the gas temperature in the dilution zone before it enters the turbine, whilst the remainder of the air is used for cooling the walls of the flame tube. This is achieved by a film of cooling air flowing along the inside surface of the flame tube, insulating it from the hot combustion gases. (Rolls-Royce Limited., 1996). Types of combustion chambers There are three main types of combustion chambers used in gas turbine engines; these are multiple chambers, turbo-annular chambers and annular chamber. Multiple combustion chambers This type of Combustion chamber is used on centrifugal compressor engines and primitive axial flow engines. The chambers are disposed around the engine and compressor delivery air is directed by duct to pass into the individual chambers. Each chamber has an internal flame tube around which there is an air casing, the air passes through the flame tube snout and also between the tube and the outer casing as earlier described. All the flame tubes are all interconnected which allows them to operate at the same pressure and also allows combustion to propagate around the flame tubes during engine starting. (Rolls-Royce Limited., 1996). Tubo-annular combustion chamber The tubo-annular combustion chamber bridges the evolutionary gap between the multiple and annular types. A number of flame tubes inside a common air casing. (Rolls-Royce Limited., 1996). Annular combustion chamber This type of combustion chamber consists of a single flame tube in a completely annular form, which is contained in an inner and outer casing. The main advantage of the annular system is that for the same power output, the length of the chamber is 25% shorter than the tubo-annular system for the same diameter, saving weigh and production costs. . (Rolls-Royce Limited., 1996). Combustion chamber performance A combustion chamber must be capable of allowing fuel to burn efficiently over a wide range of operating conditions without incurring large pressure losses. Also if flame extinction occurs, then it must be possible to relight. . (Rolls-Royce Limited., 1996). Turbines The turbine has the job of providing the power to drive the compressor and accessories and sin some engines shaft power for the propeller or rotor. This is done by extracting energy from the hot gases from the combustion system and expanding them to a lower pressure and temperature. The turbines are subjected to high stresses with the turbine tips speeds reaching over 1,500 feet per second with gas temperatures. Types of turbines Gas turbine manufacturers have concentrated on the axial flow turbine, although some manufacturers are building engines with a radial-inflow turbine. The radial-inflow turbine has the advantages of being rugged, simples and relatively inexpensive and easy to manufacture compared to the axial flow turbine. On this type of turbine, inlet gas flows through the peripheral nozzles to enter the wheel passages in an inward radial direction. The speeding gas exerts a force on the wheel blades and exhausts the air in a radial direction to the atmosphere. These turbine wheels, used for small engines, are well suited for a lower range of specific speeds and work at relatively high effieciency. Micro turbines in industry In this section I will discuss and analyse the role of micro turbines in industry within aviation and out of aviation. Micro turbines can be used to produce electricity as well as power some ships. WREN ENGINES In this section I will be analysing the company of WREN, I will include what they do, their history and the current situation. I will note that the workers are enthusiast and work at a minimal wage to keep the company in business. WREN turbo prop In this section I will analyse the turboprop that will be tested in more detail. I will go through each component in a fair amount of detail, I will go through the manufacture process in some detail, and analyse the materials that are used. Wren turbo jet Here I will do in the same format as the turboprop but with a diary of our engine build: here is some rough notes I have made of the engine build# 26/10/09 Did our Risk assessment with Chris brier, told info on all aspect. Got on to the engine build, went smoothly until step 11 when inserting the shaft into the middle we dislocated bearings due failing to follow a step properly. We immediately called Chris brier to help us with our issue; he showed us how to replace the ball bearings into place. We then progressed onto the next step, at this point we saw etchings on the shaft and the rear turbine which we asked why they we like so We learnt that they were there for mass balancing, as an imbalance in weight would cause the shaft to distort. Balancing is done on each individual shaft by the manufacturer by a machine. Another aspect of the is the inefficiency of the compressor Compared to lager jet engines the gap between the edge of the compressor blades and outer skin is comparatively large therefore not all of the compressed air is used for the production of thrust, some leaks behind the compressor Step 16- when fitting turbine shrouds the turbine rests on a rim and not on turbines. Step 17- aligning case front, case front has been checked and aligned to the best of our abilities. Step 21- chamber stand-offs successfully crimped Step 22- comb chamber fixed in place, gas and oil tube is place and 3 stand-offs screwed in We found that the gas tube didnt fit because of misaligned lubrication pipe. So backtrack in progress was required to re-configure this step. In the process of correcting the combust chamber bearings in the same place fell apart, so were back to the same stage again Analysis This section I will analyse the results in detail evaluation Evaluate the whole process conclusion AppendiCise Apendix A Multi-flight risk assessment form Rolls Royce PLC. (1996a). The Jet Engine (5th Edition ed.). Birmingham: Renault Printing Co Ltd.

The Moral Maturation of Huckelberry Finn Essays -- English Literature

The Moral Maturation of Huckelberry Finn A novel structured on the theme of morality, the Adventures of Huckleberry Finn by Mark Twain focuses on Huck Finn’s multifaceted growing up process. Huck, through his escapades and misfortunes is obliged to endure the agonizing process from childhood to adulthood where he attains self-knowledge and discovers his own identity. Throughout the journey down the Mississippi River, Jim, Ms. Watson’s runaway slave, accompanies Huck, and is later joined by two con men. It is during this journey that a great moral crisis in Huck’s life occurs where he must make a painful decision as to whether he is going to give Jim up to the slave hunters or notify Ms. Watson about Jim’s whereabouts and assist him to remain a free man. This is the turning point in his character where through deep introspection, he learned to think and reason morally for himself. He comes to his own conclusions, unaffected by the accepted, and often hypocritical, perceptions of Southern culture. Huck also deciphers the truth in the face of lies held by the antagonistic society with its evil nature. From the very introduction of Huckleberry Finn in the Adventures of Tom Sawyer, Huck was known for his mastery of playing tricks on those gullible to his antics. In this novel, he played two tricks on Jim, enough to never make him do such a thing again. The first time as a joke, Huck puts a dead rattlesnake near Jim's sleeping place, and its mate comes and bites Jim. He learned for his own sake never to do that because it could have been him bitten by the snake. However, the second prank Huck pulls on Jim unbeknownst to him does not seem to be as funny as he thought it would be when he pretended that the whole fog incident was a figment of Jim’s imagination. Jim was hurt by Huck and calls him trash, the exact turning point of Huck’s morality; he even had the decency to apologize, showing acceptance to a black man. As I quote from pages 83-84 "What do dey stan' for? I'se gwyne to tell you. When I got all wore out wid work, en wid de callin' for you, en went to sleep, my heart wuz mos' broke bekase you wuz los', en I didn' k'yer no' mo' what become er me en de raf'. En when I wake up en fine you back agin, all safe en soun', de tears come, en I could a got down on my knees en kiss yo' foot, I's so thankful. En all you wuz thinkin' 'bout wuz how you could ma... .... Although Jim is a slave, Huck has already learned to recognize Jim as a real human being with emotions and deep consideration for his family. Because of these conclusions, he will do anything to fight for his friend’s rightful freedom. By the middle of the novel, anyone could believe that Huck Finn learned a great lesson of equality and made a complete 360 in becoming a new person. However, this is not so because from the time that Tom Sawyer, Huck’s friend from St. Petersburg, returns to the picture, Huck goes back to his indecent ways and disregards Jim as what he once believed him to be, an equal. They both toy around with Jim as they plan his escape from the Phelps. In conclusion, his hard work to fight against the hypocritical ideals of society at the time came right back and sucked him into their beliefs, all to impress his friend. Once he comes back to living in their society, he would no longer feel like he would have a say in his way of life and ideals especially the fact that Aunt Sally was going to civilize him. This idea of being captivated and made to be civilized does not suit Huck, he plans to run away to the west to escape all that burdens him in this society.

Business Essay

Many companies, especially SMEs, have a management that leaves much to say in its management, neglecting many aspects that cannot be ignored again before the commitment to ensuring a productive performance, which may lead to the expected results obtained and properly established in its objectives and mission. When you venture into them is detected organizational misbehaviour manifested in a climate that leaves a lot to say and where the internal working environment is polluted with many flaws that affect damage. Hence, the need to go into assessing what the reality of the work environment, how it works, its impact and that is being done. Management must always be vigilant in ensuring good organizational behaviour, a climate that is favourable and security to the company under its charge of its operation, achievements, successful participation in the markets in which it operates. Thus, one cannot neglect how he handles the internal working environment, be aware of the proper use of their resources, how the technology is used, the operation of production systems, quality management, performance manuals, discipline and commitment to work, ergonomics, leadership, communication to name a few aspects. Types of Organisational Misbehaviour About this reality that is much in companies in the country, in industries, where many companies have neither guarantee a good working environment, significantly affecting its functionality, operability, and forces neglected to tend to avoid negative effects. Comment, no doubt, that this situation creates a lot of stress and anxiety, and it affects not only professionally but also in other areas of our life. The ideal thing is to change as soon as possible to run out of that kind of environment. Although there are times when you prefer to lose hold that simply do not work because we can afford it (but please, get out when you can, do not have to spend at least eight hours a day as well!). If that is the case here and you really cannot leave work, and then at least try to make it more bearable. Here are some things you can do: 1. Stay away from negative people who is always complaining or criticizing, you’re calmer. Of course there are times you cannot, but try your best because these people are typical emotional vampires that leave you exhausted. 2. Creating a custom workstation and relaxing (with photos, flowers, etc). So you will feel at ease at least in that space. You can also listen to music or isolate a bit with headphones. 3. Doing good work. I’ve said before when you work thoroughly and do things the best you can feel very good. 4. Keeping busy. If we do our job we will, because if dissatisfaction joins apathy, boredom and apathy, not get very far. 5. Think if anything you can do to improve the situation. Lest we’re complaining and basically can do something about it. Maybe if we strive to meet our fellow some would be more relaxed atmosphere and friendly, for example. So if there is no solution at least make it bearable and acceptable as possible. What do you think? Conclusion It is up to everyone to watch in all matters in which we interact, determine how this affects our character, behaviour and not let anything affect us, we are able to make the right decisions to avoid being caught us in anything we atmospheres benefit, we simply do not allow the search for solutions and that suits us.

Free Essays on Affirmitive Action

Affirmative Action is absurd. If a white male, who was five feet tall, tried out for the Los Angeles Lakers, would the government have the right to tell the team’s owner that he had to sign the player, simply because traditionally there has been a higher percentage of blacks than whites in the game of basketball? Of course not, that would be totally wrong. Playing on a professional sports team is based on talent and merit, and thus it should be with every other profession. In fact, according to the NIF booklet on this topic, the majority of affirmative action policies do not target the lower-class minorities that actually need help breaking into the workforce. Instead, middle-class minorities and women, who have had relatively the same educational opportunities as white middle-class males, are given preference. While the government should make sure that discriminatory hiring practices are not used, it should not give an unfair advantage to equally qualified students or applica nts simply because of their race or gender. The only viable way to create a truly equitable society is to expand programs that give assistance to the economically disadvantaged. Though these measures, the lower-class, which has traditionally been composed of a large percentage of minorities, will be able to compete fairly with white males for educational and employment opportunities. Dr. Martin Luther King, Jr., said that people should be judged â€Å"not by the color of their skin, but by the content of their character†. This statement is true in every aspect of American society. Morally, discrimination is wrong whatever the color of a person’s skin. No matter what advocates of affirmative action say, it does discriminate against certain people. Usually those people are wealthy white males; however, lower-class white males are also discriminated against under the guise of affirmative action. People should only be judged for employment or educational opportun... Free Essays on Affirmitive Action Free Essays on Affirmitive Action Affirmative Action is absurd. If a white male, who was five feet tall, tried out for the Los Angeles Lakers, would the government have the right to tell the team’s owner that he had to sign the player, simply because traditionally there has been a higher percentage of blacks than whites in the game of basketball? Of course not, that would be totally wrong. Playing on a professional sports team is based on talent and merit, and thus it should be with every other profession. In fact, according to the NIF booklet on this topic, the majority of affirmative action policies do not target the lower-class minorities that actually need help breaking into the workforce. Instead, middle-class minorities and women, who have had relatively the same educational opportunities as white middle-class males, are given preference. While the government should make sure that discriminatory hiring practices are not used, it should not give an unfair advantage to equally qualified students or applica nts simply because of their race or gender. The only viable way to create a truly equitable society is to expand programs that give assistance to the economically disadvantaged. Though these measures, the lower-class, which has traditionally been composed of a large percentage of minorities, will be able to compete fairly with white males for educational and employment opportunities. Dr. Martin Luther King, Jr., said that people should be judged â€Å"not by the color of their skin, but by the content of their character†. This statement is true in every aspect of American society. Morally, discrimination is wrong whatever the color of a person’s skin. No matter what advocates of affirmative action say, it does discriminate against certain people. Usually those people are wealthy white males; however, lower-class white males are also discriminated against under the guise of affirmative action. People should only be judged for employment or educational opportun...

THE IMPACT OF HOSTILE TAKEOVER IN JAPAN

THE IMPACT OF HOSTILE TAKEOVER IN JAPAN THE IMPACT OF HOSTILE TAKEOVER IN JAPANIntroductionAccording to corporate finance theorists, the objective of the firm should be to maximize value or wealth. This means for stockholders to maximize stock prices. By focusing on maximizing stockholder wealth, the firm exposes itself to the risk that managers, who are hired to operate the firm for stockholders, may have their own objectives. This can lead to conflicts between both parties. Stockholders have the power to discipline and replace managers who do not attempt to maximize their wealth. For managers there are several techniques to protect themselves for these actions (Osano, 2001).In other words: stock price maximization is the most important goal of most corporations. Stockholders own the firm and elect the board of directors, who then appoint the management team. Management is supposed to operate in the best interests of the stockholders. However, it is known that because the stock of most large firms is widely held, the mana gers of large corporations have a great deal of autonomy.Epic Tap Takeover 2010This means that managers might pursue goals other than stock price maximization. Therefore managers run the risk of being removed from their jobs, either by the firm's board of directors or by outside forces.Hostile takeover is a process that occurs when management does not want the firm to be taken over. These are most likely to occur when a firm's stock is undervalued relative to its potential because of poor management. In a hostile takeover, the managers of the acquired firm are generally fired, and any who are able to stay on, lose the autonomy they had prior to the acquisition.A potential agency conflict arises whenever the manager of a firm owns less than a substantial percentage of the firm's common stock. In most large corporations, agency conflicts are...

Financial Markets & institutions Assignment Example | Topics and Well Written Essays - 500 words

Financial Markets & institutions - Assignment Example They have low interest rates in terms of a constant fixed rate or settled upon maturity and are short term. The Aljazira capital Document 2014 document covers issues that appertain to: calendar anomalies, the effect of valuation on the performance of a company in the market and technical pointers in a trending market among others. Some of the anomalies include the best performance of the index upon trading on the first day of the week with a strategy of selling the holdings on Sunday and avoiding to buy them on the same day. The other anomaly includes the monthly returns differentiated across that necessitates investing in a short-term gain before the Ramadhan period. Shadow banking is an interconnection of specific financial institutions that have no banking permits like Money markets and Special Purpose Entity Conduits (Brycce, 2000) meant to inspect and ensure secure funding from the savers to investors of finances. Shadow banks transform home mortgages into securities through mortgages being regarded as a pack of loans to back up a security sold by investors. On the other hand, Conventional banks raise funds through the depositors who have surplus and through lending to other individuals who have limited funds. Brycce, H. (2000). Financial and strategic management for non-profit organizations: a comprehensive reference to legal, financial, management, and operations rules and guidelines for non-profits. Jossey-Bass Publishers, 3rd Edition,

Cross Listing Literature review Example | Topics and Well Written Essays - 1250 words

Cross Listing - Literature review Example Cross Listing The researcher will take the help of the research work of previous research scholars in order to shed light on the topic. 1.2 Definition of Cross Listing Karolyi (2012) defined cross-listing or â€Å"dual-listing’ as the strategic measure taken by companies to list its equities in exchange of foreign countries and the process may or may not involve secondary or initial capital rising. The scholar has also pointed out that cross-listing involves customization or changing the disclosure measure, transparency, corporate governance requirement in accordance with nature of the business environment of the foreign country where equities are going to be listed. Jian et al. (2011) also pointed out that cross-listing is basically a strategic choice rather being a mere accounting trick performed by top level management of the firm to internationalize its business without involving any traditional international expansion policy such as merger & acquisition, exporting, licensing etc. In s uch context, Karolyi (2012) and Jian et al. (2011) agreed with the fact that cross-listing requires involvement of multiple capital market participants such as accountants, investment banks, custodian agency which undertakes clearance and settlement activities, strategic advisors etc. Hence it can be assumed that cross-listing is a lengthy and complex process. ... like getting access to a larger market, attracting cash rich investors, greater diversification of ownership base, opening door for liquid trading can influence a firm to go for cross listing. However, careful analysis of the research work of O’Connor (2009) shows that it is very difficult to assign one reason which might influence firms to go for cross listing. O’Connor (2009) has pointed out that nature disclosure in cross-sectional setting can even influence cross-listing decision. In such context, the study will shed light on empirical reasons behind cross listing with help of previous research work of research scholars. 1.3 Reasons for Cross Listing Cross-listing is one of the hotly debated topics among research scholars and identifying exact reason behind cross listing is a long debated issue among research scholars. Charitou et al. (2008) identified the fact that none of the research scholars have ever tried to understand the motivation behind cross- listing from managerial perspective. Charitou et al. (2008) argued that executives go for cross-listing in order to get higher equity based compensation. Hence, it can be assumed that listing equity of a firm in exchange of foreign markets is strategic decision which is taken by executives in order to fulfill the interest of shareholders. Listing equities in foreign exchange attracts foreign investors to invest money on the shares of the company and as a result of the investment of foreign investors, the firm gets able to provide better return to shareholders and subsequently board executives also get higher equity based compensation. Dodd (2013) pointed out that cross-listing helps firms to overcome the market segmentation, limitation of attracting investors and improvement of stock liquidity but these factors