Coal Seam Gas Coal Gas Essay - 1162 Words

Coal Seam Gas What is coal seam gas? Coal Seam Gas (CSG) is a natural methane gas found in coal seams made by coal forming under the earth for millions of years. Countries such as the United States and China have utilised it for energy needs. Methane lines the inside of the coal cracks, pores and micro-pores and is found in the open fractures (cleats) and seams. (1) CSG is also known as Coal bed methane (CBM) and Unconventional Gas. Unlike coal itself, the gas lacks hydrogen sulphide. It is extracted by drilling a steel encased hole into the coal seam known as fracking. The gas is released from the coal as water is pumped out, the water and gas are separated and the gas then compressed into a natural gas pipeline. Where is it found in Australia? The CSG industry in Australia is around 20 years old, with the first business construction of a well occurring in Queensland in the mid 1990s. Australia has substantial identified reserves of CSG occurring in coal basins in Queensland, New South Wales, Victoria, Western Australia, South Australia and Tasmania. (2) The biggest known basin being the Surat basin: which occupies 300,000 km2 of Southern Queensland and Northern New South Wales. (1) Fig 1.0 – The major basins in Australia that hold coal seam gas. (1) What is fracking? ‘Fracking’ (Hydraulic Fracturing) is the technique of mining that extracts oil or gas from the underground via wells drilled into the seam. (3) Steel pipes are then put into the newly drilled hole andShow MoreRelatedCoal Seam Gas2081 Words   |  9 PagesWHAT IS COAL SEAM GAS (CSG)? CSG is a naturally occurring methane gas which is known as Coal Bed Methane (CBM). It is a-by product of ancient plant matter that has formed over millions of years by the same natural processes which produce coal. Not long ago this gas was identified as a major problem in the underground coal mining industry due to it’s high flammability despite this, it is now recognised as a very profitable resource. The coal seams are generally filled with water and it is theRead MoreCoal Seam Gas853 Words   |  3 PagesCoal seam gas (CSG) is mostly composed of methane and is typically attached to coal underground. This gas is released when pressure on the coal seam is reduced by removing water from the seams (Queensland Government, 2014 ). In order to obtain the gas, wells are drilled into the coal seams, bringing water from the coal seams to the surface. This process reduces pressure and allows the gas to be released (Queensland Government, 2014 ). CSG is an important energy resource in Queensland and productionRead MoreCoal Seam Gas Exploration And Development1828 Words   |  8 PagesISSUE: Coal seam gas exploration and development is rapidly increasing within Australia (Woodman and Silver, 2013). This increase has sparked significant concern within the community about the potential environmental, social and economic impacts that could result, which could possibly put a standstill to CSG mining, costing the state millions of dollars in revenue (Jaques and Galloway, 2012). BACKGROUND Coal seam gas or CSG is a naturally occurring found in coal seam deposits. Australia hasRead MoreThe Exploration And Development Of Coal Seam Gas1092 Words   |  5 PagesThe exploration and development of coal seam gas (CSG) have important strategic significance. On one hand, it improves energy structure and increases energy resources. On the other hand, the CSG indirectly protects the global environment by using the clean energy. Although the CSG has so many benefits, CSG extraction is still an industry of high input, high risk and high technology needing under the current conditions. In order to reduce its potential risk, it is essential to operate the projectRead MoreHarmful Effects On The Environment And Surrounding Agricultural Lands Are The Negative Externality Effects Associated With Coal Seam Gas1691 Words   |  7 Pagessurrounding agricultural lands are the negative externality effects associated with coal-seam gas. This stems from problems such as the exhaustion and/or contamination of clean water resources. 1b) As seen from figure one, negative externality creates a social marginal cost that is substantially higher than the actual level of coal-seam gas mining (private marginal cost). It is evident that coal seam mining has an ‘un-priced’ cost, which is not included in the private marginal costRead MoreShould Farmers Forced The Gas Exploration On Their Lands?1134 Words   |  5 PagesShould Farmers be forced to Allow Coal Seam Gas Exploration on Their lands? Introduction Coal Seam Gas which is commonly referred to as CSG is a type of natural gas found in coal deposits. Over millions of years natural gas is formed from plant matter which when under pressure forms natural gas. Coal seam gas and natural gas are used in the same form and in the same way generally for cooking and heating whilst it is commonly used for industrial purposes and electrical generation. Australia’s largestRead MoreThe Effects Of Co2 On The Permeability Of Indian Bituminous Coal1521 Words   |  7 Pagesinjection on the permeability of Indian bituminous coal at different confining and injection pressure. The major approach of the journal is to clarify about when and how would the incensement of injection pressure have impact on the permeability of coalbed methane. As a final year Civil Engineering student, I found this journal is educational and inspiring. The research shows a comprehensive explanation of how pressure and stress of permeability of coal to sub-critical CO2 is tested. Summary In orderRead MoreFracking And Fracture Stimulation Techniques Essay1081 Words   |  5 PagesFracking in CSG mining is a process where a mixture of water, sand and additives are pumped under pressure into a coal seam to open up already existent cracks in the coal strata. Fracturing fluid is 97%-99% sand and water, with a small amount of commonly used biodegradable compounds to prevent bacterial growth and turn the fluid into a gel so it can be pumped more easily (What is coal seam gas? - NSW Resources and Energy, 2016). The CSIRO suggests the components of fracturing fluid are: guar gum, sodiumRead MoreEnvironmental Awareness And Sustainability Project3152 Words   |  13 PagesFood - Coal Seam Gas or Farming Name: Abdullah-AL Junayed Chowdhury S186646 2 1. Introduction As the world’s population is increasing, the demand of the energy usage is also increasing and the direct solution is to find and implement newer energy sources. As a consequence, sometimes farming lands are exploited Mining companies are investigating and discovering different types of energy sources to meet the energy demand. One option for a different kind of energy supply is coal seam gas. Coal seam gasRead MoreFossil Fuel And Fossil Fuels1485 Words   |  6 Pagesfossil fuels were formed. Fossil fuels were converted into coal, oil, and natural gas (U.S Department of Energy, 2013). Fossil fuels are considered to be non-renewable energy. Fossil Fuels are considered to be this because they are a one-time energy source. Since it takes millions of years for fossil fuels to form, once they are all gone they are basically gone forever (Alterative Energy, 2015). One type of fossil fuel is coal. Coal is a hard, black colored, rick-like substance that is made up

Personal Life and William Hazlitt Free Essays

Many people say will say that â€Å"money cannot buy happiness. † Nineteenth-century author, William Hazlitt, wrote â€Å"On The Want of Money† to put forward his belief that a life without money is a life full of misery. Hazlitt uses negative diction, parallelism, and specific syntax to show that a person could not lead a happy life without money. We will write a custom essay sample on Personal Life and William Hazlitt or any similar topic only for you Order Now In his writing, Hazlitt uses negative diction to discuss the importance of money in one’s life.. Hazlitt uses words like â€Å"crabbed† â€Å"morose† and â€Å"querulous† to show the discontent one would feel without money. With his gloomy word choice, Hazlitt establishes a negative tone and gives his audience a clear idea of what a miserable life one would have without money. Doing this, he suggests the idea that the poor have no control of their lives because they don’t have the money to change the way their miserable lives. Equally important, Hazlitt uses parallelism to stress the importance of money in a happy life and show the dreadful instances a person in poverty can go through. He states that living without money, â€Å"it is to live out of the world, or to be despised if you come into it†¦it is to be scrutinized by strangers, and neglected by friends†¦Ã¢â‚¬  By doing this, Hazlitt explains how a person without money cannot possibly be happy, because he or she will be disliked by everyone around them. The dark mood set by all of the examples Hazlitt gives portrays what Hazlitt thinks a life without money would be: difficult, lonely and overall unhappy Furthermore, Hazlitt uses specific syntax to prove his point that one without money cannot possibly be happy. He uses one long sentence that stretches from lines 2 to 47 to put an emphasis on the fact that people without money lead a life filled with misery. Hazlitt’s use of the lengthy sentence represent all of the never-ending obstacles one without money faces. Hazlitt’s purpose in doing this is to accent his idea that a person without money does not lead a happy life. By using one long sentence instead of many shorter ones, Hazlitt makes the reader feel hopeless and as if they were drowning in their distress Overall, Hazlitt uses negative diction, parallelism and syntax to show his belief that money is what gives you happiness in life. By stating so many examples and employing his strategies, Hazlitt makes reader feel deprived of their hope of being happy in this world without money, which is exactly what the author’s purpose was. To be without money is to be â€Å"†¦dissatisfied with every one, but most so with yourself.. † How to cite Personal Life and William Hazlitt, Essay examples

Blood Transfusion free essay sample

The purpose of this module is to teach the clinical RN the basics of blood, how to administer a blood/blood component transfusion safely, and the hazards of transfusion related to blood administration. This module is indicated for teaching purposes based on the fact that the NHS requires at least quarterly review of blood usage, oversight of blood transfusion practices, documentation of blood transfusion errors, and evidence of corrective actions taken. Results of one study found that individuals lack of knowledge and training, along with inadequate policies and procedures, were the key elements in more than 350 blood transfusion-associated deaths (Bower amp; Craig, 1997) What is a Blood Transfusion? A blood transfusion is a safe, common procedure in which blood is given to you through an intravenous (IV) line in one of your blood vessels. Blood is transfused either as whole blood (with all its parts) or, more often, as individual parts. The individual parts include red blood cells, platelets, clotting factors, and plasma. Each year, almost 5 million Americans amp; British need a blood transfusion. While most blood transfusions go well, mild complications can occur and serious problems may develop. The Individual Parts Defined Red Blood Cells -the most numerous blood cell, about 5,000,000 per microliter. Red blood cells make up about 40% of our total blood volume, a measure called the hematocrit. Their color is caused by hemoglobin, which accounts for nearly all of the red cell volume. Hemoglobin is the critical protein that transports oxygen from our lungs to the tissues. Red blood cells are normally shaped as round, biconcave discs. Red Blood Cells Image obtained from http://embryology. med. unsw. edu. au/Notes/heart20. htm) Platelets -the smallest of the three major types of blood cells, are only about 20% of the diameter of red blood cells and the normal platelet count is ~150,000-350,000 per microliter of blood. The principal function of platelets is to prevent bleeding. Platelets (Image obtained from http://ouhsc. edu/platelets/Platelets/platelets%20intro. html) Clotting Factors -proteins in the blood that control bleeding. Plasma -a pale yellow fluid that consists of about 92% water and 8% other substances, such as proteins, ions, nutrients, gases, and waste products. It is a colloidal solution which is a liquid containing suspended substances that do not settle out of solution. Most of the suspended substances are plasma proteins, which include albumins, globulins, and fibrinogen. Plasma volume remains relatively constant. Normally, water intake through the digestive tract closely matches water loss through the kidneys, lungs, digestive tract, and skin. Plasma (which is in the yellow) Image obtained from : http://www. mhhe. com/biosci/esp/2001_saladin/folder_structure/tr/m1/s2/ Brief History of Blood Transfusions 665 The first Blood transfusions of record take place. Animal experiments conducted by Richard Lower, an Oxford physician started as dog-to-dog experiments and proceeded to animal-to-human over the next two years. Dogs were kept alive by the transfusion of Blood from other dogs. 1795 In Philadelphia an American physician, Philip Syng Physick, performed the first known human Blood transfusion, although it was not published. 1818 James Blundell, a British obstetrician, performed the first successful transfusion of human Blood to a patient for the treatment of postpartum hemorrhage. Therefore, a group A individual can receive blood only from individuals of groups A or O (with A being preferable), and can donate blood to individuals with type A or AB. * Group B – has only the B antigen on red cells (and A antibody in the plasma). Therefore, a group B individual can receive blood only from individuals of groups B or O (with B being preferable), and can donate blood to individuals with type B or AB. * Group AB – has both A and B antigens on red cells (but neither A nor B antibody in the plasma). Therefore, an individual with type AB blood can receive blood from any group (with AB being preferable), but can donate blood only to another type AB individual. * Group O – has neither A nor B antigens on red cells (but both A and B antibody are in the plasma). Therefore, a group O individual can receive blood only from a group O individual, but can donate blood to individuals of any ABO blood group (i. e. A, B, O or AB). If anyone needs a blood transfusion in an extremely dire emergency, and if the time taken to process the recipients blood would cause a detrimental delay, O Negative blood can be issued. Blood Administration * Obtain Signed Consent for the administration of blood products * Check the Drs Order * Determine Clients Allergies and previous transfusion reactions (this can be assessed by simply asking the client if they have had a transfusion before and how they tolerated it) * Obtain baseline vitals and then per hospital/institution policy * Utilize #18 gauge needle * Check Crossmatch Record With 2 Nurses: * ABO- Group * RH Type * Clients Name, Date of Birth and Medical Number * Expiration Date * Administer Immediately- do not store the blood or leave it. If for any reason the blood/blood components are not to be hung, blood may be sent back to Blood Bank (check hospital policy and procedure as most institutions require that blood/blood products must be administered within 30 minutes upon receipt) * Do not warm the blood unless there is a risk of hypothermic response- Then Only by specific blood warming equipment * Never add any medications to blood products * Infuse each unit over 3-4 hours but no longer than 4 hours   Transfusion Reactions Occurs in the first 10-15 minutes or first 50 cc of Blood Reactions can be ALLERGIC, FEBRILE, or HEMOLYTIC (Utilize the Acronym AFH for memorization purposes)   ALLERGIC Signs and Symptoms include the following: * Facial flushing * Hives * Rash FEBRILE Signs and Symptoms include the following: * Fever * Chills * Anxiety * Headache * Tachycardia * Tachypnea HEMOLYTIC Signs and Symptoms include the following: * v Blood Pressure * Tachypnea * Fever * Chills * Apprehension * Headache * Tachycardia * Chest Pain or Lower Back Pain Recent Facts amp; Statistics Regarding Transfusions * Hemolytic transfusion reactions occur in 1 per 40,000 transfused units of packed RBCs. Nonhemolytic febrile reactions and minor allergic reactions are the most common transfusion reactions, each occurring in 3-4% of all transfusions. Nonhemolytic febrile reactions and extravascular hemolysis are observed more commonly in patients who have developed antibodies from prior transfusions. * Anaphylactic reactions occur in 1 per 20,000 transfused units. * Due to improved preventative measures, the incidence of GVH disease is less than 0. 15% * Transfusion-related acute lung injury complicates 0. 1-0. 2% of all transfusions. Risk of transfusion-related hepatitis B is 1 per 50,000 units transfused. Risk for hepatitis C is 1 per 3000-4000 units transfused. * Risk of transfusion-related HIV infection is 1 per 150,000 units transfused. (Kardon, 2009) What do you do if you suspect a Transfusion Reaction? STOP the transfusion immediately * Maintain the line with Normal Saline VERIFY patient identification * Hospital armband, Typenex band, and blood bag must be identical NOTIFY the patients physician STAT * Treat the signs per Drs order and Monitor Vitals * If requested by the physician, initiate transfusion reaction work up NOTIFY Blood Bank STAT Check the Policies/Procedures of the facility at which you are employed * You may have to bag the blood component, IV tubing, filters and all labels in a biohazard bag and it may have to be submitted/returned back to the laboratory as further testing of the components may be clinically warranted (It is a standard policy at Maricopa Medical Center that those components are submitted back to the lab as routine Microbiology cultures are performed to ensure the sterility of the blood) * Additional forms may be required to complete (i. . Transfusion Reaction Forms) * Further samples may be collected from the patient (i. e. Urine, blood samples, etc.

Automatic Railway Level Crossing free essay sample

Abstract: In the rapidly flourishing country like ours, accidents in the unmanned level crossings are increasing day by day. No fruitful steps have been taken so far in these areas. The objective of our project is to provide an automatic railway gate at a level-crossing replacing the gates operated by the gatekeeper. It deals with two things. Firstly, it deals with the reduction of time for which the gate is being kept closed. And secondly, it provides safety to the road users by reducing the accidents. By employing the automatic railway gate control at the level crossing the arrival of the train is detected by the sensors placed near to the gate and transmits the information to the gate controller via wired or wireless. Hence, the time for which it is closed is less compared to the manually operated gates. The operation is automatic i. e. , error due to manual operation is prevented. We will write a custom essay sample on Automatic Railway Level Crossing or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page By employing the automatic railway gate control at the level crossing the arrival of train is detected by the sensor placed on either side of the gate at about 3km from the level crossing. Hence, the time for which it is closed is less compared to the manually operated gates and also reduces the human labour. This type of gates can be employed in an unmanned level crossing where the chances of accidents are higher and reliable operation is required. Since, the operation is automatic error due to manual operation will be prevented. Once the arrival of the train is sensed, the sensed signal is sent to the microcontroller via, wired or wireless transmission and it checks for possible presence of vehicle between the gates. Subsequently, buzzer indication and light signals on either side are provided to the road users indicating the closure of gates. Once, no vehicle is sensed in between the gate the motor is activated and the gates are closed. But, for the worst case if any obstacle is sensed it is indicated to the train driver by signals (RED) placed at about 1km, so as to bring it to halt well before the level crossing. When no obstacle is sensed GREEN light is indicated, and the train is to free to move. The departure of the train is detected by sensors placed at about 1km from the ate. The signal about the departure is sent to the microcontroller, which in turn operates the motor in reverse way and opens the gate. Thus, the time for which the gate is closed is less compared to the manually operated gates. Also reliability is high as it is not subjected to manual errors. Components : IR sensors or Vibration sensors, Microcontroller, L293D(driver IC), Stepper motor, Wireless Transmitter and Receiver, power supply. HARDWARE IMPLEMENTATION Micro Controller Totally 40-pin DIP package manufactured with CMOS Technology. L293D (motor driver IC) Racially L293D 16DIP /ULN 2003 IC is used to drive the stepper motor. STEPPER MOTOR This is used to open and close the gates automatically when it is rotated clock wise or anticlockwise direction. Stepper motor requires 500m amps current, so use the L293D drivers to drive the stepper motor. SOFTWARE IMPLEMENTATION Keil By 1. B. BHARATH KUMAR REDDY – 113004045 2. P SAMBASIVA RAO – 113004161 3. T. RANGA VINOD KUMAR 113004207 4. T. SIVA NARAYANA REDDY 113004205

Vulnerable Computer Networks essays

Vulnerable Computer Networks essays As more and more people use Internet for pleasure, more and more criminals use it to break into remote computers to steal information, plant viruses, or simply change user names and passwords. In any case, many online computer networks are vulnerable to outside hacker attacks. This can target home computers, as well as corporate networks (Koerner 20). Most of the time intrusions occur because security is low and not well maintained due to incompetent security administrators (Koerner 54). PC security is never 100 percent effective (Dugdale 292). As the Internet gets faster and faster, network administrators want their networks to be as fast as possible so access to them is not sluggish. Actually, some security software can slow down a network as much as 20 percent (Koerner 20 Webs bad week). Administrators want the network or Internet site up as soon as possible. Koerner states that most of the time security is in the back of the administrators mind (20). You cant just buy a product and think you are magically secure, stated Bruce Schneier, founder and chief technology officer of Counterpane Internet Security (Koerner 20 Webs bad week). Author of Mastering Network Security, Chris Benton, says, Its easier for an administrator to throw software at the problem rather than take time to come up to speed (Koerner 54 cybervandals). It seems like most security administrators are unable to solve problems themselves. They resort to the software that others program to keep their systems up to date. In reality, it may be counter effective since administrators do not exactly know what holes that the software may have in them. Intrusion detection of hackers is one thing, but when attacks that cripple networks are coordinated to make it look like ordinary people are using a website legitimately are known as Denial of Service attacks, are another. A hacker can break into various low ...

Assignment for Business Integration Example | Topics and Well Written Essays - 2000 words

For Business Integration - Assignment Example If the employee productivity is at its highest level then the company would be beneficial after all. So every company should take care that every employee of the company is highly motivated so that they can provide their full effort. If an employee becomes demoralized then he can’t provide his 100% effort for the company as well as the employee can leave the organization, which is in turn the loss of the organization itself. Some researchers have stated some theories, following these principles the company management can make sure that the employees are well motivated. This report is an attempt to analyze the Hertzberg’s factor theories which influence the employees’ motivation positively and thereby suggesting some ways to improving the performance of the team members. Hertzberg’s Factor Theories Among the motivational theories presented by certain researchers the factor theories of Professor Frederick Herzberg is an important one. The motivation- hygiene theory of Herzberg was presented in three volumes. In the year 1959 it was first stated by Him. After that the theory was elaborated by him and at present the theory is applied by many organizations. The research about the motivation to work had two hypotheses. These are as follows The factors which are causing positive attitudes among the employees which affected their performance and the factors which are causing negative attitudes among the employees are different. The factors which affect the performance of the employees or personally differs for the job events which are extended over long term than the job events which are of short duration. From the research outcomes the factors which leading to job satisfaction and the factors which leading to job dissatisfaction are specified and thus it became the part of the theory. There are five factors of job satisfaction recognized by the researcher. These are the work of the employee (Is it challenging or not), the verbal recognition , the responsibility in the organization, the achievement and the promotion of the employee in the organization. If these five things are present in the organization then the basic needs of the employee will be satisfied and the employee would be able to produce an improved performance. On the other hand there are also certain factors which lead to the job dissatisfaction of the employees. These factors are the policy of the company and the practice of the administration, the working conditions, the interpersonal relations between the employees and especially with the supervisor, the technical quality of the supervisor, job security and remuneration. These factors are represented by Herzberg as the hygiene factors. Herzberg argued that when these hygiene factors are appropriately provided by the company management then the dissatisfaction of the employees is removed and performance of the employee get improved to a certain point. But providing only these factors don’t ensure the performance to the high level which is possible potentially. Regarding the human motivation Herzberg said that human being has two kinds of needs. One is the basic needs (life security, hunger, pain etc) and the other need is of psychological growth. Herzberg emphasized that there are need of motivators in the company as the employees who are the hygiene seekers are motivated only for a short term. They need external

Main factors of seismic vulnerability of buildings and how the Essay

Main factors of seismic vulnerability of buildings and how the assessment of the vulnerability of buildings could be used for as - Essay Example 1.3. Large Settlements in Seismic Areas There is a large population that lives in seismic vulnerable areas and the buildings there are more prone to earthquakes because of aging and lack of maintenance. 1.4. Non-Engineered Constructions Non-engineered construction is very much prone to seismic vulnerability as the buildings will not have good engineering techniques that would save them from seismic waves. 2. Seismic Vulnerability Assessment can be used for assessing the seismic impacts in an urban area. Urban area consists mainly of those buildings that are vulnerable to earthquakes and hence are damaged or poorly maintained. For example, a lot of urban area damaged â€Å"occurred in vulnerable houses in every earthquake experienced by Italy in the post-war period, and particularly during the Friuli and the Irpinia earthquakes† (Cozzi, Menoni, Pergalani & Petrini 2003:4). The vulnerability assessment of seismic activity in urban areas and the application of proper solutions to counter these damaging activities can be helpful in reducing the causalities and destruction (Agrawal & Chourasia 2008) and economic loss caused by future earthquakes, according to Vicente et al. (2010).