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Energy Storage Systems for Advanced Power Applications

Abstract The following assignment contains the topic of power transmission systems for offshore wind farms. The three main types of transmission discussed is Line Commutated Converters, Voltage Sourced Converters and High Voltage Alternating Current. Introduction Electrical Energy Storage technology is proficient in coping with key characteristics of electricity. One trait is its ability to hourly vary in demand and price. Soon electrical energy storage will become essential in bringing relevant markets together to use more renewable energy, to accomplish low CO2 levels for Smart Grids Electrical Energy Storage has three main objectives. These are: – Electrical Energy Storage lowers electricity costs by harvesting electricity attained during off-peak times. To improve reliability of power supplies. Electrical Energy Storage consumers during network failures. For example, during natural disasters. To maintain and improve power quality, frequency and voltage. In general, the definition of Smart Grid is to modernise the electricity grid. It involves all aspects related to the electrical system between any point, from generation to consumption. Now that Smart grid technology has been implemented the grid has become more flexible and interactive and gives immediate feedback. The Smart Grid will provide information concerning the price of electricity and the state the power system can be exchanged between electricity production and consumption to realise a more efficient and reliable power supply Electrical Energy storage is significant in the development of Smart Grid. Types of Energy Storage and Features Electrical Energy Storage Classification To classify electrical energy storage systems the sort of energy used must be considered. In figure one below the storage technologies are categorised into; mechanical, electromechanical, chemical, electrical and thermal energy storage systems. Secondary energy carriers such as, hydrogen and synthetic natural gas are operated to store electrical energy via electrolysis of water to create hydrogen and methane. Fuel cells oxidises hydrogen or methane to produce electricity. The combination of the electrolysis fuel cell procedure is an electrochemical energy storage system. However, both gases are multi-purpose energy carriers. For example, the electricity can be produced in a gas or steam turbine. Thus, they are categorised as chemical energy storage systems. Thermal energy storage systems are also considered. Most thermal energy systems are not the direct input to storage systems. However, using the help of thermal energy storage the energy from renewable energy sources can be strengthened, which allows electricity to be produced on demand. Hot molten salts in concentrated solar power plants and the storage of heat in compressed air plants using an adiabatic process to achieve efficiency is an example. Mechanical Storage Systems Pumped hydroelectric, compressed air energy storage and flywheel energy storage are the most popular mechanical storage systems used. Pumped Hydro Storage Pumped hydro storage technology uses to reservoirs at different altitudes. At off peak times water from the bottom reservoir is pumped to the top reservoir. This is can be referred to as charging. Once electrical energy is need water from the top reservoir flows back down to the bottom reservoir, which in turn powers turbines positioned between the top and bottom reservoir. The turbines are connected to generators to then produce electricity. This is known as discharging. Pumped hydro relies on environmental locations. For high and low reservoirs dams, flooded mine shafts, other underground cavities and the open sea are suitable locations to construct a pumped hydro energy system plant. Currently in the UK there is one pumped hydro station located in Dinorwg in North Wales. This is the power station depicted in figure two below. Discharge time periods can last up to several hours to a few days. This depends on the size of the plant. They are seventy to eighty-five per cent efficient. Some advantages of pumped hydro technology is the long lifetime and practicability unlimited cycle stability of the installation. Disadvantages are its dependency on topographical conditions and large land area used. Compressed Air Energy Storage Compressed air technology is used as a storage means due to its obtainability. Air is compressed and kept in underground structures or above ground systems of vessels or pipes. Natural gas is then mixed with the compressed air and burned, which is expanded in specialised gas turbines. Usual underground storage system locations are caverns, aquifers or abandoned mines. This process is illustrated in figure three below. Heat cannot be released during compression dissipation as it will cool while in storage. The air needs to be reheated before expansion in the turbine. This is called Diabatic Compressed Air Energy Storage. This method gives low round trip efficiencies of less than fifty per cent. This system is well established with plants having high reliability and are proficient at starting without extraneous power. The main advantages of compressed air energy storage are its large capacity. The disadvantages the technology develops is low round trip efficiency and location restriction. Flywheel Energy Storage Flywheel energy storage generates energy using a rotating cylinder and stores its energy in an accelerated rotor. The flywheel is made up of a rotating body/cylinder within a compartment. There are also bearing and a transmission device. The electrical energy is generated by the flywheel by keeping the rotation of the body at a constant speed. The higher the speed the more energy stored. To function the flywheel is electrically supplied by a transmission device. If the speed reduces then electricity my by gathered from the system by the transmission device. The rotor of the flywheel is made out of high strength carbon filaments. These are suspended by magnetic bearings. The rotor can reach speeds of twenty thousand to over fifty thousand revs per minute in a vacuum enclosure. The advantages of using flywheels enables a long-life span, little maintenance, high power density uses environmentally inert material and has excellent cycle stability. The disadvantages to flywheels have high levels of discharge to the resistance in the air and bearing losses. They also suffer from low current efficiency.
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please check the attached files, I do need you to feel the worksheet and templet please for mechanical Engineering
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write a recommandation report

ST Thomas University Pulmonary Function and Severity of DR Asthma Attack Discussion.

Respond to your peers by extending, refuting/correcting, or adding additional nuance to their posts. All replies must be constructive and use literature where possible.Ramos, Kevin ErnestoNov 5, 2020 at 14:29Case Study 1 Pulmonary FunctionThe Severity of D.R. Asthma AttackAccording to asthma therapists, asthma can be mild, moderate, or bordering. According to this case study, D.R. has been feeling asthmatic symptoms; he has been testing himself for three days with albuterol nebulizer therapy. He says that the albuterol inhaler assisted him from experiencing severe asthma symptoms. Therefore, the severity of his asthma attack is moderate. Most Common Triggers for AsthmaThe most triggers to asthma include positive family history, exposure to allergens, exposure to occupational triggers, recurrent respiratory viral infections, prematurity, and low birth weight, residence in a large urban center, exposure to air [pollution of cigarette smoke, GE reflux disease, and certain allergic diseases such as hay fever, eczema (Katz et al., 2018) Factors that Might be the Etiology of D.R. Being an Asthmatic PatientAccording to this case study, the factors that might be the etiology of D.R. being an asthmatic patient in the Family Care Clinic include; 27-year-old male complains about increasing SOB, wheezing, fatigue, cough, stuffy nose, watery eyes, and postnasal drainage that started in the past four days. These are symptoms of asthma. The man continues to explain that he severally monitored his peak flow rates daily in the last three days. The peak flow ranged between 65-70%, in which every morning, it begins at a lower limit.Case Study 2Fluid, Electrolyte, and Acid-Base HomeostasisThe Type of Water and Electrolyte Imbalance According to Laboratory ValuesAccording to the laboratory results, Mr. Brown has a Hypertonic imbalance in which high solute ECF concentration from water loss is noticed. In her case, water is being shifted from intercellular space to extracellular space. MS Brown has decreased water intake, resulting in hypernatremia because her level is above 145 mEq/l. additionally, her glucose levels are too high, and. Ms. Brown also has mild hyperkalemia and slightly high serum chloride levels.Signs and Symptoms of Diabetes MellitusMs. Brown is likely to have diabetes mellitus, including; fever, weight loss, tachycardia, agitation, convulsions, flushed skin, restlessness, weak pulse, dry mouth, and skin, decreased urine output, thirst, and altered cognitive function. (Milani et al., 2017)Appropriate Treatment for Ms. BrownIn this case, the appropriate treatment is administering an isotonic fluid that doesn’t have salt, such as D5W, to the patient. The fluid is administered consistently until the serum sodium levels return to normal. However, clinical practitioners prefer using the Hypotonic sodium solution since it is thought to be safer than D5W. Hypotonic sodium solution gradually reduces the serum sodium level and decreases the risk of cerebral edema. The solution is most preferable in case of severe hyperglycemia, which Ms. Brown has with hypernatremia.What does the ABGs from Mr. Brown Indicate?In this case, Ms. Brown ABG’S indicate that she has metabolic acidosis since her pH level appears to be below 7.35. The paCO2 is reduced compared to its normal from the body compensating with her breathing (Milani et al., 2017). Also, her HCO3-is lesser than 24 mEq/l. Therefore, herb PaO2 indicates that she is hypoxemic because, according to the values, her level is 70, which is below 80 mmHg.Anion Gap and Its Clinical SignificanceAn anion gap is a measurement or blood test done to check the levels of acid in the blood. Anion gap test is based on another test blood called electrolyte panel. There are positively charged and negatively charged electrolytes. The difference or the gap between them is realized by conducting anion gap measurements; hence, a high union gap reflects a condition called metabolic acidosis, meaning that the blood’s acidity level is increased.ReferencesKatz, S., Arish, N., Rokach, A., Zaltzman, Y., & Marcus, E. L. (2018). The effect of body position on pulmonary function: a systematic review. BMC pulmonary medicine, 18(1), 1-16.Milani, G. P., Grava, A., Bianchetti, M. G., Lava, S. A., Teatini, T., & Fossali, E. F. (2017). Electrolyte and acid-base abnormalities in infants with community-acquired acute pyelonephritis: Prospective cross-sectional study. Nephron, 137(2), 99-104.
ST Thomas University Pulmonary Function and Severity of DR Asthma Attack Discussion

Economics homework help

Economics homework help. This is a paper that is focusing on the student to discuss assumptions of the Transpersonal Caring relationship. The paper also provides additional information to read and instructions to use in the writing of the assignment paper.,Discuss assumptions of the Transpersonal Caring relationship,Case Study #2,Claude Jean-Baptiste is recovering from post-hip replacement surgery and has been transferred to the Rehabilitation Institute adjacent to the hospital. When he enters the unit, he sees welcoming signs written in several languages including his own, Creole. Since there are no nurses on that shift that speak Creole, they use a language line to ask for translation services. During this initial nursing assessment, the translator informs Mr. Jean-Baptiste that the nurses invite him to have a relative at his side so that they can be sure to understand and meet his needs. He is asked about Haitian customs and beliefs that they might honor. Mr. Jean-Baptiste is encouraged to bring food and spiritual care items, and to share the warmth of his culture with the nursing staff.,Firstly, discuss assumptions of the Transpersonal Caring relationship. What is the nurse’s role?, Secondly, how is love, as defined by Watson, evident in this caring moment?, Thirdly, how can the nurse creatively use self to create a healing environment?, Fourthly, discuss the strengths and limits to ,Watson’s Theory,.,Discuss assumptions of the Transpersonal Caring relationship,Assignment Expectations:,Length: 1500 – 1750 words,Structure: Include a title page and reference page in APA format.  These do not count towards the minimum word count for this assignment. Your essay must include an introduction and a conclusion.,References: Use appropriate APA style in-text citations and references for all resources utilized to answer the questions.,Rubric: This assignment uses a rubric for scoring. Please review it as part of your assignment preparation and again prior to submission to ensure you have addressed its criteria at the highest level.,Format: Save your assignment as a Microsoft Word document (.doc or .docx) or PDF document (.pdf),File name: Name your saved file according to your first initial, last name, and the assignment number (for example, “RHall Assignment 1.docx”),Attachments,Click Here To Download,Economics homework help

Ohio University Process Costing Discussion

nursing essay writing service Ohio University Process Costing Discussion.

Write an analytical summary of your learning outcomes from chapters 5 and 6. In addition to your analytical summary, address the following:As a manager, discuss how you would use or have used the concepts presented in chapters 5 and 6. Provide numerical examples to support your discussion.The main post shall consist of 350 words.Here are the links related to Chapter 5 and 6. Attached word document with some posts. Read and please respond to each post with atleast 150 words each.
Ohio University Process Costing Discussion

final paper sc 493

final paper sc 493. I’m studying and need help with a Computer Science question to help me learn.

Please type your answers in a word document,APA format and submit.

Explain wat is Forensic Analysis and it can be used for what purpose?
List and briefly explain the four (4) Incident Response Plan.
List and briefly describe the 4 phases of NIST publication SP 800-86.
Describe what are Rootkits and the danger of Rootkits.
Describe what is Network Forensics?
Describe the concept of Dead-Box VS Network Forensics
List and briefly describe technical challenges in Cloud Forensics.
List and describe at least three (3) methods of hiding data.

Note: each questions explain in details.
final paper sc 493

Create a website with the information in the word document, computer science homework help

Create a website with the information in the word document, computer science homework help.

Following the teacher’s instructions I attach you have to make a website for my restaurant with the same organization and information I provide in the word document. Although in teacher’s document she asks for wire-frames and a doc about the project, you only have to do the website. Here is the information needed- Teacher’s instructions doc. DO ONLY WHAT IS HIGHLIGHTED IN YELLOW.- MY DESIGN ZIP=Docs with the website: Keep the layout but feel free to play with fonts and overall design. -Doc with Cholor scheme: link to a website with the colors I want for my website.Any question, any doubt, any suggestion, anything, I will be quick to respond.I NEED THE HOME PAGE BY 12TH OF APRIL!!!!
Create a website with the information in the word document, computer science homework help

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