Lecture 44 and 45 AUTOMATIC GENERATION CONTROL 1.0 INTRODUCTION Maintaining power system frequency at constant value is very important for the health of the power generating equipment and the utilization equipment at the customer end. The job of automatic frequency regulation is achieved by governing systems of individual turbine-generators and Automatic Generation Control (AGC) or Load frequency control ( LFC) system of the power system. 2.0 FREQUENCY VARIATION IN A SINGLE MACHINE To understand
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In Aldous Huxley’s “Time and the Machine” the author is unenthusiastic with the use of the present generation’s use of time management as opposed to previous generations. In the past, people were more involved with nature, they enjoyed taking walks and kids ran and played outside more. Nowadays more children would prefer to remain in doors and play video games or surf the internet instead of a game of “jump rope.” Nature is relevant in this work due to the author’s frustration with time being spent
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Water is a unique solvent that allow organism to continue and advance. The substantial and chemical aspects of water provide a good medium for aquatic organisms. The bond that is set up between both water and aquatic organisms provide and transport nutrients to the living organism. Since water is transparent plants that live under water can still use the sunlight to perform photosynthesis. Water is also cohesive; water is made up of two hydrogen units and one oxygen unit. They are bonded covalently
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INTRODUCTION The following research paper has been compiled to provide an insight into Chemical Weapons (CW). It deals with the description and the usage of various chemical reagents used by various countries and their negative effects. The following also shows the policies of countries towards chemical weapons, their stockpiles and their lethality and disposal. The following report also shows the history of chemical warfare, their demilitarisation, proliferation and the various councils set up to reduce
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CHAPTER 12: STRUCTURES AND PROPERTIES OF CERAMICS (Written Report) GROUP MEMBERS Alzate, Niel Aquino, Stef Bartolazo, Ronald M. Belen, Sinotriss Benjamin, Jessa BSIE III-I CHAPTER 12: STRUCTURES AND PROPERTIES OF CERAMICS (Written Report) Bartolazo INTRODUCTION Ceramic materials are inorganic and nonmetallic materials. Most ceramics are compounds between metallic and nonmetallic elements for which the inter-atomic bonds are either totally ionic, or predominantly ionic but
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The purpose behind this lab is to identify the element that is producing these color lights when its valence electrons are excited by the flame. Step1: using the streakier, light the busen burner, adjust it until the flame is small and blue Step2: take a wooden split that has been soaked overnight from the bottle Step3: hold the wooden splint in the flame. Observe the color and record Step4: rinse wooden splint off with water and dispose all Step5: turn off busen burner when you’re done Step6:
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The Goal Chapters 31 – 45 1. Give two examples from Alex’s company to illustrate the notion of “common sense is not common at all.” First, according to the cost-accounting rules that everybody has used in the past, Alex’s company is supposed to balance capacity with demand first, and then try to maintain the flow. However, instead they shouldn’t be trying to balance capacity at all; they need excess capacity. The rule they should be following is to balance the flow with demand, not the capacity
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protons, and neutrons, and all matter is made of atoms. Atoms are indivisible and indestructible. All atoms of a given element are identical in mass and properties. Compounds are formed by a combination of two or more different kinds of atoms. A chemical reaction is a rearrangement of atoms; atoms can be neither created nor destroyed. BONDS BETWEEN ATOMS: Bond between atoms, the very heart of bonding is the attraction between positive and negative charges, specifically the positive charge of the
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Year 10 Science Semester Two Examination - 2012 TIME ALLOWED 15 MINUTES READING 1 HOUR AND 15 MINUTES WRITING Instructions to candidates: 1) Do not write or mark the examination booklet in any way during reading time. 2) Please check that, aside from this test booklet, you also have a multiple choice answer sheet and data sheet. 3) There are 14 pages in this booklet including this one. Please check to ensure that this is so. 4) Note that the time allocated for the examination is 75 minutes and
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Experiment #3 Mark A. Bruder 07. T.A. Michael Hall Alkanes: Chlorination Introduction: The purpose of this experiment is to determine the reactivity of hydrogen atoms on a carbon chain using free radical chlorination. In this experiment 1-chlorobutane will be chlorinated with the combination of sulfuryl chloride and ABCN as an initiator to produce the chlorine radicals. The combination of 1-chlorobutane and sulfur chloride will produce four dichlorobutane
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