Explain 3. 2) You may not distribute or commercially exploit the content, especially on another website. Engineering professionals are among the most satisfied worker, ... (57%) state that the job market is saturated with qualified talent. When the magnetizing force is small, the flux density increases as the magnetizing force increases. When the feed to a distillation column is a saturated liquid, slope of the feed line is a) Zero b) Unity c) Infinity d) None of these Electrical engineering dates back to the late 19th century, and is one of the newer branches of engineering. In case of wet steam, the actual enthalpy can be calculated with the vapor quality, x, and the specific enthalpies of saturated liquid water and dry steam: hl = enthalpy of saturated liquid water (J/kg). If a BJT is saturated, V CE is approximately equal to VCC V CE is approximately 1/2 VCC V CE is near zero none of the others Get more help from Chegg Get 1:1 help now from expert Electrical Engineering tutors The Cookies Statement is part of our Privacy Policy. I hope till there is a problem, there is a requirement of engineer, 1. d. 8 electrons. 4. J. R. Lamarsh, A. J. Baratta, Introduction to Nuclear Engineering, 3d ed., Prentice-Hall, 2001, ISBN: 0-201-82498-1. The field of electronics was born with the invention of the thermionic valve diode vacuum tube in 1904 by John Ambrose Fleming, and was the foundation of all electronics, including radios, television and radar, until the mid-20th century. 1 electron. The field of electronics was born with the invention of the thermionic valve diode vacuum tube in 1904 by John Ambrose Fleming, and was the foundation of all electronics, including radios, television and radar, until the mid-20th century. The term is used especially in applications involving diodes and bipolar transistor s. As the forward bias in a semiconductor P-N junction increases, the current through the junction also increases, up to a certain point. No problem! While the average salary is just under $60,000 and only requires an associate’s degree, there are already almost 150,000 such professionals in the US market. The feedwater (secondary circuit) is heated from ~260°C 500°F to the boiling point of that fluid (280°C; 536°F; 6,5MPa). June 1992. It is well known to us that iron has very little reluctance. Electrical Engineering Q&A Library General questions: 1. Water pressure in a closed system tracks water temperature directly; as the temperature goes up, pressure goes up. In a ferromagnetic substance such as laminated or powdered iron, saturation is a condition in which an increase in magnetizing force fails to produce an increase in the magnetic flux density. The air that contains maximum amount of moisture that it can hold at particular temperature is called as saturated air. r/engineering is a forum for engineering professionals to share information, knowledge, experience related to the principles & practices of the numerous engineering disciplines. If a water exists as a liquid at the saturation temperature and pressure with quality of x = 0, it is called a saturated liquid state (single-phase). My question is, is engineering really saturated? Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business. Is it … The hot primary coolant (water 330°C; 626°F; 16MPa) is pumped into the steam generator through primary inlet. Subcooling margin is very important safety parameter of PWRs, since the boiling in the reactor core must be excluded. I am interested in having a degree that will at least guarantee me a job somewhere when I graduate. The transfer of heat is accomplished without mixing the two fluids to prevent the secondary coolant from becoming radioactive. It is simply because of supply vs demand imbalance. Cloud disaster recovery (cloud DR) is a combination of strategies and services intended to back up data, applications and other ... RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data ... Business impact analysis (BIA) is a systematic process to determine and evaluate the potential effects of an interruption to ... An M.2 SSD is a solid-state drive that is used in internally mounted storage expansion cards of a small form factor. ABET is a professional association that accredits associate, bachelor's, and master's degree programs in engineering, engineering technology, computing, and applied science. I think I really want to be an engineer. Thanks :) on the border of vapor/liquid phases), specifying temperature alone will set the pressure and specifying pressure will set the temperature. Kleinstreuer C. Modern Fluid Dynamics. But above statement is only true when magnetic flux density is an iron core is less than specific limit. The steam produced drives the turbine. Control of calibration electrodes is only necessary before each potential survey, and thereafter every 24 h. I found the following paper and am attempting to put Saturated Pressure and Saturated Temperature into excel. 2. The armature resistance is 0.064 Ohms/phase. U.S. Department of Energy, THERMODYNAMICS, HEAT TRANSFER, AND FLUID FLOW. Is it true that water boils at higher temperature at higher pressure? In this sense, electrical engineering is the branch dealing with “heavy current”—that is, electric light and power systems and apparatuses—whereas electronics engineering deals with such “light current” applications as telephone and radio communication, computers, radar, and automatic control systems. r/engineering is **NOT** for students to ask for guidance on selecting their major, or for homework / project help. The specific enthalpy of saturated liquid water (x=0) and dry steam (x=1) can be picked from steam tables. This is the complete guide to learn electrical engineering basics in 2020. Read the sidebar BEFORE posting. c. 4 electrons. The graphical representation of this relationship between temperature and pressure at saturated conditions is called the vapor pressure curve and it can be seen at the phase diagram of water. High pressure of primary coolant is used to keep the water in the liquid state. ... mechanical, and electrical engineers especially in cities such as Houston, New York, and San Diego. Submit your e-mail address below. Steam generators are heat exchangers used to convert feedwater into steam from heat produced in a nuclear reactor core. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Not to be cocky, but being a 99 ATAR student should greatly increase my chances of getting a job after an engineering degree. In Agile software development, a sprint raditionally lasts 30 days. What is the difference between the critical point and the triple point? Artificial intelligence - machine learning, Circuit switched services equipment and providers, Business intelligence - business analytics, IT strategy (information technology strategy), SAP FICO (SAP Finance and SAP Controlling), Cisco IOS (Cisco Internetwork Operating System), SOAR (Security Orchestration, Automation and Response), PCI DSS (Payment Card Industry Data Security Standard), Certified Information Systems Auditor (CISA), protected health information (PHI) or personal health information, HIPAA (Health Insurance Portability and Accountability Act). The information contained in this website is for general information purposes only. As can be seen, wet steam will always have lower enthalpy than dry steam. I think that alone will separate engineers from other degrees. •The disadvantage of saturated reactor is its slow response. Copyright 1999 - 2020, TechTarget Main purpose of this project is to help the public learn some interesting and important information about engineering and thermal engineering. Engineering is always going to be around, and it is more difficult to learn than basic software development (note that I said "basic" software development). The primary coolant leaves (water 295°C; 563°F; 16MPa) the steam generator through primary outlet and continues through a cold leg to a reactor coolant pump and then into the reactor. The electrical conductivity of saturated soil-paste extract (EC e) has been extensively used as the standard index for soil salinity assessment.However, this method is time-consuming and laborious. 1 Answer to For semiconductor material, its valence orbit is saturated when it contains a. Electrical engineers design, develop, test and supervise the manufacturing of electrical equipment, such as electric motors, radar and navigation systems, communications systems and power generation equipment, states the U To learn about basic Electrical Engineering, check out our articles on Transformers, Electrical Symbols, Alternators, DC Motors, Induction Motors, Star Delta Starter, Lenz’s law, Faraday’s law, and DOL Starters. A pressurizer is a key component of PWRs. Written by a leader on the subject, Introduction to Geotechnical Engineering is first introductory geotechnical engineering textbook to cover both saturated and unsaturated soil mechanics. Electrical engineering is an engineering discipline concerned with the study, design and application of equipment, devices and systems which use electricity, electronics, and electromagnetism.It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution and use. For example:  In pressurizer of pressurized water reactors the saturation temperature is about 350°C, but this corresponds to the pressure of 16,4 MPa, which have to be maintained in the primary circuit. SaturatedReactor (SR) | Electrical and Electronics Engineering Ask Or Answer Me. Can you explain this answer? The temperature at which vaporization (boiling) starts to occur for a given pressure is called the saturation temperature or boiling point. Springer, 2010, ISBN 978-1-4020-8670-0. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. This limit may be from 1.6 to 1.8 Tesla depending upon the particular magnetic steel or … For a pure substance there is a definite relationship between saturation pressure and saturation temperature. Do Not Sell My Personal Info. Glasstone, Sesonske. Saturated Steam Equations Paper. Volume of the pressurizer (tens of cubic meters) is filled with water on saturation parameters and steam. •The advantage of Saturated reactor is it low maintenance and performance at high temperature. 2. When the vapor quality is equal to 0, it is referred to as the saturated liquid state (single-phase). This diagram is shown in the figure. Electrical4U is dedicated to the teaching and sharing of all things related to electrical and electronics engineering. Temperature in the pressurizer can be maintained at 350 °C (662 °F), which gives a subcooling margin (the difference between the pressurizer temperature and the highest temperature in the reactor core) of 30 °C. As can be seen from the phase diagram of water, in the two-phase regions (e.g. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Springer; 2015, ISBN: 978-3-319-13419-2, Moran Michal J., Shapiro Howard N. Fundamentals of Engineering Thermodynamics, Fifth Edition, John Wiley & Sons, 2006, ISBN: 978-0-470-03037-0. A pressurizer is a component of a pressurized water reactor. Boiling of the primary coolant shall not occur. The study of electrical engineering involves the analysis of the energy transfer from one form to another or from one point to another. Pressure in the pressurizer is controlled by varying the temperature of the coolant in the pressurizer. Yes, of course. On the other hand the submerged electrical heaters are designed to increase the pressure by evaporation the water in the vessel. To achieve this, the coolant in the reactor coolant system is maintained at a pressure sufficiently high that boiling does not occur at the coolant temperatures experienced while the plant is operating or in an analyzed transient. AS3851 is based on IEC60909, however section 3.6.1 of IEC60909 does not mention any ratio of X"d sat / X"d unsat to use when only X"d unsat is available. Please check the box if you want to proceed. The basic design of the pressurized water reactor includes such requirement that the coolant (water) in the reactor coolant system must not boil. Main purpose of this website is to help the public to learn some interesting and important information about thermal engineering. Saturation is the fully conducting state in a semiconductor junction. Saturation is the fully conducting state in a semiconductor junction. Once saturated, the inductance of the saturable reactor drops dramatically. Electrical engineering dates back to the late 19th century, and is one of the newer branches of engineering. But there is a limit to the flux density that can be obtained in a ferromagnetic material. The water spray system (relatively cool water – from cold leg) can decrease the pressure in the vessel by condensing the steam on water droplets sprayed in the vessel. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Saturated calomel electrodes should be used for calibration. Thermal Engineering, Copyright 2020 Thermal Engineering | All Rights Reserved |, What is Saturation Vapor Curve – Definition, What is Characteristics of SCWRs – Definition. Is the electrical engineering sector to saturated with new grads for 2011-2012? An insight into all the jobs like mechanical, chemical, civl and structural, and electrical would be greatly appreciated (in terms of prospects in 5-6 years). The pressure at which vaporization (boiling) starts to occur for a given temperature is called the saturation pressure. DOE Fundamentals Handbook, Volume 1, 2 and 3. Our Website follows all legal requirements to protect your privacy. December 2013-January 2014 I will be submitting university applications --so I have already given a lot of thought to this. Pressure in the primary circuit of PWRs is maintained by a pressurizer, a separate vessel that is connected to the primary circuit (hot leg) and partially filled with water which is heated to the saturation temperature (boiling point) for the desired pressure by submerged electrical heaters. Saturated Pressure (working) =(B18+273.15)/647.096 [cacluates Tr from C] CRC Press; 2 edition, 2012, ISBN: 978-0415802871, Zohuri B., McDaniel P. Thermodynamics in Nuclear Power Plant Systems. Cookie Preferences If you want to get in touch with us, please do not hesitate to contact us via e-mail: In thermodynamics, the term saturation defines a condition in which a mixture of vapor and liquid can exist together. I got Saturated Pressure to work, but can't get saturated Temperature to work. Nuclear Reactor Engineering: Reactor Systems Engineering, Springer; 4th edition, 1994, ISBN: 978-0412985317, Todreas Neil E., Kazimi Mujid S. Nuclear Systems Volume I: Thermal Hydraulic Fundamentals, Second Edition. W. M. Stacey, Nuclear Reactor Physics, John Wiley & Sons, 2001, ISBN: 0- 471-39127-1. What is the difference between saturated vapor and superheated vapor? Magnetic saturation is usually undesirable in electronic circuits that use iron-core inductors or transformers. 8:42. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. Every child must be guided to pursue their born talent. A sprint is a set period of time during which specific work has to be completed and made ready for review. Water spray system and electrical heaters system. When the bias is increased beyond that point (called the saturation point), no further increase in the current occurs. A saturable reactor in electrical engineering is a special form of inductor where the magnetic core can be deliberately saturated by a direct electric current in a control winding. The saturated liquid curve is the curve separating the subcooled liquid state and the two-phase state in the T-s diagram. Electrical and Electronics Engineering Technician. In the characteristic curve (current versus forward bias) of an amplifying or switching device, saturation is indicated by a leveling off of the curve as the forward bias increases. Find (a) the unsaturated value of the synchronous reactance in Ohms per phase and per unit, (b) the short-circuit ratio, and (c) the saturated synchronous reactance in per unit and Ohms per phase. For example, if you take in our body to create the parts there is a requirement of Bio-Mechanical Engineer 2. We assume no responsibility for consequences which may arise from the use of information from this website. Australian Standard AS3851 Section 7.8.1 states "where only unsaturated values of X"d are available, assume the saturated values to be 85% of the unsaturated values". They are used in the most nuclear power plants, but there are many types according to the reactor type. The term is used especially in applications involving diodes and bipolar transistor s. I've heard a thought tossed around that it would be hard finding a job as an engineer. We'll send you an email containing your password. For these purposes two systems are installed. More supply, less demand. •Saturated reactor is a magnetic amplifier. Loading... Unsubscribe from Ask Or Answer Me? The Engineering Mindset 2,785,249 views. Between these two states, we talk about vapor-liquid mixture or wet steam (two-phase mixture). However, these electrodes should also be controlled to select the best electrode. This decreases inductive reactance and allows increased flow of the alternating current (AC). Saturation temperature or boiling point. We hope, this article, Saturation – Boiling Point, helps you. At constant pressure, an addition of energy does not changes the temperature of the mixture, but the vapor quality and specific volume changes. Gabor Takacs Ph.D, in Electrical Submersible Pumps Manual (Second Edition), 2018 2.3.2.4 Cavitation When pumping liquids, the pressure at any place inside the pump must not be allowed to fall below the saturated vapor pressure of the liquid valid at the operating temperature because cavitation occurs. We can define relative humidity as the ratio of the partial pressure of the water vapor at a given temperature to the partial pressure of water vapor when the air is saturated at the same temperature. J. R. Lamarsh, Introduction to Nuclear Reactor Theory, 2nd ed., Addison-Wesley, Reading, MA (1983). | EduRev Electrical Engineering (EE) Question is disucussed on EduRev Study Group by 118 Electrical Engineering (EE) Students. Privacy Policy If so, give us a like in the sidebar. Heat is transferred through the walls of these tubes to the lower pressure secondary coolant located on the secondary side of the exchanger where the coolant evaporates to pressurized steam (saturated steam 280°C; 536°F; 6,5 MPa). On the other hand, when the vapor quality is equal to 1, it is referred to as the saturated vapor state or dry steam (single-phase). b. equal (+) and (-) ions. All Rights Reserved, It is much smaller than reluctance of air. When this limit is reached, the material is said to be at its saturation point. Education: To become an electrical engineer, you will have to earn a bachelor's degree in electrical engineering or electrical engineering technology from a program that is ABET accredited. Nov 27,2020 - The condition for non saturated region isa)Vds = Vgs – Vtb)Vgs lesser than Vtc)Vds lesser than Vgs – Vtd)Vds greater than Vgs – VtCorrect answer is option 'C'. The pressurized steam leaves the steam generator through a steam outlet and continues to the steam turbine.