Xem 1-20 trên 47 kết quả Energy transmission
  • This book analyses the key issues of the offshore wind farm's energy transmission and grid integration infrastructure. But, for this purpose, there are not evaluated all the electric configurations. In the present book is deeply evaluated a representative case. This representative case is built starting from three generic characteristics of an offshore wind farm: the rated power, the distance to shore and the average wind speed of the location.

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  • 4.1 Concept of Energy Transmission and Distribution 4.2 Transmission Line Structures Joe C. Pohlman George G. Karady 4.3 Insulators and Accessories George G. Karady and R.G. Farmer 4.4 Transmission Line Construction and Maintenance Wilford Caulkins and Kristine Buchholz 4.5 Insulated Power Cables for High-Voltage Applications Carlos V. Núñez-Noriega and Felimón Hernandez 4.6 Transmission Line Parameters Manuel Reta-Hernández 4.7 Sag and Tension of Conductor D.A. Douglass and Ridley Thrash 4.8 Corona and Noise Giao N. Trinh 4.

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  • The present edition has been updated in a number of renewable energy technology areas (Chapter 4 and 5), where progress have been made over the recent years. New solar simulation studies have been added to Chapter 6, and market considerations have been included in the overview in Chapter 1, and in discussing industry liberalisation in Chapter 7. The remarks on advanced subjects made in the preface to the 2nd edition are still valid. A new growth area is fuel cells for stationary and mobile uses of hydrogen and other fuels.

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  • "Energy for a Warming World" challenges the commonplace notion that the amount of power which mankind can potentially harness from renewable resources is more than large enough to assuage future demand levels. By examining the renewable issue from an electrical engineering perspective, and exercising due regard for the limited capability of current and future electrical generation and transmission systems, this book attempts to provide more realistic statistics for the levels of power which could be extracted from sustainable resources in the critical time frame of 30 to 40 years....

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  • Traditional electrical power systems were essentially based on centralized and fuel consuming power generation plants, where end-users were supplied via unidirectional transmission and distribution grids.

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  • The rate of energy conversion or transmission (i.e. power) is related to the physical quantities such as force, speed, voltage, current, etc.For mechanical system, rate of energy transfer (i.e., power) to an object is the product of the force (F in Newton) and the speed (S in meter/sec) of the point where the force is applied.Q1. A person pushes an out-of-gas car with a force of 100 Newton (about 22.5 lb of force) to maintain a speed of 0.2 m/s. It took him 10 minutes to get to the nearest gas station. How much energy did this person use to do this work?...

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  • In industrialized countries, distribution systems deliver electricity literally everywhere, taking power generated at many locations and delivering it to end users. Generation, transmission, and distribution — of these big three components of the electricity infrastructure, the distribution system gets the least attention. Yet, it is often the most critical component in terms of its effect on reliability and quality of service, cost of electricity, and aesthetic (mainly visual) impacts on society....

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  • Vibrations are a part of our environment and daily life. Many of them are useful and are needed for many purposes, one of the best example being the hearing system. Nevertheless, vibrations are often undesirable and have to be suppressed or reduced, as they may be harmful to structures by generating damages (possibly leading to dramatic and spectacular accidents such as the case of the Aloha 243 fl ight or the bridge of Tacoma Narrows) or compromise the comfort of users through noise generation of mechanical wave transmission to the body....

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  • Spectrum of an FSK Signal : FSK involves frequency shifting a carrier between known fixed frequencies to convey digital data. Normally, FSK modulation is achieved using just two frequencies to represent binary data. For example, a frequency of 2000 Hz may represent a binary 1 (mark) and 1000 Hz a binary 0 (space). The energy of the signal alternates between the mark and space frequencies to convey the digital message. FSK describes the modulation of a carrier (or two carriers) by using a different frequency for a 1 or 0. The resultant modulated signal may be regarded as the sum...

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  • Power quality has become an important issue in recent times when many utilities around the world find very difficult to meet energy demands which leads to load shedding and power quality problems. This book on power quality written by experts in their fields will be of great benefit to professionals, engineers and researchers. This book comprises of 16 chapters which are arranged in two sections. Section one covers power quality monitoring, classification, and analysis aspects.

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  • This chapter deals with the technologies of basic energy transmission systems as used by product- and process-oriented industries and the military establishment. Figure 42.1 and Table 42.1 illustrate the essence of these types of systems. These classes of energy transmission systems can be characterized as follows: I. Mechanical rotary input in the form of A. An input speed N1 which can be constant or variable

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  • Power quality is an important measure of fitness of electricity networks. With increasing renewable energy generations and usage of power electronics converters, it is important to investigate how these developments will have an impact to existing and future electricity networks. This book hence provides readers with an update of power quality issues in all sections of the network, namely, generation, transmission, distribution and end user, and discusses some practical solutions.

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  • Radio Frequency Identifi cation (RFID) is a modern wireless data transmission and reception technique for applications including automatic identifi cation, asset tracking and security surveillance. As barcodes and other means of identifi cation and asset tracking are inadequate for recent demands, RFID technology has att racted interest for applications such as logistics, supply chain management, asset tracking, and security access control.

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  • CHAPTER 42 LOAD-CYCLE ANALYSIS Russ Henke, RE. Russ Henke Associates Elm Grove) Wisconsin 42.1 INTRODUCTION / 42.1 42.2 LOAD-DOMINATED ENERGY TRANSMISSION SYSTEM / 42.4 42.3 MACHINE-CYCLE ANALYSIS / 42.5 42.4 LOAD PLOTS / 42.7 REFERENCES / 42.9 GLOSSARY OF SYMBOLS A F TV p Q t T v 0 |i co Area Force or load Normal force, speed Pressure Flow rate Time Torque Velocity Angular velocity Coefficient of friction Angular velocity 42.

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  • The EU needs to protect its citizens and their rights from threats and challenges and further remove obstacles to circulation of citizens in Europe. This includes fighting crime and corruption, controlling our external borders and ensuring the respect of the rule of law and of fundamental rights, with the right balance between security and mobility. It also needs a well functioning and efficient justice system to support growth, entrepreneurship and attract investors.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A Feedback-Based Transmission for Wireless Networks with Energy and Secrecy Constraints

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  • Recently, mobile communication services are penetrating into our society at an explosive growth rate. All of the current communication systems have adopted digital technology. Nowadays, the demand for various wideband services such as high-speed Internet access and video/high-quality image transmission, is increasing. The thirdgeneration mobile communication system has been, designed to support wideband services with the same quality as the fi xed networks.

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  • This book has been prepared to present the state of the art on WiMAX Technology. The focus of the book is the physical layer, and it collects the contributions of many important researchers around the world. So many different works on WiMAX show the great worldwide importance of WiMAX as a wireless broadband access technology.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: mproving energy efficiency through multimode transmission in the downlink MIMO systems

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  • Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quốc tế đề tài: Improving energy efficiency through multimode transmission in the downlink MIMO systems

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