Xem 1-20 trên 48 kết quả Wind engineering
  • VNU Journal of Science, Mathematics - Physics 25 (2009) 21-38 Proper Orthogonal Decomposition and its Proper Transformations has been applied widely in many engineering topics including the wind engineering recently due to its advantage of optimum approximation of multi-variate random fields using the modal decomposition and limited number of dominantly orthogonal eigenvectors.

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  • The Idaho National Engineering and Environmental Laboratory (INEEL), through the U.S. Department of Energy (DOE), has proposed that a large-scale wind test facility (LSWTF) be constructed to study, in full-scale, the behavior of low-rise structures under simulated extreme wind conditions. To determine the need for, and potential benefits of, such a facility, the Idaho Operations Office of the DOE requested that the National Research Council (NRC) perform an independent assessment of the role and potential value of an LSWTF in the overall context of wind engineering research.

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  • Pipe stress analysis calculates the stress in a piping system subject to normal operating loads such as pressure, weight, and thermal expansion, and occasional loads such as wind, earthquake, and water hammer. Because all piping systems are connected to equipment such as vessels, tanks, pumps, turbines, and compressors, the piping stress analysis also involves evaluation of the effect of the piping forces and moments to the connecting equipment. As the piping stress is controlled by the arrangement of the supports and restraints, the scope of piping stress includes also pipe supports.

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  • In electrical power generation system the present trend is to maximize the renewable energy penetration ratio as much as possible. Among the renewable energy sources such as wind, solar, biogas/biomass, tidal, geothermal, etc., wind energy has the huge potential to play an important role in energy market along with conventional energy sources. Therefore, reasonably the research on wind power is progressing rapidly.

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  • 7 a) What is the part/ item to take out water on the windscreen of a car? b) What is the part at the top of a car? c) What protects from the wind? d) What covers the car engine? e) Where can you put your suitcases/ luggage in the car? f) What helps the driver see that the front car is turning left or right? g) What can you see on a car so that you know where you sign the car? Answer the following questions:

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  • Forensic Engineering Investigation is a compendium of the investigative methodologies used by engineers and scientific investigators to evaluate some of the more common types of failures and catastrophic events. In essence, the book provides analyses and methods for determining how an entity was damaged and when that damage may have legal consequences. The material covers 21 common types of failures, catastrophic events, and losses that forensic engineers routinely assess.

    pdf50p ken333 28-06-2012 54 18   Download

  • Wind tunnels are the primary research tools used in aerodynamic research. They are used to study the eff ects of air moving past solid objects. Although great advances in computational methods have been made in recent years, wind tunnel tests remain essential for obtaining the full range of data required to guide detailed design decisions for various practical engineering problems

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  • Wind power generation is considered as the most economic viable alternative within the portfolio of renewable energy resources. Among their advantages are the large number of potential sites for erection and the rapidly evolving technology with many suppliers offering from the individual turbine set to even turnkey projects. The disadvantages of wind energy include high capital costs and lack of controllability on the discontinuous or intermittent resource.

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  • As the fastest growing source of energy in the world, wind has a very important role to play in the global energy mix. This becomes increasingly apparent as many countries begin to phase out traditional fossil fuels, while some re-evaluate their comfort level with nuclear power generation. The conversion of wind’s kinetic energy into another desired form dates back millennia. The years since have afforded some time for maturation of the technology.

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  • Wind energy is one of the most prominent renewable energy sources today. The increasing concerns with environmental issues are driving the search for more sustainable electrical sources. Wind energy along with solar energy, biomass and wave energy are possible solutions for environmentally friendly energy production. The initialization of wind power installation, which started in the beginning of 1980s, is very much related to the oil crises of the mid 1970s.

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  • Tham khảo sách 'wind tunnels and experimental fluid dynamics research_2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • During the last two decades, increase in electricity demand and environmental concern resulted in fast growth of power production from renewable sources. Wind power is one of the most efficient alternatives. Due to rapid development of wind turbine technology and increasing size of wind farms, wind power plays a significant part in the power production in some countries.

    pdf0p ktcn_1 10-07-2012 37 10   Download

  • Tham khảo sách 'sustainable development – energy, engineering and technologies – manufacturing and environment', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tham khảo sách '20% wind energy by 2030', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Human efforts to conquer flight, land on the moon, go beyond the earth and discover new universes would have been difficult without the development of wind tunnels. The early 18th and 19th century aerodynamists used whirling arm to study various shapes which suf‐ fered from a major fault that the body under investigation was forced to fly in its own un‐ disturbed wake. This has lead to the development of wind tunnels to overcome the problem.

    pdf0p lyly_5 22-03-2013 33 2   Download

  • Tham khảo sách 'wind energy in colombia', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • These are exciting times for Indian renewable energy, and especially so for solar and wind energy. Investments in renewable energy industry in India have increased from a meager $94.58 million in 2001 to $3.7 billion in 2008, and about $7.2 billion by 2009 - at a CAGR of 72%. A significant part of these investments were in wind energy. For the past few years China has been doubling its cumulative wind energy installed capacity, and by end of 2009, the country had a cumulative installed capacity of 25.1 GW, from 12.1 GW for end-2008 - over 100% growth! During the...

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  • The wind itself owns variations and indeterminists governed by global circulations, regional climates, and local topographies and so on. Customarily, extreme wind speeds are preferably defined in term of probability which is interested for engineering today. Thus, the well wind records, identified wind mechanisms, and suitable methods of extreme value analysis and so on, are always required to predict reliable design wind speeds that would be used for structural design. For the past three decades, there have been many valuable studies in developing basic design wind speed map. ...

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  • Access for checking air gap Air-deflecting baffle Coil bracing ring Fan Rotor end ring Rotor bars Stator core Fully-formed coils of the two layer stator winding Core duct separator Preformed coil in section End winding connections Bearing endshield Terminal box with bolted on cable sealing end Shaft Grease ejector handle Grease collector Anti-friction bearing with grease regulator Grease impeller

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  • Myanmar was hit by Cyclone Nargis in May 2008 with winds of 190km/hour and an enormous sea surge. It destroyed houses and even whole villages and caused massive fl ooding with an offi cially estimated death toll of 140,000 people and the livelihoods of 2.4 million people seriously affected. I outlined issues relating to small-scale aquaculture in articles in previous columns (‘Myanmar revisited’ in the January-March 2009 issue and ‘Small-scale aquaculture in the Ayeyarwady Delta’ in the April-June 2009 issue).

    pdf52p huchigo 13-09-2010 98 39   Download

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