The document discusses wind power and wind turbines. It begins by explaining that wind power comes from the sun heating the earth's surface unevenly and causing air currents. It then discusses how wind turbines work by converting the kinetic energy of wind into rotational shaft energy using blades, and then into electrical energy using a generator. The document provides details on turbine components, efficiency factors, costs, wind resource potential in the US, and environmental impacts of wind power.
Technical Seminar on Vertical Axis Wind TurbinesShivaling1
An academic technical seminar on the topic of Vertical Axis Wind Turbines, presented in the Final Year Technical Seminar as a requirement for partial fulfillment for the award of BE in Mechanical Engineering, by Visvesvaraya Technological University.
Contents based on an overview of Vertical Axis Wind Turbines, their types, advantages and disadvantages, working principle and Betz's Limit for VAWT
This is enegy taken from the natural air!
Can you believe electricity being created because of air!
It is practiced on heights or near sea's.
Go ahead and enjoy!
Control Scheme for a Stand-Alone Wind Energy Conversion SystemRoja Rani
Energy is the considered to be the pivotal input for development.
At present owing to the depletion of available conventional resources and concern regarding environmental degradation, the renewable sources are being utilized to meet the ever increasing energy demand.
Due to a relatively low cost of electricity production wind energy is considered to be one of the potential sources of clean energy for the future.
Technical Seminar on Vertical Axis Wind TurbinesShivaling1
An academic technical seminar on the topic of Vertical Axis Wind Turbines, presented in the Final Year Technical Seminar as a requirement for partial fulfillment for the award of BE in Mechanical Engineering, by Visvesvaraya Technological University.
Contents based on an overview of Vertical Axis Wind Turbines, their types, advantages and disadvantages, working principle and Betz's Limit for VAWT
This is enegy taken from the natural air!
Can you believe electricity being created because of air!
It is practiced on heights or near sea's.
Go ahead and enjoy!
Control Scheme for a Stand-Alone Wind Energy Conversion SystemRoja Rani
Energy is the considered to be the pivotal input for development.
At present owing to the depletion of available conventional resources and concern regarding environmental degradation, the renewable sources are being utilized to meet the ever increasing energy demand.
Due to a relatively low cost of electricity production wind energy is considered to be one of the potential sources of clean energy for the future.
Resumen de ponencia presentada por Blackberry&Cross (http://www.bbcross.com) acerca de la LEAN (LEAN Six Sigma) en un contexto de sostenibilidad, conservación y mejor manejo de recursos ambientales, como parte integral de la gestión de mejoramiento continuo. Se mencionan errores o contradicciones encontrados en investigación de campo.
Blackberry&Cross sus accionistas, trabajadores, aliados ni proveedores se hacen responsables del uso que el lector(a) haga de este material.
Para mayor información contacte a Blackberry&Cross. soporte@blackberrycross.com
Report content as following:
1.MFG paste control procedure establish
2.The cost reduction as raise available utility
3.The related expendable control and cost down
SaaS based Document And Record Management for Partnersitechnosoft
i-Technosoft provides SaaS based Document and Record Management for Partners providing Physical storage services and Large ISV’s. Lower your cost and increase revenue with i-Technosoft's Cloud Program. Applicable to UK Partners only.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
1. WWIINNDD PPOOWWEERR
By: Roger Rivera
What is it?
How does it work?
Efficiency
U.S. Stats and
Examples
2. WWIINNDD PPOOWWEERR -- WWhhaatt iiss iitt??
All renewable energy (except tidal and geothermal power), ultimately
comes from the sun
The earth receives 1.74 x 1017 watts of power (per hour) from the sun
About one or 2 percent of this energy is converted to wind energy
(which is about 50-100 times more than the energy converted to
biomass by all plants on earth
Differential heating of the earth’s surface
and atmosphere induces vertical and horizontal
air currents that are affected by the earth’s
rotation and contours of the land WIND.
~ e.g.: Land Sea Breeze Cycle
3. • Winds are influenced by the ground surface at altitudes up to
100 meters.
• Wind is slowed by the surface roughness and obstacles.
• When dealing with wind energy, we are concerned with
surface winds.
• A wind turbine obtains its power input by converting the
force of the wind into a torque (turning force) acting on the
rotor blades.
• The amount of energy which the wind transfers to the rotor
depends on the density of the air, the rotor area, and the wind
speed.
• The kinetic energy of a moving body is proportional to its
mass (or weight). The kinetic energy in the wind thus depends
on the density of the air, i.e. its mass per unit of volume.
In other words, the "heavier" the air, the more energy is
received by the turbine.
•at 15° Celsius air weighs about 1.225 kg per cubic meter, but
the density decreases slightly with increasing humidity.
4. A typical 600 kW wind turbine has a rotor diameter of 43-44 meters,
i.e. a rotor area of some 1,500 square meters.
The rotor area determines how much energy a wind turbine is able to
harvest from the wind.
Since the rotor area increases with the square of the rotor diameter, a
turbine which is twice as large will receive 22 = 2 x 2 = four times as
much energy.
To be considered a good location for
wind energy, an area needs to have
average annual wind speeds of at least 12
miles per hour.
5. WWIINNDDMMIILLLL DDEESSIIGGNN
A Windmill captures
wind energy and then
uses a generator to
convert it to electrical
energy.
The design of a
windmill is an integral
part of how efficient it
will be.
When designing a
windmill, one must
decide on the size of the
turbine, and the size of
the generator.
6. LARGE TURBINES:
• Able to deliver electricity at lower cost
than smaller turbines, because foundation
costs, planning costs, etc. are independent
of size.
• Well-suited for offshore wind plants.
• In areas where it is difficult to find sites,
one large turbine on a tall tower uses the
wind extremely efficiently.
7. SMALL TURBINES:
Local electrical grids may not be able to handle the large electrical
output from a large turbine, so smaller turbines may be more
suitable.
High costs for foundations for large turbines may not be
economical in some areas.
Landscape considerations
8. Wind Turbines: Number of Blades
Most common design is the three-bladed turbine. The most important reason is the
stability of the turbine. A rotor with an odd number of rotor blades (and at least three
blades) can be considered to be similar to a disc when calculating the dynamic
properties of the machine.
A rotor with an even number of blades will give stability problems for a machine
with a stiff structure. The reason is that at the very moment when the uppermost
blade bends backwards, because it gets the maximum power from the wind, the
lowermost blade passes into the wind shade in front of the tower.
9. • Wind power generators
convert wind energy
(mechanical energy) to
electrical energy.
• The generator is attached
at one end to the wind
turbine, which provides
the mechanical energy.
• At the other end, the
generator is connected to
the electrical grid.
• The generator needs to
have a cooling system to
make sure there is no
overheating.
10. SMALL GENERATORS:
Require less force to turn than a larger ones, but give much lower
power output.
Less efficient
i.e.. If you fit a large wind turbine rotor with a small generator it
will be producing electricity during many hours of the year, but it
will capture only a small part of the energy content of the wind at
high wind speeds.
LARGE GENERATORS:
Very efficient at high wind speeds, but unable to turn at low wind
speeds.
i.e.. If the generator has larger coils, and/or a stronger internal
magnet, it will require more force (mechanical) to start in motion.
11. o A windmill built so that it too severely interrupts the airflow
through its cross section will reduce the effective wind velocity
at its location and divert much of the airflow around itself,
thus not extracting the maximum power from the wind.
o At the other extreme, a windmill that intercepts a small
fraction of the wind passing through its cross section will
reduce the wind’s velocity by only a small amount, thus
extracting only a small fraction of the power from the wind
traversing the windmill disk.
o Modern Windmills can attain an efficiency of about 60 % of
the theoretical maximum.
12. P/m^2 = 6.1 x 10^-4 v^3
*The power in wind is
proportional to the cubic wind
speed ( v^3 ).
WHY?
~ Kinetic energy of an air mass
is proportional to v^2
~ Amount of air mass moving
past a given point is proportional
to wind velocity (v)
13. * An extra meter of tower will cost roughly 1,500 USD.
14. A typical 600 kW turbine costs about $450,000.
Installation costs are typically $125,000.
Therefore, the total costs will be about $575,000.
The average price for large, modern wind farms is
around $1,000 per kilowatt electrical power installed.
Modern wind turbines are designed to work for some
120,000 hours of operation throughout their design
lifetime of 20 years. ( 13.7 years non-stop)
Maintenance costs are about 1.5-2.0 percent of the
original cost, per year.
15. The U.S. currently has more than 1,600 MW of installed
capacity and produces about 3 billion KWh of electricity
each year.
This is enough to meet the annual residential needs of 1
million people.
More than 90 percent of this power is produced by three
wind farms in California (Altamont Pass, Tehachapi and
Palm Springs).
16.
17.
18.
19. • The U.S. contains enough useable wind resource to produce
more electricity than the nation currently uses.
• The majority of this usable resource is in the Great Plains
region. North Dakota alone has enough suitable wind
resource to supply 36 percent of the electricity consumed in
the U.S.
• In addition, development of major global wind energy
markets could significantly impact jobs—recent studies show
that each billion kilowatt-hours of annual wind energy
generation creates between 440 to 460 jobs.
20. Advantages of Wind Power
• The wind blows day and night, which allows windmills to
produce electricity throughout the day. (Faster during the day)
• Energy output from a wind turbine will vary as the wind varies,
although the most rapid variations will to some extent be
compensated for by the inertia of the wind turbine rotor.
• Wind energy is a domestic, renewable source of energy that
generates no pollution and has little environmental impact. Up to
95 percent of land used for wind farms can also be used for other
profitable activities including ranching, farming and forestry.
• The decreasing cost of wind power and the growing interest in
renewable energy sources should ensure that wind power will
become a viable energy source in the United States and worldwide.
21. Wind Turbines and the Landscape
- Large turbines don’t turn as fast attract less attention
- City dwellers “dwell” on the attention attracted by windmills
Sound from Wind Turbines
- Increasing tip speed less sound
- The closest neighbor is usually 300 m experiences almost no noise
Birds often collide with high voltage overhead lines, masts, poles, and
windows of buildings. They are also killed by cars in traffic. However,
birds are seldom bothered by wind turbines.
The only known site with bird collision problems is located in the
Altamont Pass in California.
Danish Ministry of the Environment study revealed that power lines
are a much greater danger to birds than the wind turbines.
Some birds even nest on cages on Wind Towers.