Ijraset Journal For Research in Applied Science and Engineering Technology
Authors: Gai Ram Prasad, Thotameedi Rakesh, Bestha Shivaji, Eega Shiva Prasad, Santoosh Madeva Naik , P. Praveen
DOI Link: https://doi.org/10.22214/ijraset.2024.59005
Certificate: View Certificate
Windmills have been a symbol of sustainable energy for centuries, and their relevance continues to grow in the modern era. This abstract explores the dual functionality of windmills for both pumping and power generation. Windmills have evolved from their traditional agricultural use to become versatile renewable energy sources, capable of harnessing wind energy for various applications. For pumping, windmills are employed to lift water from wells or reservoirs, providing a reliable source of water for irrigation and domestic use, especially in remote or off-grid areas. Their mechanical design, often featuring rotating blades, efficiently converts wind energy into rotational motion, driving a pump mechanism. In the realm of power generation, windmills are pivotal in the transition to cleaner energy sources. Modern wind turbines are designed with advanced aerodynamics and materials, enabling them to capture substantial kinetic energy from the wind. This energy is then transformed into electrical power through generators. Wind farms, comprised of multiple turbines, contribute significantly to electricity grids, reducing carbon emissions and dependence on fossil fuels. This abstract underscores the dual role of windmills as sustainable solutions for pumping and power generation, emphasizing their versatility and contribution to a greener future.
I. INTRODUCTION
In the world today, wind energy sector has been the fastest growing phenomenon in the sphere of renewable energy. Wind power can definitely play a significant role for guaranteeing a sustainable future, with the addition of 52 GW in 2017, an annual growth rate of approximately 11% [1, 2]. According to the Algerian government, the new and renewable energy strategy in Algeria (since 2011) aims to install 22,000 MW of generated energy from renewable sources by 2030 (37 % out of the total generated energy). Wind energy constitutes the second axis of development after solar energy with an electricity production of about 5010 MW (approximately 23%) [3, 4]. Algeria ranks at the lowest in the global installed wind energy capacity table in the Africa. The first and only one wind farm with generating capacity of 10.2 MW (consists 12 GAMESA G52-850 kW wind turbine) was installed in June 2014 by the national company Sonelgaz at Kabertene in Adrar province, which is situated in the southwestern part of the country (Fig. 1). This site is the most convenient place for wind farm installation because it is the windiest zone in Algeria with the annual average wind speed of about 6.3 m/s [5, 6]. Wind turbines are continuously subjected to varying dynamic (wind, sand, temperature variations, etc.) and gravitational loads [7]. As a result of these loads the wind turbine undergoes deformations and rigid body motions. The first can be divided into two types, a dynamic response and a quasi-static. The dynamic response of a wind turbine may be characterized by its modal parameters (natural frequencies, damping characteristics and mode shapes) [8, 9]. Modal analysis has the ability to determine these parameters allowing the tracking of small changes in these parameters over time. These changes may originate from characteristics of the loads, changes in mass distribution or damage to the structure Tower that carries the nacelle and the rotor is one of the key components and it represents beyond 20% of the total wind turbine cost. It is also the most critical component according to structural safety under aerodynamic loadings. Taking into consideration all this, optimal design of the tower structures (structural behavior) is of great importance related to the final cost of energy [14–16]. In a survey of technical literature, we see a great number of studies on wind turbine technology (horizontalaxis or vertical-axis) are focused on the aerodynamics and performance of wind turbines by using the experimental testing [17–19] and Computational Fluid Dynamics (CFD) numerical simulation [20–24]. In the recent years there has been increasing interest by the scientific community in the structural design behavior of wind turbines. Most of these studies focused on the structural design behavior (static and dynamic) either of the rotor blades [25–27] or of the single blades, which are independent of the rest of the structure [28–30].
On the other hand, many researchers in the wind energy have been interested in the response of the tower structure subjected to several dynamic loadings [31–36]. The objective of this paper is to investigate the dynamic behavior of an actual 55-m-high steel tower of 850 KW wind turbine (model G52/850 KW manufactured by Gamesa Company) when subjected to wind excitation by numerical modal analysis using three-dimensional (3D) Finite Element (FE) method. The analysis was conducted in order to evaluate natural frequencies, their corresponding mode shapes and mass participation ratios, and the suggestions to avoid resonance for tower structure. The material presented here is organized as follows: In Section 2, a description of the tower structure is presented. In Section 3, the Finite Element Method FEM simulations of the model are described.
II. LITRETURE REVIEW
III. METHODOLY
Water pumping and power generation through wind mills involve a systematic methodology to harness the kinetic energy of the wind efficiently. This process can be divided into several key steps.
Firstly, site selection is critical. Identifying a location with consistent and strong wind patterns is essential for optimal performance. Wind speed, direction, and turbulence must be carefully analyzed to ensure the wind mill operates effectively. Topographical features, such as hills or obstacles, can significantly impact wind flow and should be considered during site selection.
Once a suitable site is chosen, the next step is to select an appropriate wind mill design. Horizontal-axis wind turbines (HAWTs) and vertical-axis wind turbines (VAWTs) are common types. Factors like wind speed, energy output requirements, and environmental conditions influence the choice. Additionally, considering the landscape and community acceptance is crucial to address potential concerns.
The installation phase involves erecting the wind mill and configuring it for both water pumping and power generation. A tower of sufficient height is erected to capture higher wind speeds, and the turbine is positioned to face the prevailing wind direction.
Adequate safety measures must be implemented during installation.
For water pumping, a mechanical linkage between the wind mill and a pump is established. The rotational energy from the wind turbine is converted into mechanical energy to drive the pump, lifting water from a lower to a higher elevation. This is particularly useful in arid regions or areas without access to conventional power sources, providing a sustainable solution for irrigation or community water supply.
Simultaneously, power generation involves connecting the wind mill to a generator. The rotational motion of the turbine spins the generator's rotor, converting mechanical energy into electrical energy. An efficient power transmission system is essential to transfer the generated electricity to the intended destination, whether it be for local consumption or integration into the grid.
Regular maintenance is crucial to ensure the system's longevity and efficiency. Periodic checks on the turbine blades, gearbox, generator, and electrical components are necessary. Lubrication and replacement of worn-out parts should be carried out to prevent downtime and extend the lifespan of the equipment. Environmental impact assessments should be conducted to understand and mitigate any potential ecological consequences. Monitoring bird and bat interactions, noise levels, and visual aesthetics are essential aspects of responsible wind mill operation.
Lastly, community engagement and education are vital components of a successful wind mill project. Local residents should be informed about the benefits of wind energy, addressing any concerns they may have. Inclusion of the community in the decision-making process fosters acceptance and promotes sustainable development.
VI. MATERIAL SELECTION FOR WIND TURBINE
Selecting materials for wind turbines involves considering factors such as strength, durability, weight, cost, and environmental impact. Here's a detailed breakdown:
When selecting materials, engineers must also consider factors such as manufacturing processes, maintenance requirements, and end-of-life recyclability to ensure a sustainable and cost-effective solution. Additionally, advancements in materials science and technology continue to influence material selection, with an increasing emphasis on lightweight composites and recyclable materials to improve efficiency and reduce environmental impact.
the pump efficiently even in light winds. Additionally, variable pitch or adjustable blades can be used to optimize performance for both power generation and pumping, allowing the turbine to adapt to changing wind conditions.
The generator system is another important component of the design. For power generation, the turbine needs a generator capable of efficiently converting mechanical energy from the rotating blades into electrical energy. Permanent magnet generators are commonly used in small-scale wind turbines due to their high efficiency and compact size. However, for pumping applications, the generator needs to be able to provide mechanical power directly to the pump, either through a mechanical linkage or by using a hydraulic system. This requires careful design to ensure compatibility between the generator and the pump and to minimize energy losses in the transmission system.
In addition to the turbine and generator, the pump system must also be carefully designed. The pump needs to be able to lift water or perform other tasks efficiently while being driven by the turbine. Depending on the specific application, different types of pumps may be used, such as centrifugal pumps or positive displacement pumps. The pump system must also be designed to match the flow rate and pressure requirements of the application, which may require the use of variable speed drives or other control mechanisms to adjust the pump speed based on the available wind energy and the desired output.
Furthermore, the overall system design must take into account factors such as site conditions, wind patterns, and load requirements. The turbine should be positioned in a location with a consistent and strong wind resource to maximize energy production. Site-specific factors such as terrain and obstacles must also be considered to minimize turbulence and maximize the efficiency of the turbine. Additionally, the system must be able to withstand the forces exerted by high winds and other environmental factors to ensure reliable operation over the long term.
Overall, designing a wind turbine for both pumping and power generation requires a holistic approach that considers the specific requirements of each application and integrates them into a single, efficient system. By carefully optimizing the design of the turbine blades, generator system, pump system, and overall system configuration, it is possible to create a versatile and effective solution for harnessing wind energy for a variety of applications.
VII. RESULT
Windmills play a pivotal role in both water pumping and power generation, harnessing the kinetic energy of the wind to meet various human needs sustainably. In the context of water pumping, windmills have been employed for centuries to lift water from wells and aquifers, providing a reliable source of irrigation for agriculture and a consistent supply of water for communities in arid regions.
The basic principle behind a windmill for water pumping involves converting the rotational energy of the wind's force into mechanical energy to drive a pump. Traditional windmills, such as the iconic Dutch windmills, employ a system of blades connected to a central shaft. As the wind blows, it imparts rotational motion to the blades, which in turn rotate the shaft connected to a pump. This mechanical energy is then used to lift water from the ground or lower levels to the surface, making it accessible for agricultural activities or human consumption.
In recent times, modern wind turbines have emerged as efficient alternatives for water pumping. These turbines, equipped with advanced technology such as aerodynamic blades and electric generators, can harness wind power more effectively. The electricity generated can be used to power electric pumps, offering a more versatile and controllable means of water extraction. This modernization enhances the reliability and efficiency of water pumping systems, contributing to sustainable agriculture practices and water resource management.
Beyond water pumping, windmills are integral to power generation, producing clean and renewable energy. Wind turbines used for power generation are designed to capture the kinetic energy of the wind and convert it into electricity. The basic components include rotor blades, a generator, and a tower to support the structure. As the wind flows, the rotor blades rotate, driving the generator and producing electrical energy. This electricity can be integrated into the grid for general consumption or stored for later use.
The environmental benefits of wind power for electricity generation are significant. Unlike fossil fuel-based power generation, windmills produce electricity without emitting greenhouse gases, contributing to mitigating climate change. The renewable nature of wind energy ensures a sustainable and inexhaustible source of power. Additionally, wind power reduces dependence on finite fossil fuel resources, enhancing energy security and diversifying the energy mix.
One of the challenges faced by wind power is its intermittent nature. The wind doesn't always blow consistently, leading to fluctuations in power output. To address this, advancements in energy storage technologies, such as batteries, are being explored to store excess energy during windy periods for use when the wind is calm. Integrating wind power with other renewable sources in a hybrid energy system can also enhance overall reliability.
In conclusion, windmills serve a dual purpose in water pumping and power generation, leveraging the natural force of the wind to address essential human needs sustainably. From the traditional windmills used for water extraction to modern wind turbines contributing to the global transition to clean energy, these structures have evolved to meet the demands of society while minimizing environmental impact. As technology continues to advance, the efficiency and effectiveness of windmills for both water pumping and power generation will likely increase, further promoting a sustainable and greener future.
Designing a wind turbine for both pumping and power generation requires careful consideration of various factors to ensure efficiency and effectiveness in both functions. The turbine must be able to harness wind energy efficiently for power generation while also being capable of driving a pump to lift water or perform other tasks.
Firstly, the design of the turbine blades is crucial. Blades need to be aerodynamically optimized to capture as much wind energy as possible. For power generation, longer blades with a larger surface area are typically more effective at capturing wind energy. However, for pumping applications, shorter blades may be preferred to provide more torque at lower wind speeds, allowing the turbine to operate features such as remote monitoring and automated maintenance routines can enhance operational flexibility and reliability, particularly in remote or inaccessible locations.
In parallel, the power generation aspect of the windmill necessitates seamless integration with the electrical grid or standalone microgrid systems. This involves designing robust power electronics, transformers, and inverters to convert the variable AC output of the wind turbine into a stable, grid-compatible form. Additionally, implementing energy storage solutions such as batteries or capacitors can mitigate intermittency issues and ensure consistent power delivery, even during periods of low wind activity.
Environmental considerations are also integral to the design and fabrication process, with an emphasis on minimizing ecological impact and promoting sustainability. This encompasses factors such as wildlife protection, noise mitigation, and visual aesthetics, which influence site selection, turbine placement, and operational protocols. By adhering to environmental regulations and employing eco-friendly practices, the windmill project can coexist harmoniously with its surrounding ecosystem while contributing to global efforts to combat climate change.
In conclusion, the design and fabrication of a windmill for pumping and power generation represent a convergence of engineering ingenuity, environmental stewardship, and renewable energy innovation. By leveraging advanced technologies, interdisciplinary collaboration, and a commitment to sustainability, it is possible to create a robust, efficient, and environmentally responsible solution that addresses the pressing challenges of water access and energy security. Through continuous research, development, and optimization, the potential of wind energy can be fully realized, offering a sustainable pathway towards a cleaner, greener future for generations to come.
The design and fabrication of a windmill for pumping and power generation is a multidimensional endeavor, integrating engineering principles, environmental considerations, and technological innovations. Through meticulous planning, analysis, and implementation, a comprehensive solution can be developed to harness the renewable energy potential of wind while addressing the specific needs of pumping and power generation. First and foremost, the design phase involves understanding the local wind patterns, topography, and energy requirements. This necessitates thorough research and data collection to ascertain the optimal location, wind turbine type, and sizing for both pumping and power generation purposes. Additionally, considerations such as wind turbine efficiency, rotor design, and material selection play pivotal roles in maximizing energy extraction while ensuring durability and reliability. In the fabrication process, attention to detail and precision are paramount. Utilizing advanced manufacturing techniques and quality control measures, components such as turbine blades, tower structures, and electrical systems are constructed to exact specifications. Moreover, incorporating innovative materials and methodologies can enhance performance, reduce maintenance costs, and extend the operational lifespan of the windmill.
[1] Wind Power Plants: Fundamentals, Design, Construction and Operation, R. Gasch, J. Twele, et al., Springer Verlag, 2012
[2] Performance Test on Helical Savonius Rotor, S.B. Kedare, 2003.
[3] Wind Power Fundamentals: Alex Kalmikov and Katherine Dykes With contributions from: Kathy Araujo PhD Candidates, MIT Mechanical Engineering, Engineering Systems and Urban Planning MIT Wind Energy Group &Renewable Energy Projects in Action
[4] Wind pump handbook (pilot edition) prepared by S.K Tewari and R.P. Gupta, Tata Energy Research Institute, 1982.
[5] Thermodynamic and Transport Properties of Fluids SI Unitsarranged by G. F. C. Rogers and Y. R. Mayhew Fifth Edition Blackwell Publishing, 1995, Oxford, U.K.
[6] Water pumping design, NYANGASI, George Oduwo, 2012.
[7] Kenya Wind Atlas, Kenya Meteorological Department, 2010.
[8] Typical Microstructures of Cast MetalsG. Lambert, Ed, 2nd ed., The Institute of British Foundry men, 1996, p 47
[9] Energy and the Environment, Ristinen, Robert A., Jack J. Kraushaar, New York: John Wiley and Sons, Inc., 1999.
[10] College Physics: Second Edition,Urone, Paul P.,California: Brooks/Cole, 2001.
[11] Guided Tour on Wind Energy. 16 Oct. 2002
Copyright © 2024 Gai Ram Prasad, Thotameedi Rakesh, Bestha Shivaji, Eega Shiva Prasad, Santoosh Madeva Naik , P. Praveen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Paper Id : IJRASET59005
Publish Date : 2024-03-14
ISSN : 2321-9653
Publisher Name : IJRASET
DOI Link : Click Here