Sowing Wind Turbines for Reaping the Clean and Competitive Energy: A Renewable Free Energy Resource Able to Supplement Energy Needs of Bangladesh

1997 ◽  
Author(s):  
Md. Mesbah-ul Ghani Khan
Keyword(s):  
Wind Energy ◽  
Wind Power ◽  
Alternative Energy ◽  
Energy Resource ◽  
Water Desalination ◽  
Energy Deficit ◽  
Peak Demand ◽  
Mountainous Regions ◽  
Coastal Belt ◽  
Energy Needs

World is now endangered by the threat of fuel source scarcity and environmental degradation. Researchers all over the world are searching for the alternative energy resources to supplement the present energy needs and to conserve the conventional resources from depletion which are less costly and environmentally friendly. Harnessing the wind power and its utilization is one of the best possible answers. Investigations for recent years have revealed that wind energy has been the great deals to the rural farmers for their water pumping. Wind power can be used effectively in maintaining livestock, water supply, fish & ice farming, water desalination, sawing wood, irrigation, electrification, agricultural operations etc. If all possible considerations are given in exploiting wind energy, in the coming 4 to 5 decades it can meet 30% to 45% of the world’s total energy demand contributing no unwanted emissions into the atmosphere. It can adjust more jobs and occupies fewer lands. It is cheaper than any other sources. Bangladesh possesses flat terrain, hilly & mountainous regions, open river banks & harbors, and a vast lengthy coastal belt by the sea “the Bay of Bengal” where reasonable wind flow round the year available. For most of the said areas, electricity supply from the mother grid is almost inaccessible due to various difficulties and limitations. Moreover, a total of 2105 MW national generation capability absolutely unable to meet the present suppressed peak demand of 2114 MW for the consumers already in the grid. This continuously causing a severe regular load shedding up to 30% of the peak demand. The large sized population of the above areas is being maintained over decades mostly from fuel wood, charcoal plant & agricultural residues, dung and very few from imported petroleum and derivatives as the only energy sources. The energy scarcity let the locality remained economically backward and noncontributing to the GDP. In some of the areas namely Chittagong Harbor, Coastal belts & City periphery, from recent observations the monthly mean wind speeds (m/s) ranging between 4.5 and 8.5 are recorded which show the genius prospect of reaping wind power in Bangladesh. Despite a promising future of this free fuel, benefits for utilizing this energy in Bangladesh are being missed because too little is known about either the resource or the technology. Wind energy can successfully be utilized in utility for supplementing our generation and to meet decentralized needs or wind-solar hybrids for Bangladeshi modern multistory buildings which are now meeting their energy deficit by individual diesel generators at higher money and environmental costs. In the context of Bangladesh, wind power to come to use, this paper is an attempt to describe the methodologies for site selection; wind data collection & regime modeling; power availability, conversion & storage; turbine performance monitoring & augmenting wind speed using cloth scoops including costs and environmental impact Assessment. This paper also discusses Bangladesh energy scenario and strategies for meeting deficit demand and summarizes global wind development and proposes that Bangladesh government and other agencies must take immediate initiatives towards implementing wind projects.

scholarly journals Assessment of Wind Energy for Nevada Using Towers and Mesoscale Modeling

2007 ◽  
Author(s):  
Darko Koracin ◽  
Richard L. Reinhardt ◽  
Marshall B. Liddle ◽  
Travis McCord ◽  
Domagoj Podnar ◽  
...  
Keyword(s):  
High Resolution ◽  
Wind Energy ◽  
Wind Power ◽  
Power Density ◽  
Mesoscale Model ◽  
Horizontal Resolution ◽  
Mesoscale Modeling ◽  
Annual Cycles ◽  
Wind Power Density ◽  
Mountainous Regions

The main objectives of the study were to support wind energy assessment for all of Nevada by providing two annual cycles of high-resolution mesoscale modeling evaluated by data from surface stations and towers, estimating differences between these annual cycles and standard wind maps, and providing wind and wind power density statistics at elevations relevant to turbine operations. In addition to the 65 existing Remote Automated Weather Stations in Nevada, four 50-m-tall meteorological towers were deployed in western Nevada to capture long-term wind characteristics and provide database input to verify and improve modeling results. The modeling methodology using Mesoscale Model 5 (MM5) was developed to provide wind and wind power density estimates representing mesoscale effects that include actual synoptic forcing during the two annual cycles (horizontal resolution on the order of 2 and 3 km). The results from the two annual simulation cycles show similar wind statistics with an average difference of less than 100 W/m2. The available TrueWind results for the wind power density at 50 m show greater values of wind power density compared to both MM5-simulated annual cycles for most of the area. However, mainly in the Sierras and the mountainous regions of southern and eastern Nevada, the MM5 simulations indicate greater values for wind power density. The results of this study suggest that the synthesis of the data from a network of tower observations and high-resolution mesoscale modeling is a crucial tool for assessing the wind power density in Nevada and, more generally, other topographically developed areas.

Wind Potential Assessment for the Utilization from Wind Energy in the Household Level: A Case Study of Nakhonratchasima Thailand

2016 ◽  
Vol 835 ◽  
pp. 749-752
Author(s):  
Yuttachai Keawsuntia
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Alternative Energy ◽  
Energy Resource ◽  
Energy Utilization ◽  
Distribution Method ◽  
Household Level ◽  
Wind Speed Data ◽  
Wind Potential

Wind energy is an important alternative energy resource because of it clean, does not cause pollution and it can be used as replacement of a fossil fuel energy. Utilization of the wind energy, the wind speed data has to be analyzed to make sure before use it. In this article is to present the wind speed data analysis by using Weibull distribution method. Wind speed data from the meteorological station at Pakchong district, Nakhonratchasima province, Thailand was used as the case study. The results show that this area has wind speed about 2.5 to 3.5 m/s. The average wind power density was 17.513 W/m2 and the total wind energy was 153.9819 kW·hr/m2 per year. This wind potential of this area can be used for water pumping and electricity generating for use in a household.

The Overview of the Development of Wind Energy

2014 ◽  
Vol 552 ◽  
pp. 107-110
Author(s):  
Xue Song Zhou ◽  
Hui Min Guo ◽  
You Jie Ma
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Wind Power ◽  
Alternative Energy ◽  
Power Market ◽  
High Energy ◽  
General Development ◽  
Wind Power Industry ◽  
High Level ◽  
Energy Converting

In the field of renewable energy, wind energy has one of the best prospects in all industries. It is a kind of clean, practical, economic and environmentally friendly alternative energy. It also has the advantages of high energy converting rate, large industrial scale、high level technology and so on. Thus in recent years, the developing trend of global wind power industry is rapid, and the growth tide of China has been enhanced significantly. This paper discusses the general development of wind power. Based on the overview of the development of wind energy and combined with the current situation of wind power market, the development trends of wind turbine were discussed. It also proposed the problems which were existed in domestic wind power market.

Computer-aided engineering analysis of tooth-bending fatigue-based failure in horizontal-axis wind-turbine gearboxes

2014 ◽  
Vol 5 (1) ◽  
pp. 60-82 ◽  
Author(s):  
M. Grujicic ◽  
S. Ramaswami ◽  
J.S. Snipes ◽  
R. Galgalikar ◽  
V. Chenna ◽  
...  
Keyword(s):  
Service Life ◽  
Wind Energy ◽  
Wind Turbine ◽  
Alternative Energy ◽  
Life Assessment ◽  
Horizontal Axis Wind Turbine ◽  
Premature Failure ◽  
Content Type ◽  
Bending Fatigue ◽  
Energy Needs

Purpose – Wind energy is one of the most promising and the fastest growing alternative-energy production technologies, which have been developed in response to stricter environmental regulations, the depletion of fossil-fuel reserves, and the world's ever-growing energy needs. This form of alternative energy is projected to provide 20 percent of the US energy needs by 2030. For economic reasons, wind turbines (articulated structures that convert wind energy into electrical energy) are expected to operate, with only regular maintenance, for at least 20 years. However, some key wind turbine components (especially the gearbox) tend to wear down, malfunction and fail in a significantly shorter time, often three to five years after installation, causing an increase in the wind-energy cost and in the cost of ownership of the wind turbine. Clearly, to overcome this problem, a significant increase in long-term gearbox reliability needs to be achieved. Design/methodology/approach – While purely empirical efforts aimed at identifying shortcomings in the current design of the gearboxes are of critical importance, the present work demonstrates that the use of advanced computational engineering analyses, like the finite-element stress analysis and a post-processing fatigue-life assessment analysis, can also be highly beneficial. Findings – The results obtained in the present work clearly revealed how a variety of normal operating and extreme wind-loading conditions can influence the service-life of a wind-turbine gearbox in the case when the service-life is controlled by the gear-tooth bending-fatigue. Originality/value – The present work attempts to make a contribution to the resolution of an important problem related to premature-failure and inferior reliability of wind-turbine gearboxes.

scholarly journals On the Wind Energy Resource and Its Trend in the East China Sea

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Adekunle Ayodotun Osinowo ◽  
Xiaopei Lin ◽  
Dongliang Zhao ◽  
Kaiwen Zheng
Keyword(s):  
Wind Energy ◽  
Wind Power ◽  
East China Sea ◽  
Large Scale ◽  
Energy Resource ◽  
East China ◽  
The East China Sea ◽  
Medium Range Weather Forecast ◽  
China Sea ◽  
Wind Potential

This study utilizes a 30-year (1980–2009) 10 m wind field dataset obtained from the European Center for Medium Range Weather Forecast to investigate the wind energy potential in the East China Sea (ECS) by using Weibull shape and scale parameters. The region generally showed good wind characteristics. The calculated annual mean of the wind power resource revealed the potential of the region for large-scale grid-connected wind turbine applications. Furthermore, the spatiotemporal variations showed strong trends in wind power in regions surrounding Taiwan Island. These regions were evaluated with high wind potential and were rated as excellent locations for installation of large wind turbines for electrical energy generation. Nonsignificant and negative trends dominated the ECS and the rest of the regions; therefore, these locations were found to be suitable for small wind applications. The wind power density exhibited an insignificant trend in the ECS throughout the study period. The trend was strongest during spring and weakest during autumn.

A Research on the Application and Calculation of Wind Energy

2013 ◽  
Vol 744 ◽  
pp. 556-560 ◽  
Author(s):  
Song Zhou ◽  
Cai Ling Li ◽  
Ye Han
Keyword(s):  
Wind Energy ◽  
Alternative Energy ◽  
Waste Heat ◽  
Energy Resource ◽  
Environment Protection ◽  
Energy Technologies ◽  
New Energy ◽  
Basic Features ◽  
Alternative Energies ◽  
Maritime Environment

Nowadays, due to the serious shortage of energy resource, the research and application of new alternative energy has become an important task for each country and government all over the world. In order to protect environment and raise the utilization of marine power, Maritime Environment Protection Committee (MEPC) of International Maritime Organization (IMO) encouraged ship operators to use new alternative energies to reduce marine CO2 emission. Currently, marine new energy technologies mainly include solar energy, wind energy, waste heat recovery and biological substitute fuel. Wind energy, as a clean and easy getting energy, has been paid a high attention to. This paper mainly introduces the basic features and calculation of wind energy, and then put forwards some shortcomings in the application of it on the ships.

scholarly journals The Wind Forecast Improvement Project (WFIP): A Public–Private Partnership Addressing Wind Energy Forecast Needs

2015 ◽  
Vol 96 (10) ◽  
pp. 1699-1718 ◽  
Author(s):  
James Wilczak ◽  
Cathy Finley ◽  
Jeff Freedman ◽  
Joel Cline ◽  
Laura Bianco ◽  
...  
Keyword(s):  
Wind Energy ◽  
Wind Power ◽  
Prediction Models ◽  
Weather Prediction ◽  
Substantial Reduction ◽  
Energy Resource ◽  
The United States ◽  
Department Of Energy ◽  
Improvement Project ◽  
Forecast Models

Abstract The Wind Forecast Improvement Project (WFIP) is a public–private research program, the goal of which is to improve the accuracy of short-term (0–6 h) wind power forecasts for the wind energy industry. WFIP was sponsored by the U.S. Department of Energy (DOE), with partners that included the National Oceanic and Atmospheric Administration (NOAA), private forecasting companies (WindLogics and AWS Truepower), DOE national laboratories, grid operators, and universities. WFIP employed two avenues for improving wind power forecasts: first, through the collection of special observations to be assimilated into forecast models and, second, by upgrading NWP forecast models and ensembles. The new observations were collected during concurrent year-long field campaigns in two high wind energy resource areas of the United States (the upper Great Plains and Texas) and included 12 wind profiling radars, 12 sodars, several lidars and surface flux stations, 184 instrumented tall towers, and over 400 nacelle anemometers. Results demonstrate that a substantial reduction (12%–5% for forecast hours 1–12) in power RMSE was achieved from the combination of improved numerical weather prediction models and assimilation of new observations, equivalent to the previous decade’s worth of improvements found for low-level winds in NOAA/National Weather Service (NWS) operational weather forecast models. Data-denial experiments run over select periods of time demonstrate that up to a 6% improvement came from the new observations. Ensemble forecasts developed by the private sector partners also produced significant improvements in power production and ramp prediction. Based on the success of WFIP, DOE is planning follow-on field programs.

scholarly journals Evaluation of Wind Energy Potential in Rayong Province, Thailand by WAsP Program

2021 ◽  
Vol 83 (2) ◽  
pp. 1-13
Author(s):  
Watchara Saeheng ◽  
Piyanut Saengsikhiao ◽  
Juntakan Taweekun
Keyword(s):  
Wind Energy ◽  
Wind Power ◽  
Alternative Energy ◽  
Average Power ◽  
Cost Effective ◽  
Ground Level ◽  
Energy Potential ◽  
Annual Average ◽  
Wind Speeds ◽  
Wind Potential

Over the past decades, Wind energy is one of the alternative energy or renewable sources, which has been harvested to produce electricity. Our research aims to study the wind potential of the areas in the Rayong provinces of Thailand. Data from meteorological stations were collected every 10 minutes for of 3 years (2017-2019), with a measuring tower at 10-meter height above ground level (AGL). The annual average wind speeds were investigated in Rayong (2.02 m/s) with Weibull Probability Distribution Function (PDF). The annual average power density in Rayong regions was 13 W/m2. In all locations, wind direction was detected mainly from Southwest (SSW) and the yearly maximum wind power capacity is 94.376 MWh. The capacity factor of 21.5 % was noticed. With relatively low wind speed was noticed in Rayong provinces of Thailand, a small wind turbine installed at 30 meters would be recommended as a cost-effective way to convert wind power to electricity.

Characteristics and Perspectives of Wind Energy in Morocco

2008 ◽  
Vol 32 (5) ◽  
pp. 449-458 ◽  
Author(s):  
H. Nfaoui ◽  
H. Essiarab ◽  
A. Sayigh
Keyword(s):  
Wind Energy ◽  
Alternative Energy ◽  
Energy Resource ◽  
Geographic Location ◽  
Energy Resources ◽  
Electricity Production ◽  
Promising Alternative ◽  
Capital Costs ◽  
The North ◽  
Wind Potential

Morocco depends on 85% foreign sources of its energy supply. The oil invoice accounts for nearly 22.3% income from exports. In Morocco, the use of wind energy began before 1930, through the importation of windmills from USA by the French colony, to pump water for livestock and population in the country. An estimated 1000 of these units were in use in Morocco [1]. Following the rising price of oil after the first oil-price shock in the early 1970s, the days of cheap and plentiful petroleum were drawing to an end. Morocco began to promote and develop renewable energy mainly solar energy. Wind energy is the most promising alternative energy resource in Morocco because of its good geographic location (3446 km of coast, Straits of Gibraltar, Rif and Atlas Mountain at 4167 metres and the Taza corridor) which permits Morocco to have available the largest wind potential in the North Africa. At 10 m, the annual mean wind speed can reach 11m/s in the Tetouan region and 8 m/s in the Dakhla site. The Moroccan wind potential is estimated at 21,000MW. In the framework of diversification of national energy resources, various actions have been taken for the use of wind energy as a national energy resource. It is mainly about: Since wind energy is economic on windy sites and the capital costs are continue to decline with the move to larger wind turbines [2,3], the Moroccan government has set a target of achieving 20% of its electricity supply from wind energy by 2020. It has started to pay attention to developing its indigenous wind energy resources and has encouraged wind technology transfer from other countries. On top of that, wind energy could have a significant and beneficial impact on the environment, particularly with regard to the greenhouse effect. - Diversifying the actors, both public and private, - Concluding consessional contracts between the National Office of Electricity (ONE) and private electricity producers using wind energy to satisfy theirs own needs, - Increasing the autoproduction threshold to 50MW with the aim of installing 1000MW by modifying the laws governing the electricity production.

Wind Energy Resource Assessment for Wind Farm

2011 ◽  
Vol 130-134 ◽  
pp. 1295-1297
Author(s):  
Hui Qun Ma ◽  
Qi Feng Wang
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Weibull Distribution ◽  
Wind Power ◽  
Wind Farm ◽  
Energy Resource ◽  
Resource Assessment ◽  
Important Process ◽  
Wind Resources ◽  
Resources Assessment

In feasible research of wind farm construction, wind resources assessment is an important process. The grade of wind resources is the crucial qualification in the construction. It determines whether this wind farm is profitable or not. his paper introduces the theory of wind energy resource assessment firstly, including: wind power density, wind speed correction and Weibull distribution. Then take Yishui wind farm as example to calculate the wind energy resource assessment.

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