Neil Kelley 风能咨询气象专家。 年龄应该有70多岁,2011年获得 NREL Chairman's Outstanding Achievement Award。 他的研究主要包括大气湍流对风机结 构 的影 响和风机低频噪声的产生等方面。作为一名将大气科学有关的知识应用于风力发电研究的气象专家, 从1980年代开始(属于 最早 一批气象 领域做风能应用研究的人),持续几十年一直研究与风能应用有关的问题, 是我的楷模。 Neil Kelley's Education Penn State University Ph.D Candidate , Meteorology 1968–1971 Penn State University M.S. , Meteorology 1965–1968 St. Louis University B.S. in Professional Meteorology , Meteorology 1959–1963 Neil Kelley's Publications Turbulence-Turbine Interaction: The Basis for the Development of the TurbSim Stochastic Simulator National Renewable Energy Laboratory, NREL/TP-5000-52353 November 2011 Authors: Neil Kelley A combination of taller wind turbines with more flexible rotors and towers operating in turbulent conditions that are not well understood is contributing to much higher than anticipated maintenance and repairs costs and is associated with lower energy production. This report documents evidence of this and offers the turbine designers an expanded tool that resolves many of these shortcomings. It... more Overview of the TurbSim Stochastic Inflow Turbulence Simulator: Version 1.21 (Revised Feb 1, 2007) National Renewable Energy Laboratory, NREL/TP-500-41137 April 2007 Authors: Neil Kelley , Bonnie J. Jonkman The TurbSim stochastic inflow turbulence simulator was developed to provide a numerical simulation of a full-field inflow to a wind turbine that contains bursts of coherent turublence seen in atmospheric instabilties associated with nocturnal boundary layer flows. This document provides the user with a generalized overview of how the code was developed and some of the theory behind it. Comparing Pulsed Doppler LIDAR with SODAR and Direct Measurements for Wind Assessment National Renewable Energy Laboratory, NREL/TP-500-41192 July 2007 Authors: Neil Kelley , Bonnie J. Jonkman, George N. Scott, Yelena L. Pichugina There is a pressing need for good wind-speed measurements at greater and greater heights to assess the availability of the resource in terms of power production and to identify any frequently occurring atmospheric structural characteristics that may create turbulence that impacts the operational reliability and lifetime of their components. This paper summarizes the results of a short study that... more The Great Plains Turbulence Enviroment: Its Origins, Impact, and Simulation National Renewable Energy Laboratory, NREL/TP-500-40176 December 2006 Authors: Neil Kelley , Bonnie J. Jonkman, George N. Scott This paper summarizes the known impacts of nocturnal turbulence on wind turbine performance and operations and discusses NREL's progress in numerically simulating coherent inflow turbulent conditions generated by atmospheric instabilities that are frequently associated with a Great Plains nocturnal low-level jet stream. The Impact of Coherent Turbulence on Wind Turbine Aeroelastic Response and Its Simulation National Renewable Energy Laboratory, NREL/TP-500-41192 August 2005 Authors: Neil Kelley , Bonnie J. Jonkman, George N. Scott, Jan T. Bialasiewicz, and Lisa S. Redmond In this paper, we present a brief overview of our recent research results regarding the impact of organized or coherent inflow turbulence on the dynamic response of operating wind turbines. Previous field measurements has demonstrated that the greatest structural fatigue tends to occur during the nighttime hours from coherent turbulence that develops in the stable, nocturnal atmospheric boundary... more Using Wavelet Analysis to Assess Turbulence/Rotor Interactions Wind Energy, Vol. 3., No. 3 2000 Authors: Neil Kelley , Richard M. Osgood, Jan T. Bialasiewicz Large loading events on wind turbine rotor blades are often associated with transient bursts of coherent turbulent energy in the turbine inflow. These coherent turbulent structures are identified as peaks in the three-dimensional, instantaneous, turbulent shearing stress field. Such organized inflow structures and the accompanying rotor aeroelastic responses typically have timescales of only a few... more Using Time-Frequency and Wavelet Analysis to Assess Turbulence/Rotor Interactions National Renewable Energy Laboratory, NREL/CP-500-32242 2000 Authors: Neil Kelley , Richard M. Osgood, Jan T. Bialasiewicz, Andre Jakubowski Large loading events on wind turbine rotor blades are often associated with transient bursts of coherent turbulent energy in the turbine inflow. These coherent turbulent structures are identified as peaks in the three-dimensional, instantaneous, turbulent shearing stress field. Such organized inflow structures and the accompanying rotor aeroelastic responses typically have time scales of only a... more A Case for Including Atmospheric Thermodynamic Variables In Wind Turbine Fatigue Loading Parameter Identification National Renewable Energy Laboratory, NREL/CP-500-26829 July 1999 Authors: Neil Kelley This paper makes the case for establishing efficient predictor variables for atmospheric thermodynamics that can be used to statistically correlate the fatigue accumulation seen on wind turbines. Recently, two approaches to this issue have been reported. One uses multiple linear-regression analysis to establish the relative causality between a number of predictors related to the turbulent inflow... more A Progress Report on the Characterization and Modeling of a Very Flexible Wind Turbine Design National Renewable Energy Laboratory, NREL/CP-500-25513 October 1998 Authors: Neil Kelley , Alan Wright, Richard Osgood In this paper we discuss a few early results from our recently completed field measurement effort. We found that the turbine rotor response was dominated by a once per-revolution oscillation that was responsible for large cyclic variations in the output power. The available evidence points to a rotor imbalance related to structural differences in one of the blades and a misalignment of the pitch... more Long-Term Simulation of Turbulence-Induced Loads Using the SNLWIND-3D, FAST, YawDyn, and ADAMS(TM) Numerical Codes American Institute of Aeronautics Astronautics January 9, 1997 Authors: Neil Kelley , Alan Wright, Marshall Buhl, James Tangler Collection of the 1997 ASME Wind Energy Symposium Technical Papers Presented at the 35th AIAA Aerospace Sciences Meeting and Exhibit, 6-9 January 1997, Reno, Nevada. Washington, DC: American Institute of Aeronautics and Astronautics pp. 74-85; NREL Report No. 23277. Damage Estimates from Long-Term Structural Analysis of a Wind Turbine in a U.S. Wind Farm Environment American Institute of Aeronautics Astronautics January 9, 1997 Authors: Neil Kelley , Herbert Sutherland Collection of the 1997 ASME Wind Energy Symposium Technical Papers Presented at the 35th AIAA Aerospace Sciences Meeting and Exhibit, 6-9 January 1997, Reno, Nevada. Washington, DC: American Institute of Aeronautics and Astronautics pp. 74-85; NREL Report No. 23277. Observed Acoustic and Aeroelastic Spectral Responses of a MOD-2 Turbine Blade to Turbulence Excitation DOE/NASA 1995 Authors: Neil Kelley , Ed McKenna, Eric Jacobs Spera, D. A., ed. Collected Papers on Wind Turbine Technology. DOE/NASA/5776-2. pp. 221-227; NREL Report No. 20614 Lamar Low-Level Jet Project: Interim Report National Renewable Energy Laboratory, NREL/TP-500-34593 January 2004 Authors: Neil Kelley , Mari Shirazi, David Jager, Scott Wilde, James Adams, Marshall Buhl, Peter Sullivan, Ned Patton This interim report presents the results to date from the Lamar Low-Level Jet Program (LLLJP) that has been established as a joint effort between the U.S. Department of Energy (DOE), the National Wind Technology Center (NWTC) of the National Renewable Energy Laboratory (NREL), and General Electric Wind Energy (GE Wind). The purpose of this project was to develop an understanding of the influence... more Discussion of the Results of the Rainflow Counting of a Wide Range of Dynamics Associated with the Simultaneous Operation of Adjacent Wind Turbines Windpower '92: Proceedings of the American Wind Energy Association Conference, 19-23 October 1992, Seattle, Washington October 1993 Authors: Neil Kelley , Gary Desrochers, James Tangler, Brian Smith The comparison of the rainflow fatigue counting results from structural measurements on two adjacent 65-kW wind turbines at Row 37 in a 41-row wind farm in Southern California Full Vector (3-D) Inflow Simulation in Natural and Wind Farm Environments Using An Expanded Version of the SNLWIND (Veers) Turbulence Code National Renewable Energy Laboratory, NREL/TP-442-5225 November 1992 Authors: Neil Kelley Recent measurements have indicated that the temporal and spatial coherence of the inflow turbulence may be associated with many of the observed extreme structural oad events. Several such extreme structural and peak power episodes have been traced to periods when the turbine rotor encountered patches of coherent turbulence. These coherent structures are identified by short-lived excursions in the... more Comparison of Predicted and Observed Turbulent Wind Fields Present in Natural and Internal Wind Park Environments National Renewable Energy Laboratory, NREL/TP-257-4508 September 1991 Authors: Neil Kelley , Alan Wright American Wind Energy Association, Windpower '91 Conference and Exposition, Palm Springs, California, 24-27 September, 1991 Discussion of the Results of an In-Situ Comparison of Three Full-Vector Anemometers National Renewable Energy Laboratory, NREL/TP-257-4019 1990 Authors: Neil Kelley , George Scott, Jack Allread for the 7th Symposium on Meterological Observations and Instrumentation, American Meteorological Society 71st Annual Meeting, 13-18 January 1991, New Orleans, Louisiana An Initial Look at the Dynamics of the Microscale Flow Field within a Large Wind Farm in Response to Variations in the Natural Inf National Renewable Energy Laboratory, NREL/TP-257-3591 1989 Authors: Neil Kelley Prepared for the American Wind Energy Association Wind Power '89 Conference and Exposition, San Francisco, California, 24-27 September 1989 The MOD-2 Wind Turbine: Aeroacoustical Noise Sources, Emissions, and Potential Impact Solar Energy Research Insitutute (now NREL) SERI/TR-217-3036 January 1988 Authors: Neil Kelley , Edward McKenna, Eric Jacobs, Robert Hemphill, Nancy Birkenheuer This report summarizes research into characteristics of acoustic noise emissions of the 2.5 MW DOE/NASA MOD-2 wind turbine. The results of this study showed that the MOD-2 noise levels are well below annoyance thresholds within residential structures a kilometer or more from the turbine rotor. It was also found that the inflow turbulent structure has a major influence on the level and... more A Proposed Metric for Assessing the Potential of Community Annoyance from Wind Turbine Low-Frequency Noise Emissions Solar Energy Research Insitutute (now NREL) SERI/TR-217-3261 November 1987 Authors: Neil Kelley Given our initial experience with the low-frequency, impulsive noise emissions from the MOD-1 wind turbine and their impact on the surrounding community, the ability to assess the potential of interior low-frequency annoyance in homes located near wind turbine installations may be important. Since there are currently no universally accepted metrics or descriptors for. Iow-frequency community... more Acoustic Noise Associated with the MOD-1 Wind Turbine: Its Source, Impact, and Control Solar Energy Research Insitutute (now NREL) SERI/TR-635-1166 February 1985 Authors: Neil Kelley , Edward McKenna, Robert Hemphill, Carol Etter, Richard Garrelts, N. Linn This document summarizes the results of an extensive investigation into the factors surrounding noise complaints related to the operation of the 2-MW DOE/NASA wind turbine installed atop Howard's Knob near Boone, North Carolina Observed Acoustic and Aeroeleastic Spectral Responses of a MOD-2 Turbine Blade to Turbulence Excitation National Renewable Energy Laboratory, NREL/TP-214-2374 1984 Authors: Neil Kelley , Edward McKenna, Eric Jacobs This document summarizes the results of an extensive investigation into the factors relating to the acoustic emissions associated with the operation of a MOD-2 wind turbine. Three of the turbines used for the work reported here were located at the Goodnoe Hills Wind Turbine Site near Goldendale, WA. Acoustic Ranging Technique for Assessing Low-Frequency Acoustic Noise from Wind Turbines Wind Engineering, Vol. 8 (1), pp. 19-22 1984 Authors: Neil Kelley , Robert Hemphill 以上内容,主要参考来自http://www.linkedin.com/pub/neil-kelley/13/888/b58
风力发电致夜间气温上升 夜间,风力涡轮机产生的大气湍流会搅动温暖的空气向下流动,从而将地面加热。 图片来源:Leaflet/Wikipedia 一项最新的研究表明,大型的风力发电场能在很大程度上,尤其是通过增加夜间的温度,来影响当地的气候。 利用和在辨别城市热岛区的温度变化趋势时所采用的相同的分析技术,研究人员仔细观察了得克萨斯州中西部一万平方公里区域的卫星图像。该地区囊括了全球最大风力发电场之列中的四个(图为得克萨斯州弗卢万纳县附近的涡轮机)。 研究团队的分析显示,该区域超过95%的涡轮机在2003~2011年的九年时间里建立起来。其间,设置了风力发电场的地区在夏季的几个月中,夜晚的平均地面气温,要比附近没有风力涡轮机的地区,增加了0.65℃。 在夜间,当地面的空气要比几十米高处的空气凉爽时,由风力涡轮机产生的大气湍流会搅动温暖的空气向下流动,从而将地面加热。4月29日,研究团队在英国《自然—气候变化》杂志上在线报道了此项发现。 这是第一个基于卫星数据而非计算机模拟来揭示气温上升机制的研究。研究中所测量的变暖速率很高,而原因则很简单:过去的几年中,该地区曾经历了风力发电场发展的一个快速上升期。 研究人员表示,如果不再有更多的涡轮机的增加,任何一个已经建立的风力发电场所带来的变暖效应将很有可能趋向稳定。(来源:中国科学报 闫洁) Impacts of wind farms on land surface temperature renchunxiao 添加于 2012-5-2 10:44:05 41次阅读 | 0次推荐 | 0个评论 The wind industry in the United States has experienced a remarkably rapid expansion of capacity in recent years and this fast growth is expected to continue in the future1, 2, 3. While converting wind’s kinetic energy into electricity, wind turbines modify surface–atmosphere exchanges and the transfer of energy, momentum, mass and moisture within the atmosphere4, 5, 6. These changes, if spatially large enough, may have noticeable impacts on local to regional weather and climate. Here we present observational evidence for such impacts based on analyses of satellite data for the period of 2003–2011 over a region in west-central Texas, where four of the world’s largest wind farms are located7. Our results show a significant warming trend of up to 0.72°C per decade, particularly at night-time, over wind farms relative to nearby non-wind-farm regions. We attribute this warming primarily to wind farms as its spatial pattern and magnitude couples very well with the geographic distribution of wind turbines. 作 者: Liming Zhou, Yuhong Tian, Somnath Baidya Roy, Chris Thorncroft, Lance F. Bosart Yuanlong Hu 期刊名称: nature climate changes 期卷页: 第卷 第期 ~页 学科领域: 地球科学 大气科学 应用气象学 添加人是否为作者: 否 原文链接: http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate1505.html DOI: