新疆达坂城风力发电基地

新疆是中国风能资源最丰富的省区之一。我国越来越多的能源企业把目光投向风能资源的开发与利用，新疆作为我国风力资源最丰富、较早开发风能的地区之一，正在成为我国风能开发的热点。     

对我国沿海风能资源开发利用的思考

我国沿海地区具有丰富的风能资源，开发前景十分广阔，是打造“海上三峡”新能源基地的希望所在。分析了沿海风能资源的察赋，指出了我国沿海岸区是建立大型风力发电场的理想之地，在此基础上提出发展我国沿海绿色能源基地的构想。     

辽宁锦州藏东地区风能资源评价

风能是一种无污染的可再生能源，取之不尽，用之不竭。为了研究辽宁锦州藏东地区风能资源情况，使用藏东风电场2000年7月—2001年6月的测风资料，对风电场的风能资源各参数进行了详细地计算和分析，从而得出藏东地区风能资源丰富，适宜建设大型风电场，具有较大的开发利用价值。     

安徽:低风速下的“十二五”答卷

正作为一个内陆省份,因受到地理位置的限制,安徽省属于低风速区,风能资源并不丰富。尽管安徽省风电产业起步较迟,但是通过后发优势,在"十二五"期间,安徽省风电开发和利用还是取得了很好的成绩,展现出强劲而稳定的发展势头。并不丰富的风能资源作为一种清洁能源,风能资源的开发与利用具有显著的经济、社会和生态环境效益。在中国气象局的统一部署下,安徽省气象局于2008年1月正式启动了"安徽省风能资源详查和评价"项目。     

风力发电的安徽步伐

正今年4月初,甘肃省千亿风电基地停摆的新闻迅速占据了舆论的制高点。一瞬间,"弃风限电"再次成为社会关注的热点。人们不禁要问,中国的风力发电到底是怎么了?一个不争的事实是,风能是一种清洁、绿色的可再生能源。开发风电对于解决能源危机、调整能源结构、减少环境污染等都有着非常重要的意义。开发和利用风能资源,大力发展新能源已经上升到国家战略层面。安徽省作为一个内陆省份,尽管属于低风速区域,风能资源并不丰富,但是,安     

江苏沿海风能资源禀赋与开发利用研究

江苏沿海地区拥有丰富的风能资源,开发前景十分广阔,尤其是中部、南部地区拥有广阔的沿海滩涂和辐射沙洲,建设沿海风电场的条件优越,是打造江苏"海上三峡"新能源基地的希望所在。阐述了江苏沿海风能资源开发的重要意义,分析了沿海风能资源的禀赋与时空分布特点,指出江苏沿海岸区风能资源丰富,且沿海滩涂宽广,是建立大型风力发电场的理想之地,在此基础上提出发展江苏沿海绿色能源基地的构想。     

风力发电对青海生态环境的影响

根据青海省风能资源及生态环境的现状,结合省内实际情况,指出了风力发电对生态环境带来的影响。     

对我区土地资源可持续利用的一点思考

通过对土地资源可持续利用意义的分析，结合我区土地资源利用的现状，阐述我区土地资源利用面临的各种问题及解决的方法，提出一些急需解决的理论问题及实际工作中面临的难题；同时也提出了一些解决问题的对策和土地可持续利用的思路。     

基于CALMET对复杂地形下风场的模拟研究

文章介绍了CALMET模拟风场的基本原理,对资料的选用及参数的设置进行了阐述,并对其在复杂地形及下垫面条件风场的模拟进行了应用研究。模拟结果对了解区域风场特点,合理规划布局,掌握污染扩散特点,科学利用风能资源有着重要的意义。     

中国风能利用现状、制约因素及未来发展

随着化石能源的不断消耗和对全球环境状况的日益关注,风能的开发利用引起了世界各国的重视.中国的风能资源丰富,目前中国风电技术的开发利用取得了巨大进步,风电发电量、装机容量和风电场数量位居世界前列.但中国的风能资源开发利用仍然存在诸多问题,如风电的并网消纳难、电力市场不完善、相关配套法规不健全和风机制造技术基础薄弱等,这些制约因素严重阻碍了我国风电的可持续发展,必须采取相关对策加以解决.     

Optimization of a Wind/PV Hybrid Power Generation System

This study investigates the wind and solar electricity generation availability at the Solar Energy Institute of Ege University, Izmir, Turkey. The main purpose of this study is to design an appropriate wind-PV hybrid system to cover the electricity consumption of the Institute. In order to do this, monthly average solar irradiation and wind speed data are used, which were measured, consisting of hourly records over an eight-year period from 1995–2002. Simple models were developed to determine wind, solar, and hybrid power resources per unit area. Correlations between the solar and wind power data were carried out on an hourly, daily, and monthly basis. It is shown that the hybrid system can be applied for the efficient and economic utilization of these resources.     

中国能源安全及其资源开发与利用的策略研究

通过采用“霍夫曼系数”的分析方法,提出能源危机是国家在工业化过程中的必经阶段,并从资源经济理论角度认识我国经济增长对资源消耗的关系,剖析国际能源危机背景与经济格局的成因。中国目前和今后主要受制于国内资源不足,要应对能源危机,只有实现多元化的策略,才能保障能源的供应,实现我国经济社会和谐、稳定、可持续发展。因此,能源资源开发与利用策略的研究具有极其重要的现实意义。     

Energy Supply Potentials and Needs, and the Environmental Impact of their Use in Sudan

Sudan is an agricultural country with fertile land, plenty of water resources, livestock, forestry resources, and agricultural residues. An overview of the energy situation in Sudan is introduced with reference to the end uses and regional distribution. Energy sources are divided into two main types; conventional energy (biomass, petroleum products, and electricity); and non-conventional energy (solar, wind, hydro-electricity, etc.). Sudan possesses a relatively high abundance of solar radiation, and moderate wind speeds, hydro, and biomass energy resources. The application of the new and renewable sources of energy available in Sudan is now a major issue in future energy strategic planning and for an alternative to fossil conventional energy. Sudan is an important case study in the context of renewable energy. It has a long history of meeting its energy needs through renewables. Sudan's renewables' portfolio is broad and diverse, due in part to the country's wide range of climates and landscapes. Like many of the African leaders in renewable energy utilization, Sudan has a well-defined commitment to continue research, development, and implementation of new technologies. Sustainable low-carbon energy scenarios for the new century emphasize the untapped potential of renewable resources. Rural areas of Sudan can benefit from this transition. The increased availability of reliable and efficient energy services stimulates new development alternatives. It is concluded that renewable, environmentally friendly, energy must be encouraged, promoted, invested, implemented, and demonstrated by full-scale plants, especially for use in the remote rural areas of Sudan.     

An investigation of renewable resources and renewable technology applications in Bulgaria

A preliminary assessment of renewable energy resources in Bulgaria shows that these resources are significant on a national level. Terminology for total, accessible, and reserve resources is provided, and preliminary estimates for solar, wind, biomass, hydroelectric, and geothermal resources are given. The process used to make a first-level selection of renewable energy technologies for further evaluation is described and an initial ranking of technologies for electricity generation, industry, and buildings is provided.     

An investigation of renewable resources and renewable technology applications in Bulgaria

A preliminary assessment of renewable energy resources in Bulgaria shows that these resources are significant on a national level. Terminology for total, accessible, and reserve resources is provided, and preliminary estimates for solar, wind, biomass, hydroelectric, and geothermal resources are given. The process used to make a first-level selection of renewable energy technologies for further evaluation is described and an initial ranking of technologies for electricity generation, industry, and buildings is provided.

     

Grey relational analysis of an integrated cascade utilization system of geothermal water

With the drastic decrease in fossil resources and rapid deterioration of the global environment, the utilization of geothermal resources has been strongly advocated. The combination of heat, power, and cold utility generation is commonly used to increase the utilization efficiency of geothermal resources. In this study, an integrated cascade utilization system of waste geothermal water (ICUWGW) from a flash geothermal power plant in China is established to increase the utilization efficiency of geothermal water. The waste geothermal water leaving the power plant is proposed for further use in cascade for two-stage LiBr/H₂O absorption cooling, agricultural product drying, and residential bathing. Twelve candidate temperature schemes showing different inlet and outlet temperatures of every subsystem are proposed for the ICUWGW. Several criteria are selected for the evaluation and screening of the candidate schemes. Grey relational analysis incorporating analytic hierarchy process is conducted to screen the optimal temperature scheme for the ICUWGW to meet the comprehensive criteria of thermodynamics and economics. Results show that the optimal scheme features significant improvement in energy efficiency, exergy efficiency, and equivalent electricity generation efficiency compared with those of the current geothermal power plant. The investment payback time of the additional subsystems for cooling, drying, and bathing is 1.85 years. Exergy analysis is also conducted to determine the further optimization potential of the optimal ICUWGW. Sensitivity analysis of electricity price on the performance of the optimal ICUWGW is also performed.     

粤西地区的热带气候资源与区划

粤西热带是我国三大热带区域之一,是热带经济作物、水果和蔗糖生产的重要基地。本文分析了该区的气候资源及其主要气象灾害,结果表明该区光热资源丰富,适宜发展多种热带亚热带经济作物;水、热配合状况好,降水的有效性较高;但台风风害和低温冷害也较严重。为了充分利用气候资源,可将全区划分为北部多雨轻风区、西部多雨大风区、东部偏旱温暖区和南部干热大风区,并论述了各区农业气候资源开发利用情况。     

Conditions for a 100% renewable energy supply system in Japan and South Korea

In the wake of the Fukushima nuclear accident, alternative energy paths have been discussed for Japan, but except for a few studies the assumption is usually made that Japan is too densely populated to be suited for a near-100% sustainable, indigenous energy provision. The studies emphasizing renewable energy have proposed the use of photovoltaic power as the main source of electricity supply, in combination with diurnal battery storage and supplemented by other renewable sources such as wind, hydro, and geothermal power. Here, an alternative approach is explored, with wind and derived hydrogen production as the main energy source, but still using solar energy, biofuels, and hydropower in a resilient combination allowing full satisfaction of demands in all sectors of the economy, i.e., for dedicated electricity, transportation energy as well as heat for processes and comfort. Furthermore, the possible advantage of establishing a regional energy system with energy interchange and coordinated management of the mix of renewable energy resources across a wider region is discussed. As the closest neighbor, the energy system of South Korea is considered, first regarding the possibility of a similar full renewable energy reliance, and then for possible synergetic effects of connecting the Korean and the Japanese energy systems, in order to be able to better cope with the intermittency of renewable energy source flows.     

Large-scale baseload wind power in China

This paper presents a novel strategy for developing wind power in large-scale (multi-GW) wind farms in China. It involves combining oversized wind farms, large-scale electrical storage and long-distance transmission lines to deliver 'baseload wind power' to distant electricity demand centers. Baseload wind power is typically more valuable to the electric utility than intermittent wind power, so that storage can be economically attractive even in instances where the cost per kWh is somewhat higher than without storage.
The prospective costs for this approach to developing wind power are illustrated by modifying an oversized wind farm at Huitengxile, Inner Mongolia. The site has an average power density of 580 W/m² at 50 m hub heights and is located 500 km north of Beijing. Using locally mass-produced wind turbines there are good prospects that wind power would be cost-competitive with coal power, on a lifecycle cost basis, while providing substantial net environmental benefits.
Finally, the institutional challenges related to the prospect of large-scale wind energy development are addressed. Especially important are policies aimed at developing the capacity for mass production of as much of this technology in China as is feasible. Promising instruments for speeding up the introduction of this technology include: (i) international joint ventures between foreign vendors and developers and Chinese manufacturers; and (ii) wind resource development concessions.     

Emergy analysis of municipal wastewater treatment and generation of electricity by digestion of sewage sludge

This study examines and evaluates, by using emergy analysis, the use of environmental resources for wastewater treatment in a Swedish town. Emergy analysis was applied, while it facilitates the comparison of resource use of substantially different kind. In the emergy analysis, all resources are assessed on the basis of the amount of direct and indirect solar energy required in their generation. The study also includes an evaluation of the amount of emergy associated with the production of wastewater. On the basis of our analysis, we suggest that the large amount of emergy that wastewater contains are in proportion to the amount of resources employed for wastewater treatment and the extensive effects on surrounding ecosystems of discharge of untreated wastewater. The use of local renewable natural resources in Swedish municipal wastewater treatment systems is negligible compared with the use of purchased inputs, processed largely with the support of fossil energy. A drastic shift of this order would demand that extensive land areas surrounding human settlements be (indirectly or directly) devoted to wastewater treatment. These areas are not accessible today. Our analysis also indicates that resource requirements from the economy in the production of electricity by the digestion of sewage sludge is about two times the total resource use for generation of the average mix of electricity used in the town. We, therefore, conclude that if the only reason to digest the sludge were to produce electricity, it would be more resource-efficient to purchase the electricity on the Swedish distribution net. Accordingly, there is no resource economy in producing biomass to digest just to increase the energy production at the wastewater treatment plant.