火电厂开展安全性评价的程序及常见问题处理

针对当前安全性评价得到了火力发电企业的普遍认同,以及不同程度、自觉不自觉的开展安全性评价工作这一现状,结合作者多年的自评价、第三方评价的工作经验,详细阐述火电厂开展安全性评价工作的意义、保障、程序、常见问题及处理,特别就如何实施安全性评价工作以及实施过程应注意的问题作了全面深入的剖析,为火电厂做好安全性评价工作提供借鉴。     

火电厂电缆安全状况调查

通过对30家火电厂92台机组电缆安全状况的调查,研究了火电厂电缆安全技术管理体系的建立和执行情况、电缆设备状况、电缆安全技术措施以及运行管理状况。指出火电厂电缆安全状况在安全管理体系不健全、电缆设备安全隐患较多、安全技术措施不到位且运行管理相对较为松懈等问题,加大了火电厂电缆事故发生机率。针对电缆安全技术现状和管理现状,提出了提高和改善火电厂电缆安全水平的技术和管理措施。     

利用垃圾焚烧发电技术与环境污染防控措施

大连利用生活垃圾焚烧发电,在消除污染的同时发展新能源,促进循环经济发展,具有较好的社会、环境和经济效益。简要介绍垃圾焚烧原理、工艺流程和技术特点,二恶英类污染物预防控制措施,以及焚烧灰渣无害化处理处置措施等,与国内同行交流、借鉴。     

HPF(高通数字滤波器)的电网谐波检测技术的研究与应用

为有效地消除电力谐波污染、确保电网运行安全,必须采用有源电力滤波技术;为改善有源电力滤波器的性能,必须采取先进的谐波检测方法、高效的逆变技术。笔者在研究有源电力滤波技术的基础上,对有源电力滤波的关键技术即谐波检测与分离技术,进行了探讨和深入研究,给出了一种HPF(高通数字滤波器)的谐波检测与分离方法,进行了理论验算,利用MATLAB仿真结果对该检测技术进行实验研究。仿真和实验结果表明:该法比常用的LPF(低通数字滤波器LowPassDigitalFilter)的谐波检测分离方法具有更好的检测实时性;在电网电压有畸变时也能达到很高的检测精度;该检测技术应用于混合有源电力滤波器后能大大改善滤波性能。     

低功率和停堆工况下人员可靠性分析

低功率和停堆工况下人的错误操作引起的人误事件,是电站风险的重要根源之一,应对其进行认真分析并找出其发生的主要原因。笔者根据低功率和停堆工况下人误事件的特点,通过对5种人员可靠性分析方法的比较,选择了SPAR -H作为人误事件定量化分析的方法;以停堆工况下的抽水过多事件为实例,对该事件中包含的3个人误事件进行了定量化分析,给出了定量化分析结果;通过分析、比较及实例应用的结果表明,SPAR H作为低功率和停堆工况下HRA分析方法是合适的,符合该工况下人误事件的特点,同时SPAR H过程简单,有利于电站人员进行实际应用。     

长春市农村城镇化的动力机制

改革开放以来,随着长春市农村城镇化水平的不断提高,农村城镇化快速推进成为该市农村区域的一个重要特征,农村城镇化的动力机制不断地趋于多元化.在这种背景下,从城乡互动、区域非均衡发展的地理学思维,利用城市地理学、区域经济学、城市与区域规划的理论和方法为基础,重点探讨长春市农村城镇化的动力机制问题.     

强化火电厂治理工作控制酸雨和空气污染

结合当前我国大气污染控制工作的严峻形势，分析了我国火电行业大气污染控制工作的进展情况、存在问题及控制措施等。     

INDEXED SEQUENTIAL HYDROLOGIC MODELING FOR HYDROPOWER CAPACITY ESTIMATION1

ABSTRACT: The indexed sequential hydrologic modeling (ISM) methodology is utilized by the Western Area Power Administration as the basis for risk-based estimation of project-dependable hydropower capacity for several federally owned/operated projects. ISM is a technique based on synthetic generation of a series of overlapping short-term inflow sequences obtained directly from the historical record. The validity of ISM is assessed through application to the complex multireservoir hydropower system of the Colorado River basin for providing risk estimates associated with determination of reliable hydrogeneration capacity. Performance of ISM is compared with results from stochastically generated streamflow input data to the Colorado River Simulation System (CRSS). Statistical analysis and comparison of results are based on monthly power capacity, energy generation, and downstream water deliveries. Results indicate that outputs generated from ISM synthetically generated sequences display an acceptable correspondence with those obtained from stochastically generated hydrologic data for the Colorado River Basin.     

Health and safety implications of alternative energy technologies. II. Solar

No energy technology is risk free when all aspects of its utilization are taken into account. Every energy technology has some attendant direct and indirect health and safety concerns. Solar technologies examined in this paper are wind, ocean thermal energy gradients, passive, photovoltaic, satellite power systems, low- and high-temperature collectors, and central power stations, as well as tidal power. For many of these technologies, insufficient historical data are available from which to assess the health risks and environmental impacts. However, their similarities to other projects make certain predictions possible. For example, anticipated problems in worker safety in constructing ocean thermal energy conversion systems will be similar to those associated with other large-scale construction projects, like deep-sea oil drilling platforms. Occupational hazards associated with photovoltaic plant operation would be those associated with normal electricity generation, although for workers involved in the actual production of photovoltaic materials, there is some concern for the toxic effects of the materials used, including silicon, cadmium, and gallium arsenide.Satellite power systems have several unique risks. These include the effects of long-term space travel for construction workers, effects on the ozone layer and the attendant risk of skin cancer in the general public, and the as-yet-undetermined effects of long-term, low-level microwave exposure. Hazards may arise from three sources in solar heating and cooling systems: water contamination from corrosion inhibitors, heat transfer fluids, and bactericides; collector over-heating, fires, and out-gassing and handling and disposal of system fluids and wastes. Similar concerns exist for solar thermal power systems. Even passive solar systems may increase indoor exposure levels to various air pollutants and toxic substances, eitherdirectly from the solar system itself or indirectly by trapping released pollutants from furnishings, building materials, and indoor combustion.Operated by Union Carbide Corporation under contract W-7405-eng-26 for the U.S. Department of Energy.