火电厂液氨贮存风险评价中典型事故影响范围计算

对火电厂液氨贮存风险评价中的三类典型事故（化学爆炸、管道泄漏和贮罐整体破裂）影响范围的计算方法进行了探讨。以某火电厂2×1000MW机组为例,当发生化学爆炸事故时,爆炸冲击波损害等级1、2、3、4的影响区域半径分别为78.3、156.6、391.5和1044m;管道泄漏和贮罐整体破裂所引发的中毒事故中,后者对环境的影响较大。若事故发生后10min内得到有效控制,则在F大气稳定度、1.5m/s风速条件下,贮罐整体破裂半致死浓度的影响区域半径（r值）为344.6m,大于管道泄漏r值（205.8m）;若事故发生后不考虑控制措施,则在F大气稳定度、1.5 m/s风速条件下,贮罐整体破裂半致死浓度的影响区域半径r值为561 m。     

发展中国家（地区）风电装机规划及我国风电发展重点建议

在全球风电市场稳步发展的背景下,发展中国家（地区）的风电市场也都呈现快速发展的趋势,在各国风电发展持续升温的前提下,未来我国风电发展潜力巨大。列举了非洲、印度、拉丁美洲、东欧、中东等5个发展中国家（地区）未来风电发展规划情况,在总结这些国家或地区风电发展特点的基础上,对我国未来风电发展提出建议。     

输变电项目竣工环保验收存在的问题及对策分析

结合输变电项目环保验收的调查实践,分析了输变电项目竣工环保验收中存在问题,提出对策及建议。     

Artificial neural network based maximum power point tracking controller for photovoltaic standalone system

This article presents a two-stage maximum power point tracking (MPPT) controller using artificial neural network (ANN) for photovoltaic (PV) standalone system, under varying weather conditions of solar irradiation and module temperature. At the first-stage, the ANN algorithm locates the maximum power point (MPP) associated to solar irradiation and module temperature. Then, a simple controller at the second-step, by changing the duty cycle of a DC–DC boost converter, tracks the MPP. In this method, in addition to experimental data collection for training the ANN, a circuit is designed in MATLAB-Simulink to acquire data for whole ranges of weather condition. The whole system is simulated in Simulink. Simulation results show small transient response time, and low power oscillation in steady-state. Furthermore, dynamic response verifies that this method is very fast and precise at tracking the MPP under rapidly changing irradiation, and has very low power oscillation under slowly changing irradiation. Experimental results are provided to verify the simulation results as well.     

Optimization of grid tied hybrid power system in smart premises

Tapping of renewable energy sources like solar and wind is given great priority by power producers all over the world. Technical problems of linking them to the grid are solved. The cost constraints of utilizing renewable energy at specific locations are to be determined. In this work, a model is developed for grid tied hybrid power system (HPS) consisting of photovoltaic (PV) module and wind mill at the roof top of smart premises. The grid is capable of delivering and receiving energy. Objective function is formed with constraints taking into account the cost of PV module, wind mill, and grid tied inverter with controller. The constraints are rating of HPS and energy that can be delivered to the grid. Using this model, case studies were conducted in three locations in India, each location having two different demands. The results are presented. With the optimal rating of HPS, results shows that, conventional energy cost is higher.     

Shift to continuous operation of an air-cathode microbial fuel cell long-running in fed-batch mode boosts power generation

Microbial fuel cells (MFCs) which are operated in continuous mode are more suitable for practical applications than fed batch ones. The aim of the present study was to characterize an air-cathode MFC operating in continuous mode and to determine the intrinsic properties for suitable performance and scalability. Air-cathode MFCs were constructed from plexiglass with a total working volume of 220 mL. Zirfon® separator used in this MFC had cross section area of 100 cm². The air cathode MFCs were operated in fed-batch mode and then shifted to the continuous mode. To determine the behavior of anode and cathode in long term operation (274 days), their contribution in MFC performance was evaluated over time. Once the active biofilm was formed, power production and substrate consumption rate were significantly higher. The internal resistance increased with the passage of time. After stabilization of biofilm when the MFC was placed in close circuit by connecting an external resistance, the anode-reference and cathode-reference electrode behavior showed that anode potential is near to the bacterial cell inside potential. The maximum open circuit voltage achieved was 623 mV and the highest power and volumetric power density were 38.03 mW/m² and 1296 mW/m³, respectively.     

Objectively best or most acceptable? Expert and lay knowledge in Swedish wind power permit processes

This article analyses legal aspects of the Swedish wind power development, theoretically based on how different types of knowledge are represented in legal contexts, mainly in the courts. A sample of appealed wind power permits is analysed, a handful of relevant informants are interviewed – including two judges in the Land and Environment Court and the appeal court – and the legal setting is analysed. Of key interest here is the interplay between expert and lay statements in the court cases, which here is related to the concepts of calculating and communicative rationalities that are developed in the planning literature. The results indicate that the juridification – which takes place as a permit issue is appealed in the judiciary system – supports the calculating rationality more than the communicative, and that the plaintiffs often attempt to adapt in how they shape their argumentation.     

火电厂降低PM2.5排放措施研究

简要介绍了几种新型实用的火电厂降低PM2.5排放的控制技术,为火电厂最大限度的降低PM2.5排放提供系统的设计方案。     

输变电工程的环境保护

论述了我国输变电工程环境保护评价体系,分析了输变电工程施工期和运行期的环境影响,提出了输变电工程各阶段环境保护措施,对今后进一步做好输变电工程环境保护工作提出建议。     

烟气多污染物系统一体化控制技术的研究

简要论述了燃煤烟气多污染物一体化控制技术,重点研究了系统一体化控制技术,采用该技术可以在燃煤电厂现有烟气治理装置基础上实现节能降耗。分析多污染物系统一体化控制技术方案,包括技术路线图、全流程模拟和DCS集成联锁及智能化控制,并介绍了系统一体化控制技术在贵州某电厂2×660 MW机组的示范应用。