现有燃煤电厂二氧化硫治理“十一五”规划研究

结合《现有燃煤电厂二氧化硫治理“十一五”规划》的编制背景,根据《国民经济和社会发展第十一个五年规划纲要》及相关法规、政策、标准等,重点分析了达标排放率、排放总量、排放绩效、脱硫机组容量等主要目标的选择及目标值的确定方法,并对“十一五”末全国电力二氧化硫排放量以及脱硫机组容量进行了预测.预计到2010年,全国电力二氧化硫排放总量将达到862×104 t,比2005年减少33.7%;全国烟气脱硫机组投运及在建容量将达到3.8×108 kW,占“十一五”末煤电装机总量的64.0%;全国燃煤电厂二氧化硫排放绩效指标由2005年的6.4 g/(kW·h)下降到2.7 g/(kW·h).同时进行了“十一五”现有燃煤电厂二氧化硫治理的投资分析与风险分析.提出通过完善二氧化硫总量控制制度,强化政策引导,加快脱硫产业化发展,充分发挥政府、行业组织和企业的作用确保目标的实现.      

喷射火环境下石化管廊管道失效特征试验研究

为探究喷射火灾下石化管廊管道热力学响应特征,依据流体力学相似理论搭建缩比试验平台,开展石化管廊管道热力学响应试验研究.通过分析火灾中管道热力学响应特征及事故多米诺演化特征,探讨各因素对管道升温和失效的影响程度,并结合强度理论建立管道失效时间定量计算模型.研究结果表明:火灾功率是管道失效的主导因素,随着火灾功率的增大,管...     

中国电力工业烟气脱硫的现状及发展趋势

研究我国电力工业燃煤发电厂烟气脱硫的现状及其发展趋势 ,包括我国电力工业大气SO2 污染状况 ,烟气脱硫现状 ,烟气脱硫综合经济技术评价 ,烟气脱硫技术的选择和烟气脱硫的发展趋势。研究与开发有针对性和较强应用前景的烟气脱硫技术 ,发展具有独立自主知识产权的烟气脱硫技术 ,是我国电力工业烟气脱硫技术及设备国产化的必经之路     

Energy consumption analysis of ABS plastic parts injected in a hybrid injection moulding machine

The energy analysis of injection moulding processes is influenced by complex interactions amongst the moulded part, its material, the injection machine, the process parameters and the environmental conditions. The availability of energy usage analyses that comprehend information on specific materials and machine kind is limited. This paper reports a study that estimates and analyses the power usage profile (PUP), the specific energy consumption (SEC), and the energy distribution at an operation level of two different injected parts made of acrylonitrile-butadiene-styrene and produced in a hybrid injection moulding machine. The methodology followed by the authors incorporates an experiment carried out in an industrial facility. A large sample size, and data-acquisition and data post-processing processes to obtain an accurate PUP and SEC are used. A breakdown of the energy consumed by the injection moulding process of the parts studied at an operation level using Sankey diagrams is discussed. The study results are used to identify strategies to reduce the energy consumed by the processes. The methodology employed, and the strategies reported could be used with other plastic parts regardless of the material and machine used. The results reported are new experimental data useful input for theoretical models.     

Antecedents and consequences of empowering leadership: Leader power distance,leader perception of team capability,and team innovation

The evidence that empowering leadership is an effective form of team leadership brings the question on what the antecedents of empowering leadership are into focus. We propose that empowering leadership is driven by considerations of the normative and situational appropriateness of empowering leadership that are associated with leader power distance value and leader perception of team capability. We propose that leader power distance and perceived team capability interact such that the influence of leader power distance on empowering leadership is stronger with higher perceived team capability. We extend our model to show that by affecting empowering leadership, the interaction of leader power distance and perceived team capability indirectly influences team innovation, an important team outcome associated with empowered teamwork. We tested our model in two multisource surveys in China: Study 1 of 84 technical teams and Study 2 of 83 financial service teams. We discuss how our study contributes to empowering leadership theory by providing a theoretical perspective that lends itself well to identifying other trait and situational antecedents of empowering leadership.     

污泥协同处置技术及应用分析

对我国火电厂、水泥窑在污泥协同处置方面的基本情况进行了简要介绍和分析,并对气化炉、烧结窑炉和冶金高炉等炉窑在污泥协同处置方面的应用技术进行了简要介绍。指出我国火电厂和水泥窑协同处置能力较强,但由于经济效益问题,企业协同处置污泥的积极性不高,致使行业实际处理量远小于其处理能力。同时指出气化炉、烧结窑炉和冶金高炉等其他炉窑在协同处置工业污泥方面具有适用范围广、就地处置成本低等优势,需要对其进行扩展性、挖潜性研发。     

Support vector machine based prediction of photovoltaic module and power station parameters

ABSTRACT

The uncertainty in the output power of the photovoltaic (PV) power generation station due to variation in meteorological parameters is of serious concern. An accurate output power prediction of a PV system helps in better design and planning. The present study is carried out for the prediction of output power of PV generating station by using Support Vector Machines. Two cases are considered in the present study for prediction. Case-I deals with the prediction of PV module parameters such as V_oc, I_sh, R_s, R_sh, I_max, V_max, P_max, and case-II deals with the prediction of power generation parameters such as P_DC, P_AC, and system efficiency. Historical data of PV power station with an installed capacity of 10 MW and weather information are used as input to develop four different seasons-based SVM models for all parameters. The performance results of the models are presented in terms of Mean Relative Error (MRE) and Root Mean Square Error (RMSE). Additionally, the performance results obtained with polynomial and Radial Based Function kernel are also compared to show that which kernel has better prediction accuracy, and practicability. The result shows that the minimum average RMSE and MRE for case-I with Radial Based Function kernel are 0.034%, 0.055%, 0.002%, 1.726%, 0.044%, 0.047%, 2.342%, and 0.005%, 0.014%, 0.079%, 0.885%, 0.005%, 0.007%, 0.013%, and for case-II with poly kernel are 0.014%, 0.016%, 0.149% and 0.011%, 0.0175, 1.03%, respectively. The present study will be helpful to provide technical guidance to the prediction of the PV power System.     

生活垃圾焚烧发电项目环境影响评价要点研究

本文立足于生活垃圾焚烧发电项目要求,从多个角度详细介绍了项目环境影响评价的要点,包括污染源评价、选址要求等,并介绍了支持保障策略,希望能够为未来生活垃圾焚烧发电提供理论支持。     

基于任务特征的电网企业应急预案体系重构*

为解决目前电网企业应急预案体系建设存在的内容泛化、管理成本高等问题,提出基于任务特征的应急预案体系重构思路,运用情景构建方法,开展电网企业突发事件影响场景和处置任务分析,得出7个影响场景、10类处置任务和38项子任务。结果表明:电网企业应急处置任务具有收敛性特征。通过应急预案与处置任务匹配,重构应急预案体系结构和预案定位,构建以通用性部门应急预案及现场处置方案为建设重点的新型应急预案体系,形成“通用性预案工具箱”,实现预案衔接“无缝化”、预案内容“本地化”、管理成本“聚焦化”。