运用系统节能技术实现煤气向发电高效转换

从国家政策要求和企业降低能源使用成本两方面说明了煤气向发电高效转换的必要性。分析了本企业二次能源资源利用现状,提出提高自发电量的总体策略。给出了煤气全部回收利用,优化煤气、蒸汽消耗结构的技术措施,运用能源管理中心(EMS)工具实现对煤气、蒸汽、发电负荷状态参数的实时监控和优化调度。用PDCA循环管理模式进行持续改善,提升了公司自发电量,降低了能源使用成本。     

水泵站耗能工况分析

随着国民经济的不断发展,能源变得日趋紧张。在给排水系统中,水泵也是耗能大户,通过对水泵耗散、效率的计算和工况的分析,介绍了选择、调试水泵的一些可行性措施,以达到低耗、高效、节约能源的目的。     

Sustainable Electric Power System: Is It Possible? Case Study: Croatia

This paper analyzes the reality of sustainable energy supply (SEPS) from renewable energy sources (RES) as a totally green strategy of electric energy production. The paper is based on the Advanced International Policies (AIP) scenario of the European Renewable Energy Council agency forecast by the year 2040, which foresees the share of 82% of RES, extended to 100% of RES. The key element that creates conditions for achieving this ambitious scenario is an innovative solution of the so-called solar hydroelectric power plant (SHE) which is basically combined photovoltaic (PV) power plant and pump storage hydro (PSH) which can provide continuous supply of electric power and energy to consumers. Therefore, SHE is presented in this paper as the main building element of the future SEPS. For covering unit consumption of electric energy of 1 GWh in a power system, the paper calculates unit values of the SHE system: 0.73 MW of PV generator; 4,545?m2 of PV generator; 0.36?hm3 of reservoir volume, 0.21 GWh of PSH energy and 0.24 MW of PSH. In the case of the power system in Croatia, which is rich in solar and hydroenergy and whose climate conditions are very similar to those in the European countries, it has been shown that implementation of the green strategy of energy balance fulfilling can be realized with present day technology. Precisely, this fact shows that further increase of efficiency of SHE and other RES and their combining into RES+PHS power plants, along with increase in the cost of classic power fuels and the growing needs for environment protection, the proposed solution of SEPS realization could be widely important and thus become a serious alternative to the existing energy strategies and a guideline to decision makers in many countries.     

从战略高度看能源管理

能源的科学合理利用和开发,对国民经济持续快速稳定的发展和人民生活水平的健康提高具有深远的重要意义。本文从战略高度提出抓好“转变观念,加强管理,建立能源管理体系”三个环节,是企业竞争取胜,能源方针目标得以实现的法宝。     

相变储能材料在工业余热回收领域的应用研究进展

从目前工业应用的蓄热材料的分类、生产、节能、环保和实用技术等方面对国内余热资源的利用现状进行了较为全面系统的分析和比较．并介绍了相变储能材料在工业余热回收方面的应用进展。     

某复杂难选铅锌氧化矿综合利用项目节能分析

针对氧化矿矿石储量大、品位低、矿石性质复杂、难以选别的特点,介绍了某复杂难选铅锌氧化矿综合利用项目的工艺方案、主要生产指标,提出了各项节能措施,分析了项目的用能总量及主要用能工序,并对项目的能效水平进行了分析.通过开发和采用效率高、节能效果好的工艺流程、设备,并做好建筑、给排水、供配电、通风除尘等辅助和附属设施的节能,...     

Energy Damage Detection Strategy Based on Strain Responses for Long-Span Bridge Structures

An energy damage detection strategy through disposing strain responses has been developed. First, the strain-based energy dynamic indexes for a system with multiple degrees of freedom were derived from the frequency response function (FRF) of strain responses and energy spectra density. Then, the traditional mode-shape curvature strategy and the proposed strain-based energy damage detection strategy were both used to analyze a long-span cable-stayed bridge, and it was found through comparison that the proposed strain-based energy damage detection strategy solved the shortcomings of the traditional mode-shape curvature strategy. Finally, damage location, damage quantification, and noise pollution resistance analysis for a long-span cable-stayed bridge with different degrees of damage were carried out to verify the effectiveness of the proposed strain-based energy damage detection strategy. The numerical analysis showed that the proposed strain-based energy damage detection strategy can locate damage positions accurately, and it also has good damage quantification and noise pollution resistance abilities.     

Energy intake and utilisation by nursing bearded seal (Erignathus barbatus) pups from Svalbard, Norway

In this study we measure energy intake via milk in nursing bearded seal (Erignathus barbatus) pups and determine how this energy is allocated into metabolism and storage of new tissues. This was accomplished using longitudinal mass gain records and the doubly labelled water technique on nursing pups in combination with cross-sectional data on changes in milk composition from bearded seal mothers. The pups (n = 3) were all less than a week old at the start of the experiments. Pups gained 3.3 +/- 0.4 kg.day-1 of which 50% was fat, 14% protein and 36% water. Average daily water influx for the pups was 69.5 +/- 9.0 ml.kg-1. day-1. Average CO2 production during the study period was 0.99 +/- 0.10 ml.g-1.h-1, which corresponds to a field metabolic rate of 642 +/- 67 kJ.kg-1. day-1, or 6.0 +/- 0.5 times the predicted basal metabolic rate according to Kleiber (1975). The pups drank an average of 7.6 +/- 0.5 kg of milk daily. This corresponds to a daily energy intake of 154 +/- 8 MJ, 47 +/- 14% of which was stored as new body tissue. Despite this high energy intake bearded seal pups do not get as fat as do other nursing phocids. This is in part due to their larger body size but also due to their very active aquatic lifestyle and the lower and more consistent fat content of the milk compared to other phocid species. Bearded seal mothers forage during lactation and may also be involved in teaching their pups to feed independently. All these data suggest that the lactation strategy of bearded seals differs from the phocid norm.     

西部开发的核心是西部资源的优化配置

从资源概念的更新;物质资源的内涵在扩展;物质资源利用的标准更新;市场为基础的资源配置;市场经济的市场特征;资源准入市场的标准;市场配置资源的动力机制;市场配置资源的几个特点;西部大开发需要大开放等几个方面简述、说明了西部开发的核心是西部资源的优化配置。     

LonWorks技术及其在能源数据采集管理系统中的应用

介绍了ＬｏｎＷｏｒｋｓ的组成及特点，将ＬｏｎＷｏｒｋｓ现场部霸权主义地能源数据采集管理网络系统，可以实现能源数据的远程自动采集和处理，并可使系统具有较高的性能价格比     

钢铁生产的水能关系分析

从钢铁生产过程中水资源使用时的能耗角度研究了钢铁联合企业的水能关系,提出了水能强度的概念来评价企业生产过程中水资源利用的节能水平,建立了钢铁企业的水能关系模型。以中国某大型钢铁联合企业为例,计算并分析了该企业的水能关系。该企业总的水能量为55 709 kW·h/h,重复用水水能量占整个钢铁企业全部水能量的82%,补水水能量占16%,排水水能量占1%;各工序中热轧工序占比最大,其次是炼铁、炼钢工序,冷轧、烧结和炼焦工序较低。该企业的吨钢水能强度为0.208 kW·h/m3,炼铁工序的水能强度最高,热轧、炼钢工序次之,烧结、冷轧和炼焦工序较低。最后,从钢铁生产过程水资源利用的角度得到节能的方向及措施。     

ZN63B真空开关储能系统缺陷整改

ZN63B真空开关因其结构简单,操作能耗小,动作可靠,使用安全等特点被广泛应用。应用结果表明：ZN63B真空开关因其储能微动开关挡板使用材质不当,造成微动开关触点在储能结束时不能正常分合,为设备较大缺陷,应引起重视。     

对湖南省战略性新能源产业发展的思考

要大力发展并利用可再生能源,电能的存储是关键。锂离子电池是一种综合性能好、清洁环保的新型储能电池和动力电池。小型锂离子电池,以高品质钴酸锂为主导;锂离子动力电池,以高品质磷酸铁锂为主导。湖南省锂离子电池正极材料研究生产有良好的产业化基础,应加大研发投入力度,组建战略性新能源材料研发中心和大力发展先进电池材料产业。     

ReSET-Raster: Surface Energy Balance Model for Calculating Evapotranspiration Using a Raster Approach

Surface energy balance models developed for mapping evapotranspiration at high resolution use weather station data. Previous models such as SEBAL or METRIC use wind and reference evapotranspiration from a single weather station. A third model (ReSET) uses wind run from multiple weather stations but uses a single weather station for the internal calibration. Because these models solve the energy balance equation for areas that usually have significant spatial variability, it is more appropriate to have all inputs and calculations in a raster format. This paper presents a full rasterized model, which uses all inputs and performs all calculations in a raster format (ReSET-Raster). The ReSET-Raster model provides the flexibility to use several weather stations as data sources to generate interpolated weather parameters in a raster format. It explicitly takes into account the spatial variation of weather parameters between weather stations, which can be significant. This paper presents examples showing that evapotranspiration calculated with the raster approach can vary as much as 17% compared with evapotranspiration calculated with point values.     

企业开展内部能源审计浅议

企业内部能源审计工作具有帮助企业合理使用能源资源,提高能源利用率等作用,所以越来越受到重视。本文阐述了企业内部能源审计的实施架构,提出了企业开展内部能源审计过程中应注意的问题。     

废旧锂离子电池资源现状及回收利用

废旧锂离子电池的无害化处理及回收利用已经成为各个科研院所研究的重点及热点内容。本文系统介绍了废旧锂离子电池的资源现状与目前回收利用的各种不同的工艺路线,并且详细分析了各种工艺路线的优缺点,以期为废旧锂离子电池的回收与利用找到新的思路与方法。最终认为“化学?物理联合法”为当前废旧锂离子电池无害化处置及回收利用的较为理想的方法。      

机械活化黄铁矿的储能研究

采用自行研制的机械化学热量仪在303.15 K下对机械活化黄铁矿进行了在线储能研究。结果表明:湿磨时黄铁矿最大储能为361.5 J/g,活化效率为20.5%;干磨时黄铁矿最大储能为338.3 J/g,活化效率为16.1%。粒度和X射线衍射分析表明,活化后黄铁矿粒度减小,晶格发生畸变。     

冶金重点用能单位节能监测分析

从节能监测的意义、基本情况、管理工作、监测效果等方面论述了节能监测工作重要性及作用。并提出加大依法节能力度，抓好重点企业耗能单位岗位人员培训和考核，加速淘汰落后的生产设备和工艺技术进程等建议。     

煤气-蒸汽联合循环发电项目有关问题的探讨

煤气 -蒸汽联合循环发电工程利用回收的高炉煤气为能源发电 ,可合理利用资源 ,起到能源优化 ,减少环境污染的作用。通过对宝钢、太钢CCPP项目进行分析 ,提出了项目的可行性及存在的风险 ,为企业决策提供依据。     

鞍钢公司节水减排工作实践

我国是世界上水资源贫乏的国家之一,北方城市尤其缺水。为了实现清洁生产,鞍钢在大规模建设环保设施的基础上,正在进一步开展节能减排工作,以减少循环水量,降低新水用量,提高西大沟污水处理系统的处理能力,提高污水回用率,争取2015年实现排放污水全部达到二级及以上的处理水平,为远期实现零排放打下坚实的基础。