HG—ZZ1.4—0.7／95／70—AⅡ角管锅炉设计综述

本文介绍了角管锅炉的设计要求及锅炉结构特性。     

QXL28200—2．5／180／110蒸汽—热水联产锅炉设计原理

本文在对蒸汽－热水联产锅炉进行长期试验研究的基础上，论述了蒸汽－热水联产锅炉应具备的性能，总体设计，热力系统以及关键部件的设计原理。     

QC88／950—32—3．8／450余热锅炉的设计特点

本文针对水泥窑尾气的特点，分析了水泥窑余热锅炉易产生的积灰、磨损及低温腐蚀等问题，阐述了我们在设计中如何解决上述问题。     

F—35／39—Y／2型锅炉节能综合改造

某热电厂Ｆ－３５／３９－Ｙ／２型锅炉原设计煤种为烟煤，制粉系统干燥剂为热风－温风。而实际燃用煤种为褐煤，致使制粉系统干燥出力不足，一次风温仅为４０℃￣５０℃。煤粉水分高达１０％￣１５％，锅炉燃烧不稳，热效率不下降。把制粉系统干燥剂改为抽高温炉烟＋热风＋温风，并采用双通道旋流燃烧器后，一次风温提高到１１０℃￣１３０℃，煤粉水分下降到２．８％￣４．１％。锅炉热效率提高了５．０％，显著地改善了锅炉燃烧的     

HG—CPC75—3．82／450—MW内锅炉设计概述

介绍了循环流化床机组的设计要求及锅炉的结构特性。     

国内首创的SHL20—2.5／400—WⅡ型锅炉

介绍了针对低挥发分多煤末Ⅱ类无烟煤的燃烧特性而研制成功的SHL20-2.5/400-W Ⅱ型锅炉的设计结构特点。     

DZW4.2—0.7／95／70—AⅡ型锅炉管板强度薄弱区域的位置及应力分析

对锅炉结构进行了有限元弹塑性计算，重点分析了该锅炉管板强度薄弱区域的位置及该区域的应力计算，为锅炉结构及管板的合理设计提供了可靠的理论依据。     

LF／VD—100t钢包精炼炉的设计

介绍了上钢三厂ＬＦ／ＶＤ－１００ｔ钢包精炼炉的总体布置、电参数确定，以及铜钢复合导电横臂、水冷炉盖的设计。     

运用SIGRAPH—UCAD2D／3D设计汽轮机装置

德国西门子ＫＷＵ集团威塞尔汽轮机制造厂在运用ＳＩＧＲＡＰＨＵＣＡＤ２Ｄ／３Ｄ设计系统进行汽轮机轮机装置的计算机辅助设计方面已取得了很大成效。该设计系统的优势在于既可以迅速剩余做好报价准备，处理合同，也可以在汽车轮机汽车的设计上具有高度的灵活性。     

N200—130／535／5335型汽轮机的节能改进

新海发电有限公司１１汽轮机高中低压三缸流通部分采用当代汽轮机最先进和设计手段进行改进。改进后的主扇三缸通流都达到预期目的，热耗率降低５６８ｋＪ／ｋＷｈ，出力增加２０ＭＷＥ，机组安全可靠性得到提高。本次改造的成果表明：采用先进对电厂运行的老机组进行改造是节约能源和改善环境的重要途径。     

Advanced controller design based on gain and phase margin for microgrid containing PV/WTG/Fuel cell/Electrolyzer/BESS

Nowadays, with the increase in the amount of power generation related to renewable energy resources, the need for energy storage and management is raised. In this regard, the hydrogen energy plays a critical role in the development of renewable technologies. In view of the above, advanced controller design is presented in this paper to effectively perform load frequency control of islanded fuel cell microgrid based on the wind turbine, photovoltaic, fuel cell, electrolyzer, battery energy storage systems, and residential and commercial loads. The controller design is based on the determination of the controller parameters that the fuel cell microgrid system will provide the desired dynamic properties. In the proposed controller design, virtual gain and phase margin testers are added to provide the desired dynamic properties. The controller's stable parameter plane is determined with the help of the stability boundary locus method, taking into account time delay, gain, and phase margin. First, the accuracy of the stable parameter plane determined for the proposed controller design is demonstrated by means of time domain and eigenvalue analyzes. Finally, in order to show the performance of the advanced controller design and the success of the fuel cell as a backup generator, analysis studies have been carried out using actual data of solar and wind, and appropriate changes of load in studied microgrid.     

Hybrid wind/PV/diesel system experiences

The past ten years have seen significant developments in the design, analysis and installation of hybrid (wind/PV/diesel) power systems. This paper presents a summary of recent progress on this subject in the United States with emphasis on the analytical and experimental work carried out at the University of Massachusetts. Topics discussed here include: 1) System configuration and hardware, 2) Modeling and design tools, and 3) Recent applications.     

Layered alkali titanates (A2TinO2n+1): possible uses for energy/environment issues

Uses of layered alkali titanates (A₂Ti_nO_2n+1; Na₂Ti₃O₇, K₂Ti₄O₉, and Cs₂Ti₅O₁₁) for energy and environmental issues are summarized. Layered alkali titanates of various structural types and compositions are regarded as a class of nanostructured materials based on titanium oxide frameworks. If compared with commonly known titanium dioxides (anatase and rutile), materials design based on layered alkali titanates is quite versatile due to the unique structure (nanosheet) and morphological characters (anisotropic particle shape). Recent development of various synthetic methods (solid-state reaction, flux method, and hydrothermal reaction) for controlling the particle shape and size of layered alkali titanates are discussed. The ion exchange ability of layered alkali titanate is used for the collection of metal ions from water as well as a way of their functionalization. These possible materials design made layered alkali titanates promising for energy (including catalysis, photocatalysts, and battery) and environmental (metal ion concentration from aqueous environments) applications.     

透平叶片的可靠性安全系数设计法

本文基于目前的蒸汽透平叶片振动强度设计准则,提出了可靠性安全系数设计法。简要介绍了该方法在叶片设计中的应用,并给出了一些计算公式。     

基于UG/WAVE的柴油机缸盖参数化设计

本文根据企业近年来对缸盖、气缸体等复杂零部件快速设计的需求,以缸盖为例介绍了这类复杂零部件快速设计的一般要求和方法。然后利用UG/WAVE技术对某柴油机缸盖进行了自顶向下的参数化设计,缩短了缸盖的改型和研发周期,提高了产品的市场竞争力。     

DESIGN ASPECTS OF SOLAR THERMOCHEMICAL ENGINEERING—A CASE STUDY: TWO-STEP WATER-SPLITTING CYCLE USING THE Fe3O4/FeO REDOX SYSTEM

We describe a methodology for the initial development of solar thermochemical reactors for converting concentrated solar energy into chemical fuels. It consists of determining the implications that the thermodynamics and kinetics of the chemical transformation have on the initial reactor design. The method is applied for a specific case study: the decomposition of iron oxide above 1875 K, as part of a two-step thermochemical cycle for producing hydrogen from water. We demonstrate that the chemistry of the reaction places important constraints on various engineering design aspects, and we present two reactor concepts that satisfy these constraints. This study addresses the initial steps necessary for the design and development of solar chemical reactors.     

Effects of partial substitutions of cerium and aluminum on the hydrogenation properties of La(0.65−x)CexCa1.03Mg1.32Ni(9−y)Aly alloy

Hydrogen in metal hydrides could be one of the promising energy storage mediums to address the intermittent nature of renewable energy. To convert the hydrogen energy to electricity, the storage system has to be coupled with a fuel cells system. Hence, it is important to design a hydrogen storage system that meets the operating requirements for a fuel cell system. In this work, the effects of partial substitution of both cerium and aluminum on the hydrogenation properties of La_(0.65−x)Ce_xCa_1.03Mg_1.32Ni_(9−y)Al_y alloys were investigated simultaneously using factorial design. Both Ce and Al additions greatly improved the reversibility of hydrogen storage capacity. However, the maximum hydrogen storage capacity and absorption kinetics can be reduced by the additions. As Ce and Al gave opposite effects on the absorption and desorption plateaus, they could be used to tune the properties of the alloys to the desired operating conditions for fuel cell applications.     

Conventional hybrid photovoltaic/thermal (PV/T) air heating collectors: steady-state simulation

This investigation is concerned with the performance analysis of a conventional hybrid photovoltaic/thermal air heating collector. A simulation model is developed and various performance parameters are calculated for single-glass and double-glass configurations. Results are presented to show the effect of various design and operational parameters on the performance of a system. These results are useful for designing such systems more scientifically. However, final selection of design and operational variables must be based on the cost-effectiveness of the system.     

基于UG/WAVE的柴油机连杆组自顶向下参数化设计

介绍了传统零件设计的缺陷和UG/WAVE的优点,并利用UG/WAVE技术以及参数化建模思想对某柴油机连杆组件进行了自顶向下参数化设计,减少了设计更新及等待的时间,提高了产品的市场竞争能力。     

Q130/850-35-3.82/450型三废混燃余热锅炉的设计

本文分析了我国的能源形势,能源利用率与世界先进国家存在的差距,阐述了余热锅炉在回收余热、环境保护等方面起着重要作用,重点介绍了三废混燃余热锅炉的结构设计特点。