共查询到19条相似文献,搜索用时 109 毫秒
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本文提出了燃气蒸汽联合循环机组全厂控制系统的优化方案,并结合广东省某燃气蒸汽联合循环机组全厂控制系统的构成情况,对燃气蒸汽联合循环机组全厂控制系统的设计和应用进行了分析和介绍,为燃气蒸汽联合循环机组全厂控制系统的优化设计及实现提供了可借鉴的经验,并对实施过程中可能遇到的问题进行了分析,提出了相应的解决办法。 相似文献
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燃气蒸汽联合循环的热平衡热效率计算及评价 总被引:4,自引:0,他引:4
通过对燃气蒸汽联合循环的热平衡计算及分析, 从工程实用的要求出发, 计算各主要设备的热效率和整个联合循环装置的热效率, 并分别进行评价, 分析影响热效率的主要因素和对策。同时对燃气蒸汽联合循环的功率分配问题进行了阐述和分析。 相似文献
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随着我国能源结构的调整和环保要求的日益提高,燃气-蒸汽联合循环电厂将逐渐增多,因此,文章着重对国内外燃气-蒸汽联合循环技术的发展状况,燃气-蒸汽联合循环电厂技术及设备国产化的情况和目前我国对燃气-燃气联合循环电厂的设计技术原则进行了阐述。 相似文献
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采用进气喷雾冷却技术提高9E燃气轮机的出力和热效率 总被引:2,自引:0,他引:2
在分析大气温度对燃气轮机及联合循环性能影响的基础上,对镇海发电厂300 MW燃气轮机蒸汽联合循环机组进行改造,采用进气喷雾冷却装置提高了燃气轮机的出力和热效率,取得了很好的经济效益. 相似文献
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对E型燃机和F型燃机的性能进行了比较,同时对基于这两种燃机的联合循环电厂的性能和经济性进行了分析,指出无论是燃机本身的性能,还是燃机联合循环的性能,F型燃机都优于E型燃机;在电厂的建造成本、发电成本及运行和维护方面,F型燃机联合循环电厂也比E型燃机联合循环电厂具有优势。为此,推荐F型燃机作为近年燃机电厂首选机型。 相似文献
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<正> 1 前言 为了对山东沾化发电厂进行技术改造,省局决定由生产部、电力试验所、电力设计院及沾化电厂组成联合调研组,对国内外燃机联合循环电站的现状进行调研,提出沾化电厂技术改造方案。本人作为调研组成员,赴北京、广东、海南进行调研收资,并实地考察了广东佛山沙口发电厂和海南洋浦发电厂。现将有关情况作简要介绍,供领导及同行参考。2 国内外燃机联合循环电站的现状 燃机联合循环电站与常规火力发电厂的差异主要是:燃机联合循环电站不采用常规火力发电厂锅 相似文献
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本文指出了磁流体发电的重要意义,叙述了国际上过去30年来所建的试验电站和实验室内研究和开发工作所取得的主要进展和成就,并指出了实用化的前景。考虑到中国的实际情况,提出了中国燃煤磁流体发电计划的方针,建议在本世纪内建立一个热输入功率为25兆瓦的磁流体联合循环试验设备,并进行长时间发电部件和系统的试验,以便在下世纪初能建立示范电站并和世界各国同步进入实用化阶段。 相似文献
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This paper reports on the results of the optimization of the cross-sectional shape of a magnet coil system including an MHD channel. This optimization was carried out for a 200-MWe supersonic Faraday-type MHD generator. It was shown that the channel length can be shortened more than 30 percent, without the decrease of the enthalpy extraction by the optimization of the coil shape from the crescent shape coil producing a uniform magnetic field. It was estimated also that the capital cost for a commercial MHD/steam combined plant can be decreased more than 6 percent by this coil shape optimization. 相似文献
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热化学再生磁流体发电系统——烧煤磁流体发电研究技术路线探讨 总被引:1,自引:1,他引:1
本文简要回顾了磁流体发电研究发展的历史,讨论热化学两者一磁流体发电系统的特点和意义,这一系统有可能导致烧煤磁流体发电技术的新突破。 相似文献
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Yoshitaka Inui Mitsuhide Kato Kenji Morimoto Motoo Ishikawa Juro Umoto 《Electrical Engineering in Japan》1992,112(6):99-111
The authors propose a new power consolidation-inversion-control system for the Faraday MHD generator using the voltage source PWM inverters. The dc output power for each electrodes pair of the MHD generator is at first inverted into three-phase ac power by a voltage source PWM inverter, and then the ac powers are consolidated by transformers. The proposed system does not need such expensive equipment as an ac filter or phase modifier and can independently and simultaneously control the active and reactive powers provided to the electric power system. Numerical simulations of the whole system, including the Faraday MHD generator, the proposed power consolidation-inversion-control system, and the electric power system, show that the proposed system can stably and steadily transmit and control the electric power from the MHD generator to the electric power system. It is also confirmed that the proposed system can independently and simultaneously control the active and reactive powers and can be used as a fast power controller. 相似文献
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MHD通道的流体动力学分析是通道结构设计技术的理论基础。MHD通道内的海水流动阻力除了受海水在通道内的流动状态(层流、紊流、边界层、二相流)、通道的几何形状和表面粗糙度的影响外,也受磁场、电场作用下的哈脱曼效应的影响。本文概述了国外MHD通道的一维和二维流体动力学分析模型,针对我们的实际情况,提出一些想法供同行学者参考。 相似文献
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在燃煤磁流体发电机中,从几个电极上联起来取得功率是近来得到发展的负载联结方式,它被用于斜接型磁流体发电机的功率取出区和法拉第发电机的所有电极。这种联结能对各对电极的电流控制起附加作用,而且能够用调整通道电极电流去达到所希望的电气及气动力学的运行状况。这种控制电极电流牟能力在故障控制中也是有用的。在斜接型发电机中,这种回路已发展到用来控制每个斜接回路中的电流,并能隔离由阴极壁渣层短路而引起的局部阴极 相似文献
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Gaigo Kato Kazumasa Takahashi Takashi Kikuchi Toru Sasaki 《Electrical Engineering in Japan》2023,216(3):e23440
We have demonstrated a capacitively coupled Hall-type MHD generator using ECR plasma. To clarify the characteristics of the fabricated MHD generator, we measured the power generation characteristics as a function of magnetic field strength using a DC Hall-type MHD power generation experiment. The results showed that the output power decreased due to magnetic pressure at the higher magnetic field. However, the output power corresponded to the theoretical value at the lower magnetic field. An AC Hall-type MHD power generation experiment was conducted using an AC magnetic field. As a result, full-wave rectification voltage was observed as per theory. Finally, capacitively coupled Hall-type MHD power generation experiments were conducted, and full-wave rectified waveforms were observed as in AC Hall-type MHD power generation. These waveforms were similar to the output waveforms predicted from theory. These results show that the capacitively coupled Hall-type MHD generator is feasible. 相似文献
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Three-Dimensional Flow Analysis in a Faraday-Type MHD Generator 总被引:1,自引:0,他引:1
《Industry Applications, IEEE Transactions on》2008,44(4):1116-1123