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电厂直流系统的本质安全研究 被引量:1
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作者 何学山 杨代勇 李坤涛 《中国建材科技》 2016年第5期156-157,共2页
电厂220V直流系统为动力用直流电源,它应保证在任何事故情况下都能可靠和不间断地向负载供电。某电厂机组的热工DEH、MEH两路电源,均取自同段动力直流母线,直流母线失压会带来很大的安全隐患。分析研究此设计缺陷,提出可行性的改进方案... 电厂220V直流系统为动力用直流电源,它应保证在任何事故情况下都能可靠和不间断地向负载供电。某电厂机组的热工DEH、MEH两路电源,均取自同段动力直流母线,直流母线失压会带来很大的安全隐患。分析研究此设计缺陷,提出可行性的改进方案及运行操作,即两路电源分别取自动力用直流系统馈线和蓄电池出线,强化直流系统的本质安全,供类似设计的电厂及变电站参考。 展开更多
关键词 电厂 220V系统 动力用直流 母线失压 蓄电池
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Effects of operating pressure on the key parameters of coal direct chemical looping combustion 被引量:2
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作者 Rahul Wadhwani Bikash Mohanty 《International Journal of Coal Science & Technology》 EI 2016年第1期20-27,共8页
Techno-economic development of chemical looping combustion (CLC) process has been one of the most pursued research areas of the present decade due to its ability to reduce carbon foot print during utilization of coa... Techno-economic development of chemical looping combustion (CLC) process has been one of the most pursued research areas of the present decade due to its ability to reduce carbon foot print during utilization of coal to generate energy. Based on a 2D computational fluid dynamics model, the present work provides a computational approach to study the effect of operating pressure--a key parameter in designing of CLC reactors, on optimum operating conditions. The effects of operating pressure have been examined in terms of reactors temperature, percentage of fuel conversion and purity of carbon dioxide in fuel reactor exhaust. The simulated results show qualitative agreement with the trends obtained by other investigators during experimental studies. 展开更多
关键词 Operating pressure Chemical looping combustion Computational fluid dynamics (CFD)
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