共查询到19条相似文献,搜索用时 46 毫秒
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中胜电厂NG—130/3.82—M_5型锅炉原设计煤种为广西劣质烟煤,现逐步掺烧外省低硫、低灰分优质烟,排烟温度182℃,排烟热损失大,为了利用排烟余热,设计在锅炉尾部烟道安装低压省煤器,可使排烟温度降至145℃,电厂经济性提高2.57%。 相似文献
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中胜电厂NG-130/3.82-M6型锅炉原设计煤种为广西劣质烟煤,现逐步掺烧外省低硫、灰分优质烟、排烟温度182℃,排烟热损失大,为了利用排烟余热,设计在锅炉尾部烟道安装低压省煤器,可使排烟温度降至145℃,电厂经济性提高2.57%。 相似文献
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加装低压省煤器是电厂锅炉降低排烟温度的有效措施。本文对低压省煤器的布置方式、热力系统、节能原理进行了阐述,并用等效焓降方法进行低压省煤器节能量的分析。 相似文献
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加装低压省煤器是电厂锅炉降低排烟温度的有效措施.对低压省煤器的布置方式、热力系统、节能原理进行了阐述,并用等效焓降方法进行了低压省煤器节能量的分析. 相似文献
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低压锅炉省煤器存在的问题及改进措施广州白云山制药股份有限公司广州白云山中药厂陈必根1省煤器作用省煤器顾名思义是节省煤的设备,是锅炉的附属设备。根据计算,给水温度每提高6~7℃,即可节约用煤1%,排烟温度可降低2~3℃。事实上对压力不大于0.1MPa的... 相似文献
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The present study demonstrates a possible configuration of a 200 MW chemical looping combustion (CLC) system with methane (CH4) as fuel. Iron oxide‐based oxygen carriers were used because of its non‐toxic nature, low‐cost, and wide availability. We analyzed the effects of different variables on the design of the system. For the air reactor (oxidizer), bed mass is independent, and for the fuel reactor (reducer), it decreases with increase in the conversion difference between the air and fuel reactors. On the other hand, the pressure drop in the air reactor is unchanged, whereas for the fuel reactor, it decreases with the same increase of conversion difference between air and fuel reactors. Also, entrained solid mass flow rate from the air to fuel reactor shows a decreasing trend. Bed mass, bed height, pressure drop, and residence time of the bed materials decrease with increase in the conversion rates in the air and fuel reactors. Residence time of bed material in the air and fuel reactor reduces with increase in the temperature of the air reactor. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
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Fossil fuel based power generation is and will still be the back bone of our world economy, albeit such form of power generation significantly contributes to global CO2 emissions. Solar energy is a clean, environmental friendly energy source for power generation, however solar photovoltaic electricity generation is not practical for large commercial scales due to its cost and high-tech nature. Solar thermal is another way to use solar energy to generate power. Many attempts to establish solar (solo) thermal power stations have been practiced all over the world. Although there are some advantages in solo solar thermal power systems, the efficiencies and costs of these systems are not so attractive. Alternately by modifying, if possible, the existing coal-fired power stations to generate green sustainable power, a much more efficient means of power generation can be reached. This paper presents the concept of solar aided power generation in conventional coal-fired power stations, i.e., integrating solar (thermal) energy into conventional fossil fuelled power generation cycles (termed as solar aided thermal power). The solar aided power generation (SAPG) concept has technically been derived to use the strong points of the two technologies (traditional regenerative Rankine cycle with relatively higher efficiency and solar heating at relatively low temperature range). The SAPG does not only contribute to increase the efficiencies of the conventional power station and reduce its emission of the greenhouse gases, but also provides a better way to use solar heat to generate the power. This paper presents the advantages of the SAPG at conceptual level. 相似文献