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燃气轮机进气蒸发冷却装置经济效益的论证 总被引:14,自引:4,他引:10
介绍美国唐纳森公司生产的蒸发冷却装置应用于251B11燃气轮发电机组中,对提高燃气轮发电机组及联合循环发电机组输出功率和热效率及对提高燃机电厂发电生产的经济效益的作用。 相似文献
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燃气轮机组进气用蒸发式冷却器中的气水分离技术实验研究 总被引:1,自引:1,他引:0
从工程应用角度出发,对自行开发的新型植物网垫式气水分离器的特性进行了实验研究,同时对目前工业中常用的波形板惯性级气水分离器在特定使用条件下的性能进行了测定,得出了对工程具有实用价值的结果。 相似文献
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采用基于Maisotsenko循环的露点间接蒸发式冷却作为进气冷却的手段,研究了不同环境条件下其对燃气轮机性能的提升效果。建立了针对某9E级燃气轮机的热力循环过程的计算模型,并利用该热力模型分析了进气温度变化对燃机出力的影响。基于Maisotsenko循环的原理,以温降为指标对露点间接蒸发冷却器的性能进行了分析。以功率和效率作为指标,对燃气轮机性能随环境条件的变化情况做了数值模拟,对露点蒸发式冷却与无进气冷却、直接喷雾式冷却对燃机性能的影响进行了计算分析。结果表明,在高温低湿度的条件下,露点间接蒸发式冷却能有效提升燃机性能。 相似文献
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A mathematical model has been developed to evaluate the relative thermal performance of a building coupled with an indirect or direct evaporative cooler. Using periodic analysis for taking into account thermal storage of building envelope, explicit expressions have been obtained for room air temperature and room air humidity. For comparing their performance under different climatic conditions, numerical calculations have been made taking meteorological parameters for a typical day for Delhi (composite climate), Jodhpur (hot-dry climate) and Madras (hot-humid climate). It is found that the indirect evaporative cooler is a more effective and energy efficient system than the air-conditioner; it can hence be commercially used for computer and electronic exchange applications as well as for human comfort in a variety of climatic conditions, whereas direct evaporative cooler has limited use (only in hot-dry and composite climates). © 1997 by John Wiley & Sons, Ltd. 相似文献
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A rule of thumb for indirect evaporative cooler has been derived in terms of the size of floor area to be cooled and design parameters of tube type IEC, viz. process stream air flow rate and number of tubes; the three Indian climate zones, namely hot–dry, composite and warm–humid, represented by three cities of Jodhpur, Delhi and Madras, respectively, have been considered. Copyright © 1999 John Wiley & Sons, Ltd. 相似文献
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A mathematical model based on heat transfer principles, for characterizing the cooling performance of a room coupled indirect evaporative cooler (tube type) has been developed. Two dimensionless parameters, i.e. environment factor, ϕ and cooling factor, CF have been defined to characterize the performance of IEC coupled with a room. The optimum values of these parameters have been obtained for different environmental and thermal load conditions. In addition to this, a linear relationship has been obtained for the optimum size of a cooler to remove maximum heat from a room of given size. © 1998 John Wiley & Sons, Ltd. 相似文献
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The thermal performance of a non-conditioned building fitted with an indirect evaporative cooler (IEC) has been investigated in terms of hourly, monthly and seasonal discomfort index. The effect of various design parameters of the IEC on the discomfort index has been investigated for three different climatic areas of India, i.e. hot–dry, warm, humid and composite. The analysis has shown that the IEC is effective for creating thermal comfort conditions in buildings in dry–hot and composite climates. © 1997 by John Wiley & Sons, Ltd. 相似文献
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湿化燃气轮机循环的性能分析 总被引:1,自引:0,他引:1
能源危机和环境污染的问题使人们对能源利用效率和环保的要求日益增加,同时经济的快速发展也使人们对电能的需求量越来越大。据国际能源协会(IEA)预测,电能的消耗将以平均每年2·4%的速度增长,因此效率高、比功输出大、对环境污染少成为目前发电技术所努力追求的目标。随着分布 相似文献