共查询到12条相似文献,搜索用时 46 毫秒
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介绍了干-湿式冷却系统的工作原理及构成,对该系统的运行特性及节水情况进行了分析,指出了干-湿式冷却技术的应用优势,为水电厂的节水节能提供了一条可行的途径。 相似文献
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详细介绍双向皮带输渣机在使用过程中存在的主要问题,改造三通落渣管的实施情况、经济分析、实际意义,对火电厂实施小技改项目,改善设备性能具有一定的参考价值。 相似文献
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IntroductionThe final stages of large steam turbines in fossilpower plant and all stages of turbines in nuclear powerp1ants operate in the wet steam region. It is important todevelop a simple direct method for measuring thewetness of flowing wet steam. The heating method hasmany advantages. First, compared with optical method,the measured wetness results of this method consist ofevery size of water droplets in wet steam flow. Second, itis not restricted to the measurement environment, it canb… 相似文献
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Clothing materials may be considered composite materials composed of fiber, air, and moisture. For this paper, effective thermal conductivities of wet clothing materials were analyzed numerically using a proposed heat transfer model. The following simplifications were introduced. The clothing material fiber is woven with a single yarn, there is no air movement between fibers, and mass transfer is neglected. Numerical calculations were made using finite difference equations for steady three-dimensional heat conduction for several composite materials representing wet clothing materials. The main results obtained were as follows. The effective thermal conductivity of wet clothing material increases as the thermal conductivity of the yarn and the moisture content increase. We found that our numerical results agree qualitatively with those previously measured. The effective thermal conductivity of a wet layered material depends on the distribution of moisture and attains a maximum in the wet layer. © 1998 Scripta Technica, Heat Trans Jpn Res, 27(3): 243–254, 1998 相似文献
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湿压缩燃气轮机热力循环的特点与机理分析 总被引:4,自引:0,他引:4
介绍了湿压缩燃气机的特点和增加循环功的机理,讨论了喷水位置对压缩过程的影响,针对理论分析和实验结果中喷水引起各参数变化规律做了总结和机理分析,提出了对燃气轮机喷水的限制因素。 相似文献