以下为句子列表:
英文: A novel strip-coil-baffle structure used to enhance heat transfer and support the tube bundle for a tube-shell heat exchanger is proposed.The new structure can sleeve the tubes in bundle alternatively to create a vortex flow in a heat exchanger.The numeri
中文: 介绍了一种用于强化管壳式换热器壳侧传热和支撑管束的螺旋折流片新型结构,该结构是对换热器管子相间地套上螺旋折流片以产生旋涡流动.研究模型是在正方形布置的4个管子中的2个对角管子套上螺旋折流片后形成的通道,利用FLUENT软件对该上述四管通道模型的流场和温度分布情况进行了数值模拟;分析了四管通道模型中螺旋折流片对强化传热和流动阻力随雷诺数的变化关系的影响.算例结果显示该新型结构可比相同尺寸的光管通道中的情形传热系数提高约40﹪~55﹪,同时也将伴随较高的流动阻力.可以相信螺旋折流片式换热器将会在许多工业领域有
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英文: Abstract: A novel strip-coil-baffle structure used to enhance heat transfer and support the tube bundle for a tube-shell heat exchanger is proposed.The new structure can sleeve the tubes in bundle alternatively to create a vortex flow in a heat exchanger.
中文: 文摘:介绍了一种用于强化管壳式换热器壳侧传热和支撑管束的螺旋折流片新型结构,该结构是对换热器管子相间地套上螺旋折流片以产生旋涡流动.研究模型是在正方形布置的4个管子中的2个对角管子套上螺旋折流片后形成的通道,利用FLUENT软件对该上述四管通道模型的流场和温度分布情况进行了数值模拟;分析了四管通道模型中螺旋折流片对强化传热和流动阻力随雷诺数的变化关系的影响.算例结果显示该新型结构可比相同尺寸的光管通道中的情形传热系数提高约40﹪~55﹪,同时也将伴随较高的流动阻力.可以相信螺旋折流片式换热器将会在许多工业
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英文: Analyzed the reason of stress corrosion cracking on U shape brass tube bundle when it is having penetrative test with ammonia, improved technology of test and gave out the method should be paid attention to during the process of brass tube exchanger.
中文: 摘要对黄铜管换热器管束在氨渗试验过程中发生应力腐蚀,导致铜管破裂的原因进行了分析,改进了施工方案,并提出了黄铜管换热器制造过程中对管束进行耐压试验时的注意事项。
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英文: The numerical results show that because of the temperature variation of cooling water along its flow direction the heat load of the second-pass tube bundle is lower than that of the first-pass tube bundle, which brings about the steam flow deflection and
中文: 计算结果表明,由于冷却水温度沿冷却水流动方向的变化,第二流程管束的热负荷明显小于第一流程的,并使蒸汽流动産生侧向偏斜,导致流动与传热特性的恶化。
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