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This paper describes an integrated approach into the design and evaluation of a novel tube bundle heat exchanger that achieves higher heat transfer levels at lower levels of pressure drop,while remaining less susceptible to gas-side fouling.本文描述一种综合的方法来设计和评价一种新型的管束式热交换器,这种热交换器能在较低的压力降下实现较高的热传递水平,与此同时,能保持对气体侧结垢较小的影响.The approach combines laboratory scale experiments with industrial observations and numerical simulations
of full-scale heat exchangers to study the thermal,hydraulic and fouling characteristics of tube bundle heat exchangers.这种方法将实验室规模的实验与工业的观察结果和工业规模热交换器的数值仿真结合起来,以研究管束式热交换器的热特性、液力特性和污垢特性.Three arrangements are compared and the advantages of the proposed novel arrangement are demonstrated.比较了三种排列方式,所提出的新型排列方式的优点得到了实验验证.Enhanced heat transfer rates are combined with reduced pressure drop and gas-side fouling rates through careful design of the shape of the tube cross-section and reduced transverse spacing.通过仔细设计管截面的形状和缩小横向的空间,使热转换速率的提高与压降的减小结合了起来.
1年前
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