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THE EXPERIMENTAL STUDY ON WATER VAPOR CONDENSATION OF WET FLUE GAS IN A PLASTIC LONGITUDINAL FLOWING SPIRAL PLATE HEAT EXCHANGER

机译：纵板流动螺旋板换热器中湿烟气水蒸气冷凝的实验研究

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The heat transfer performance of a plastic longitudinal spiral heat exchanger with wet flue gas was investigated experimentally. The heat transfer performance without condensation was compared to convection heat transfer of a fluid flowing in a tube and between parallel plates with equivalent hydraulic diameters. The transport characteristics of flue gas flowing in axial direction in the spiral channel are similar to those for flow between parallel plates. The experimental results for wet flue gas with condensation in the heat exchanger indicated that the heat transfer included significant amounts of both single-phase convection and condensation, which is quite different from that for pure vapor condensation. The classical film model was modified to describe the vapor condensation phenomenon in the vapor-gas mixture. The predictions agree reasonably well with the experimental results.

机译：实验研究了带有湿烟气的塑料纵向螺旋换热器的传热性能。将没有冷凝的传热性能与在管中以及具有相等水力直径的平行板之间流动的流体的对流传热进行了比较。在螺旋形通道中沿轴向流动的烟道气的输送特性与平行板之间的流动特性相似。换热器中带有冷凝水的湿烟气的实验结果表明，传热包括大量的单相对流和冷凝，这与纯蒸汽冷凝的情况大不相同。修改了经典的膜模型以描述蒸气-气体混合物中的蒸气冷凝现象。这些预测与实验结果相当吻合。

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《National heat transfer conference;NHTC2001》|2001年|p.439-444|共6页
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作者
L. Jia; J. D. Sun; T. B. Chen; X. F. Peng;
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中图分类一般工业技术;
关键词
plastic heat exchanger; vapor-gas mixture; wet flue gas; convection; condensation; heat transfer; film model; spiral channel;

机译：塑料热交换器蒸气-气体混合物;湿烟气对流;缩合;传播热量;电影模型;螺旋通道;

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3. Effects of water vapor condensation on the convection heat transfer of wet flue gas in a vertical tube [J] . L.Jia, X.F.Peng, Y.Yan International Journal of Heat and Mass Transfer . 2001,第22期

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5. Experimental and numerical studies of condensing heat exchangers used in flue gas water recovery systems. [D] . Dunbar, Stephen. 2010

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THE EXPERIMENTAL STUDY ON WATER VAPOR CONDENSATION OF WET FLUE GAS IN A PLASTIC LONGITUDINAL FLOWING SPIRAL PLATE HEAT EXCHANGER

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