Basing on the conception of local drag coefficient in the pipeline field, the pressure drop coefficient of fluid in each inclined flue under different condition of pressed brick was calculated.

借鉴管路计算中局部阻力系数的概念，进一步计算了斜道区不同压砖情况下的压力损失系数。

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Using mixed tube bundle, high heat transfer coefficient can be acquired as well as pressure drop not too high.

采用混合管束既可获得高的总传热系数和管内外传热膜系数，又可以使管内压降不致过大。

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And then, based on the results of experimental data, the authors propose a set of equations for calculating the pressure drop coefficient in Angle pipes under different flow conditions.

然后再根据试验结果，提出不同流动情况下的转弯局部阻力系数的计算公式。

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