中文摘要：

通过开发已知入口参数计算壅塞特性的毛细管模型，并将其应用到带毛细管的多支路换热器仿真模型中，引入相应的换热器各支路的制冷剂流量分配辅助方程，给出一种适合带毛细管调节制冷剂流量分配的换热器的仿真模型和算法。将仿真过程中各支路上毛细管可能出现的壅塞组合情况归为无毛细管壅塞、部分支路毛细管壅塞和全部支路毛细管都壅塞3种类型并分别进行分析。与试验数据对比表明：所开发的毛细管模型的毛细管流量特性的计算误差在±6％之内，带毛细管调节制冷剂流量的换热器仿真模型的换热和压降仿真误差分别小于±5％、±15％。

英文摘要：

A novel algorithm for heat exchanger containing capillaries is presented by developing and applying a model for choked capillary with known inlet refrigerant parameter only into the model for multi-path heat exchanger containing capillaries as well as introducing auxiliary equations into it to redistribute the refrigerant mass flow rate when there are capillaries chocked. The situation of capillaries choked or not during simulation process is concluded into 3 types of no capillary choked, part capillaries choked and all capillaries on all paths choked. The model and algorithm are verified with experimental data. The verification results show that the deviations for predicting refrigerant flow rate in capillary is less than ±6%, the deviations for predicting heat transfer and pressure drop characteristics of heat exchanger are within ±5% and ± 15%, respectively.