Abstract In this paper, a state-space model of a transport membrane condenser (TMC) based on a lumped heat and mass transfer model is developed and verified experimentally. The simulated results are in well agreement with the experimental data. Based on the state-space model, the transient relationships between the input parameters (inlet flue gas temperature and humidity ratio, inlet water temperature, flue gas and water flow rates), output parameters (outlet flue gas temperature and humidity ratio, outlet water temperature) and performance parameters (heat and water recovery fluxes, recovery efficiency) of the TMC are obtained and analyzed. It can be found that the perturbation of the flue gas flow rate has a larger effect on the heat and water recovery performances compared to that of the inlet flue gas humidity ratio. The performance parameters change by less than 1% with the inlet flue gas temperature step increasing from 50°C to 53°C. The inlet water parameters have significant effects on the performances. With the inlet water temperature step increasing from 15°C to 16°C, there is a hysteresis time in the response of the outlet water temperature. The comparative analysis based on the state-space model with a simply and rapid solution process can be used to determine the major input variables affecting the performances. The results are useful for the dynamic control of the TMC to obtain required stable performances.

中文翻译：

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传输膜冷凝器瞬态行为的状态空间模型

摘要 在本文中，基于集中传热传质模型的传输膜冷凝器（TMC）的状态空间模型被开发和实验验证。模拟结果与实验数据非常吻合。基于状态空间模型，输入参数（入口烟气温湿度比、入口水温、烟气和水流量）、输出参数（出口烟气温湿度比、出口水温）之间的瞬态关系) 和 TMC 的性能参数（热和水回收通量、回收效率）得到并分析。可以发现，与入口烟气湿度比相比，烟气流速的扰动对热量和水回收性能的影响更大。随着入口烟气温度步长从 50°C 增加到 53°C，性能参数的变化小于 1%。进水参数对性能有显着影响。随着进水温度步长从 15°C 增加到 16°C，出水温度响应存在滞后时间。基于状态空间模型的比较分析具有简单快速的求解过程，可用于确定影响性能的主要输入变量。结果对于 TMC 的动态控制以获得所需的稳定性能很有用。出水温度的响应存在滞后时间。基于状态空间模型的比较分析具有简单快速的求解过程，可用于确定影响性能的主要输入变量。结果对于 TMC 的动态控制以获得所需的稳定性能很有用。出水温度的响应存在滞后时间。基于状态空间模型的比较分析具有简单快速的求解过程，可用于确定影响性能的主要输入变量。结果对于 TMC 的动态控制以获得所需的稳定性能很有用。