Sensitivity analysis and component modelling of a packed-type liquid desiccant system at partial load operating conditions
Sensitivity analysis and component modelling of a packed-type liquid desiccant system at partial load operating conditions
复制标题
DOI：
10.1002/er.4440180703
复制
发表时间：
1994-09
影响因子：
4.6
通讯作者：
Arshad Y. Khan
中科院分区：
文献类型：
--
作者：
Arshad Y. Khan
预测全年能耗需要对空调系统各部件的部分负荷性能进行评估。填充型或线圈型液体干燥剂装置是混合液体干燥剂系统的基本部件。因此，预测填充型混合液体干燥剂系统的逐小时性能以估计其年能量消耗需要填充型系统在部分负载条件下的性能是已知的。为此，对填充式液体干燥剂系统的传热传质性能进行了详细的灵敏度分析，以确定重要的性能参数。两个输出参数-焓效率和湿度效率-被定义来呈现结果。基于详细的灵敏度分析得出的结论，开发了一个简单的模型来预测吸收器和再生器在部分负荷操作条件下的性能。性能预测使用简单的模型进行比较，从详细的分析沿着与另一个现有的模型，这是在文献中的预测。简单模型与其他两个模型的预测结果非常吻合。
Prediction of annual energy consumption requires the partial load performance evaluation of each component in an air conditioning system. A packed-type or a coil-type liquid desiccant apparatus is an essential component of a hybrid liquid desiccant system. Therefore, predicting the hour by hour performance of a packed-type hybrid liquid desiccant system to estimate its annual energy consumption requires that the performance of a packed-type system be known at partial load conditions. For this purpose a detailed sensitivity analysis of heat and mass transfer performance of a packed-type liquid desiccant system is carried out to identify important performance parameters. Two output parameters — enthalpy effectiveness and humidity effectiveness — are defined to present the results. Based on the conclusions drawn from the detailed sensitivity analysis, a simple model is developed to predict the performance of an absorber and a regenerator at partial load operating conditions. Performance predictions using the simple model are compared with the predictions from the detailed analysis along with another existing model which is available in the literature. The simple model is in excellent agreement with the predictions of other two models.