Saving energy is crucial for utilizing membrane technology, but there is no energy parameter for understanding the relationships among membrane performance and energy. Here, φ is defined as the energy transfer efficiency of the membrane, and its numerical expression of membrane performance is poor (e.g., in the range of 10⁻²³). The method of modifying membranes is a crucial determinant for developing membrane science, but researchers using current parameters to evaluate modification methods might lead to erroneous conclusions. Hence, the newly established system θ is used to analyze the influence of different modification methods on energy consumption, which not only establish the relationship between different modification methods but also provide the research routes for future optimization methods. The main conclusions are as follows: (1) The current modification methods influence on the energy transfer efficiency of the pristine membrane by about 0.4902–3.278 × 10⁴ times; (2) Using scientific data certifies that the modified support layer of the membranes is a more effective method for reducing the energy consumption than the modified activity layer of the membranes; (3) The establishment of this system provides data support for analyzing the advantages and disadvantages of modification methods, and provides guidance for how to optimize the modification methods of membranes. Therefore, this study not only fills key knowledge gaps in membrane science, but also provides theoretical support for how to optimize membrane modification methods.

节约能源对于利用膜技术至关重要，但没有能源参数来理解膜性能与能源之间的关系。这里，φ被定义为膜的能量传递效率，其膜性能的数值表达较差(例如，在10 ^-23的范围内)。膜的修饰方法是膜科学发展的关键决定因素，但研究人员使用现有参数来评估修饰方法可能会得出错误的结论。因此，利用新建立的系统θ来分析不同修正方法对能耗的影响，不仅建立了不同修正方法之间的关系，而且为未来的优化方法提供了研究路线。主要结论如下：（1）现有的改性方法对原始膜的能量传递效率影响约为0.4902~3.278×10 ⁴倍；（2）科学数据证明，改性膜支撑层是比改性膜活性层更有效的降低能耗的方法；(3)该系统的建立为分析改性方法的优缺点提供了数据支撑，为如何优化膜的改性方法提供了指导。因此，该研究不仅填补了膜科学的关键知识空白，而且为如何优化膜改性方法提供了理论支持。