论文部分内容阅读
为以CO_2为工质的喷射器在冷热电联产中的应用提供依据,文中首先对该系统核心部件喷射器进行性能分析。基于喷射器及CO_2-[emim][Tf_2N]本身的特性、系统的运行特征,在VC++的环境下,根据喷射器设计及性能计算公式进行编程,经理论计算得到,工作压力、蒸发温度、背压及引射流体质量流量对系统中喷射器喷射系数的影响规律。结果表明:与背压不同,在给定工况下,工作压力、蒸发温度、引射流体的流量的提高,对喷射系数分别提高39%、60%、78%。
This study provides the basis for the application of CO_2 injectors in the cogeneration process. First of all, the performance of the injector of the system core is analyzed. Based on the characteristics of ejector and CO_2- [emim] [Tf_2N], the operating characteristics of the system are programmed according to the ejector design and performance calculation formula under the environment of VC ++. The theoretical calculation is based on theoretical calculation, working pressure, evaporation temperature, Pressure and ejecting fluid mass flow on the ejector injection coefficient in the system. The results show that, different from the backpressure, the injection coefficient increases by 39%, 60% and 78% respectively under the given working conditions, working pressure, evaporation temperature and flow rate of the injection fluid.