基于C++和智能图表合成最优换热网络的程序设计

Programming of intelligent graphs to synthesis optimized heat exchanger networks based on C++

在合成最优换热网络时,存在着调优迭代计算时间长、过程复杂等问题,本文围绕这一课题,以智能图表法为理论基础,结合C++的编程思想,以Microsoft Visual Studio 2008为开发平台,利用换热网络优化节能技术编写了换热网络合成软件。该软件具有以下功能:根据冷、热物流相关数据,计算换热网络夹点、生成温—焓组合曲线图并标出夹点温度,计算出最大热回收量和最小能量体用量,根据物流匹配换热规则和智能图表对相关冷热物流进行匹配,计算出冷热物流热交换的热负荷、换热面积、操作费用等,自动合成最优换热网络并将计算结果存于文本文件result.txt中。经实例核算后与其它文献数据对比结果可靠合理,表明该程序应用方便,计算速度快,可大大简化合成换热网络的计算过程。

In heat exchanger networks long time computation and complex calculation were inevitable. In this paper, the intelligent graphs as the theoretical basis, and combined with the C＋＋ programming ideas, software of synthesis of optimal heat exchanger networks was designed. Takes Microsoft Visual Studio 2008 as development platform. According to cold and hot streams related data, calculate the maximum thermal energy recovery and the minimum utility usage. And the software can draw composite curves and pinch point. At the same time, heat transfer areas and operating costs can be calculated, optimal heat exchanger networks is also synthesized basing on the rule of machine between cold and hot stream and intelligent graphs. The computed results are saved in text document result.txt. Indicated after the example calculation that this procedure application convenience, the computation speed is fast, the result is reliable. Simplifies the computational process of synthesis heat transfer network obviously.