论文部分内容阅读
提出水夹点、热夹点和碳夹点的内在联系。利用序贯方法,依照多目标夹点分析方法及其步骤,通过案例对此方法进行验证。主要分如下3个步骤:(1)运用水夹点技术确定出最小新鲜水用量,并运用修正的NNA算法确定出水网络;(2)由得到的水网络图,提取各物流数据,运用热夹点技术确定出最小冷热公用工程用量;(3)由热公用工程数据和二氧化碳排放目标,利用碳夹点技术确定最小清洁能源用量和能源分配方案。通过实例分析,最终得到实例的系统需求最小新鲜水125.94 kg/s、最小热公用工程为5289 kW,最小冷公用工程为3.36 kW。在二氧化碳排放限制的情况下,得出能源合理分配方案,以及最小清洁能源用量2029 kJ/s。同时得到节水效率为23.24%,热公用工程削减81.34%,冷公用工程削减99.98%,节能效率显著。
Proposed internal points of water pinch, hot pinch and carbon pinch. Using the sequential method, according to the multi-objective pinch analysis method and its steps, this method is verified through the case. Mainly divided into the following three steps: (1) the use of water pinch technology to determine the minimum amount of fresh water, and use the revised NNA algorithm to determine the water network; (2) from the water network map, extract the logistics data, the use of heat clip Point technology to determine the minimum amount of hot and cold utilities; and (3) using carbon pinch technology to determine minimum clean energy usage and energy allocation from thermal utility data and carbon dioxide emissions targets. According to the example analysis, the final system is obtained with the minimum fresh water requirement of 125.94 kg / s, the minimum heat utility rate of 5289 kW and the minimum cold utility rate of 3.36 kW. In the case of carbon dioxide emission limits, a reasonable allocation of energy is derived, with a minimum clean energy consumption of 2029 kJ / s. At the same time, the water-saving efficiency is 23.24%, the thermal utility project is reduced by 81.34%, the cold public utility project is reduced by 99.98%, and the energy-saving efficiency is remarkable.