Distributed integrated energy system integration and optimization forfull-spectrum solar and hydrogen energy utilization
翟宇凯王炯超吴寒逸王瑞林赵传文
ZHAI Yukai;WANG Jiongchao;WU Hanyi;WANG Ruilin;ZHAO Chuanwen
南京师范大学能源与机械工程学院浙江大学建筑工程学院
针对现有太阳能与氢能协同的混合能源系统存在系统能量利用率低、能源供需不匹配等问题,提出了全光谱太阳能与氢能利用协同的分布式综合能源架构。考虑太阳能综合输出效果最佳,确立了光谱分频窗口为700~1100nm。以江苏省南京市某一工业园区为供能对象,通过对园区全年逐时的电、冷、热、生活热水负荷需求进行分析,进行了系统设计,并通过Matlab搭建了全工况动态数字模型。经过模拟仿真得出新系统较参比系统在全年的能量利用率及温室气体减排量上分别提升了10.43%和655660kg,验证了新系统在能效以及环境友好性方面的优越性。分别探究了太阳能聚光面积和储热装置容量对系统性能的影响规律,在综合考虑系统性能和经济成本下,对新系统开展了容量配置优化,得出了新系统的最佳容量配置是太阳能聚光面积为6000m2,储热装置容量比Nstore为0.9。经过容量配置优化后,系统的能效达到29.03%,比初始设定下系统的能效提高了3.56%。采用全光谱太阳能与氢能利用协同的分布式综合能源系统,不仅提高了能源利用效率,还有效减少了温室气体排放,为实现可持续发展目标提供了新的思路和方法。
Existing hybrid energy systems using solar and hydrogen often face challenges such as low energy utilization efficiency andmismatches between energy supply and demand. To address these issues,a distributed integrated energy architecture for full-spectrumsolar and hydrogen utilization is proposed. Considering the optimal output of solar energy,a spectral splitting window of 700–1100 nm isestablished. Targeting an industrial park in Nanjing,Jiangsu Province,as the energy supply object,the study analyzed the park’s hourlydemand for electricity,cooling,heating,and domestic hot water over the course of a year. A system was designed,and a full-conditiondynamic digital model was developed in Matlab. Simulation results showed that, compared to a reference system, the new systemimproved annual energy utilization efficiency by 10.43% and reduced greenhouse gas emissions by 655660 kg,demonstrating its superiorenergy efficiency and environmental friendliness. The effects of solar concentrator area and thermal storage capacity on systemperformance were explored individually. After balancing system performance and economic costs, capacity optimization for the newsystem was performed,identifying an optimal configuration with a solar concentrator area of 6000 m² and a thermal storage capacity Nstoreof 0.9. Post- optimization, the system’s energy efficiency reached 29.03%, an increase of 3.56% from the initial configuration. Thisdistributed integrated energy system,which synergistically utilizes full-spectrum solar and hydrogen energy,not only enhances energy utilization efficiency but also significantly reduces greenhouse gas emissions, offering a novel approach to achieving sustainabledevelopment goals.
全光谱太阳能氢能利用协同方式综合能源系统光谱分频窗口容量配置优化
full-spectrum solar energy;hydrogen energy utilization;synergistic approach;integrated energy system;spectral division window;capacity optimizion of thermal storage devices
主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会