基于时间序列聚合的有机朗肯循环系统优化方法

doi:10.12052/gdutxb.200177

摘要/Abstract

摘要： 有机朗肯循环(Organic Rankine Cycle, ORC) 发电技术在回收中低温余热和中低温太阳能热发电方面具有广阔的应用前景，系统优化设计对提高系统发电效率和降低系统全年发电成本具有重要意义。本文建立了太阳能驱动ORC系统设备结构参数和系统运行参数同步优化模型；考虑到太阳能辐射量和环境温度随时间变化的特性，基于时间序列聚合法获得5个聚合点作为设计工况，分别得到了5个聚合设计工况下最优设计方案。结果表明：太阳能辐射量和环境设计温度不同，设计的系统结构参数和运行方案不同；在环境温度值低、太阳辐射值高时度电成本 (Electricity Production Cost, EPC) 最低，ORC效率最高。

关键词: 有机朗肯循环, 设计工况, 时间序列聚合, 优化

Abstract: Organic Rankine cycle (ORC) power generation technology has a wide application potential in the recovery of medium-to-low temperature waste heat and medium-to-low temperature solar thermal power generation. The system optimization design is of great significance to improve system power generation efficiency and reduce the annual generation cost of the system. A synchronous optimization model of the equipment structure parameters and system operation parameters of the solar-driven ORC system is established. Considering the characteristics of solar radiation and ambient temperature changes with time, based on the time series aggregation method, five aggregation points were obtained as design conditions, and the optimal design schemes under the five aggregation design conditions are obtained. The results show that the solar radiation and the environmental design temperature are different, and the designed system structure parameters and operating schemes are different; When the solar radiation is low and the solar radiation value is high, the electricity production cost (EPC) is the lowest and the ORC efficiency is the highest.

Key words: organic Rankine cycle, design conditions, time series aggregation, optimization

中图分类号:

TK121

危由兴, 罗向龙, 胡凌锋, 陈健勇, 梁颖宗, 杨智, 陈颖. 基于时间序列聚合的有机朗肯循环系统优化方法[J]. 广东工业大学学报, 2022, 39(06): 98-106.

Wei You-xing, Luo Xiang-long, Hu Ling-feng, Chen Jian-yong, Liang Ying-zong, Yang Zhi, Chen Ying. Optimization Method of Organic Rankine Cycle System Based on Time Series Aggregation[J]. Journal of Guangdong University of Technology, 2022, 39(06): 98-106.

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