考虑环境温度变工况的分液冷凝有机朗肯循环系统优化设计

doi:10.12052/gdutxb.190004

Abstract

Abstract: Organic Rankine cycle (ORC) is one of the most potential low-grade thermal-power conversion technologies, and the selection of design conditions and the system design and operation method considering variable conditions are of great significance for reducing the annual power generation cost or improving the annual power generation efficiency of the system. A synchronous optimization model of equipment structure parameters and system operation parameters of waste heat driven ORC system is established and a solution strategy proposed. Considering the characteristics of ambient temperature changing with seasons, four environmental temperatures are selected as the design conditions, the optimal design scheme is obtained respectively, based on the four design structures, while the annual operation scheme optimized, and the synthesis of annual variable conditions under different system configurations compared. The results show that it is important to optimize the system parameters and equipment structure parameters simultaneously to improve the system performance. With different environmental design temperatures, the optimal design structure and operation scheme are different. The system can be optimized according to the environmental temperature of multiple variable working conditions to optimize the annual operation scheme.

Key words: waste heat recovery, organic Rankine cycle, off-design, annual performance of the system

CLC Number:

TK121

Qiu Guan-fu, Luo Xiang-long, Chen Jian-yong, Yang Zhi, Chen Ying. An Off-design Optimization of Liquid Separation Condenser-based Organic Rankine Cycle Under Different Ambient Temperature[J].Journal of Guangdong University of Technology, 2019, 36(06): 99-104,110.

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An Off-design Optimization of Liquid Separation Condenser-based Organic Rankine Cycle Under Different Ambient Temperature

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