[1]马新灵,连麒飞,雷萌,等.混合工质的选择对ORC系统性能的影响[J].郑州大学学报(工学版),2021,42(6):62-68.[doi:10.13705/j.issn.1671-6833.2021.04.015]
　Ma Xinling,Lian Qifei,Lei Meng,et al.Impacts of Selection of Zeotropic Mixture on Performance of ORC System[J].Journal of Zhengzhou University (Engineering Science),2021,42(6):62-68.[doi:10.13705/j.issn.1671-6833.2021.04.015]
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混合工质的选择对ORC系统性能的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
42
期数:
2021年6期
页码:
62-68
栏目:
出版日期:
2021-11-10

文章信息/Info

Title:
Impacts of Selection of Zeotropic Mixture on Performance of ORC System
作者:
马新灵,连麒飞,雷萌,孟祥睿,魏新利,李志彬
郑州大学 机械与动力工程学院，河南 郑州 450001
Author(s):
Ma Xinling; Lian Qifei; Lei Meng; Meng Xiangrui; Wei Xinli; Li Zhibin;
School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China

关键词:
Keywords:
waste heat utilization;  organic Rankine cycle;  zeotropic mixtures;  grey correlation method
DOI:
10.13705/j.issn.1671-6833.2021.04.015
文献标志码:
A
摘要:
为了探究非共沸混合工质对有机朗肯循环( OＲC) 系统性能的影响，用 ASPEN PLUS 软件建立了 OＲC 系统的流程模型，在 60～ 100 ℃蒸发温度下，研究了混合工质和纯工质的热力性能和经济性能，并基于灰色关联法综合分析系统性能。结果表明: 在给定条件下，很多混合工质的性能优于纯工质，其中 3Ｒ600a /7Ｒ601a 的性能最佳; 在蒸发温度为 100 ℃ 时，3Ｒ600a /7Ｒ601a 的灰色关联度最大，为 0. 994，其净输出功率、热效率和平均化发电成本 LEC 分别为 56. 59 kW、11. 76%和 0. 1312 /kWh; 与采用纯工质 Ｒ600a 相比，3Ｒ600a /7Ｒ601a 的净输出功率和热效率分别提高了 31. 73%、11. 05%，LEC 降低了11. 06%。研究结果表明，将目标纯工质与其输出功率相近的另一种新工质以合适比例混合，得到具有较大温度滑移的混合工质，该混合工质可使 OＲC 系统的性能得到显著提高。
Abstract:
The process model of ORC system was established with Aspen Plus software to investigate the impacts of zeotropic mixtures on system performance. The thermal performance and economic performance of mixtures were studied when 60～100 ℃ evaporation temperature, and the system performance was comprehensively analyzed based on the gray correlation method. The results showed that the performance of many mixtures was better than their pure working fluids, especially 3R600a/7R601a. When evaporation temperature was 100 ℃, the grey correlation grade of 3R600a/7R601a reached the maximum 0.994, and its net output power, thermal efficiency, LEC were 56.59 kW, 11.76%, and 0.1312 width=5,height=12,dpi=110/kWh, respectively. Compared with the pure working fluid R600a, the net output power and thermal efficiency were increased by 31.73% and 11.05% respectively, LEC was decreased by 11.06%. The result showed that the target pure working fluid was mixed with another new working fluid with similar output power to obtain a zeotropic mixture with a large temperature glide, and the zeotropic mixture could significantly improve the performance of ORC system.

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更新日期/Last Update: 2021-12-17