System design and control for waste heat recovery of automotive engines based on Organic Rankine Cycle
System design and control for waste heat recovery of automotive engines based on Organic Rankine Cycle
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基于有机朗肯循环的汽车发动机余热回收系统设计与控制
DOI：
10.1016/j.energy.2016.02.065
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发表时间：
2016-05
期刊：
影响因子：
9
通讯作者：
Zhuge Weilin
中科院分区：
文献类型：
--
作者：
Shi Rongqi;He Tianqi;Peng Jie;Zhang Yangjun;Zhuge Weilin
在本研究中，提出了一种新颖实用的 ORC（有机朗肯循环）系统设计。可应用于汽车发动机废气等非稳态热源的余热回收。根据废气温度和质量流量的变化特点，设计了EGMR（废气混合物再循环）回路。从蒸发器流出的废气被部分回收并与实时发动机废气混合，然后在蒸发器中再循环。此外，还引入了储能模块，将其简化为内部有管子的金属块。建立了一种基于ADRC（主动抗扰控制）的控制方法，由蒸发压力外子环控制器、废气质量流量分配控制分配器和阀门开度内子环控制器组成。通过数值模拟对系统进行了评估，结果表明系统工作稳定可靠，蒸发压力控制误差低于0.1%，过热度波动为与传统的ORC系统相比，循环效率和整体能源效率均显着提高。此外，由于不需要额外的热力循环或工作流体，该系统架构比大多数以前的系统改进设计更加实用和简单。
In this study, a novel and practical design for an ORC (Organic Rankine Cycle) system is presented. It can be applied to waste heat recovery of unsteady heat sources, such as exhaust gas of automobile engines. According to the variation characteristics of exhaust gas temperature and mass flow rate, the EGMR (Exhaust Gas Mixture Recirculation) loop is designed. The exhaust gas flowing out of the evaporator is partially recovered and mixed with the real-time engine exhaust gas, and then led to recirculation in the evaporator. Moreover, an energy storage module is also introduced, which is simplified as a metal block with internal tubes. A control approach based on ADRC (Active Disturbance Rejection Control is established. It is composed of an outer sub-loop controller for the evaporating pressure, a control allocator for mass flow rate allocation of the exhaust gas, and an inner sub-loop controller for the valve openings. The system is evaluated according to the numerical simulations. The results show that it can work steadily and reliably. The control error of the evaporating pressure is lower than 0.1%, and the fluctuation of the superheating is less than 1 °C. Compared with the conventional ORC system, both the cycle and the overall energy efficiencies are increased significantly. Furthermore, since no extra thermodynamic cycle or working fluid is demanded, the system architecture is more practical and simpler than most previous designs of system improvement.
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柴油机 (DE) 触底有机朗肯循环 (ORC) 的仿真和热力学分析
影响因子：
9
作者：
Shu, Gequn;Tian, Hua;Wei, Haiqiao;Liu, Lina
通讯作者：
Liu, Lina
影响因子：
11.2
作者：
Horst, Tilmann Abbe;Rottengruber, Hermann-Sebastian;Ringler, Juergen
通讯作者：
Ringler, Juergen
DOI：
--
发表时间：
2011-07
期刊：
--
影响因子：
--
作者：
N. Espinosa;Ignacio Gil-Roman;Damien Didiot;V. Lemort;B. Lombard;S. Quoilin
通讯作者：
N. Espinosa;Ignacio Gil-Roman;Damien Didiot;V. Lemort;B. Lombard;S. Quoilin
DOI：
10.1109/acc.2003.1242516
发表时间：
2003-06
期刊：
Proceedings of the 2003 American Control Conference, 2003.
影响因子：
--
作者：
Zhiqiang Gao
通讯作者：
Zhiqiang Gao
影响因子：
3.1
作者：
H. C. Jung;S. Krumdieck
通讯作者：
H. C. Jung;S. Krumdieck