Modeling and control simulation of a small-scale diffusion flame under direct-current electric fields

doi:10.11949/j.issn.0438-1157.20151470

CIESC Journal ›› 2016, Vol. 67 ›› Issue (7): 2777-2783.DOI: 10.11949/j.issn.0438-1157.20151470

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Modeling and control simulation of a small-scale diffusion flame under direct-current electric fields

SHI Yanling¹, GAN Yunhua^2,3

1. Engineering Basis for Teaching and Training Center, South China Agricultural University, Guangzhou 510640, Guangdong, China;
2. School of Electric Power, South China University of Technology, Guangzhou 510640, Guangdong, China;
3. Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, Guangzhou 510640, Guangdong, China

Received:2015-09-18 Revised:2016-04-07 Online:2016-07-05 Published:2016-07-05
Supported by:
supported by the National Natural Science Foundation of China (51376066, 51611130194), the State Key Laboratory of Engines, Tianjin University (K2016-01), the Project on the Integration of Industry, Education and Research from Guangdong Province and the Ministry of Education (2012B09100156) and the Central Universities Fundamental Research Project in SCUT (201522083).

直流电场下小尺度扩散火焰建模与控制仿真

史艳玲¹, 甘云华^2,3

1. 华南农业大学工程基础教学与训练中心, 广东广州 510640;
2. 华南理工大学电力学院, 广东广州 510640;
3. 广东省能源高效清洁利用重点实验室, 广东广州 510640

通讯作者: 甘云华
基金资助:
国家自然科学基金项目（51376066，51611130194）；内燃机燃烧学国家重点实验室开放基金项目（K2016-01）；广东省教育部产学研结合项目（2012B091000156）；中央高校基本科研业务费项目（201522083）。

Abstract

Abstract:

Charged particles in the flame produced by combustion of hydrocarbon fuels provided an alternative control option via external electric fields. The liquid ethanol was used as fuel. A stainless steel tube with an inner diameter of 0.9 mm was used as the nozzle and an external direct-current electric field was applied. The voltage-current characteristics of a small scale diffusion flames under the electric field were identified. The combustion system can be assumed as an equivalent circuit model. According to the theory of circuit, the change rules of flame equivalent resistance were obtained. The ion production was used as a sensor and a classical simple PID closed control method was used to adjust the flame. The simulation results showed that the system designed in present paper had well anti-jamming capability. The present study can supply some certain guidelines for the control and stable operation of microscale combustor.

Key words: PID closed loop control, microscale, combustion, direct-current electric fields, flame model, simulation, fuel

摘要：

烃类燃料的燃烧使火焰中含有带电粒子，因此通过外加电场可以实现对微小尺度下液体燃料的燃烧控制。采用液体乙醇为燃料，内径0.9 mm不锈钢管为喷管，外加高压直流电场，得到小尺度扩散火焰伏安特性曲线。将燃烧系统等效成电路模型，根据电路理论得到火焰等效电阻变化规律。产生的离子电流作为被调量，运用简单的经典PID闭环控制，实现了对火焰的控制。仿真结果表明，设计的控制系统具有较好的抗干扰能力，为微型燃烧器的控制和稳定运行提供理论指导和参考依据。

关键词: PID闭环控制, 微尺度, 燃烧, 直流电场, 火焰模型, 模拟, 燃料

CLC Number:

TK16

SHI Yanling, GAN Yunhua. Modeling and control simulation of a small-scale diffusion flame under direct-current electric fields[J]. CIESC Journal, 2016, 67(7): 2777-2783.

史艳玲, 甘云华. 直流电场下小尺度扩散火焰建模与控制仿真[J]. 化工学报, 2016, 67(7): 2777-2783.

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Modeling and control simulation of a small-scale diffusion flame under direct-current electric fields

直流电场下小尺度扩散火焰建模与控制仿真

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