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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2013, Vol. 14 Issue (9): 671-678    DOI: 10.1631/jzus.A1300198
Energy and Power Engineering     
Development of non-premixed porous inserted regenerative thermal oxidizer
Jun-chun Zhang, Le-ming Cheng, Cheng-hang Zheng, Zhong-yang Luo, Ming-jiang Ni
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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Abstract  In this study, a porous inserted regenerative thermal oxidizer (PRTO) system was developed for a 125 kW industrial copper-melting furnace, due to its advantages of low NOx emissions and high radiant efficiency. Zirconium dioxide (ZrO2) ceramic foams were placed into the combustion zone of a regenerative thermal oxidizer (RTO). Different performance characteristics of the RTO and PRTO systems, including pressure drop, temperature distribution, emissions, and energy efficiency, were evaluated to study the effects of the porous inserts on non-premixed CH4 combustion. It was found that the PRTO system achieved a significant reduction in the NOx emission level and a fuel saving of approximately 30% compared to the RTO system. It is most suitable for a lean combustion process at an equivalence ratio <0.4 with NOx and CO emission levels within 0.002%–0.003% and 0.001%–0.002%, respectively.

Key words： Porous media      Regenerative thermal oxidizer (RTO)      Non-premixed CH4 combustion     
Received: 03 June 2013      Published: 02 June 2013
CLC:  TK16  
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Jun-chun Zhang
Zhong-yang Luo
Le-ming Cheng
Cheng-hang Zheng
Ming-jiang Ni
Cite this article:

Jun-chun Zhang, Le-ming Cheng, Cheng-hang Zheng, Zhong-yang Luo, Ming-jiang Ni. Development of non-premixed porous inserted regenerative thermal oxidizer. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2013, 14(9): 671-678.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1300198     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2013/V14/I9/671

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