Construction and application analysis of overall energy system for regenerative thermal oxidizers （RTOs）

WEI Ziqiang; LU Zhaoyang; QU Xiaolei; LI Ming; XU Zunzhu; CHEN Hongrui; CHEN Weijie

doi:10.13205/j.hjgc.202606021

Volume 44 Issue 6

Jun. 2026

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2026 > 44(6): 202-208

WEI Ziqiang, LU Zhaoyang, QU Xiaolei, LI Ming, XU Zunzhu, CHEN Hongrui, CHEN Weijie. Construction and application analysis of overall energy system for regenerative thermal oxidizers （RTOs）[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(6): 202-208. doi: 10.13205/j.hjgc.202606021

Citation:

WEI Ziqiang, LU Zhaoyang, QU Xiaolei, LI Ming, XU Zunzhu, CHEN Hongrui, CHEN Weijie. Construction and application analysis of overall energy system for regenerative thermal oxidizers （RTOs）[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(6): 202-208. doi: 10.13205/j.hjgc.202606021

Citation:

WEI Ziqiang, LU Zhaoyang, QU Xiaolei, LI Ming, XU Zunzhu, CHEN Hongrui, CHEN Weijie. Construction and application analysis of overall energy system for regenerative thermal oxidizers （RTOs）[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(6): 202-208. doi: 10.13205/j.hjgc.202606021

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Construction and application analysis of overall energy system for regenerative thermal oxidizers （RTOs）

doi: 10.13205/j.hjgc.202606021

1. School of the Environment, Nanjing University, Nanjing 210046, China;
2. Academy of Environmental Planning and Design, Co., Ltd. Nanjing University, Nanjing 210093, China

Received Date: 2025-06-20
Accepted Date: 2025-07-21
Rev Recd Date: 2025-07-10

Available Online: 2026-07-06

Abstract

Abstract

In order to provide a theoretical basis for the energy-saving combustion of regenerative thermal oxidizers （RTOs）， it is necessary to analyze the energy nodes during RTO operation， refine the heat balance accounting， and establish an overall energy system for RTOs. Taking a three-chamber RTO as the research object and the entire RTO device as the analytical system， this study calculated the enthalpy of exhaust gas as it entered the RTO furnace at different stages. A whole-process heat balance model was established to systematically analyze the processes of exhaust gas preheating， combustion， heat recovery， and heat loss transfer. To address the dynamic heat exchange inside heat accumulators， the coupling of multiple gas streams， and boundary heat loss under complex working conditions， an improved energy accounting method was proposed. The longitudinal temperature distribution function of heat accumulators was introduced to address the difficulties in heat accounting inside the accumulator chamber. A thermodynamic system covering 11 key internal energy nodes of the RTO device was constructed. Combined with the design characteristics of RTO operation in different industries， this study analyzed the application scope of the overall energy system， which can be adjusted by modifying the equilibrium terms according to actual conditions， thus ensuring that the construction of the overall energy system has wide applicability. By constructing an RTO energy system for a glove manufacturing plant and conducting thermal balance calculations for verification， the prediction accuracy of outlet temperature can be improved from 14.3% to 2.8%， providing a theoretical basis for future research on intelligent energy-saving combustion.
- thermal storage oxidizer,
- overall energy system,
- heat balance accounting,
- heat loss,
- dynamic heat exchange

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References(16)

References

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