Byung-Chan Cho
Byung-Chan Cho has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
- In-Young Choi
Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Republic of Korea
2 shared publications - Jo-Chun Kim
Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Republic of Korea
2 shared publications - Trieu-Vuong Dinh
International Climate and Environmental Research Center, Konkuk University, Seoul 05029, Republic of Korea
2 shared publications - Byeong-Gyu Park
Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Republic of Korea
1 shared publication - Byeong-Gyu Park
Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Republic of Korea
1 shared publication - Da-Hyun Baek
Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Republic of Korea
1 shared publication
Latest Publications
- Open Access
- 13 December 2024
- Published by MDPI AG in Chemosensors
- Vol. 12 (12) , 262
Investigation of Long-Term Performance of a Proposed Cost-Effective HCl Non-Dispersive Infrared Analyzer at Real Stationary Sources
The zero drift, interference, and sensitivity of an HCl analyzer based on a non-dispersive infrared (NDIR) technique can be improved to develop a cost-effective solution for continuous emission monitoring systems (CEMSs). To achieve these improvements, the same bandpass filter technique, negligible interference bandpass filter, and optimal path length are applied to the analyzer. Laboratory inspections and long-term field trials are conducted to evaluate the performance of the analyzer. A metalworking factory and a cement factory are selected for field trials. In laboratory inspections, the relative error of the analyzer is less than 1%, aligning closely with the results obtained from standard ion chromatography methods. Moreover, the basic specifications of the proposed analyzer are comparable to those of commercial HCl analyzers. In field trials, the NDIR analyzer shows a significant bias compared to the standard method. However, when considering the difference between HCl emission levels and HCl emission standards, the relative errors are less than 10%. These results suggest the proposed NDIR analyzer is a practical option for the CEMS of metalworking and cement factories. However, seasonal variations should be considered when the temperatures of gas emissions are low.
- 13 December 2024
- Published by MDPI AG in Chemosensors
- Vol. 12 (12) , 262
Open AccessInvestigation of Long-Term Performance of a Proposed Cost-Effective HCl Non-Dispersive Infrared Analyzer at Real Stationary Sources
The zero drift, interference, and sensitivity of an HCl analyzer based on a non-dispersive infrared (NDIR) technique can be improved to develop a cost-effective solution for continuous emission monitoring systems (CEMSs). To achieve these improvements, the same bandpass filter technique, negligible interference bandpass filter, and optimal path length are applied to the analyzer. Laboratory inspections and long-term field trials are conducted to evaluate the performance of the analyzer. A metalworking factory and a cement factory are selected for field trials. In laboratory inspections, the relative error of the analyzer is less than 1%, aligning closely with the results obtained from standard ion chromatography methods. Moreover, the basic specifications of the proposed analyzer are comparable to those of commercial HCl analyzers. In field trials, the NDIR analyzer shows a significant bias compared to the standard method. However, when considering the difference between HCl emission levels and HCl emission standards, the relative errors are less than 10%. These results suggest the proposed NDIR analyzer is a practical option for the CEMS of metalworking and cement factories. However, seasonal variations should be considered when the temperatures of gas emissions are low.