Analysis of the Influence of Protected Room Volume Changes on CO2 Extinguishing Agent Requirements and Leakage Compensation Ratio

doi:10.15683/kosdi.2026.3.31.180

All Issue

2026 Vol.22, Issue 1 Preview Page Next Page

Original Article

Analysis of the Influence of Protected Room Volume Changes on CO₂ Extinguishing Agent Requirements and Leakage Compensation Ratio 방호구역 체적 변화가 CO₂ 소화약제 요구량 및 누설보정율에 미치는 영향 분석: 박선영¹ㆍ한용택²*
Sun Young Park¹, Yong Taek Han²*; ¹Graduate Student, Department of Fire & Disaster protection Engineering, Hoseo University, Asan, Republic of Korea
²Assocaite Professor, Department of Fire & Disaster protection Engineering, Hoseo University, Asan, Republic of Korea

31 March 2026. pp. 180-189

PDF

Abstract

Purpose: This study aims to quantitatively identify the influence of changes in protected-room volume on the required amount of CO₂ extinguishing agent, as well as the effect of leakage compensation ratio (LCR) on variations in agent quantity. Method: Door Fan Tests were conducted on eleven operational protected rooms to collect leakage data, and linear regression analysis was performed to numerically evaluate the effect of room volume on CO₂ agent requirements. Result: Several protected rooms exhibited relatively higher leakage compensation ratio compared to others and among them, cases were identified in which the actual amount of charged CO₂ agent was lower than the design requirement despite the high LCR. Conclusion: As the protected-room volume increases, the total amount of CO₂ extinguishing agent required also increases, and the proportion of additional agent needed for leakage compensation expands proportionally with volume. These findings highlight the importance of considering both room volume and leakage characteristics in the design and verification of CO₂ fire suppression systems.

Keywords

CO₂

Protected Enclosure

Leakage Compensation Ratio

Door Fan Test

Regression Analysis

연구목적: 본 연구는 방호구역 체적 변화가 CO₂ 소화약제 요구량에 미치는 영향과, 누설보정비율이 약제량 변화에 미치는 영향을 정량적으로 규명하는 것을 목적으로 하였다. 연구방법: 실제 운용 중인 11개 방호구역을 대상으로 Door Fan Test를 진행하여 자료 수집했고, 선형회귀분석을 통해 방호구역 체적이 CO₂ 약제량에 미치는 영향을 수치로 확인하였다. 연구결과: 일부 방호구역에서는 다른 구역들에 비해 누설보정비율이 상대적으로 높게 나타났으며, 이들 중 누설보정비율이 높음에도 불구하고 실제 투입된 CO₂ 약제량이 설계 기준보다 낮은 사례도 확인되었다. 결론: 방호구역 체적이 증가할수록 CO₂ 약제의 총 사용량이 함께 증가하는 경향이 뚜렷하게 나타났으며, 누설 보정을 위한 약제량의 비율 역시 체적에 비례해 확대되는 양상이 관찰되었다. 이러한 결과는 방호구역 체적 변화와 누설 특성을 고려한 CO₂ 소화설비 설계 및 검증의 중요성을 시사한다.

키워드

이산화탄소

방호구역

누설보정비율

도어 팬 테스트

회귀분석

References

Choi, Y.M. (2012). Study on the Extinguishing Concentration of Low Pressure Carbon Dioxide Extinguishing System Discharge. Master Thesis, School of Industry Pukyoung National University.
Hong, S.H. (2020). A Study on Securing the Protection Area of the Gas-Based Fire Extinguishing System through the Door Fan Enclosure Integrity Test. Master Thesis, School of Engineering Yonsei University.
Jung, D.W. (2014). “How to use door fan fest.” Journal of Korea Fire Insureance Association, No. 153, pp. 23-29.
Kim, Y.C., Jo, I.H., Lee, S.K.(2015). “A study on the precautions effects of the enclosure integrity test for the gaseous extinguishing systems: Focusing on the power plant.” Journal of Fire Science and Engineering, Vol. 29, No. 1, pp. 60-66. 10.7731/KIFSE.2015.29.1.060
Kong, I.C., Kim, H.K., Choi, D.C., Kim, I.T. (2016). “A study on the operation improvement of door fan test.” Journal of Society of Disaster Information, Suwon, pp. 295-297.
Lee, J.S., Eo, G., Choi, C.H., Jung, J.W.,Kim, H.S. (2016). “Development of rainfall-flood damage estimation function using nonlinear regression equation.” Journal of Korea Society of Disaster Information, Vol. 21, No. 1, pp. 74-88. 10.15683/kosdi.2016.3.31.74
Lee, S.M., Moon, S.W., Ryu, S.H.(2012). “A study on the direct discharge test for verifying design concentration and soaking time for CO₂ fire extinguishing system of total flooding.” Journal of Fire Science and Engineering, Vol. 26, No. 6, pp. 15-23. 10.7731/KIFSE.2012.26.6.015
Lee, T.K. (2002). A Comparative Analysis of Technical Standards on Gaseous Fire Suppression Systems. Master Thesis, School of Industrial Technology and Information Kyonggi University.
National Law Information Center. (2024). Fire Safety Standards for Carbon Dioxide Fire Extinguishing Systems (NFTC 106), National Fire Agency Notification, No. 2024-46.
Park, M.S., Seo, C.M., Yoon, H.S., Park, K.S. (2024). “A study on how to evaluate appropriate ventilation rate of indoor facility handling hazardous substances by their flammable and explosive properties.” Journal of Society of Disaster Information, Vol. 20, No. 2, pp. 293-301. 10.15683/KOSDI.2024.6.30.293
Park, S.Y. (2024). A Study on the Effect of Increased Protected Zone Voulme on CO₂ Angent Quantity and Leakage Compensation. Master Thesis, Hoseo University.
Son, J.H., Park, S.J. (2014). “Development of architecture design programs CO₂ emissions.” Journal of Society of Disaster Information, Incheon, pp. 83-84.

Information

Publisher :The Korean Society of Disaster Information
Publisher(Ko) :한국재난정보학회
Journal Title :Journal of the Society of Disaster Information
Journal Title(Ko) :한국재난정보학회논문집
Volume : 22
No :1
Pages :180-189
DOI :https://doi.org/10.15683/kosdi.2026.3.31.180

[1] Choi, Y.M. (2012). Study on the Extinguishing Concentration of Low Pressure Carbon Dioxide Extinguishing System Discharge. Master Thesis, School of Industry Pukyoung National University.

[2] Hong, S.H. (2020). A Study on Securing the Protection Area of the Gas-Based Fire Extinguishing System through the Door Fan Enclosure Integrity Test. Master Thesis, School of Engineering Yonsei University.

[3] Jung, D.W. (2014). “How to use door fan fest.” Journal of Korea Fire Insureance Association, No. 153, pp. 23-29.

[4] Kim, Y.C., Jo, I.H., Lee, S.K.(2015). “A study on the precautions effects of the enclosure integrity test for the gaseous extinguishing systems: Focusing on the power plant.” Journal of Fire Science and Engineering, Vol. 29, No. 1, pp. 60-66. 10.7731/KIFSE.2015.29.1.060

[5] Kong, I.C., Kim, H.K., Choi, D.C., Kim, I.T. (2016). “A study on the operation improvement of door fan test.” Journal of Society of Disaster Information, Suwon, pp. 295-297.

[6] Lee, J.S., Eo, G., Choi, C.H., Jung, J.W.,Kim, H.S. (2016). “Development of rainfall-flood damage estimation function using nonlinear regression equation.” Journal of Korea Society of Disaster Information, Vol. 21, No. 1, pp. 74-88. 10.15683/kosdi.2016.3.31.74

[7] Lee, S.M., Moon, S.W., Ryu, S.H.(2012). “A study on the direct discharge test for verifying design concentration and soaking time for CO₂ fire extinguishing system of total flooding.” Journal of Fire Science and Engineering, Vol. 26, No. 6, pp. 15-23. 10.7731/KIFSE.2012.26.6.015

[8] Lee, T.K. (2002). A Comparative Analysis of Technical Standards on Gaseous Fire Suppression Systems. Master Thesis, School of Industrial Technology and Information Kyonggi University.

[9] National Law Information Center. (2024). Fire Safety Standards for Carbon Dioxide Fire Extinguishing Systems (NFTC 106), National Fire Agency Notification, No. 2024-46.

[10] Park, M.S., Seo, C.M., Yoon, H.S., Park, K.S. (2024). “A study on how to evaluate appropriate ventilation rate of indoor facility handling hazardous substances by their flammable and explosive properties.” Journal of Society of Disaster Information, Vol. 20, No. 2, pp. 293-301. 10.15683/KOSDI.2024.6.30.293

[11] Park, S.Y. (2024). A Study on the Effect of Increased Protected Zone Voulme on CO₂ Angent Quantity and Leakage Compensation. Master Thesis, Hoseo University.

[12] Son, J.H., Park, S.J. (2014). “Development of architecture design programs CO₂ emissions.” Journal of Society of Disaster Information, Incheon, pp. 83-84.

Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

All Issue