A Study on Reducing Fire Non-Suppression Probability through the Application of Air Sampling Detectors in Nuclear Power Plants

doi:10.15683/kosdi.2025.9.30.501

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2025 Vol.21, Issue 3 Next Page

Original Article

A Study on Reducing Fire Non-Suppression Probability through the Application of Air Sampling Detectors in Nuclear Power Plants 공기흡입형 감지기 적용에 따른 원자력발전소 화재진압실패확률 저감에 관한 연구: 고민혁¹ㆍ이영만²ㆍ김동우³ㆍ양유근⁴ㆍ최두찬⁵*
Min-Hyeok Ko¹, Young-Man Lee², Dong-Woo Kim³, Yu-Gean Yang⁴, Doo-Chan Choi⁵*; ¹Chief Researcher, KF UBIS CO., Ltd., Seoul, Republic of Korea
²Vice President, Alllitelife CO., Ltd., Anyang, Republic of Korea
³Assistant Researcher, Alllitelife CO., Ltd., Anyang, Republic of Korea
⁴Graduate Student, Department of Construction Safety, Kyonggi university, Suwon, Republic of Korea
⁵Chief Executive Officer, KF UBIS CO., Ltd., Seoul, Republic of Korea

30 September 2025. pp. 501-506

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Abstract

Purpose: This study aims to calculate the fire detection failure probability using a developed air sampling detector as a method to reduce the NSP (Non-Suppression Probability) for fire CDF(Core Damage Frequency) reduction. Method: As suggested in NUREG-2180, the application methodology for air sampling detectors is presented. The calculation process of Unreliability and Unavailability was used to analyze the results of 400 field installations. Result: The fire detection failure probability of the developed air sampling detector was calculated as 0.0028, confirming a 46% reduction compared to the existing smoke detector failure probability of 0.05. Conclusion: It is judged that this can ultimately contribute to CDF reduction. It is expected that new methods will be proposed through future comprehensive studies considering the severity factor influenced by cabinet fires and cable fires.

Keywords

Core Damage Frequency

Non-Suppression Probability

Air Sampling Detector

NUREG-2180

연구목적: 본 연구는 화재 CDF 저감을 위해 NSP(화재진압실패확률)을 저감하기 위한 방법으로 개발된 공기흡입형 감지기를 통해 화재 감지 실패 확률을 계산하고자 한다. 연구방법: NUREG-2180에서 제시한 바와 같이 공기흡입형 감지기의 대해 적용 방법론을 제시하고 있으며 Unreliability, Unavailability의 계산과정을 통해 400대의 현장 설치 결과를 계산하였다. 연구결과: 개발된 공기흡입형 감지기의 화재 감지 실패확률은 0.0028로 기존 연기감지기 감지 실패확률 0.05의 46% 저감을 할 수 있음을 확인하였다. 결론: 최종적으로 CDF 저감에 기여할 수 있을 것으로 판단되며 추후 케비닛 화재, 케이블 화재에 영향을 고려하는 심각도와 복합적인 연구를 통해 새로운 방법이 제시될 것으로 기대된다.

키워드

노심손상빈도

화재진압실패확률

공기흡입형 감지기

NUREG-2180

References

Cleary, T. (2014). Performance of Aspirated Smoke Detectors in Nuclear Power Plants. National Institute of Standards and Technology, NIST Technical Note 1837, Gaithersburg, MD, USA.
Electric Power Research Institute (EPRI) (2013). The Fire Protection Equipment Surveillance Optimization and Maintenance Guide. EPRI 1025284, Palo Alto, CA, USA.
Hostikka, S., Janardhan, R.K., Riaz, U., Sikanen, T. (2017). “Fire-induced pressure and smoke spreading in mechanically ventilated buildings with air-tight envelopes.” Fire Safety Journal, Vol. 91, pp. 380-388. 10.1016/j.firesaf.2017.04.006
Matala, A., Hostikka, S. (2011). “Probabilistic simulation of cable performance and water based protection in cable tunnel fires.” Nuclear Engineering and Design, Vol. 241, No. 12, pp. 5263-5274. 10.1016/j.nucengdes.2011.09.014
Röwekamp, M., Dreisbach, J., Klein-Heßling, W., McGrattan, K., Miles, S., Plys, M., Riese, O. (2008). “International Collaborative Fire Modeling Project (ICFMP).” Nuclear Engineering and Design, Vol. 238, No. 12, pp. 3108-3115.
U.S. Nuclear Regulatory Commission (2005). NUREG/CR-6850: EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities. Washington, DC, USA.
U.S. Nuclear Regulatory Commission (2016a). NUREG-2178: Refining And Characterizing Heat Release Rates From Electrical Enclosures During Fire (RACHELLE-FIRE). Washington, DC, USA.
U.S. Nuclear Regulatory Commission (2016b). NUREG-2180: Determining the Effectiveness, Limitations, and Operator Response for Very Early Warning Fire Detection Systems in Nuclear Facilities (DELORES-VEWFIRE). Washington, DC, USA.

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 : 21
No :3
Pages :501-506
DOI :https://doi.org/10.15683/kosdi.2025.9.30.501

[1] Cleary, T. (2014). Performance of Aspirated Smoke Detectors in Nuclear Power Plants. National Institute of Standards and Technology, NIST Technical Note 1837, Gaithersburg, MD, USA.

[2] Electric Power Research Institute (EPRI) (2013). The Fire Protection Equipment Surveillance Optimization and Maintenance Guide. EPRI 1025284, Palo Alto, CA, USA.

[3] Hostikka, S., Janardhan, R.K., Riaz, U., Sikanen, T. (2017). “Fire-induced pressure and smoke spreading in mechanically ventilated buildings with air-tight envelopes.” Fire Safety Journal, Vol. 91, pp. 380-388. 10.1016/j.firesaf.2017.04.006

[4] Matala, A., Hostikka, S. (2011). “Probabilistic simulation of cable performance and water based protection in cable tunnel fires.” Nuclear Engineering and Design, Vol. 241, No. 12, pp. 5263-5274. 10.1016/j.nucengdes.2011.09.014

[5] Röwekamp, M., Dreisbach, J., Klein-Heßling, W., McGrattan, K., Miles, S., Plys, M., Riese, O. (2008). “International Collaborative Fire Modeling Project (ICFMP).” Nuclear Engineering and Design, Vol. 238, No. 12, pp. 3108-3115.

[6] U.S. Nuclear Regulatory Commission (2005). NUREG/CR-6850: EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities. Washington, DC, USA.

[7] U.S. Nuclear Regulatory Commission (2016a). NUREG-2178: Refining And Characterizing Heat Release Rates From Electrical Enclosures During Fire (RACHELLE-FIRE). Washington, DC, USA.

[8] U.S. Nuclear Regulatory Commission (2016b). NUREG-2180: Determining the Effectiveness, Limitations, and Operator Response for Very Early Warning Fire Detection Systems in Nuclear Facilities (DELORES-VEWFIRE). Washington, DC, USA.

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

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