• Title/Summary/Keyword: fire protection system

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A Study on Real Condition Estimation for Fire Protection Safety Management System Builds (소방안전경영시스템 구축을 위한 실태평가에 관한 연구)

  • Kang, Gil-Soo;Choi, Jae-Wook
    • Fire Science and Engineering
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    • v.27 no.2
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    • pp.18-24
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    • 2013
  • Goverment and enterprises have been devoting a lot of dffort in order to prevent the loss of human and property due to a large, diversified fire, explosion, global warming and disasters caused by natural phenomena. But Enterprises came forward and running in the economy priority policy for profit-seeking until now in order to meet the macro purpose of quality improvement of national life and welfare promotion in company with National growth, as a result of lax risk management have had to endure the loss of precious lives and property. According to the '2007 Survey of public safety for the activation of the safety culture' of National Emergency Management Agency [NEMA], a insensitivity of safety in our society was surveyed 'a serious level'. In this study, surveyed need of 'step-by-step fire protection safety management system builds' in order to prevent fire safety accident and improvement of safety awareness level through a systematic management and real condition estimation of not only large business that can control risk management, but also small business that has a big risk to occur accident easily according to small budget and organization.

A Study on a PCB Manufacturing Plant's Fire Risk Assessment due to the Mitigation of Fire Protection Zone and an Improvement Way through Estimation of Sprinkler Demand Water Flow Rate (방화구획 완화에 따른 PCB공장의 화재위험평가 및 스프링클러 요구살수유량 산정을 통한 기준개선안에 관한 연구)

  • Oh, Chan-Wook;Oh, Ryun-Seok;Choi, Jun-Ho
    • Fire Science and Engineering
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    • v.33 no.2
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    • pp.56-62
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    • 2019
  • A sprinkler is a fire extinguishing equipment installed in a protected area where a detector or head detects a fire and automatically puts out the fire. However, the Ministry of Land, Infrastructure and Transport's "Regulations on Building Evacuation and Fire Protection Standards, etc." stipulate that fire compartment area should be reduced to three times by installing sprinkler facilities in the case of factories and warehouses. In this study, fire hazard was analyzed for a real PCB factory which mitigated the fire protection zone by sprinkler installation, and the head opening characteristics of sprinkler facilities through computer simulation, installation standards of sprinkler facilities, thermal performance, operating range, and the amount of water sprayed to identify the problems of operation of sprinkler facilities in case of fire, and to suggest the grounds such as required sprinkling flow rate for system improvement.

A Comparative Study on Domestic and Foreign Standards for Air Supply for the Improvement of a Smoke Control System for High-Rise Buildings (국내 고층건축물의 제연설비 성능 개선을 위한 국내·외 급기량 관련 기준 비교연구)

  • Kim, Hye-Won;Lee, Byeong-Heun;Jin, Seung-Hyeon;Lee, Su-Gak;Kim, Jung-Yup;Kwon, Young-Jin
    • Fire Science and Engineering
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    • v.33 no.4
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    • pp.105-111
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    • 2019
  • In South Korea, smoke control systems are designed according to the fire safety standards NFSC501 and NFSC 501A. However, there is a problem in that the design values are incompatible when measuring the performance of the system after the design construction for calculating the leakage crack area described in the standards. Therefore, we compared the standards for smoke control systems from South Korea, Japan, and the United Kingdom. In South Korea, designs are conducted uniformly according to the NFSC 501A Manual, but in Japan and the United Kingdom, designs consider smoke temperature, duct loss, and fire floor air supply. Furthermore, they use larger values than in South Korea.

A Study of Planning and Application of Fire Protection Facilities in Remodeling (리모델링시 소방시설의 계획 및 적용에 관한 연구)

  • Jung, Jin-Ho;Yun, Myung-O;Je, Jin-Ju
    • Fire Science and Engineering
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    • v.22 no.5
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    • pp.90-98
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    • 2008
  • There are diverse barriers such as limits to space, time, economy, technology, institution, and etc. in remodeling construction compared to new construction and it needs to overcome such limits. Consequently, for effective performance of construction, planning and application fit for remodeling characteristics shall be made available in time and various studies into remodeling for each construction category are necessary to achieve this. Taking these into account this study conducted research of the followings to draw out necessary steps for planning and application of fire protection facilities in remodeling, to overcome various barriers that may arise during any project operations, and to provide useful materials for construction of reasonable and effective fire protection system.

A Comparison Study on Fire Water Supply Duration and Capacity of Water Based Fire Suppression System of the United States, Japan, China and Korea (우리나라, 중국, 일본, 미국 수계소화설비 소화수 공급시간 및 소화수원에 대한 비교 연구)

  • Min, Se-Hong;Nam, Yu-Hyun
    • Fire Science and Engineering
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    • v.27 no.4
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    • pp.13-20
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    • 2013
  • Buildings in Korea have been getting higher recently and been being changed environmentally since the Korean fire standard was released in 1968. It should be established to make a appropriate correspondence of fire fighting against the those environmental changes. Most of all, fire water capacity which is basis of fire fighting service is a very significant factor. In this paper, the Korean fire water capacity and fire water duration were compared with China, Japan and the United states. Furthermore, fire water capacity, fire water duration, flow rate were compared by hazard classification, occupant use, number of floor and area with water based fire suppression system. This study has been surveyed to show what are difference, similarity, advantage and disadvantage on fire water capacity in the Korean standard comparing with neighboring countries like China, Japan as well as the United states. This study could be found what level the Korean fire water capacity is. So it suggests about more developed standard on fire water capacity with the result of analysis and comparison.

Problems and Improvement Directions of Fire Protection Designing and Supervising Jobs (소방 설계·감리업의 문제점 및 개선방향에 관한 연구)

  • Cha, Jong-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.12
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    • pp.8745-8752
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    • 2015
  • Since many accidents have occurred in Korea in these days, many people have lost their health and have been damaged. The damages caused by fires which occur to many buildings where many people always reside takes a substantial share of the total damages. And since the proportions of the domestic fire protection designing/supervising industries are relatively much disregarded compared to other kinds of work, it is in the situation that there are many cases of serious damages because the fire protection equipment didn't exert the proper functions on fire after a building is constructed since the supervision against the poor construction along with the inadequate design. In order to improve such situations, in case of the design industry, the criteria on registration and workforce placement, the scope of operation, the design documents required when requesting the agreement to the construction permits, the responsibilities and authorities about the jobs of the fire protection facility designers must be improved and, in case of supervising industry, the registration criteria, the operation scope and the kinds, methods, targets and criteria of supervision, the criteria on the additional placement of assistant supervisors, the contents and scope of work must be improved, the PQ system and Public Supervision System must be reviewed and the systems for preventing any poor supervision must be improved in order to pursue the security of the people and their properties at the same level as the other kinds of work by preparing for the firm position and foundation of the fire protection design and supervision.

A Numerical Study to Analyze Safety of Pressure Leakage Monitoring System of Gas Extinguishing Agent (가스소화약제 압력누기감시장치의 안전성 분석을 위한 수치적 연구)

  • Go, A-Ra;Lim, Dong-Oh;Son, Bong-Sei
    • Fire Science and Engineering
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    • v.30 no.4
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    • pp.103-110
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    • 2016
  • While the demand for the gas system fire extinguishers increases every year, there are insufficient safety measures for assessing the extinguishing performance, such as system safety and reliability in the preparation of increasing demand, which has emerged as a social problem. One of the most critical causes of accidents occurring with the gas extinguishing system is pressure leakage from the extinguishing agent storage container. This is considered to be one of the critical factors on which the success of fire suppression depends. In this study, its safety measure was studied, Because it was deemed urgently necessary. The newly developed pressure leakage monitoring system is a system monitoring storage condition, pressure, leakage and discharge of the storage container related to agent concentration, which is one of the critical factors for fire suppression. This was developed to be applicable to the $CO_2$ and HFC-23 systems. Therefore, for structural safety analysis, the safety performance was verified by the fluid structure coupling analysis of the safety problems that may occur when the pressure leakage monitoring system is applied to the gas fire extinguisher. For analysis programs, the FloEFD program from Mentor Graphics was used for computational fluid dynamics analysis and ABAQUS from Dassault Systems was used for structural analysis. From the result of numerical analysis, the structure of $CO_2$ did not develop plastic deformation and its safety was verified. However, plastic deformation and deviation issue occurred with the HFC-23 monitoring system and therefore verified the structural safety of pressure leakage monitoring system by data obtained from redesigning and adjusting the condition of numerical interpretation three times.