• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2008년도 춘계학술논문발표회 논문집
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• pp.104-107
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• 2008

호스릴옥내소화전설비와 옥내소화전설비의 성능을 비교 시험하였다. 그 결과 조작성측면에서 호스릴옥내소화 전설비가 우수하고 그 성능이 옥내소화전설비와 같음을 확인하였다. 호스릴옥내소화전설비의 성능조건이 0.17 MPa 이상의 방수압력에서 130 LPM 이상의 방수량을 가질 경우 옥내소화전설비를 대체할 수 있음을 알 수 있었다.

• 대한안전경영과학회지
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• 제22권1호
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• pp.33-44
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• 2020

This study analyzed how the installation of a pressure gauge in the indoor fire hydrant of an apartment building affected identifying pressurized water in the pipe, making it easier to conduct internal inspection on the fire suppression system, and ensuring reliability of fire suppression. The following are the study's results: First, identifying pressurized water in the indoor firefighting pipe had a positive effect on the installation of a pressure gauge in the indoor fire hydrant. This implies that a higher level of identification of pressurized water in the indoor firefighting pipe had a positive impact on improving the installation and use of a pressure gauge in the indoor fire hydrant. Second, making it easier for the fire safety officer to inspect the fire suppression system had a positive effect on the installation of a pressure gauge in the indoor fire hydrant. This suggests that if it becomes easier for the apartment building's stakeholder to conduct internal inspection or the firefighting facility manager to carry out inspection on the fire suppression system, it would have a positive effect on the installation of a pressure gauge in the indoor fire hydrant. Finally, ensuring reliability in fire suppression had a positive effect on the installation of a pressure gauge in the indoor fire hydrant. This implies that if it becomes easier to identify pressurized water in the indoor firefighting pipe, for the fire safety officer to conduct internal inspection, or for the firefighting facility manager to carry out inspection in accordance with the fire suppression system's internal inspection requirements, it would increase reliability in fire suppression, making it more necessary to install a pressure gauge in the indoor fire hydrant.

• 한국화재소방학회논문지
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• 제26권3호
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• pp.67-72
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• 2012

건축물 실내에서의 화재발생 시 초기 소화설비로 적용하고 있는 옥내소화전설비와 스프링클러설비는 초기화재 진압용으로 큰 역할을 담당하고 있다. 최근 건축물의 지붕형태는 차별화된 지역문화와 디자인이 접목된 다양한 형태의 건축물이 건립되고 있다. 차별화된 지붕형태, 즉 일부 건축물의 지붕형태가 경사(박공)형태로 계획 건립되고, 또한 공중정원을 활용한 조망계획을 하다 보니 옥내소화전설비의 방수압력을 측정하는데 있어 옥상공간은 제한적이고, 너무 협소하여 옥내소화전 소방호스를 전개(최대 5개)하여 방수압력 측정하는데 있어 문제점이 도출되고 있다. 이러한 문제점을 보완하여 옥내소화전설비의 효율적인 관리와 화재 시 초동조치가 가능하도록 개선방안을 연구하고자 한다.

• 상하수도학회지
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• 제29권3호
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• pp.371-380
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• 2015

Particulate matters in a water distribution system are main causes of turbidity and discoloration of tap water. They could be removed by conventional or uni-directional flushing in a water distribution system. The behaviors and required flow velocity of particles are not well known for their flushing. A model water main and hydrant were made from transparent acrylic pipe of 30mm and 16mm in diameter, respectively. We analyzed the effect of flushing velocity, particle density, and particle diameter. We found that the existence of break-though velocities at which particles begin to be removed, and which are affected by their physical properties. The removal efficiencies seemed to be influenced by resuspension capabilities related to their upward movement from the bottom. Heavy particles like scale were hard to remove through upflow hydrant because the falling velocity, calculated using Stokes' law, was higher. Particle removal efficiencies of upward hydrant and downward drain showed minor differences. Additionally, the length between hydrant and control valve affected flushing efficiency because the particulate matters were trapped in this space by inertia and recirculating flow.

• 대한안전경영과학회지
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• 제23권3호
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• pp.115-122
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• 2021

In this study, the purpose of this study was to examine the effect of twisting in the preparation of waterproofing in the process of unfolded donut-type staking method fire hoses in indoor hydrant system. The central pull-out method caused more twisting than the rolling method, and there was no significant difference in the number of twists according to the pull-out method in the case of male and female students. It was found that the time it took to untwist and prepare waterproofing was much shorter for male students. The angle valve and hose are connected, and the time to untwist and prepare for waterproofing after withdrawing the fire hose with the hose and nozzle connected was shorter than the unconnected state. In the rolling method, when a hose connected with two 15 m fire hoses was used and the angle valve-hose was connected, but the hose-nozzle was not connected, the least kinking occurred. The time to untwist and prepare for waterproofing was also the shortest. As a result, in the withdrawal method of the donut-type loaded fire hose in the indoor hydrant system, it is a rolling method rather than a central withdrawal method. With the angle valve and hose connected, unfold the fire hose with the hose and nozzle connected, if a large number of people unwind the twisted hose, the time to prepare for waterproofing can be shortened.

• 대한안전경영과학회지
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• 제23권4호
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• pp.61-66
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• 2021

In this study, according to the staking method of the fire hose in the indoor hydrant system, the number of kinks when the fire hose is deployed was measured and analyzed to examine how the staking method of the fire hose affects the kink when the hose is deployed. The fire hose staking method was classified into three types: donut-type, accordion-type, and hose hanger-type, and the walking speed and number of kinks were measured by repeating the experiment 5 times for male and female students. The results of the study are as follows. (1) Among the three types of fire hose staking methods, the donut-type staking method had an average of 92 times for male students and 86 times for female students on average. (2) The accordion-type and hose hanger-type staking methods showed similar results with an average of one or two kinks for both male and female students. (3) Regardless of the staking method, it was found that in general, male students with high walking speed had more kinking than female students with slow walking speed.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2011년도 추계학술논문발표회 논문집
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• pp.91-95
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• 2011

반발력을 계산하는 여러 가지 식이 있다. 이 식들이 어떻게 유도되고 어디에 사용되는지를 고찰하였다. 각 식들이 옥내소화전이나 옥외소화전의 노즐 같은 실제 소방설비에 적용될 때에는 무엇을 주의하여야하는지에 대하여 알아보고 적절한 사용방법을 제시하였다.

• 한국화재소방학회논문지
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• 제33권1호
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• pp.92-98
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• 2019

이 연구는 옥내소화전설비에 자동화점추적 기능을 부가하여 화재 발생위치에 따라 방수노즐이 이동하여 유효하게 방수하는지를 방수중심 지향여부, 방수범위 유지여부, 방수형태의 일관성 유지여부로 구분하여 실험하고 결과를 고찰하였다. 첫째, 방수중심 실험결과는 최초 화원의 중심을 찾는 정확도는 시스템 설계에 있어서 유효한 결과를 도출하게 됨을 확인하였다. 둘째, 방수범위 실험결과 방수최대반경의 물 분사를 하는 경우 방수범위의 오차는 허용공차 범위 내에 들어가는 것으로 확인되었다. 마지막으로 방수형태 실험결과 형태의 변화 없이 정상동작하여 설정블록에 대하여 설계상태가 이상 없음을 확인하였다.

• 보존과학연구
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• 통권31호
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• pp.155-171
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• 2010

Wooden cultural heritages have many factors of fires and structural characteristics vulnerable to the fire extinguishing. Also, they are surrounded with forests and so remote from fire stations, which make it difficult to handle it quickly when fires break out. Wooden cultural heritages made of wood materials belong to the general fire in a Class A. Taking characteristics such as a smoldering and a backfire from the that fire of wooden materials into consideration, extinguishing the fire by the cooling system is the most effective. If the fire can't be put out at the early stage, it is almost impossible to protect wooden cultural heritages from the fire, because wooden structures can be destroyed in a high temperature and in a short time and it takes around average 7 minutes to reach its peak of flames in the process of a fire. According to the geographical and environmental situation of the cultural heritages, currently, the fire-prevention facilities such as the auto fire detector for the prompt detection, the water mist fire suppression system for the 1st early and urgent fire suppression and the outdoor fire hydrant and the water curtain etc. for the 2nd full-scale suppression and the prevention of the fire gaining force are being installed for the wooden cultural heritages.

• 한국화재소방학회논문지
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• 제25권6호
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• pp.98-103
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• 2011

현재 국내 건축물은 일반주택, 빌라 등을 제외한 대부분 건물에 소방시설을 적용하고 있다. 그러나 소방시설의 활용은 이천물류창고 화재, 코리아 냉동 창고 화재, 대구지하철 참사와 최근 부산의 고층 오피스텔 화재 등에서 나타낸 문제점과 같이 제대로 작동하지 못함으로서 인명과 재산피해 등이 지속적으로 발생되고 있다. 본 연구에서는 소방시설 중 가장 널리 사용되고 초기 화재에 중요하게 사용되는 자동화재탐지설비, 비상경보설비, 피난설비, 옥내소화전의 관리 실태를 파악하고 이에 대한 문제점을 데이터화하여 실제 화재시 소방시설의 적극적인 활용을 위한 해결점을 찾고자 한다.