• Fire Protection Technology
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• s.12
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• pp.10-17
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• 1992

Dampers which being installad in air duct are Valume damper, fire damper, leakage rated damper, but among them fire damper and leakage rated damper are used for preventing the spread of flame, hot gas and smoke through the duct. this report is aimed to intorduce the test example of the multiple fire damper which was conducted F.I.L.K, simuetaneously to investigate the performent standards and Structure of the fire damper which settled in several countries.

• Journal of the Korean Society of Industry Convergence
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• v.20 no.5
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• pp.425-430
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• 2017

This study propose CAE analysis of fire damper and design of the damper control system. Through the design of the damper system for ANSYS-CFX heat transfer. As a result of the analysis, continuance equation of the damper control. Climate system. Finaily, We have obtained a fire damper solution by using orthogonal array. The fire damper of the set of fixture and alveolus are made by using a CAE software. Also, the optimum design offshore structures. The new H-120 class fire damper was designed. In the near future, fire resistance test was carried out to obtain class H-120 thermal insulation of fire dampers according to a hydrocarbon fire conditions. The test results showed that the insulation of the damper blade was an important factor in the fireproof performance of fire dampers concerning the coaming length minimum 500mm on the unexposed side as specified test standard.

• Journal of Power System Engineering
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• v.18 no.2
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• pp.19-24
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• 2014

This research conducts CAE analysis of fire damper and design of damper controlling system. The prediction of the design heat transfer was done the answer of fire damper could be obtained by using continuity equation of damper controlling and orthogonal array. Through the design analysis of optimal offshore construction, new fire damper of H-120 class was designed. Accordingly, this equipment will be tested in actual offshore construction. Finally, we could obtain fire damper of optimal design with orthogonal array. With the CAE results of this research, The offshore plant will obtain eco-friendly fire damper with a method to select optimal condition of fire damper with orthogonal array.

• Fire Science and Engineering
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• v.25 no.4
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• pp.42-47
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• 2011

This study carried out the design and analysis of complex damper as basis study for development of complex damper for ventilation and fire protection. This study established design and analysis theory of complex damper based on process, kinematics mechanism and mechanism modelling of complex damper. And this study established engineering data construction and a source technology that can design each element of complex damper through motion analysis simulation based on design and analysis theory. Therefore, it got result that can apply comprehensively in development of complex damper for ventilation and fire protection from this study. Also, it sees that can ready control means and technological countermeasure of smoke to developed of complex damper with this study.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.55 no.2
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• pp.89-93
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• 2006

Recently as a people recognize a safety more about a high and large buildings the importance of a fire-damper which supplies fresh air into the building in case of fire increases greatly. Therefore, in this paper a fire-damper using a micro-controller is designed and fabricated. In the design of fire-damper a pressure sensor is modeled as a capacitor and the p-spice is used as a circuit simulator PIC16F72 is used as a micro-controller to drive a pressure sensor and to display a pressure value from the pressure sensor and to drive a motor to open and close a damper. A photo-coupler is used to protect a motor from a overcurrent.

• Fire Science and Engineering
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• v.27 no.1
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• pp.31-38
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• 2013

The pressurized smoke control system is important for fire safety in building because it is directly concerned with egress time of people. Even though the damper plays an essential role in the pressurized smoke control system, the phenomena of backflow smoke occurs for a certain the damper position. The research for a position of damper effects on distribution of air flow at the fire door is not performed. In this study, numerical simulation using FDS 5.5 was carried out to analyze the effect of the position of damper on flow distribution at the fire door. To simulate real situation, effects of opening and closing of fire door was considered. As a result, when HRR was between 200 kW and 400 kW, in the case which the damper was on the opposite wall of the fire door, the back flow to the vestibules was large compared to the two other cases of damper position. But when HRR was above 400 kW, Effect on damper position was not occurred.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.13 no.5
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• pp.82-89
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• 2014

In this paper, fire resistance test was carried out to obtain class H-120 thermal insulation of fire dampers according to a hydrocarbon fire conditions. Specimens were fabricated three different types according to the change of the insulation system applied to damper blade and coaming which were measured surface temperature by performing the fire resistance test. As a test result, specimen-1, 2 of an uninsulated damper blade were exceeded thermal insulation acceptance criteria at 21 minutes, 46 minutes respectively, but specimen-3 of an insulated damper blade was satisfied thermal insulation acceptance criteria during 120 minutes. The test results showed that the insulation of the damper blade was an important factor in the fireproof performance of fire dampers concerning the coaming length minimum 500 mm on the unexposed side as specified test standard.

• Journal of Advanced Marine Engineering and Technology
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• v.37 no.4
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• pp.431-437
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• 2013

In this paper, Fire resistance test was carried out to obtain class H-120 thermal insulation of fire dampers according to a hydrocarbon fire conditions. Specimens were fabricated three different types according to the change of the insulation system applied to damper blade and coaming which were measured surface temperature by performing the fire resistance test. As a test result, specimen-1, 2 of an uninsulated damper blade were exceeded thermal insulation acceptance criteria at 21 minutes, 46 minutes respectively, but specimen-3 of an insulated damper blade was satisfied thermal insulation acceptance criteria during 120 minutes. The test results showed that the insulation of the damper blade is an important factor in the fireproof performance of fire dampers concerning the coaming length minimum 500 mm on the unexposed side as specified test standard.

• Fire Science and Engineering
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• v.32 no.4
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• pp.69-74
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• 2018

This study developed a ventilation damper that can control flow rate according to pressure differential variation of the smoke control room in order to improve problems related to existing smoke management systems and maximizing performance of smoke management systems. The development damper was tested for verification of utility and performance. The supply flow of the developed ventilation damper was increased by about 1 to 5%. The results prove the effectiveness of the flow control ventilation damper by providing stable flow over the designed flow of the fan in the smoke control room. In addition, the study acquired the original technology for a flow control ventilation damper.

• Fire Science and Engineering
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• v.34 no.4
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• pp.78-86
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• 2020

In this study, numerical simulations were performed on the air egress velocity of pressurization systems in an ancillary room when a fire occurred in an apartment house. The relationship between the air supply flow rate of a damper and air egress velocity at a fire door is predicted to be linear. Additionally, a minimum flow rate of the damper, which meets national fire safety standards for air egress velocity, i.e., 0.7 m/s can be estimated. Air egress velocity at the fire door is analyzed according to the supply air direction and installation height of the damper. When the damper has an upward supply air direction and is installed at a high level, the egress velocity at the top section of the fire door is larger, whereas the soot concentration at the ancillary room is lower than when the supply direction of the damper is downward. Therefore, it is found that increasing the air egress velocity at the top section of the fire door helps to efficiently prevent the inflow of smoke.