• Fire Science and Engineering
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• v.30 no.1
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• pp.1-5
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• 2016

Cases of cardiac arrests due to cardiovascular ailments have increased recently., portable Current portable resuscitators which can be automatically supply oxygen operated by the pressure of supplied oxygen without manual or electronic actuators are now widely used in emergency worldwide. However, reductions in Pressure drop characteristics through the extended use of this type of resuscitator, however, is are not well-known described. This paper describes the reduction in pressure loss drop performance of the various holes in within the flow control disc of with various hole size of the portable resuscitators using on breathing resistance through the CFD simulation, and suggests the an optimum optimal design of the hole shapes for the minimization of alteration in order to minimize this pressure drops.

• Fire Science and Engineering
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• v.30 no.2
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• pp.87-91
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• 2016

Recently, it has been increasing an incidence of heart diseases which is a causative factor in sudden death as Korean population structure has been changing to an aging society. There is growing needs for A portable ventilator which automatically be operated by the pressure of the supplied oxygen and has been spread worldwide. So, we would like to present test methods in accordance with the performance requirements which are important for components of a respirator and a portable ventilator itself. And also would like to find the most suitable condition of internal pressure reduction for the performance requirements according to the changing conditions of internal pressure reduction setting of a portable ventilator.