Scba 1234

Scba uses..

1. SELF CONTAINED BREATHING APPARATUS FOR CASUALITY

2. CONTENTS WORKING OF SCBA SCBA CHECKING APPLICATONS CALCULATIONS DIFFERENCE CONCLUSION ABSTRACT INTRODUCTION SOLAS REGULATION ON SCBA PARTS OF SCBA SNAPS

3. Safety is the very important factor on onboard ship. Still many accidents are happening onboard due to fire. SCBA FOR CASUALITY is a device which is used by one person during the inspection of fire location. Our project is modifying the SCBA cylinder and face mask for the usage of two persons during emergency while fighting the fire SCBA FOR CASUALITY is the firefighting equipment. It is used during fire accident on-board. Now a days safety is most important in ship. Still now SCBA FOR CASUALITY is used by only one person. But in our project we are modifying the cylinder and equipment of SCBA FOR CASUALITY for the respiration of two persons. The present cylinder onboard has the capacity time of 30minutes. So we want to increase the size of cylinder for 50 minutes. The warning alarm will be set before the 15 minutes of emptying the cylinder. ABSTRACT

4. As we know SCBA is used by one person at a time but in advanced SCBA we are increasing the capacity of the Cylinder and attaching one more outlet hose, reducing valve and face mask with previous one it is used only during the time of emergency by the suffocating person struggling during the fire The user will be able to describe important aspects of safety and demonstrate practical application as it pertains to emergency service provider operations from memory, without assistance, to an accuracy of 70% and the instructor's satisfaction. The user will be able to identify the basic functions and uses of properly donning of self-contained breathing apparatus. INTRODUCTION

5. For ship between 500-2500 tons minimum two sets are required . For ship between 2500-4000 tons minimum three sets are required. For ship 4000 tons and above minimum four sets are required. SOLAS REGULATION ON SCBA

6. SOLAS: 1)As per SOLAS regulation 2/10.10 SCBA should not be crossed over 19kg and should not less than 200 litters 2) NFPA NATIONAL FIRE PROTECTION AND ASSOCIATION 3) NIOSH NATIONAL INSTITUTE OF OCCUPATIONAL SAFTY AND HEALTH APPROVAL

7. DOUBLE CYLINDER

8. FACEPIECE OR HOOD The North face piece assembly has a four-point adjustable head harness. The face piece standard seal has a blended shape to ensure a proper fit. A standard inner-mask oral/nasal cup reduces dead-air space and CO2 buildup The North Air Hood is also available for users that prefer to wear their own eyeglasses or may have facial hair that may interfere with the sealing surface. The sealing surface of the hood is around the neck, and there may not be any hair or jewelry interfering with the neck seal. The North Air Hood is NIOSH approved for entry into an IDLIH atmosphere . The Air Hood has a hard visor with a permanent anti-fog coating that offers excellent vision, an inner oral/nasal cup to reduce CO2 build-up, and adjustable side straps for a comfortable fit. PARTS OF SCBA

9. COMPACT DEMAND VALVE (CDV) The patented Compact Demand Valve regulator combines high flow with allow profile to improve mobility . The CDV exhalation valve greatly reduces breathing resistance which allows for longer duration of cylinder use. The CDV is easily docked into the face piece using a threaded hand wheel. An optional first breath CDV is also available. PARTS OF SCBA

10. FIRST STAGE PRESSURE REDUCER Air leaves the cylinder, passes through a sintered bronze filter in the hand wheel assembly, and then continues on to the first-stage pressure reducer where it is reduced to approximately 125 psi. The reducer is a simple piston type that requires no adjustment and incorporates an automatic, self-seat- ing pressure relief valve to protect the downstream low-pressure components. It is made of high quality aluminum and is securely mounted to the cylinder. PARTS OF SCBA

11. . SNAPS

12. The cylinder consists of atmospheric air of 200 bar, 2516 lit, 8.6cub.ft. When the cylinder valve 5 open 200 bar pressure from cylinder is passed through reducing valve . In reducing valve the 200 bar pressure is reduced to 4 bar and is passed through syphon tube to reach face mask as air comes to the facemask. The pressure of air will be 1 bar which is atmosphere air pressure, as we are connecting additional buddy breather with help of non return ball valve which is three way. Buddy breather can be connected during the time of emergency to save the casualty without delay. This is simple working of SCBA 40 lit air issued for I minute Training. WORKING OF SCBA

13. DUARATION CALCULATION= VOLLUME (in litters) * PRUSSURE ( in Bars) - 10 40 lit ( i,e ) 40 is representing human being inhales 40 lit of air per minute ( i,e ) 10 is representing 10 min before alarm for safety margin FORMULA

14. CALCULATION OF CYLINDERS ALLUMINIUM ALLOY LINER WITH CARBON FIBER STEEL DUARATION CALCULATION = 6.8 * 300 -10 DUARATION CALCULATION = 6 * 300 -10 40 40 = 41minutes =35minutes

15. SCBA CHECKING Fit Checks Fit checks are to be conducted during initial selection and training, and puts on a respirator before entering a contaminated atmosphere . Negative Pressure Fit Check: 1. 1 Close off the respirator inlet or inhalation valve, using the palm of the hand over the opening 2. Gently inhale to create a slight vacuum in an attempt to cause a partial inward collapse of the face piece. .

16. 3. Maintain the vacuum inside the face piece for at least 10 seconds. 4. If vacuum is not present rescuer face piece seal and try again . Positive Pressure Fit Check : 1. Close off exhalation valve and exhale gently into the face piece. 2. The face fit is considered satisfactory if a slight positive pressure can be built up in side the face piece SCBA CHECKING

17. Basic Cylinder Inspection Inspect gauge for damage. Inspect cylinder for mechanical damage (cracks, dents, gauges) or signs of heat or chemical damage "Guideline for Visual Inspection and at Demand Valve 90 Requalification of Fiber Reinforced High Pressure Cylinders" for all wrapped cylinders .) Check that hydrostatic test date on cylinder is current. Check that cylinder valve threads are not damaged. Check that the valve body is not bent. Connect the CDV to the FRONTIER face piece or hood by screwing the CDV hand wheel into the hood or face piece. Make sure the manual red bypass knob is in the closed position, i.e., fully turned clockwise. Open the cylinder valve slowly by turning the cylinder valve knob counter-clockwise to the fully open position. Hold face piece tight to your face. The whistle alarm should activate and then shut off. There should be no air flow from the face piece. If air is flowing, check that bypass is closed. For the First Breath CDV, inhale to activate airflow.

18. CONTENT STEEL (Single Cylinder) AALCF (Dual cylinders) No. CYLINDER 1 2 WORKING (pr) 300 BAR 300 BAR MAX (pr) 450 BAR 600 BAR TESTED (pr) 600 BAR 950 BAR LITTERS 1800 LIT 2030 LIT WEIGHT (W.L) 10.8 KG 4.1 KG ( WITHOUT ) 5KG 3.9KG TIMING 35 MIN 40.8+40.8=82MIN DIFFERENCE

19. TABULATON OF CYLINDER PRUSSURE ARRANGEMENTS         PART NUMBER         NORTH CATALOG NUMBER         PRESSURE PSIG           MATERIAL       FREE AIR CAPACITY           NIOSH RATED DURATION       CYLINDER AND VALVE CHARGED WEIGHT           HYDROSTATIC INTERVEL         0.24.092           EN12245 HP           6500       ALLUMINIUM ALLOY WITH CORBON FIBER           2400 LIT         40         8.818 LBS           8YEARS       0.24.037   9110301 LP   2216   AL     1287 LIT   30   15.9 LBS   5 YEARS   0.24..098   910302 HP   4500 HOOP ALLUMINIUM   1287LIT   30   15.9 LBS   3 YEARS   124002   910303 HP   4500 FULL CARBON   1287LIT 45   14.8 LBS   5 YEARS

20. 300 BAR working pressure Dual cylinder setup Dual hose setup (casualty +firefighting) 70% Weight Reduced 85% Volume Increased By Adding One Cylinder ADVANTAGES

21. Enclosed space entry Fire fighting Casualty saving Hospital & Healthcare Under water diving Application Marine applications. APPLICATIONS

22. Even the time of respiration for one person can be increased. In this report, a design for SCBA FOR CASUALITY, and the key functions, material used ,maintenance everything properly described. The warning alarm will be set before the 15 minutes of emptying the cylinder. This advanced self-contained breathing apparatus consist of additional reducing valve demand valve and mask, so, that while fighting the fire if a person is suffocating, extra mask can be used to save the person. Life can be saved Time can be saved CONCLUSION

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