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Marioff HI-FOG MAU Systems Marioff HI-FOG Training 4 August 2008 Amit Lior.

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Presentation on theme: "Marioff HI-FOG MAU Systems Marioff HI-FOG Training 4 August 2008 Amit Lior."— Presentation transcript:

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2 Marioff HI-FOG MAU Systems Marioff HI-FOG Training 4 August 2008 Amit Lior

3 What is MAU?  Machinery-space Accumulator Unit (MAU) is the smallest Marioff HI-FOG system, developed to protect enclosures containing machinery equipment against fire. MAU is small also compared to other FM approved accumulator units  Marioff HI-FOG MAU system is of a deluge type, releasing through open spray-heads when activated.  MAU unit is actuated either manually or automatically. MAU is a self contained unit, requiring no supply of electric power or water for operation  Marioff HI-FOG MAU was tested for both fire-righting ability and for component qualities to the satisfaction of FM (USA), VdS (Germany), TFRI (China) and VNIIPO (Russia).

4 Applicable Standards  NFPA 750 Standard on Water Mist Fire Protection Systems  FM Approval Standard Class 5560  VdS draft Standard  IMO

5 Applications Machinery Space:  oil pumps  oil tanks  fuel filters  transformer vaults  gear boxes  drive shafts  lubrication skids  diesel engine driven generators  other similar machinery using fuel and/or lubrication fluids with volatilities less than or equal to light diesel

6 Applications Special Hazard Machinery Space:  internal combustion engines, other equipment using fuel and/or lubrication fluids with volatilities less than or equal to Heptane.  incidental use, or storage of limited quantities of flammable liquids of not more than two 55 gal (208 L) drums.

7 Applications Turbine Enclosures

8 Protected Enclosures General guidelines:  Maximum enclosure height 5 m  Maximum enclosure width and length 7,5 m  Maximum enclosure volume 260 m 3 Also:  All ventilation openings and\or forced ventilation arrangement shall be capable of automatic closure or shut- down prior to system discharge.

9 Structure & Components Each MAU consists of:  One (1) compressed gas cylinder  One, Two or Three (1, 2 or 3) water cylinders  Actuator Valve  Rack  Monitoring devices (pressure gauge etc’.)

10 Structure & Components Standard MAU sizes:  MAU-501  50 L water+1  20 L compressed gas  MAU-1002  50 L water+1  50 L compressed gas  MAU-1503  50 L water+1  50 L compressed gas

11 Structure & Components Gas cylinders Preferably provided by local supplier. Dimensions:  Diameter:ca. 240 mm  Maximum cylinder height:ca mm  Thread type:24,32  1,814 SFS2292 (adaptor applicable for several options) Each MAU has a single compressed gas cylinder:  MAU-50:20 Litre  MAU-100 \ MAU-150:50 Litre (minimum nominal capacity 48 Litre) Compressed gas may be either air or nitrogen. Applicable pressure of compressed gas should be one of the following:   C  200 bar 15  C   C

12 Structure & Components Water cylinders  Nominal capacity of 50 litres.  Amount of water cylinders depend on the size of the accumulator unit.  Type of water cylinder depends on the compressed gas pressure and the place in the MAU assembly. NOTE:  Water cylinders can not change from one type of MAU to the other.  Water cylinders can not be altered within each MAU.  MAU set for one pressure can not use gas cylinders with other pressure.

13 Structure & Components Actuator Valves  Solenoid Valve  dP (delta P) Valve  Slave Valve

14 Structure & Components Racks  Wall Mounted rack  Free Standing rack

15 Structure & Components Monitoring Devices  Pressure Gauge- Gas Cylinder pressure  Pressure Gauge- Water Cylinders pressure

16 Structure & Components Monitoring Devices  Pressure Switch- Gas Cylinder  Pressure Switch- Water Cylinders  Pressure Transducer

17 Structure & Components Monitoring Devices  Water Level- visual indicator  Water Level- electric switch

18 Structure & Components Additional Devices  Shutoff Valve  Filling adaptor  Protection caps  Protective cabinet

19 Operation Single Accumulator  Standby

20 Operation Single Accumulator  Standby  Opening the Actuation Valve

21 Operation Single Accumulator  Standby  Opening the Actuation Valve  Discharge

22 Operation Simultaneous Discharge  Standby

23 Operation Simultaneous Discharge  Standby  Opening the Actuation Valve

24 Operation Simultaneous Discharge  Standby  Opening the Actuation Valve  Discharge

25 Operation Extended Discharge  Standby

26 Operation Extended Discharge  Standby  Opening the Actuation Valve

27 Operation Extended Discharge  Standby  Opening the Actuation Valve  Discharge

28 Operation Extended Discharge  Standby  Opening the Actuation Valve  Discharge

29 Operation Extended Discharge  Standby  Opening the Actuation Valve  Discharge

30 Spray-Heads 4S 1MC 8MB 1100 Spray-heads are installed in one of the following orientations:  At ceiling level, discharging downward.  Wall mounted, discharging horizontally.

31 Spray-Heads Amount of Spray-Heads:  65 m 3 : one spray-head  130 m 3 : two spray-heads  260 m 3 : four spray-heads Note: These numbers are the minimum, and more spray-head may be required if e.g.:  in order to keep max. spacing limits between spray-heads in a long room  obstruction prevents the construction of economic and uniform grid  the amount of fire risks justifies more spray-heads for proper coverage For 10 minutes discharge:  MAU-50 : 1 spray-head  MAU-100 : 2 spray-heads  MAU-150 : 4 spray-heads

32 Distribution Network Network for the release of one or two spray-heads Network for the release of one or two spray-heads:  O/D 12 mm (  1,2 mm wall thickness) Network for the release of three or more spray-heads:  O/D 16 mm (  1,5 mm wall thickness) from the accumulator unit to the first T-piece.  O/D 12 mm (  1,2 mm wall thickness) from the first T-piece thereafter.  Maximum length of piping used for the construction of the network:  20 m of O/D 12 mm pipes.  10 m of O/D 16 mm pipes.

33 Distribution Network  single spray-head, typically installed at the centre of the ceiling  two spray-heads, installed either at ceiling level or wall mounted  four spray-heads, installed either at ceiling level or discharging horizontally

34 System Design 1) Application & Requirements 2) Enclosure 3) Spray-Heads location 4) Accumulator Unit & Piping Network

35 System Design Sample RFQ No. 1  Application: fuel storage  Dimensions: 6 m (L)  4 m (W)  3 m (H)  Fire hazard: five fuel tanks, 350 litre of Diesel fuel each  Approval authority: N.A.  Protection time: 30 minutes

36 System Design Sample RFQ No. 2  Application: generators room  Dimensions: 10 m (L)  4 m (W)  3 m (H)  Fire hazard: two diesel generators  Approval authority: N.A.  Protection time: 20 minutes

37 System Design Sample RFQ No. 3  Application: steam turbine  Dimensions: 7,5 m (L)  7,5 m (W)  5 m (H)  Fire hazard: steam turbine  Approval authority: N.A.  Protection time: 15 minutes 281 m 3

38 reminder: Spray-Heads Amount of Spray-Heads:  65 m 3 : one spray-head  130 m 3 : two spray-heads  260 m 3 : four spray-heads Note: These numbers are the minimum

39 System Design Sample Spray-Heads location No. 1  Application: elevator motors room  Dimensions: 5 m (L)  4 m (W)  3,5 m (H)  Fire hazard: electric motors  Approval authority: N.A.  Protection time: 20 minutes volume = 70 m 3 : two spray-heads location : ceiling, uniform grid

40 System Design Sample Spray-Heads location No. 2  Application: generator room  Dimensions: 7 m (L)  6 m (W)  5 m (H)  Fire hazard: generator, 200 litre fuel tank  Approval authority: N.A.  Protection time: 30 minutes volume = 210 m 3 : four spray-heads location : ceiling, uniform grid

41 System Design Sample Spray-Heads location No. 3  Application: turbine enclosure  Dimensions: 7 m (L)  6 m (W)  4 m (H)  Fire hazard: gas turbine  Approval authority: N.A.  Protection time: 30 minutes volume = 168 m 3 : four spray-heads location : wall mounted

42 reminder: Spray-Heads For 10 minutes discharge:  MAU-50 : 1 spray-head  MAU-100 : 2 spray-heads  MAU-150 : 4 spray-heads

43 System Design Sample Accumulator Unit & Piping Network No. 1  Application: elevator motors room  Dimensions: 5 m (L)  4 m (W)  3,5 m (H)  Fire hazard: electric motors  Approval authority: N.A.  Protection time: 20 minutes two spray-heads = MAU minutes = two accumulator units Welcome addition: accumulator unit(s) for second discharge

44 System Design Sample Accumulator Unit & Piping Network No. 2  Application: generator room  Dimensions: 7 m (L)  6 m (W)  5 m (H)  Fire hazard: generator, 200 litre fuel tank  Approval authority: N.A.  Protection time: 30 minutes Welcome addition: accumulator unit(s) for second discharge 30 minutes = three accumulator units four spray-heads = MAU-150

45 Restrictions Site Specific:  Hazardous Areas  Temperature Range  Construction Materials Enclosure:  Shut-down time  Forced ventilation

46 Don’t Forget Other system:  Detection System  Alarm  Gas supply Additional:  Enclosure  Warenty and service

47 Thanks


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