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  1. Join Date
    Nov 2005
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    #141
    Quote Originally Posted by NightRock View Post
    Parang wala naman safety device yang nasa picture.. yung malaki metering device yon yung maliit pressure regulator. wala din non return valve na nakalagay.

    boss ang auto shut off valave dyan yung gray na nasa right side. IMHO, gumana yan sa serenda kaya nga walang fire na nangyari sudden burst lang ng LPG+O2+Spark.

    ang kulang dyan yung tinatawag na leak detector na nakakabit sa FDAS ng building or pwedeng independent or nakakabit sa mismong provider. yun din ata or hindi gumagana sa serendra.

  2. Join Date
    Oct 2009
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    473
    #142
    Conspiracy theory...what if SM did it?!? They hired a con to rent the place.

    Opened the gas line to fill-up the room and then used a cellphone to trigger an ignition to ignite the room-filled with flammable gas.

    Reason for doing such: so that news will divert their attention from SM Aura to an issue ng Ayala/Serendra instead.

  3. Join Date
    Aug 2009
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    #143
    ano pede mag trigger sa shutoff valve para mag sumara?

  4. Join Date
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    #144
    Quote Originally Posted by brainmafia_310 View Post
    boss ang auto shut off valave dyan yung gray na nasa right side. IMHO, gumana yan sa serenda kaya nga walang fire na nangyari sudden burst lang ng LPG+O2+Spark.

    ang kulang dyan yung tinatawag na leak detector na nakakabit sa FDAS ng building or pwedeng independent or nakakabit sa mismong provider. yun din ata or hindi gumagana sa serendra.
    Ganito kasi yan, sa instrumentation and control, iba ang gas leak definition and yung used gas sa burners natin, if yung gas leak ng pipe is same sa pressure nung lumalabas sa burner natin, di yan mag trigger. Kasi kung amg trigger yan at same pressure ng burner natin, wala lalabas na gas sa mga lutuan dyan.

    Yung methane gas detector, iba pa yun sa leak detector, kasi yung leak detector, pressure sa pipeline ang nisesense nya, while yung methane gas detector ay yung methane sa hangin ang sinusukat nya which will trigger a hut off sa valve ng pipe or will turn on an alarm if may unsafe level ng methane gas sa air, depende yan kung ilang part per million ang kailangan para magtrigger sya.

    1. Wala yan methane gas detector installed sa mga units
    2. May leak detector yan pero yung leak detector na will shut off if makadetect sya ng sudden burst of gas pressure enough for it to shut down

  5. Join Date
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    #145
    Kung nagka gas leak, paano sumabog ng ganyan kalakas? Hindi naman completely sealed ang condo db?

  6. Join Date
    Feb 2013
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    487
    #146
    1. Ilang percent ba ng fuel and air mixture ang kailangan para enough na matungkab yung walls pag sumabog?

    Ang alam ko may isang incident sa may Sta. Mesa ata, sumabog yung bahay dahil lang sa super kalan.

    12 hurt in LPG tank explosion | Metro, News, The Philippine Star | philstar.com

    2. What is your definition of completely sealed? Kung open ang doors and windows nung nangyari yun, malamang di ganun katindi yung damage sa walls nun.

    Remember at certain speeds, kahit yung tubig nagiging equivalent yun sa semento at the point of impact and even the atmosphere (that is why we have meteorites).

  7. Join Date
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    #147
    Quote Originally Posted by siopaonatoasted View Post
    Ganito kasi yan, sa instrumentation and control, iba ang gas leak definition and yung used gas sa burners natin, if yung gas leak ng pipe is same sa pressure nung lumalabas sa burner natin, di yan mag trigger. Kasi kung amg trigger yan at same pressure ng burner natin, wala lalabas na gas sa mga lutuan dyan.

    Yung methane gas detector, iba pa yun sa leak detector, kasi yung leak detector, pressure sa pipeline ang nisesense nya, while yung methane gas detector ay yung methane sa hangin ang sinusukat nya which will trigger a hut off sa valve ng pipe or will turn on an alarm if may unsafe level ng methane gas sa air, depende yan kung ilang part per million ang kailangan para magtrigger sya.

    1. Wala yan methane gas detector installed sa mga units
    2. May leak detector yan pero yung leak detector na will shut off if makadetect sya ng sudden burst of gas pressure enough for it to shut down
    Boss iba ata sinasabi mo sa number 1, gas leak detector is the same as smoke detector, pero mas porte ng leak detector ang LPG adn other similar component/chemical.

    Sa number 2 naman, auto shut off valve yun. if the amount of discharge is greater sa set point nya mag shushutoff yun, which i think it did its purpose during the explosion at serendra.

    by the way, number 2 is pneumatic (mechanical type) of control.

  8. Join Date
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    #148
    Grabe naman gas leak all of a sudden biglang sumabog. Mas rampant nga gas leak dapat sa mga malls sa dami ba naman na restaurants and foodcourt pero wala tayo nababalitaan na pagsabog.

  9. Join Date
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    #149
    Quote Originally Posted by brainmafia_310 View Post
    Boss iba ata sinasabi mo sa number 1, gas leak detector is the same as smoke detector, pero mas porte ng leak detector ang LPG adn other similar component/chemical.

    Sa number 2 naman, auto shut off valve yun. if the amount of discharge is greater sa set point nya mag shushutoff yun, which i think it did its purpose during the explosion at serendra.

    by the way, number 2 is pneumatic (mechanical type) of control.
    Smoke detector is different from methane gas detector, at ang daming klaseng gas detectors, may O2, may CO, etc..

    Wala naman nagsabi na hindi nagfunction yung leak detector ng condo (talking about the sudden burst in pressure shutdown).

    Ang tanung nila, is yung sa loob ng unit mismo. . Wala ako alam na gas leak (methane) detector na ginagamit sa commercial establishment para mag detect ng ppm sa hangin.

  10. Join Date
    Sep 2003
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    #150
    LPG tanks of restaurants are usually located outside the premises to avoid such accidents. Ganun nangyari dati sa North Park sa Wilson dati, buti sa labas yung mga LPG niya...

  11. Join Date
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    #151
    Quote Originally Posted by siopaonatoasted View Post
    Smoke detector is different from methane gas detector, at ang daming klaseng gas detectors, may O2, may CO, etc..

    Wala naman nagsabi na hindi nagfunction yung leak detector ng condo (talking about the sudden burst in pressure shutdown).

    Ang tanung nila, is yung sa loob ng unit mismo. . Wala ako alam na gas leak (methane) detector na ginagamit sa commercial establishment para mag detect ng ppm sa hangin.
    rephrase ko idol, gas leak detector perform as the function similar to smoke detectors that trace chemical composition in the air which is one of the requirement ng BFP per Fire Code fo the Philippines it is a must in all centralized LPG systems. kaya nga nagtataka ako bakit umabot sa burst yung LPG inside the condo which should have been detected by both LPG Leak Detector and even the Smoke detector which is sensitive enough (for both photo and ionization type) to detect changes in the minute particles of the air (even some cooking witthout the smoke per se) eh nagaalarm sya.

  12. Join Date
    Oct 2011
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    #152
    ^

    Sir mon, paano ba setup ng LPG tanks sa mga condo hindi ba sa labas din? Ung piping lang pumasok.

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    #153
    Quote Originally Posted by Monseratto View Post
    LPG tanks of restaurants are usually located outside the premises to avoid such accidents. Ganun nangyari dati sa North Park sa Wilson dati, buti sa labas yung mga LPG niya...
    Di naman paps sumasabog ang LPG tank unless punctured sya. Di allowed isakay ang LPG tank kasi sa elevator. Isa sa property ng methane yung mag accumulate and settle down. Just imagine bawat sakay mo ng tanke sa elevator, naiipon yung kaunting mga leak sa ilalim ng elevator nyo.

  14. Join Date
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    #154
    [QUOTE=brainmafia_310;2154490]rephrase ko idol, gas leak detector perform as the function similar to smoke detectors that trace chemical composition in the air which is one of the requirement ng BFP per Fire Code fo the Philippines it is a must in all centralized LPG systems. kaya nga nagtataka ako bakit umabot sa burst yung LPG inside the condo which should have been detected by both LPG Leak Detector and even the Smoke detector which is sensitive enough (for both photo and ionization type) to detect changes in the minute particles of the air (even some cooking witthout the smoke per se) eh nagaalarm sya.[/QUOTE]


    Heat detector naman un sir.

  15. Join Date
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    #155
    Di paps, yung smoke detector na ionization type, pwede yung magtrigger kahit wala usok, as long as may magbago sa air particles na pwede sya matrigger.

    Yung question mo paps bakit di nadetect if may sensor man sya for LPG, baka isa dun is dahil mali location nung detector, or dahil wala siguro gumagamit nung unit eh may cover pa yung detector, may mga napansin ako sa mga bago na building, yung mga smoke sensor nila may cover pa kahit nakikita mo na activated na kasi blinking yung mga indicators.

    Or dahil sabi nga rin sa report, brownout. Yung condo siguro centralized mga sensor nyan, so kung masyado matagal yung brownout, baka nagshutdown na yung mga UPS ng control room nila.

  16. Join Date
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    #156
    ^

    May cover pa mga un kasi baka mag trigger ung smoke detector due to alikabok lalo na at bago pa.

  17. Join Date
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    #157
    Quote Originally Posted by siopaonatoasted View Post
    Di paps, yung smoke detector na ionization type, pwede yung magtrigger kahit wala usok, as long as may magbago sa air particles na pwede sya matrigger.

    Yung question mo paps bakit di nadetect if may sensor man sya for LPG, baka isa dun is dahil mali location nung detector, or dahil wala siguro gumagamit nung unit eh may cover pa yung detector, may mga napansin ako sa mga bago na building, yung mga smoke sensor nila may cover pa kahit nakikita mo na activated na kasi blinking yung mga indicators.

    Or dahil sabi nga rin sa report, brownout. Yung condo siguro centralized mga sensor nyan, so kung masyado matagal yung brownout, baka nagshutdown na yung mga UPS ng control room nila.
    Mismo!!! sir, ako nagrereceive ng newly constructed condo namin then from the contractor then i am under the same team na nag turnover ng unit with the buyers.

    lahat yan dapat tested bago ibigay sa buyer. hehehehe. ngayon, the bigger question is, bakit hindi gumana lahat ng sensing device na iyun considering ang laki na ng build up ng lpg inside the unit.

    Idol, tagal na ako sa property management industry and very sensitive ako sa safety features ng mga building.

  18. Join Date
    Feb 2013
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    487
    #158
    Siempre mga big time ang nakatira dun, di naman nila yan masyado pinapansin pag turn over ng units ata.

  19. Join Date
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    #159
    ^

    Sir, sa property managment ka pala. Apmc, cbre or jll? Paano maka buildup ng gas sa condo unit?

  20. Join Date
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    #160
    Kapag may sumingaw paps hehehehe...

    May issue siguro sa turn over yung unit, kasi kung pansinin nyo yung statement, di daw gamit yung unit at ang abogado nung may ari ay walang iba kundi ang isa sa Fortun borthers.

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