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  1. nicolai

    Shed structure indoor or outdoor classification

    Hi CDAFD storage : HYDROGEN PEROXIDE 50% concentration in 1,000 litre intermediate bulk containers, total volume ±60,000 litre separate from other buildings 15 m away
  2. nicolai

    Shed structure indoor or outdoor classification

    Hi Folks as what is an IBC storage area cover with an overhead roof (but not on the side walls) classified outdoor or indoor I am considering a sprinkler system in accordance with NFPA 400 and NFPA 13 for fire sprinkler protection at appear no other choice than deluge sprinkler over entire...
  3. nicolai

    Sulfuric Acid Storage

    yes indeed - thks a lot
  4. nicolai

    Sulfuric Acid Storage

    Thanks LCREP is did reviewed FM 7-111F they dont mention any special fire measure like sprinklers for bulk storage tanks ( i.e 50 m³) perhaps not a prerequisite for sulfuric acid my concern is overpressure and subsequent release in case of fire
  5. nicolai

    Sulfuric Acid Storage

    Thks MJcronin I want to establish the good practice and regulations regarding the storage of bulk sulfuric acid from an fire prevention & protection perspective
  6. nicolai

    Sulfuric Acid Storage

    Thks cdafd application is bulk storage 50m³ what code in the NFPA suite is most applicable ? many thanks
  7. nicolai

    Sulfuric Acid Storage

    Hi Folks possible to direct me to the applicable codes and guidelines regarding bulk outdoor storage of Sulfuric Acid (98%) many thanks
  8. nicolai

    Safety valve selection hot water

    Good day folks who can direct me to applicable source or guideline... I need to select pressure safety relief valve for high temperature hot water system (not steam) operating 188 °F (87°C ) The vessel volume is 1,300 gallon ( 5,000 liter ) The hot water source is a boiler high temperature...
  9. nicolai

    supplementary hydrants and hose streams @ fuel facility

    Hi Folks what NFPA code provide guidance on requirement for suplementary hydrant and hose stream flows to be allowed for fuel depot facility The facility has mounded fuel storage with loading and decanting bay (for which foam/ water sprinkler protection will be provided for ) requiring guidance...
  10. nicolai

    yellow cake dust conveying velocity

    hi Folks repost from nuclear engineering forum do anyone has any reference regarding the settling velocity of yellow cake (uranium oxide) dust. Need it to ensure min velocity is adhered to prevent settling in duct system thanks
  11. nicolai

    yellow cake dust- settling velocity

    hi Folks do anyone has any reference regarding the settling velocity of yellow cake (uranium oxide) dust. Need it to ensure min velocity is adhered to prevent settling in duct system thanks
  12. nicolai

    hot water boiler - storage vessel - heat exchanger selection

    to clarify how : how to find the balance between vessel storage size and heating capacity? any rules of thumbs or guidelines available on the subject?
  13. nicolai

    hot water tank tube HX

    hi folks i am missing something i am required so size immersed copper U-tube HX in a tank known required heat capacity (kw) Hot side Th in : 120 °C Th out : ? Cold side Tc in vessel : 20° Tc out : ? Vessel target temperature : 80°C LMTD method not applicable since not all temperatures...
  14. nicolai

    economizer heat exchanger -hot water boilers

    Hi folks is it viable to provide an economizer heat exchanger for preheating on the stack outlet of high temperature hot water boiler ( fire tube) - LFO fired? is their any pitfalls to be aware of using an economizer on an LFO fire tube boiler? many thanks
  15. nicolai

    SO2 SO3 emissions

    Hi Folks what is the generally accepted emission removal process for Offgas mainly containing SO2 and SO3 Any reference or literature you could recommend? many thks
  16. nicolai

    damper actuator selection

    Hi Folks i am looking for literature on the sizing narrative to select electrical actuator for dampers on industrial ventilation ( torque etc) are you aware of any reference ?
  17. nicolai

    effluent pump station screening

    Artisi untreated domestic effluent from urban development the concern is trash like rocks and stone that could landed in the sewer system
  18. nicolai

    effluent pump station screening

    good day folks, I am exploring options for screening option for submersible type effluent pump station daily flow 1500 m³/day we have relative deep invert level on in -feed pipe options -manual incline bar screen [ not deemed feasible due to depth of in-feed] -mechanical rake screen [...
  19. nicolai

    effluent pump station screening

    Artisi effluent and unexpected misused trash i.e stones rocks
  20. nicolai

    PRV station

    thanks everyone for valued feedback Valvecrazy what type of PRV/ which suppliers offers anti-cavitation packages ( with the dual cage concept)?

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