Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by netherhay

  1. netherhay

    Purge or bang? Any help out there?

    Purge of bang? In an enclosed diesel engine acoustic module, diesel fuel with a flashpoint above 61 deg C falls on hot surface say 70 deg C. Ambient air temperature is 40 deg C. There is no purge or air change. I think the diesel fuel will evolve flammable vapours and eventually reach the LEL...
  2. netherhay

    CE marking of domestic mCHP

    I think a call to TUV or the like is the next thing on the agenda - many thanks.
  3. netherhay

    CE marking of domestic mCHP

    Many thanks. I'm experienced in obtaining CE marking for industrial machinery in the oil&gas industries (so PED and ATEX hold no surprises), but where I'm short is on experience in obtaining certification for commercial "white goods" being sold into a domestic environment. Installation and...
  4. netherhay

    CE marking of domestic mCHP

    Fuel cell using atmospheric air and LNG or LPG as fuel to generate low voltage electricity (<12 V dc) fed to inverter to backfeed the grid (240 V ac), and with waste heat (650 deg C) used to heat domestic hot water system (approx 5 bar max). There are many directives to comply with including...
  5. netherhay

    reliable AUVs

    That gives me a good start - thanks very much.
  6. netherhay

    reliable AUVs

    Does anyone have any reliability/availability data for underwater vehicles (or preferably, autonomous underwater vehicles)? I'm looking at vehicles that operate in littoral (shallow) waters, say to 250 meters, and are capable of independent or programmable operation. Umbilical ROV machine data...
  7. netherhay

    Underwater vehicle

    Does anyone have any reliability/availability data for underwater vehicles (or preferably, autonomous underwater vehicles)? I'm looking at vehicles that operate in littoral (shallow) waters, say to 50 meters, and are capable of independent or programmable operation. Umbilical ROV machine data...
  8. netherhay

    Oily Water Separation On Board Ships.

    Sumihar, You can contact the company via the website: www.flight-refuelling.com You need the Fluid Systems Division at Factory 3, recently integrated into the company but not represented on the site as yet - persistance may be required! In the most basic terms, the bilge water is circulated...
  9. netherhay

    Oily Water Separation On Board Ships.

    I have only just come across this thread so please forgive a rather late contribution. UK company Flight Refuelling Ltd - Fluid Systems manufacture a ceramic membrane bilge water separator system certified to MEPC.107(49) While the MEPC stipulates 15ppm, the system is consistently operated at...
  10. netherhay

    Determine inspection intervals

    There is no difference in the repair times between scheduled and unscheduled replacement of failed component. As I am looking at 'new to service' equipment, I only have theoretical figures to go on; hence the reliance on NPRD to derive MTBF values - unfortunately I have no actual data. We must...
  11. netherhay

    Determine inspection intervals

    I have a mechanical component with a know MTBF, how can I determine what the inspection interval should be to give 90% and 95% confidence intervals to ensure a 98% availability? Is this the same for systems and individual components? Similar advice regarding electrical compenents/systems would...
  12. netherhay

    sea water filter filter -10 micron

    I suggest you research Reverse Osmosis plants, normally associated with the production of fresh water from sea water. Some operate at the sort of pressures you are considering. As many reverse osmosis plants use microfiltration techniques, a method of cleaning the filter will be necessary...
  13. netherhay

    Salt Water Separation

    There is a Oil Content Monitor manufactured by Rivertrace Engineering Ltd that will detect oil content down to less than 5ppm, is adjustable, and provides volt free contacts for alarms or switching. Flight Refuelling Ltd (don't be fooled by the name) manufacture a ceramic membrane bilge water...
  14. netherhay

    Replacing Hull Plating - Insitu?

    The publication Marine Engineers Review published by IMarEST May 2005 contains an article on a Sandwich Plate System that might be of interest. Try the IMarEST website: www.imarest.org
  15. netherhay

    Solidworks on laptop

    Is it possible to install Solidworks 2005 on a laptop with less than 240k RAM so that it still works?
See more

Part and Inventory Search

Back
Top