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  • Users: brianle
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  1. brianle

    Air removal from pipeline with multiple high and low points

    How should I remove the air from a 300 foot long 4" fuel oil pipe that has 3 low points and 3 high points and multiple bends? The pipe is connected to a tank with 10 feet of oil in it. There are no drains in the low points and small vents in the sections of pipe that are the 2nd and 3rd high...
  2. brianle

    Using a GSU transformer

    Can a Generator Stepup transformer that has nearly the same ratio of the input to output voltage be used in place of a damage one if the MVA rating is high enough? The original one was 300 MVA, 15KV delta- 230KV Y. Can a 445 MVA, 22KV delta - 345KV Y transformer be used instead? Thanks, Brian
  3. brianle

    Definition of ASME codes for pipe tube forgings

    Where in the ASME code are the abbreviations for pipe, tube, and forgings ("P" "T" and "F") defined, i.e. SA-213 T-22, A-182 F-22? Thanks, Brian
  4. brianle

    Steam flow nozzle design

    In a steam flow nozzle in a 600,000 lb/hr steam line, would there typically be a hole (3/8" - 1/2" diameter) through the side of the nozzle down stream of the throat? Thanks, Brian
  5. brianle

    Using strain gage to determine hopper level

    I am wondering if a strain gage could be used to determine the level of material in a hopper shaped like an inverted pyramid that is made of plate steel. The hopper is about 12 feet wide by 12 feet long at the top and is about 8 feet deep. The weight of material in the hopper when full is...
  6. brianle

    Coal Bunker Slicer

    We have two slicers that we use to break up coal in our coal bunkers. The slicer plate is dropped onto the coal in the coal bunker. The slicer consists of a thick steel plate, roughly 24" x 18" x 4", attached to a wire rope (about 1/2" diameter). The wire rope runs from an air operated...
  7. brianle

    Coal Bunker Slicer

    We have two slicers that we use to break up coal in our coal bunkers. The slicer plate is dropped onto the coal in the coal bunker. The slicer consists of a thick steel plate, roughly 24" x 18" x 4", attached to a wire rope (about 1/2" diameter). The wire rope runs from an air operated...
  8. brianle

    Pulling capacity of pickup with railroad trucks

    The railroad often uses pickup trucks equipped with railroad trucks (wheels) to travel along railroad tracks. I would like to know how much weight such a pickup could pull on the track. Would it be possible to pull a 100 ton railroad car on a "level" track with a pickup with a towing capacity...
  9. brianle

    Cooling tower nozzles plugs

    It has been suggested that the nozzles in our cooling tower's de-icing valve trough be plugged during the summer months to improve the tower's performance, and then be unplugged before the winter to prevent freezing. The de-icing trough has 2 rows of nozzles in addition to the de-icing valve...
  10. brianle

    Alum for water treatment

    We have a water precipitator to treat river water that will be used for equipment cooling, not for boiler water or drinking water. Some of the cooling water is returned to the river without further treatment. We use "purified" alum as a coagulant. Is there a such thing as "un-purified" alum...
  11. brianle

    Condenser Cathodic Protection

    For cathodic protection of a condenser in an electric power generating plant, can the sacrificial anodes be outside the condenser shell? The condenser is vintage 1950 and the anodes have been mounted to the inside of the waterbox access ports. If they can be mounted outside, I would think they...

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