NEW CAR $12,700. New Motor. I want one for my boat!

Discussion in 'All Things Boats & Boating' started by Yobarnacle, Jan 17, 2012.

  1. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    maybe so...but if you had a 4 cylinder you could run on 2, converting other 2 to compress air...or some such arrangement....grrr grrr
     
  2. michael pierzga
    Joined: Dec 2008
    Posts: 4,862
    Likes: 115, Points: 0, Legacy Rep: 1180
    Location: spain

    michael pierzga Senior Member

    And Im wondering why some clever inovator doesnt harness energy as compressed air to power equipment. . ??
     
  3. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    there are lots of airpowered tools..couldn't list them all
     
  4. sabahcat
    Joined: Dec 2008
    Posts: 792
    Likes: 28, Points: 0, Legacy Rep: 273
    Location: australia

    sabahcat Senior Member

  5. Stumble
    Joined: Oct 2008
    Posts: 1,896
    Likes: 71, Points: 48, Legacy Rep: 739
    Location: New Orleans

    Stumble Senior Member

    I am still trying to wrap my head around the storage tank. The website says it holds two 320 liter tanks at 4200psi. A standard SCUBA tank holds 1.3liters at 3000 psi. So this car has the volume of ~600 scuba tanks at a higher pressure. Now my dive compressor that runs on the boat takes about 10 minutes to recharge a dive tank, so it would take roughly 6,000 minutes or 100 hours to recharge these tanks. Since I burn around a gallon of diesel an hour on the generator that means for the 2 hours or so of operating time I have burned roughly 50 gallons / hour.

    Not even close to worth it. Heck you could run a pretty nice size battlewagon for that fuel bill, let alone a small dinghy.

    It might be possible to get a larger, more efficient generator to handle the compressor, but I still don't see it as a viable option. The only way this might work is if the boat is back at the dock every night and can plug into mains power.
     
  6. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    my boat IS a trailer sailer so might be ideal for me. They say it can recharge with the on board compressor in 4 hours and $2 worth electricity.

    I've no idea of current draw that represents. Maybe 60 amps @ 220 volts? for 4 hrs?
     
  7. lewisboats
    Joined: Oct 2002
    Posts: 2,329
    Likes: 128, Points: 0, Legacy Rep: 1603
    Location: Iowa

    lewisboats Obsessed Member


    I looked up tank sizes because I didn't think 1.6 litres sounded right...the smallest on this chart is 6 cubic ft or 28.3l/cuft...170 liters. Do you breathe from a Pepsi bottle?

    http://www.huronscuba.com/equipment/scubaCylinderSpecification.html
     
  8. Submarine Tom

    Submarine Tom Previous Member

    Stumble,

    A scuba tank typically holds ~80 cubic feet which is a whole lot more than 1.3 litres.
    More like 2300 litres I believe.

    -Tom
     
  9. Stumble
    Joined: Oct 2008
    Posts: 1,896
    Likes: 71, Points: 48, Legacy Rep: 739
    Location: New Orleans

    Stumble Senior Member

    WOOPS.

    Thanks Tom, kinda got that screwed. I was thinking SCUBA tanks were in inches, not feet, making the 650L tank around 1/4 a SCUBA tanks. So refill time would be about 3 minutes on a small compressor. Starting to sound a lot more reasonable.
     
  10. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    I don't suppose home made carbon fiber high pressure air tanks would be wise. Even hydrostat tested.
     
  11. philSweet
    Joined: May 2008
    Posts: 2,418
    Likes: 243, Points: 63, Legacy Rep: 1082
    Location: Beaufort, SC and H'ville, NC

    philSweet Senior Member

    Some practical tables of the theoretical efficiencies of such a system. Building a ring set and gasket set that can handle these pressures is another matter entirely. The device in question must be at least a four step expander with interheating and a heated block. And with a bit of mechanical friction might manage 90% conversion and an outlet temp of neg15 degrees. The issues are mostly engineering. Anyone seen an polytropic engine with the cylinders nested inside one another?

    http://www.efcf.com/reports/E14.pdf
     
  12. Poida
    Joined: Apr 2006
    Posts: 1,189
    Likes: 51, Points: 48, Legacy Rep: 497
    Location: Australia

    Poida Senior Member

    I can't see where there would be any cost saving, or energy saving.

    Energy to run the compressors, coolers and dryers.

    you can run a standard car with leaky seals for years or until you have the time to get it fixed. A leaky seal in your compressed air system would have to be fixed straight away and you would probably be in the garage once a month to get seals repaired.

    Don't forget when auto companies supply running data, it is done in a controlled manner. Dead flat track and no wind.

    Here, compressed air cylinders have to be inspected annually. Another expense.

    I have a diesel car, that's bad enough as there is generally only one pump that dispenses diesel in a servo and it's normally got the longest line.

    Poida
     
  13. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    Admitted it's new technology and not new. If they worked the kinks out so that it's viable, then, THAT is NEW! And NEWS!
     
  14. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    They say you can use the exhaust as air conditioning, and lubrication is small amount of vegetable oil.
    How about mint?

    Subject: Mint

    "If you want peace, stop fighting. If you want peace of mind, stop fighting with your thoughts."
    --Peter McWilliams (1949-2000), writer and self-publisher of best-selling self-help books.


    Mint was no doubt one of the earliest herbs discovered. It has been found in Egyptian tombs dating back to 1000 BC and has been part of the Chinese pharmacopoeia even longer.

    The early Romans believed eating mint would increase intelligence. The scent of mint was supposed to stop a person from losing his temper and royal ambassadors carried mint sprigs in their pockets. It was also used to sweeten the often rank smell of medieval halls.

    One drum of oil (weighing about 400 pounds) can be used to flavor approximately five million sticks of chewing gum or 400,000 tubes of toothpaste.

    The United States produces more than 70% of the world's supply of peppermint and spearmint.

    Recent research conducted at the University of Cincinnati has shown that sniffing mint improves concentration; several Japanese companies now pipe small amounts through their air conditioning systems to invigorate workers and improve productivity.

    The genus Mentha is believed to have originated in the Mediterranean basin. Mint or Mintha, is named after the Greek nymph Minthes, who was turned into a mint plant by Proserpine, the jealous wife of Pluto, for casting covetous eyes on the philandering god of the underworld.
     

  15. Yobarnacle
    Joined: Nov 2011
    Posts: 1,747
    Likes: 129, Points: 63, Legacy Rep: 851
    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    Does google make dive compressors?
    :D
     
Loading...
Similar Threads
  1. fallguy
    Replies:
    10
    Views:
    469
  2. Squidly-Diddly
    Replies:
    1
    Views:
    444
  3. eiasu
    Replies:
    1
    Views:
    755
  4. Tiny Turnip
    Replies:
    1
    Views:
    808
  5. Charlyipad
    Replies:
    3
    Views:
    1,493
  6. waikikin
    Replies:
    0
    Views:
    960
  7. Tiny Turnip
    Replies:
    12
    Views:
    1,154
  8. ImaginaryNumber
    Replies:
    1
    Views:
    886
  9. waikikin
    Replies:
    2
    Views:
    1,726
  10. AnthonyS
    Replies:
    3
    Views:
    1,248
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.