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  • Users: JP123
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  1. JP123

    rubber specification

    Hi, those anyone knows the following coefficients for EPDM rubber expansion joint PROCO style 233: - Poisson's ratio - Young modulus - Transaxial compression - Expansion coefficient - Effective surface We need those coefficient for finite element calculation and be sure it will resist to...
  2. JP123

    velocity - pulp in suspension

    Hi, Does somebody know the recommended velocity in piping for water with pulp in suspension having 2-8% consistency? Thank you.
  3. JP123

    pressure on steel silo wall

    Hi, I would like to know how to calculate the pressure on a steel silo wall created by dry grain. The floor of the silo is flat and made of concrete. Thanks for help!
  4. JP123

    heat load to warm up a truck

    Hi, I'm trying to find the heat load to warm up a 70 tons truck within 8 hours, from -40 deg C to 15 deg C. I found 246 kW*h. Is that ok? How the heat should be distribute on the truck? Any ideas? Thanks!
  5. JP123

    Decrease haul truck wash time

    Hi, To perform any maintenance on 240 tons trucks in the wash bay, the trucks require considerable heating time to ensure the water doesn't freeze to the trucks during winter time. The building is heated. Is there any other way to heat the truck faster than in 6 hours using steam heaters from...
  6. JP123

    Rubber cutting

    Hi, Does somebody know what I should use to cut rubber 3/8'' thick stuck into a wooden flume? I heard that a concrete saw with a steel blade and using water + dishes soap will prevent the rubber to stick on the blade. Thanks for advises. JP.
  7. JP123

    concentration

    hi, i have 1000 ppm of iron (density = 181 lb/ft3) mixed with water. i'm trying to find the solid concentration in %. thanks
  8. JP123

    Solid concentration

    Hi, I have 70 usgpm of slurry containing dust. Dust at 600 lb/hr is mixed with water. I'd like to know the solid concentration (weight) in %. Thanks.
  9. JP123

    help with belt conveyor cooling system

    Hi, I a have some conveyors that carry very hot iron pellets. They use water to cool the belt conveyor and that create steam every where in the galleries. Is there an other way to cool the belt conveyo? Thanks! JP.
  10. JP123

    wind girder problem

    Hi, I am currently working on a vessel project and one of our customers have a problem with the wind girder. The tank is 253 ft diameter and 56 ft heigh. During the winter, ice is forming all around the wind girder and its now problematic for people's safety. I have the idea to put electric...
  11. JP123

    heat transfer coefficient

    Hi, I need to know the heat transfert coefficient to calculate heat losses for a tank. here some informations about the tank: -vertical cylinder -diameter: 86.5 ft -height: 34.12 ft -wind speed: 4.027 m/s -temperature of ambiant air : -30 degree C -temperature of the interior surface: 5...

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