What is Vessel: Definition and 224 Discussions

A research vessel (RV or R/V) is a ship or boat designed, modified, or equipped to carry out research at sea. Research vessels carry out a number of roles. Some of these roles can be combined into a single vessel but others require a dedicated vessel. Due to the demanding nature of the work, research vessels are often constructed around an icebreaker hull, allowing them to operate in polar waters.

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  1. Amith2006

    What is the Cost of Painting a Vessel with Given Dimensions?

    Homework Statement The inner and outer radii of a hollow steel hemispherical vessel are 2 cm and 3 cm respectively.what is the total cost of painting the vessel all over at the rate of 70 cents per cm² ? [ b]2. Homework Equations [/b] Curved surface area of...
  2. T

    Boiling liquid in a closed vessel

    Hi dear Forumers, I 've run into a little thermodynamic problem: There is a closed vessel, containing a given amount of liquid. I heat up the vessel, higher than the boiling point of the liquid. Here it is what happens: As a start, I know that the pressure inside the vessel consists of...
  3. V

    TMI pressure vessel integrity.

    I would like to check something. If I understand well, in the TMI accident, the reactor vessel was never damaged (in the sense of: having lost major containment function) ? Can someone confirm this, or correct my understanding ?
  4. H

    Forces on a pressure vessel containing a vacuum

    Hi, I'm trying to work out how to calculate the forces acting on a vessel containing a vacuum. The vessel is not cylindrical or spherical. Can anyone suggest any websites or textbooks that might be useful? Thanks
  5. D

    A vessel at rest explodes, breaking into three pieces

    1. Ok, I've been working on this problem for ever and it seems easy but I know that there is something wrong. A vessel at rest explodes, breaking into three pieces. Two pieces, having equal mass, fly off perpendicular to one another with the same speed of 90 m/s. One goes along the negative...
  6. M

    Volume of gas in a cylindrical vessel on which a piston has been placed

    [SOLVED] volume of gas in a cylindrical vessel on which a piston has been placed Homework Statement A cylindrical vessel with a tight but movable piston is placed in a vertical position so that the piston, whose area is 60 cm2, is subject to atmospheric pressure. When the gas in the vessel...
  7. J

    Boiler and Pressure Vessel certification

    I would like to know what steps I need to take to become a certified pressure vessel designer builder and user. I searched the ASME website pretty extensively and there are a bunch of courses offered but it is hard to find anything specific on becoming certified.
  8. A

    Reaction vessel v Steam pressure

    Hello folks I am building a reaction vessel that will have an inbuilt condenser for a design project at the Saint Martiin`s school of fashion in London. Problem is, I know nothing about physics. would anyone help me out on what and how I calculate the necessary elements that will prevent the...
  9. E

    Design Pressure Vessel: Vacuum, O-Ring Guidelines

    I am trying to design a pressure vessel for testing purposes that is 12 inches long and must have an inner diameter of 1.5 inches. 1) What is the minimum thickness the walls can be in order to attain "vacuum" pressure (10E-6 torr)? I want to make the walls as thin as possible and still be...
  10. T

    Speedy Pressure Vessel Fatigue Cycling

    Gents, I am looking for a design modification to accomplish 250,000 cycles of pressure loading in a short time period. We are going from 0 (1atm) to 10psi but currently only getting 10 cycles in 120 seconds. Enclosed is a diagram of the system. Details: Rate goal is 3hz Power Source is...
  11. B

    HELP? popped blood vessel (i think?)

    So, the other day i was popping a small pimple on the middle to upper part of my nose. A few minutes later on the very tip of my nose (not where the pimple was) a circular dot about the size of a dime appeared. It is redish/purplish in color. It has been present for about 2 days and still...
  12. F

    Thermodynamics - vessel with gas is filled with more gas

    Homework Statement A vessel of capacity 3m^3 contains air at a pressure of 1.5 bar and a temperature of 25 celcius. Additional air is now pumped into the system until the pressure rises to 30 bar and temperature rises to 60 celcius. Determine the mass of air and express the quantity as a...
  13. Amith2006

    Volume of vessel occupied by molecules

    Homework Statement Suppose a closed vessel of volume V contains a mixture of atomic and molecular Oxygen. Will the volume of the vessel occupied by each species be equal to V? I have this doubt because in my book in order to determine the pressure exerted by each species they have taken the...
  14. E

    Power Required for Rotating Vessel

    Power Calculation for Rotating Vessel I need help, please. I have an application with a rotating cylinder in which material is tumbled for processing purposes. The following quantities are known although I have need of generic formulas in the future as these are variables between system...
  15. G

    Static pressure in ducts and vessel

    If air is venting thru a 10" duct and there is a static pressure drop of 2” water column for every 100’ of length at 2000 cfm and the duct opens to a 1000 cubic feet airtight vessel and exits through another 100’ of 10” duct how can you find the pressure drop for the tank alone?
  16. J

    Treatment for Popped Blood Vessel in Mouth

    This may sound stupid but this is what happened. I had a cup and i put it to my mouth, i then sucked the air out so it stuck to my mouth. I guess i did it a little to much cause now my mouth is all red and it has little red dots everywhere where the cup was. It has been a day and it hasnt gone...
  17. T

    Getting Started With A Blood Vessel Problem

    i was hoping for someone to help me get started with this problem == A blood vessel is cylindrical with radius R. and length l. the blood near the boundary moves slowly; blood at the cetner moves the fastest. The velocity, v, of the blood at a distance r from the center of the artery is given by...
  18. S

    What is the process for calculating stress on a torus in a high pressure vessel?

    I am a novice at stress analysis. For my competition, I need to calculate the stress on a torus in vacuum filled with air at pressure P. Here's is what I have managed to do. I have attached an image below. The torus section is an angular section of a curved cylinder. Its angular dimensions are...
  19. Mk

    Popped Blood Vessel: What to Do & Risk Factors

    If I recently had a blood vessel pop in my thumb what should I do? Am I at risk for popping anywhere else?
  20. A

    Fluid Mechanics - Torque at hinge of closed vessel

    The closed vessel contains water with an air pressure of 10 psi at the water surface. One side of the vessel contains a spout closed by a 6-inch diameter circular gate hinged along one side. Horizontal axis of the hinge is located 10 ft below the water surface. Determine the minimum torque that...
  21. M

    Buoyancy and Acceleration: Solving for Tension in a Vessel

    1.The tension in a string holding a solid block below the surface of a liquid (of density greater than the solid) is To when the containing vessel is at rest. Show that when the vessel has an upward vertical acceleration of magnitude a, the tension T is equal to To(1+ a/g)?
  22. D

    Centrifugal force in high pressure vessel

    An enclosed cylindrical* (disc) vessel one inch thick and five inches in radius holding two pounds of fluid at ambient atmospheric pressure (14psi?)and being spun at 30,000 rpm's. Assume the centrifugal force acting on the fluid creates a pressure of 1,000 psi. The question is ... "If the...
  23. C

    Calculating Torque Needed for Compost Vessel

    I am designing an in-vessel composting system - a 21 ft. long 4 ft. diameter steel tube that is mounted and spun on wheels by a hydraulic pump/turbine assembly, coupled to a 60:1 gear reduction box - the hydraulic pump will likely be powered by a small 4-5 HP gas powered motor. My question...
  24. Greg Bernhardt

    A small, 3-chambered vessel for holding medicines

    The answers to each of the clues below are words that could have an alternate definition if the words were read incorrectly. For example, if the word "coward" was incorrectly read as having "co-" as a prefix to the word "ward," its definition could be "to jointly parry or keep something away."...
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