Chamber Definition and 225 Threads

  1. M

    Time Stasis Chamber: Potential Tech in Near Future?

    sorry if this has been discussed before but I've not had much luck finding anything on the forum search. Basically I am interested in the potential technology behind a time stasis chamber - a pod or something similar that would allow humans to travel great distances in space without them ageing...
  2. C

    Physics of a Cloud Chamber: Neutrons, Kinetic Energy, and Ionization

    Why can't I have a neutral particle come into a cloud chamber and leave a track? I was reading about cloud chambers and it says when the charged particle comes in it ionizes the vapor in the chamber. But why couldn't a neutron come in and ionize the particles in the chamber with its kinetic...
  3. C

    Mixing chamber with multiple inlets

    Hi I was wondering if someone could help me with this question. Question 4 uploaded in picture. Ok, so far this is what I have found Pipe 1: m1=2kg/s P1=1000kpa T1=100 C h1=334.82kJ/kg Pipe 2: sat-liquid T2=60 C P2= 1000kpa h2=291.36KJ/kg Outlet: sat vapor P3=1000kpa V=20...
  4. L

    Thermal Vac chamber pressure gain question

    Hi group, I work at Thermal Vacuum Chamber, and we had an incident last night where our chamber, Which is 70' H x 30' D, was pumped down to a pressure of 3.7E-7. There was a release of gas into the chamber abruptly last night that caused the pressure in the chamber to rise to 5.0E-7, before it...
  5. D

    Thermally isolated cylinder - work done and temperature changes in each chamber

    Homework Statement There is a closed, thermally insulated cylinder, separated into two chambers by a moveable, frictionless, gas-tight, thermally insulating piston. Initial, the volume of each chamber is 3 liters, and each contains an identical monoatomic ideal gas at pressure of 1 atmosphere...
  6. H

    Designing a combustion chamber (solid mechanics problem)

    Here's my problem: I want to design a cylindrical combustion chamber for a hybrid propelent rocket. Basically, I will burn paraffin and use oxygen as oxidant. As I will be using stainless steel, I thought I could approximate the maximum stress that must be resisted by the material through a...
  7. X

    Differential Equations for a Gas-Filled Chamber System

    I'm trying to figure out which set of differential equations describe the following quite general but relatively simple system: A chamber which volume can be changed by moving a piston filled with a gas. Additionally, gas can be released from the chamber through a relief valve and heat can be...
  8. K

    Q) A closed chamber containing working refrigerator is pefectly

    Q) A closed chamber containing working refrigerator is pefectly insulated and d door of refrigerator is opened, wat ll happen to temperature inside the chamber a)Decrease b) Remain same c) Increased d) Cant say coz it depends on quality of insulation
  9. T

    How Does Gas Turn into Plasma and Fuse in a Magnetic Confinement Fusion Reactor?

    Where does the heat come from? What pushes the atoms together?
  10. M

    Building an atmospheric chamber

    Building an "atmospheric chamber" I have to build a chamber (ok, large box) to do some atmospheric pressure tests. The box will be 48 inches square. I have to simulate going from sea level (0 feet, 14.696 psia) to 7000 feet (11.34 psia). I'm thinking of building the "box" from 3/4" plywood...
  11. M

    Understanding bubble chamber tracks

    Hey. :) I am a Year 13 student and do not have to know anything about bubble chambers. However, they are mentioned in my textbook and I am interested in them. The textbook states: "Measuring the curvature of the tracks allows the charge and mass of the particles to be deduced. The spiral...
  12. JJBladester

    Damped oscillations in a vacuum chamber

    Homework Statement A 200 g oscillator in a vacuum chamber has a frequency of 2.0 Hz. When air is admitted, the oscillation decreases to 60% of its initial amplitude in 50 s. How many oscillations will have been completed when the amplitude is 30% of its initial value? Homework...
  13. A

    Harmonic Dampening inside of a combustion chamber

    Could anyone recommend any literature on harmonic dampening inside of a combustion chamber (augmented injector plates and chamber geometry to reduce vibration)? It seems resources are rather scarce on the subject so if anyone knows of any websites, books, papers, etc. that might be helpful, I...
  14. M

    Normal modes in a acoustic chamber

    Have a project to do on an acoustic resonance chamber, a loudspeaker attached to a perspex box with a copper pipe, there was a microppohne inside the chamber connected to oscillloscope. We investigating a few variables in most detail was route [1] [1]damping by chainging materials in the...
  15. J

    Spherical gas chamber, change of pressure

    Homework Statement A sphere is filled with a gas which has a constant temperature T. The pressure in the sphere starts at p0 and the spheres radius is r. Assume that a small area (A) of the sphere is held at a very low temperature, while the rest of the surface holds the temperature T. Also...
  16. A

    Devices that can inject air-fuel mixture into the combustion chamber

    hey, I need all the help i can get on this one... can u guys tell me if there is any device that can be used instead of an ordinary fuel injector since i want it to be able to inject an air-fuel mixture. since the normal injector can't inject air i desperately need another device...
  17. J

    The cylindrical chamber electric field

    In the cylindrical chamber, the voltage is applied to a very thin wire, a few mills of an inch in diameter, stretched axially at the center of the cylinder. The cylinder wall is usually grounded. The electric field is, in this case, E=\frac{V_{0}}{Ln(b/a)r} where a = radius of the central...
  18. C

    Charged particle in a cloud chamber?

    Homework Statement when a charged particle enters a magnetic field in a cloud chamber, why does it move in a circular path instead of straight line? I have no idea why. please help Homework Equations The Attempt at a Solution it has something to do with the r changing? as I said...
  19. LarryS

    Uncertainty Principle in Wilson Cloud Chamber Measurements

    An alpha-particle produced by radioactive decay leaves a visible continuous track in a Wilson Cloud Chamber. As it collides with and ionizes the molecules of the vapor, its position is constantly being “measured” by the vapor molecules. If a magnetic field is present, its track will be curved...
  20. S

    How to measure O2 in a chamber?

    Dear all: I want to make a chamber as O2-free. The chamber is not perfectly sealed, so it has some small holes. I have used N2 gas (by pumping N2 from one input and escaping of O2 from holes in junctions). Now, I want to measure the amount of remaining O2 inside chamber. How can I do that? Is...
  21. T

    What is the flow velocity of a rocket engine's thrust chamber?

    Hello. I am trying to find the thrust chamber flow velocity for a rocket engine, but no literature seems to be able to come up with a solution for this. The best I have found is "Rocket Propulsion Elements" which states that the value probably lies somewhere between 200-400 ft/sec. But in...
  22. S

    Need help making a cloud chamber

    OK I know many people here are familiar with cloud chambers particularly those of you who are teaching. I have never built one but I want to go all out on my first attempt. I have seen plenty of instructions from researching through google and I was wondering if you guys have any additional tips...
  23. K

    Ionization chamber and GM tube

    Homework Statement What are the difference between ionization chamber and GM tube in structure which make them have different functions? The Attempt at a Solution Higher voltage is applied to GM tube so that electron avalanche can occur. Then I wonder that if higher voltage is...
  24. P

    Designing a Plenum Chamber for Motorcycle Supercharging

    Gday all I am currently supercharging a 1000cc 4 cylinder motorcycle of mine, i am up to the stage of designing the plenum chamber, as usual there are heaps of designs yet not much in the way of actuall theory and mathematics on how these people came up with them. Who knows if all they did was...
  25. R

    Heat transfer inside engine combustion chamber

    Hi, I'm not sure if I've got this in the right section, but I'm hoping someone can point me in the right direction. I'm trying to create a model of what's actually happening during the combustion cycle in an engine and where the energy is going. As the intake valve closes and the piston...
  26. B

    Designing an inline flare gas combustion chamber

    I have built a nice biomass gasifier that produces about 700,000 btu's of heat per hour by burning or flaring the gas that comes out of it. What I want to do is, to flare the gas in an enclosed chamber so I would be able to capture all the exhaust and run it through some heat exchangers for...
  27. C

    Why Does Fission Chamber React to Neutron Fluxes Over Source Range?

    why does fission chamber start to work from neutron fluxes more than source range in spite of being a kind of ionization chamber that is sensitive to gamma rays?
  28. E

    Particle Trajectory & Velocity in Bubble Chamber vs HUP

    Hi! Let's say I have a bubble chamber and a particle traveling in it. I know the trajectory of the particle, because I can see the bubbles. But if I measure the time elapsed between the appearance of the first bubble and of the last one, I know how much time the particle took to follow the...
  29. V

    Is a double/single slit experiment possible in a gas chamber?

    Were there any attempts to setup double/single slit experiment inside a gas chamber, bubble chamber or similar, so that particle trajectories would leave visible trails? This seem to be the easiest way to figure out what exactly is going on, but internet search returned no result about any such...
  30. JK423

    Double slit experiment in a Bubble Chamber

    Has this type of experiment ever been performed? Firing electrons one at a time we can easily get the which-path information and see if interference dissapears or not. What actually happens? Also, if we do the double slit experiment with a usual laser but in a smoked environment (in order to...
  31. S

    Diffusing an electron beam throughout a chamber

    Here's the basic setup: A cathode ray tube is producing an electron beam which leads into a chamber. Would it be possible to put some sort of lens at the entrance of the chamber, so as to diffuse the electrons throughout said chamber. Just to be clear, my main question is about the lens...
  32. Q

    Building a Cloud Chamber: Tips and Tricks

    http://www.lns.cornell.edu/~adf4/cloud.html" Has anyone tried this? It looks really cool, and I am thinking about giving it a shot, but I'd like to know how easy it is to get it working, or if there are any other things I should know. One thing I am concerned about is the directions say...
  33. A

    Precombustion chamber and compression chamber

    i 'd like to ask abt the difference between precombustion chamber and compression chamber which used in diesel engines (indirect injection)??
  34. M

    Why dont neutral particles in a bubble chamber leave tracks?

    Even if they have kinetic energy, neutral particles don't leave tracks behind. Why is that so? Also, can someone please explain how a cloud chamber works? Thanks!
  35. N

    Vacuum Chamber Suction Pressure: -100 Kpa or 0 Kpa?

    This is NOT a "problem", it's a rather a question. Let's say I've got a vacuum chamber, and I suck the air out of it using a vacuum pump that is capable of doing -200 Kpa. Let's also say that there is a valve on this chamber. After a full vacuum has reached, I open this valve WHILE the pump is...
  36. M

    Creating a Mini Self-Sustaining Star: The Superstrong Chamber Experiment

    If someone had a superstrong chamber that could withstand anything (hypothetically) if they constantlty fed the correct materials at the correct state into the chamber could they create a mini self sustaining star?
  37. D

    Why particles in a bubble chamber seam to disappear?

    are antimatter particles the explanation for why particles in a bubble chamber seam to disappear? I've read some on antimatter and supposedly some of it's been contained, how do they know what they have is antimatter? so many things theyre all confusing
  38. D

    Pressure vessel test chamber problem

    I have to design a chamber where a range of small pressure vessels can be safely pressure tested. They range up to around 10 litres in capacity and are tested at 45 barg. The vessel is a thick wall tube with two domed end caps welded construction. I would like some guidance on how to calculate...
  39. D

    How Does an Electron Move in a Magnetic Field Within a Cloud Chamber?

    An electron enters a cloud chamber which has a magnetic field B but the path of the electron is not perpendicular to the magnetic field. I understand that the electron path will describe a spiral. Does the v in the equation F = q(v x B) refer to the component of the electron's velocity which is...
  40. C

    Ionisation chamber - doubt about current nature and residue

    Homework Statement This is from Advanced Physics by Adams and Allday, section 8, practice exam questions, question 25. An α-source with an activity of 150 kBq is placed in a metal can. A 100 V d.c. source and a 109 Ώ resistor are connected in series to the can and the source. This...
  41. S

    Calculating Force on Chamber in Water Flow

    Homework Statement A chamber has water entering horizontally with a velcoity of 80m/s with an inlet of an area of 0.1m^ and leaving through an opening of area 0.15m^2. The exiting flow makes an angle of 30 degrees with respect to the entering flow. What force is needed to hold the chamber in...
  42. S

    Electron double slit experiment in bubble chamber

    We will not get an interference right? Why? Because the electron interacts with the system? Or the "measurement" forces the wave function to collapse? What if we put a black cloth on the chamber and only see the photographic film? What if we place the chamber before the slits. What if we bring...
  43. S

    View Windows on a Combustion Chamber

    Does anyone have view windows which they installed on their combustion chamber? My team and I are going to install quartz windows on 304 stainless steel, and so far the coefficients of thermal expansion look really different. We are also debating on the shape of the windows. Any hints would...
  44. K

    How Can I Build a High-Pressure Chamber for Chemical Reactions at Home?

    Hello! I was wondering how I could make a pressure chamber to aid some chemical reactions? The higher the pressure I'd be able to put into the better, although I am not really concerned as I don't particually have anything in mind. I'd probably like to be able to heat it up a bit - if the...
  45. F

    Rocket Engine Combustion Chamber Equations

    Good evening all, I was wondering if anyone would be able to point me in the right direction to equations in regards to designing a proper combustion chamber for a rocket engine, as well as for the throat/De Laval nozzle as well. I've looked around and I can't seem to find anything that...
  46. C

    Creating a heated Vacuum chamber.

    Not sure whether this would be better in materials or mechanical. I'm building a vacuum chamber which is going to house silica gel, I've got a prototype made out of PVC, but I'm afraid of running it up to 180-200 deg F to regenerate the silica. For the large scale I'm going to need to build a...
  47. H

    Could an Orbiting Cloud Chamber Effectively Capture High-Energy Cosmic Rays?

    I've read that cosmic rays are far higher energy than those generated in manmade particle accelerators. Would it be worthwhile to build an orbiting cloud chamber to collect cosmic rays before they impact the Earth's atmosphere? Or would the collision rate be too low to provide statistically...
  48. H

    What is the Difference Between a Microwave Cavity and Chamber?

    hi , I am confused with these two terms microwave cavity and microwave chamber . Some say that the microwave chamber inside which food gets cooked acts like a resonant cavity ( which I believe is not true ) because resonance must best be avoided inside the chamber .Resonance I think...
  49. B

    Can Methylated Spirits and Liquid Nitrogen Work for a Cloud Chamber?

    Hi, I'm attempting to make a condensation cloud chamber to display alpha and beta particle tracks to a class of school kids as part of my placement. I get how it all works but I'm having real trouble with two things... 1) Finding a source of high purity alcohol. 2) Getting hold of...
  50. magi

    Wood fire in compressed air chamber?

    Hi. What happends when i put fire to wood that I have in a chamber with a pressure of about 15 kg/cm2 = 14.710 Bar = 213,3 Psi. Will it burn as usuall or much faster? Will I get a very high pressure? How High pressure can I get? Magi
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