Simulating Hydrogen diffusion out of a chamber (in air)

In summary, the conversation discusses a physical problem involving a small container with a source that releases hydrogen at a slow rate. The container has a small opening and the question is how fast the hydrogen diffuses to the outside. The speaker has created a simulation in Visual Basic 6 using a molecule diffusion speed formula and the diffusion appears to be very slow. They also mention providing a simulation program and source code for others to use.
  • #1
Oliver
1
0
Hello,

I've a fysical problem.

A small container (about 10x10x15cm) has a source which releases hydrogen at a small rate.

The container has an small oppening 30mm^2.

The question is how fast does the hydrogen diffuse to the outside of the container.

I've made simmulation (see attachment) in visual basic 6.
In the simulation I took a molicule diffusion speed of
v = (2*D)^(0.5) (per sec).
D = diffusion constant of hydrogen in air (6.3E-5, giancoli)

The diffution seems to been veeerrrrryyyy slow.
Does this seem correct? Is it good by proxy?


I've included a small visual basic program and source code (not commented).
The program simulates hydrogen diffusion in a user made chamber. The occupation is calculated in the user defined box.

Everybody is free to use the program and sourcecode.


Oliver
 

Attachments

  • Diffusie.zip
    14.1 KB · Views: 211
Physics news on Phys.org
  • #2
Please, post the governing equations.
 

1. What is the purpose of simulating hydrogen diffusion out of a chamber in air?

The purpose of simulating hydrogen diffusion out of a chamber in air is to understand the movement and distribution of hydrogen gas in a specific environment. This can help researchers and engineers better design and optimize systems and processes that involve hydrogen gas, such as fuel cells or hydrogen storage tanks.

2. How is hydrogen diffusion simulated in a chamber?

Hydrogen diffusion can be simulated using computational models and simulations, such as finite element analysis or computational fluid dynamics. These models take into account factors such as temperature, pressure, and concentration gradients to predict the movement of hydrogen gas in a chamber.

3. What are the key factors that affect hydrogen diffusion in a chamber?

The key factors that affect hydrogen diffusion in a chamber include temperature, pressure, concentration gradients, and any barriers or obstacles that may impede the movement of the gas. These factors can greatly influence the rate and direction of diffusion.

4. How accurate are simulations of hydrogen diffusion?

The accuracy of simulations of hydrogen diffusion depends on the complexity and accuracy of the models used, as well as the input parameters and assumptions made. In general, simulations can provide a good estimation of hydrogen diffusion behavior, but experimental data should also be considered for validation.

5. What are the potential applications of simulating hydrogen diffusion out of a chamber in air?

Simulating hydrogen diffusion can have various applications, such as optimizing the design of hydrogen storage systems, predicting the behavior of hydrogen in fuel cells and other energy applications, and understanding the potential risks and safety considerations of handling hydrogen gas in different environments.

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