×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

#### Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

# Heat Transfer of Gaseous Hydrogen to an Orifice Plate

## Heat Transfer of Gaseous Hydrogen to an Orifice Plate

(OP)
I am a graduate student in mechanical engineering and am doing an independent research class. One of the things I need to do is to calculate the heat transfer of high temperature gaseous hydrogen on an orifice plate. I drafted up a rough sketch and have attached it below. I will also need to calculate pressure difference, to determine the force on the plate.

The issue is that the orifice plate will likely experience the highest heat load in the system, surpassing what the material can withstand. So an active cooling method must be explored. One of the first big steps I need to make is to calculate the heat transfer from the hot gaseous hydrogen to the orifice plate in a rocket nozzle simulator. I'm inclined to classify this as a forced convection problem. But I am unsure how to initially approach the problem since the orifice plate is the object of interest and would be normal to the internal pipe flow. So I doubt I can use parallel, internal pipe/flat plate flow analysis?

The variables in the schematic are either given or assumed. I would have provided some numerical values, but I am not allowed to disclose such information. Any tips or insight from others is appreciated. I am also interested in any software that could simulate this kind of problem. I tried out Energy2d, but it is not uncodnitionally stable, so it blows up when dealing with high temperature, high velocity convection flows such as this.

### RE: Heat Transfer of Gaseous Hydrogen to an Orifice Plate

I would call that an orifice plate, not an annular orifice plate.

Good Luck,
Latexman

### RE: Heat Transfer of Gaseous Hydrogen to an Orifice Plate

There is a student forum now for student questions. It looks like you are trying to simulate heat transfer in a rocket nozzle, which is a very complex and dynamic problem where things are changing in milliseconds. You have no heat output so the orifice plate will rapidly reach the inlet hydrogen temperature

#### Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

#### Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

#### Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a partâ€™s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!