×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • 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.

Students Click Here

Grid heater and flame heater after charge air cooling in diesel engine

thread71-494399

Grid heater and flame heater after charge air cooling in diesel engine

Grid heater and flame heater after charge air cooling in diesel engine

(OP)
I was going through Diesel engine spec of Mercedes diesel engine. I see that there is an option for grid heater or flame heater after charge air cooler, means air to heat before it enters into intake manifold. Can someone, please, explain why one would need air to heat after charge air cooler if we divert air from turbocharger to get cooled in charge air cooler?

Thanks

RE: Grid heater and flame heater after charge air cooling in diesel engine

Under certain cold weather + cold start conditions, you may need to heat charge air briefly until cylinder temperatures are sufficient for continued running. Much depends on the specific engine model and use case. IE for a piece of equipment, difficult cold starts may not be enough of an issue for an added charge air heating system. For an emergency generator, where cold starts need to happen on the first try every single time without fail within a short startup time constraint, charge air heating may be necessary to ensure backup reliability.

RE: Grid heater and flame heater after charge air cooling in diesel engine

(OP)
Hello Swinny,
Thanks for responding.
Is it thermostatically controlled? So, when certain cylinder temp is achieved, it will shut down?

RE: Grid heater and flame heater after charge air cooling in diesel engine

No one has any way to tell you that without knowing what engine and what options. You're better off reading the service manual.

RE: Grid heater and flame heater after charge air cooling in diesel engine

(OP)
Perfect. I got the answer.
It is activated automatically if the temperature falls below a specified value and will shutdown at certain engine temp has reached.
Thanks,Swinny

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.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login

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
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’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:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close