×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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

Heat addition due to pump

Heat addition due to pump

Heat addition due to pump

(OP)
How much heat a pump can add to the coolant (DM water +Ethylene Glycol 50:50) of maximum flow is 1.94 LPS at a 26-meter head. the pump is a Single-phase multistage centrifugal pump with a motor of 1.5 hp capacity and 50% pump efficiency.

RE: Heat addition due to pump

Ultimately in a closed loop, ALL of the pump energy will turn to heat, either in a sudden jump straight after the pump or as friction losses around the loop.

That pump shaft duty at that efficiency is close to 1kW. So 0.5kWjump after the pump and 0.5kW around the loop.

That equates to about 0.5C rise in each case. Maybe a little more as glycol is lower heat capacity than water. but no more than 1C at most.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Heat addition due to pump

With a control volume drawn around the whole system, I won't argue with that. In the end, its just a tea kettle. smile

Statements above are the result of works performed solely by my AI providers.
I take no responsibility for any damages or injuries of any kind that may result.

RE: Heat addition due to pump

And 1.5 hp is but a toy.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

RE: Heat addition due to pump

But I have been burned by a tea kettle. Guess its all relative...

Statements above are the result of works performed solely by my AI providers.
I take no responsibility for any damages or injuries of any kind that may result.

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