Previous in Forum: How to Read the Hydraulic Drawings   Next in Forum: Minimum Pipe Length Between Two 90 Degree Elbows
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
8 comments
Rate Comments: Nested
Anonymous Poster

Heat Energy Dissipation During Centrifuge Deceleration

02/08/2011 1:51 PM

How do I calculate the amount of heat energy dissipated during centrifuge deceleration (without brakes) from 6500 rpm?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/08/2011 2:10 PM

Must be homework day. It's a good thing you didn't get the "egg drop" project. It makes people really testy when we won't do their assignment for them.

That's gonna be hard to calculate anyway. First, you'll need to know what the density of the air is during your project. Then.................
Reply
Anonymous Poster
#3
In reply to #1

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/08/2011 2:49 PM

This is not a homework.
Reply
Doorman
Guru
Hobbies - DIY Welding - Don't Know What Made The Old Title Attractive... Popular Science - Weaponology - New Member United States - US - Statue of Liberty - 60 Year Member

Join Date: Apr 2009
Location: Yellowstone Valley, in Big Sky Country
Posts: 7425
Good Answers: 295
#4
In reply to #3

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/08/2011 3:08 PM

Are you heating your house with a centrifuge?

__________________
 Semper Ubi Sub Ubi
Reply
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#5
In reply to #4

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/08/2011 3:28 PM

I'm really far too busy for this.
Reply
3
Usbport
Guru
Engineering Fields - Optical Engineering - Member Engineering Fields - Engineering Physics - Member Engineering Fields - Systems Engineering - Member

Join Date: Apr 2010
Location: Trantor
Posts: 5363
Good Answers: 647
#2

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/08/2011 2:28 PM

Step 1. Calculate how much energy it has when it is spinning at 6500 rpm.

Step 2. Think about what you did in step 1.

__________________
 Whiskey, women -- and astrophysics. Because sometimes a problem can't be solved with just whiskey and women.
Reply Good Answer (Score 3)
No more Good Answers.
Anonymous Poster
#8
In reply to #2

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/09/2011 9:24 AM

Thank you!
Reply
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#6

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/08/2011 3:55 PM

Same as with brakes, only slower.

ΣE = 0.

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Reply
Codemaster
Guru

Join Date: Jul 2005
Location: Stoke-on-Trent, UK
Posts: 4496
Good Answers: 137
#7

Re: Heat Energy Dissipation During Centrifuge Deceleration

02/09/2011 6:39 AM

If there are no brakes, why does it matter? But the energy dissipated is the same with or without brakes, see #2. And most of the energy ends up in the air in the room in either case.

__________________
 Give masochists a fair crack of the whip
Reply
Reply to Forum Thread
Have a Different Question?
8 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

Anonymous Poster (2); Codemaster (1); Doorman (1); lyn (2); Tornado (1); Usbport (1)

Previous in Forum: How to Read the Hydraulic Drawings   Next in Forum: Minimum Pipe Length Between Two 90 Degree Elbows

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (112 right now)
Show Members
Advertisement