Previous in Forum: Save Electricity   Next in Forum: Insulation class
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
5 comments
Rate Comments: Nested
Anonymous Poster

HP Required

10/16/2010 5:38 AM

what hp required to pull 5 ton of load . trolly having 125 mm dia. of wheel on a rail ?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
rakesh_semwal
Guru
India - Member - New Member Engineering Fields - Electromechanical Engineering - New Member

Join Date: Oct 2006
Location: India, 200 Km. North of Delhi.
Posts: 1393
Good Answers: 53
#1

Re: hp required

10/16/2010 6:35 AM

For the members to reply,speed of trolley is crucial.
Reply
nick name
Guru

Join Date: Mar 2007
Location: City of Light
Posts: 3943
Good Answers: 183
#2

Re: hp required

10/16/2010 9:03 AM

5E-4 (ms^-1)/W or 2kW/(ms^-1) for steel wheels on steel rail.

With rubber tyres the value is about 5 to 10 x higher.

You chose!
Reply Score 1 for Good Answer
No more "Almost" Good Answers.
stevem
Guru

Join Date: Sep 2007
Location: Defreestville, NY
Posts: 1072
Good Answers: 87
#3

Re: HP Required

10/16/2010 9:39 PM

457.8 HP should do it.

__________________
 Charlie don't surf.
Reply Score 1 for Good Answer
Go to Next "Almost" Good Answer
johnnybravo
Commentator

Join Date: Aug 2006
Posts: 89
Good Answers: 3
#4
In reply to #3

Re: HP Required

10/16/2010 10:49 PM

I got 875.4... Oh wait, Calculator upside down

I concur with your results Mr. Stevem.
Reply Off Topic (Score 5)
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#5

Re: HP Required

10/19/2010 4:40 AM

On railways, a "pinch bar" operated by a human being can be used to do this. Human beings are normally rated at less than 0.1Hp.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Reply to Forum Thread
Have a Different Question?
5 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

johnnybravo (1); nick name (1); PWSlack (1); rakesh_semwal (1); stevem (1)

Previous in Forum: Save Electricity   Next in Forum: Insulation class
You might be interested in: Diamond Tools and Wheel Dressers, Rail Services

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical 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 (83 right now)
Show Members
Advertisement