HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  RESOURCE CENTER  |  INDUSTRIES
REGISTER   |   LOGIN   |   HELP
RyanJohnn
User Rank
Iron
Helpful
RyanJohnn   5/17/2013 7:36:48 AM
NO RATINGS
It would definitely helpful and giveing great illustration.thanks

Cabling systems Virginia Cable removal Service

tekochip
User Rank
Platinum
Re: Excellent!
tekochip   4/19/2013 9:23:44 AM
NO RATINGS
I agree, you're a well-rounded engineer capable of solving problems with simple solutions even when they are outside of your discipline. I wish you worked for me, of course, we don't allow smoking in our building.


adamsmith11
User Rank
Iron
Excellent!
adamsmith11   4/19/2013 3:32:24 AM
NO RATINGS
excellent approach. will help in making own.thanks

phone repair richmond va

OhmsLaw
User Rank
Gold
Re: The Case of the Way-Too-Hot Power Supply Unit
OhmsLaw   9/7/2011 11:48:41 PM
If you can give me a rating. TY

Anthony Stewart

EE since 1975.

Greg Stirling
User Rank
Platinum
The Case of the Way-Too-Hot Power Supply Unit
Greg Stirling   9/7/2011 5:46:57 PM
NO RATINGS
Excellent work Rob.  Delivering 1000 units a month sounds challenging enough. This thermal problem benefitted from the application of aerodynamics.  And a clever cost effective design to follow.  Seems as though being multi-disciplinary is an asset to many machine designs...

William K.
User Rank
Platinum
Power supply cooling: the turbulent solution
William K.   9/7/2011 4:01:41 PM
Brilliant engineering indeed! The problem with laminar flow cooling is that there is always a sttagnation zone covering all the fixed surfaces, and the velocity gradient rising as you move away from those surfaces. Finding the cost-effective means of getting turbulent flow was the engineering end of the solution. Good job indeed.

OhmsLaw
User Rank
Gold
Re: Great Project
OhmsLaw   9/7/2011 4:00:10 PM
I took some photo's of the only unit I had.. My original Prototype which was prior to the design completion of the said thermal solution and Origami cables.  I hope this illustrates the point.

Basically I prevented the air from flowing over top the PSU which had a 1/4" gap or so by blocking that with a plastic cover and created more turbulence with a front opening that also increased the linear air velocity which significantly reduces hot spot temperature rise inside the power supply (PSU). In this case form Lambda.   THis prototype was built 4 weeks after a paper napkin design spec and was later finished 3 weeks later and hand delivered to AVAYA in Denver.

http://db.tt/YASRI5s  (< PDF with images )

dan
User Rank
Iron
Great Project
dan   9/7/2011 12:05:13 PM
NO RATINGS
Well explained and engineered solution.  Just as a suggestion pictures of your project will make it more interesting

Alexander Wolfe
User Rank
Blogger
Well done
Alexander Wolfe   9/6/2011 3:17:32 PM
NO RATINGS
A well described and thought out solution. Sorta like the inverse of putting winglets on the edge of modern jetliners.



Partner Zone
Latest Analysis
Yin-Mei Li of the University of Science and Technology of China developed a way to manipulate blood cells using lasers.
We looked at a number of sources to determine this year's greenest cars, from KBB to automotive trade magazines to environmental organizations. These 14 cars emerged as being great at either stretching fuel or reducing carbon footprint.
Doodle3D brings your 2D sketches to life.
Researchers at MIT and Sandia National Labs have observed a reaction in lithium-air batteries that could help improve the design of these cells for electric vehicles and other applications.
Healthcare might seem to be an unlikely target application for the Internet of Things technology, but recent developments show small ways that big-data is going to make an impact on patient care moving into the future.
More:Blogs|News
Design News Webinar Series
5/15/2013 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
5/22/2013 9:00 a.m. California / 12:00 p.m. New York / 5:00 p.m. London
5/29/2013 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
5/30/2013 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
Blogs from Our Sponsors
From Dell / Intel®
New Paradigms in Design Work
Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013    3
Early in my career, I worked as a draftsman and remember the days of drawing on vellum with numbered pencils and Mylar with plastic lead. This was a fun experience in the sense that I ...
From Dell / Intel®
Increased Workstation Performance Is as Easy as 'DPPO'
Trey Morton, Dell, 4/25/2013    2
I've been using workstations for more than 10 years and love finding ways to get more performance from my system. With demanding professional applications that require more power each ...
From Dell / Intel®
Taking Some of the Grit out of Manufacturing
Kirsten Billhardt, Manufacturing Industry Marketing Strategist, Dell, 3/26/2013    5
A lasting memory from my first job as an engineer in an auto assembly plant is standing on hard concrete at six in the morning, vending-machine coffee clutched in hand, listening to ...
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
May 20 - 24, Automation Technologies & Trends for Smarter Homes & Buildings
SEMESTERS: 1  |  2  |  3


DN Radio
Sponsored by
NEXT UPCOMING BROADCAST
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Copyright © 2013 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service