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Compressor operation below dictated RPM

11/27/2014
posted in Mechanical Engineering
by ducon
Hello everybody, I have client who told me that he has 2 sets identical Atlas Copco Compressor with VSD, 120.8 l/s, 12.8 bar and 3730 rpm. His electr...
Views: 21, Comments: 7
Last comment 11/27/2014 by lyn
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About Droop

11/27/2014
posted in Electrical Engineering
by BUDDHIKA
Dear sir, how to work droop in generator running base load,load sharing,and utility paralleling??
Views: 20, Comments: 5
Last comment 11/27/2014 by Rixter
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Putting the Green Duck into the Evening's Nest

11/27/2014
posted in Sustainable Engineering
by Don from Oz
Solar energy on domestic Australian roof tops has changed the midday demand. But the evening cooking, lighting and aircons just demand too much capita...
Views: 57, Comments: 14
Last comment 11/27/2014 by Don from Oz
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Strange Rubbing Noise in My Silverado

11/27/2014
posted in Transportation
by Labyguy
Hi Guys, I have a 2003 Silverado with over 145K miles on it. 4WD. In the past couple of weeks, I've heard a rubbing or scrapping noise coming from the...
Views: 39, Comments: 7
Last comment 11/27/2014 by Crabtree
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Carbon Steel, Icing in Ammonia Service

11/27/2014
posted in Mechanical Engineering
by Anonymous Poster
Hi, if liquid ammonia blows down into carbon steel piping and causes icing ( about 2" thick). the piping is at atmospheric condition. what remedial a...
Views: 47, Comments: 5
Last comment 11/27/2014 by Tornado
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Atlas Copco Air Compressor Problem

11/27/2014
posted in Mechanical Engineering
by zubair khalil
I am using Atlas Copco air compressor 37 VSD FF (3600 rpm) for last 04 years, it was used with the load of 1200 rpm for last 04 years. but now as per...
Views: 34, Comments: 3
Last comment 11/27/2014 by Codemaster
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Parallel Operation Of Transformer

11/27/2014
posted in Electrical Engineering
by BALEN DEKA
In our organization we had two 4000 KVA transformer in parallel operation.Now we want to purchase an additional 4000 KVA transformer in case of failur...
Pathfinder Tags: operation parallel transformer
Views: 68, Comments: 3
Last comment 11/27/2014 by 7anoter4
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Pull Up Torque - Induction Motor

11/26/2014
posted in Electrical Engineering
by anvesh
I want to know why torque of an Induction motor decreases upto certain amount and reaches at Pull-Up torque. What is the reason of decrease in torque....
Pathfinder Tags: curve Induction motor slip speed ...
Views: 90, Comments: 7
Last comment 11/27/2014 by 7anoter4
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Circular Key Stress Concentration Factor

11/26/2014
posted in Mechanical Engineering
by STKM
Hi I didnt find any information about circular key seat stress concentration factor. All information about only standard keyseats. Anyone does know...
Pathfinder Tags: key keyseat stress stress concentration
Views: 64, Comments: 11
Last comment 11/27/2014 by lyn
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Combining Wind and Solar to 24/7 Power Blog

11/26/2014
posted in Mechanical Engineering
by James Stewart
Recently saw an article: http://www.sciencedaily.com/videos/7bdf3c8319a5ffeae565a710fea6ea74.htm about how an Israeli firm is storing solar thermal p...
Pathfinder Tags: friction thermal power thermal storage wind power
Views: 116, Comments: 3
Last comment 11/26/2014 by Gadepalli Subrahmanyam
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Wall Thickness Calculation for 30 Year Service Life

11/26/2014
posted in Mechanical Engineering
by Anonymous Poster
Dear Friends, I have a requirement wherein I have to calculate the pipe thickness for 30 year life service. I think that the ASME B31.1 formula is va...
Views: 154, Comments: 3
Last comment 11/26/2014 by Whitephone
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Checking Over or Under Spray of Glaze on Ceramic Sanitaryware

11/26/2014
posted in Manufacturing
by miller gerber sa
Hi All, We manufacture ceramic sanitaryware and have occasionally a problem that the pieces are more than oversprayed under sprayed. This the causes...
Views: 109, Comments: 17
Last comment 11/27/2014 by vsar
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Light Energy Puzzle

11/26/2014
posted in General Discussion
by G.K.
Hello everybody. I was wondering what will happen if we insert light energy in a closed system continuously. E.g. look at my next drawing: A laser...
Views: 247, Comments: 31
Last comment 11/27/2014 by dkwarner
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Record Sea Ice?

11/24/2014
posted in General Discussion
by Fredski
http://www.dailymail.co.uk/news/article-2681829/Global-warming-latest-Amount-Antarctic-sea-ice-hits-new-record-high.html"America's National Snow And I...
Views: 339, Comments: 81
Last comment 11/27/2014 by Fredski
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Bicycle Spoke Design

11/22/2014
posted in Mechanical Engineering
by adlfurball
Hi to all, Can I know how exactly am I to manually calculate the stress in spokes when force is exerted to the bicycle wheel? In online search...
Views: 500, Comments: 64
Last comment 11/27/2014 by phph001
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Simply Supported Deam Beam Deflection

11/23/2014
posted in Civil Engineering
by danny740
Hi, I have a problem with a simply supported deep beam which has a uniformly distributed load. The beam is simply supported at both ends but I...
Pathfinder Tags: deep beam simpy supported
Views: 359, Comments: 49
Last comment 11/27/2014 by Codemaster
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Can Website Code Suddenly Malfunction After More Than 1 Year

11/23/2014
posted in Software & Programming
by Anonymous Poster
I had a website made up to some well defined specifications and they were agreed on by the developer and for more than one year the website functioned...
Views: 296, Comments: 45
Last comment 11/26/2014 by Yuval
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Heat and Light Energy Converted to Mass

11/22/2014
posted in Mechanical Engineering
by Anonymous Poster
Hi, I just wanna ask. Is there a possibility of heat energy and light be converted to mass? I've seen equations like Heat = m*Cp*dT or E=mc^2 why giv...
Views: 389, Comments: 37
Last comment 11/27/2014 by redfred
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Force in Space

11/25/2014
posted in General Discussion
by Abhishek Rock
if we forcing two body with a same force in space, if its move then what is the velocity of these two body( both bodies have diffrent mass )
Views: 279, Comments: 34
Last comment 11/27/2014 by TrevorM
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Latest News from IHS Engineering360

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Caption This for 11/28/14

11/27/2014 posted in Caption This!
by Kaplin
This week's image: Be sure to vote for your favorite caption! Thanks to luyombya for submitting this image.
Pathfinder Tags: Caption this engineering images funny images
Views: 22, Comments: 5
Last comment 11/27/2014 by Loupy
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Original Originals

11/27/2014 posted in Hemmings Motor News Blog
by dstrohl
(Editor's note: This first appeared, in modified form, in the April 2007 issues of Hemmings Sports & Exotic Car. It's still sound advice, which i...
Pathfinder Tags: classic auto Parts repair restoration
Views: 15, Comments: 0
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Technologies to Promote Self-healing

11/27/2014 posted in Chemical Manufacturing
by IHS GlobalSpec eNewsletter
Comic book heroes and cartoon characters that can heal themselves are the stuff of fiction. But, wait, not so fast, says the U.S. Department of De...
Views: 22, Comments: 1
Last comment 11/27/2014 by 70AARCuda
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Lifecycle of The Mayflower

11/26/2014 posted in The Engineer's Notebook
by HUSH
As has become CR4 happenstance, I am one of the last ones to post before Thanksgiving. To be honest, I'm not in the office this Wednesday and haven'...
Pathfinder Tags: Mayflower Thanksgiving transocean voyage
Views: 105, Comments: 4
Last comment 11/27/2014 by lyn
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“There’s a very fine line between unique and strange."

11/26/2014 posted in Hemmings Motor News Blog
by dstrohl
"I have a saying that I've stuck with as a designer," said retired AMC and Chrysler designer Vince Geraci. "There's a fine line between unique an...
Pathfinder Tags: amc design Marlin rambler
Views: 137, Comments: 2
Last comment 11/26/2014 by europium mkII
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Hybrid Micro-grid Merges Renewable Energy Systems

11/26/2014 posted in Alternative & Renewable Energy Blog
by IHS GlobalSpec eNewsletter
Ten major clean energy tech companies will participate in the development of a hybrid micro-grid integrating diverse renewable energy technologie...
Views: 51, Comments: 1
Last comment 11/26/2014 by Tornado
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What's That Smell?

11/25/2014 posted in Hemmings Motor News Blog
by dstrohl
Over the last 29 years, it's happened more times than I can count. The second I spray degreaser, carburetor cleaner, primer, paint or anything...
Pathfinder Tags: garage repair restoration smell
Views: 261, Comments: 12
Last comment 11/27/2014 by Kevin LaPaire
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Optimism Prevails at Supplier Summit

11/25/2014 posted in Aerospace Blog
by IHS GlobalSpec eNewsletter
Participants in a recent survey conducted by GE Capital see only a rosy future for aerospace manufacturing. Supplier companies are building producti...
Views: 30, Comments: 0
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Will 3D Printing Reduce or Increase Plastic Waste?

11/24/2014 posted in Elasto Proxy's Sealing Solutions Blog
by Doug Sharpe
Does your office still use computer printers and copy machines? Thirty-nine years ago, Business Week magazine foresaw a paperless office. Although s...
Pathfinder Tags: 3D Printing additive manufacturing plastic products plastic waste
Views: 103, Comments: 2
Last comment 11/27/2014 by Rixter
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How Flexible Honing Supports Engine Performance

11/24/2014 posted in BRM's Flexible Honing, Surface Finishing, and Deburring Blog
by Brush Research
Flexible honing promotes engine performance by imparting the ideal surface finish to cylinder walls. During engine manufacturing, cylinders are bore...
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What Were The Cars That Really Mattered In Your Life?

11/24/2014 posted in Hemmings Motor News Blog
by dstrohl
All of us have our favorite cars-cars we've known, cars we've owned, cars we've loved, cars we wish we could own. But what were the most influe...
Pathfinder Tags: classic auto favorite preferences
Views: 206, Comments: 26
Last comment 11/26/2014 by tonyhemet
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Webb Telescope's "Heart" Unscathed

11/24/2014 posted in Scientific Instruments
by IHS GlobalSpec eNewsletter
The sensitive instruments housed in the James Webb Telescope's Integrated Science Instrument Module, or ISIM, just survived 116 days in the frigid col...
Views: 107, Comments: 8
Last comment 11/26/2014 by James Stewart
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Breaking the Speed Limit Again?

11/23/2014 posted in Semiconductor & MEMS Fabrication
by IHS GlobalSpec eNewsletter
As many in the semiconductor industry lament the speed limitations imposed by silicon chips, these researchers are exploring a promising alternati...
Views: 184, Comments: 4
Last comment 11/24/2014 by Kilowatt0
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Start the (Sensor) Printing Presses

11/22/2014 posted in Sensors & Switches
by IHS GlobalSpec eNewsletter
Pervasive sensing - which demands vast quantities of inexpensive sensors - opens the door to the much-discussed Internet of Things (IoT). In turn...
Views: 66, Comments: 0
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Reheating Dinner

11/22/2014 posted in Biomedical Engineering
by Chelsey H
I recently bought myself a crock pot which means I have delicious meals and lots of leftovers. Eating leftovers for a week got me thinking about whe...
Views: 350, Comments: 26
Last comment 11/26/2014 by phoenix911
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What's New in Filtration

11/21/2014 posted in Water & Wastewater Systems
by IHS GlobalSpec eNewsletter
There's no shortage of water in the world. The problem is that only a small percentage of the water on Earth is fit for human consumption. And tha...
Views: 150, Comments: 3
Last comment 11/24/2014 by James Stewart
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