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Mechanical Engineering

15802 threads, 117003 comments (18 Viewing)

Difference between unbalance and impbalance

10/23/2014 by mratheesh05
Can anybody explain about the difference between unbalance and imbalance of Compressor rotor system.
Pathfinder Tags: Compressor unbalance vibration
Views: 29, Comments: 3
Last comment 10/23/2014 by Anonymous Poster

Determining Correct Crimp Procedure

10/21/2014 by LiamQB
Hi, Firstly, this is my first post here. Glad to be part of the community! I am trying to determine how to calculate the correct crimp needed to ens...
Pathfinder Tags: Crimp Pull force
Views: 207, Comments: 12
Last comment 10/22/2014 by nick name

Pressure Relief Valve Settings

10/21/2014 by Jan Botha
Hi, how do you cold set a pressure relief safety valve to compensate for high temperature?
Pathfinder Tags: pressure relief valve
Views: 228, Comments: 12
Last comment 10/22/2014 by dclarihew

Evaporation Cooling Technology

10/20/2014 by tonyhemet
Hi, this is my first post on cr4. I have read several of the posts here and have gained valuable information. I own/operate an evaporation ( swamp ) c...
Views: 233, Comments: 8
Last comment 10/22/2014 by James Stewart

Static Pressure(s) Along a Cross-Section of a Duct

10/20/2014 by Yuri B.
Does SP remains the same along the whole cross-section of a duct ? I mean, does not larger "turbulence" near duct surfaces make the SP there different...
Views: 133, Comments: 7
Last comment 10/21/2014 by IdeaSmith
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See all Blog Entries

Section Blogs

Valve Technology Blog

69 blog entries, 518 comments (0 Viewing)

Lead-free Law Confusion Clarified

10/19/2014 by IHS GlobalSpec eNewsletter
Regulations governing the lead content of valves and other components of potable water systems went into effect in January, but confusion remains. Acc...
Views: 131, Comments: 1
Last comment 10/21/2014 by phoenix911

Solar Rays Emerge as a Way to Treat Water

09/08/2014 by IHS GlobalSpec eNewsletter
Communities around the world are beginning to use solar panels to power water and wastewater treatment systems. In Hemingway, SC, the community upgr...
Views: 174, Comments: 0
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Workbench Creations

150 blog entries, 1912 comments (0 Viewing)

To an Engineer Anything Can Be Building Materials

01/06/2014 by frankd20
A fun few-hour project done on a whim, I will let the pictures speak for themselves.
Pathfinder Tags: igloo snow building
Views: 1187, Comments: 6
Last comment 01/07/2014 by artsmith
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Pneumatics Blog

95 blog entries, 630 comments (1 Viewing)

Fluid Power to the Rescue

10/15/2014 by IHS GlobalSpec eNewsletter
Researchers are using both pneumatic and hydraulic power in efforts to help patients suffering from crippling injuries. In this article, Hydraulics...
Views: 79, Comments: 0

Energy Storage Solution in the Bag?

09/13/2014 by IHS GlobalSpec eNewsletter
Can air and water combine to meet the challenge of storing energy from renewable sources? A Canadian start-up company called Hydrostor thinks so....
Views: 369, Comments: 12
Last comment 10/16/2014 by adreasler

Getting a Lift from Vacuum

06/20/2014 by IHS GlobalSpec eNewsletter
Aging baby boomers who lose mobility can also lose access to the upper floors of their homes. A chair lift can get the elderly and disabled upstai...
Views: 663, Comments: 8
Last comment 06/23/2014 by phoenix911
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Pump Technology Blog

76 blog entries, 541 comments (0 Viewing)

Motors Matter: Understand the Differences Between Immersible and Submersible

10/02/2014 by IHS GlobalSpec eNewsletter
Pumps & Systems presents this educational essay explaining the key design characteristics and application criteria pumping system designers an...
Views: 200, Comments: 0

Treating a Treater's Chemical Dependency

02/18/2014 by IHS GlobalSpec eNewsletter
When a Washington state wastewater treatment plant replaced traditional tube-element peristaltic pumps with a new metering pump, its chemical costs d...
Views: 499, Comments: 2
Last comment 02/18/2014 by SavvyExacta
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Drives Blog

68 blog entries, 883 comments (0 Viewing)

Mobile Strategy for Process Monitoring and Control

09/21/2014 by IHS GlobalSpec eNewsletter
Tablet computers, smartphones and other mobile wireless devices are infiltrating industry, for numerous reasons - portability, immediate data coll...
Views: 161, Comments: 1
Last comment 10/03/2014 by jdsighter

What's Driving Designers to Digital Simulation?

04/18/2014 by IHS GlobalSpec eNewsletter
The use of virtual design tools - motion-design software and related products - by mechanical, electrical, and control engineers receives the spo...
Views: 454, Comments: 4
Last comment 04/21/2014 by Brave Sir Robin

Networking to Sustain Capacity in the Process Industries

04/03/2014 by IHS GlobalSpec eNewsletter
A new white paper from the Open DeviceNet Vendors Association (ODVA) presents its vision for open process integration in the processing industry,...
Views: 310, Comments: 0
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Hydraulics Blog

61 blog entries, 460 comments (0 Viewing)

Hydraulics Powers One-off Chinese Swing Bridge

08/31/2014 by IHS GlobalSpec eNewsletter
When Chinese engineers built a highway overpass, they could not disrupt the high-speed rail line the roadway would straddle. Instead they built th...
Views: 443, Comments: 2
Last comment 09/02/2014 by phoenix911

3 Ways to Increase the Life Span of Your Hydraulic Equipment

01/11/2014 by CR4 Guest Author
Like it or not, hydraulic systems are part of modern-day life. You probably rely on hydraulics for your power brakes and power steering. Hydraulic sys...
Views: 706, Comments: 3
Last comment 02/24/2014 by Allen123
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Motors Blog

70 blog entries, 1267 comments (0 Viewing)

Amorphous Iron: The Right Stuff for Motors?

06/17/2014 by IHS GlobalSpec eNewsletter
Engineers should know a couple of things about amorphous iron: it's not hard to come by and there are good reasons for using it in motors, according t...
Views: 568, Comments: 0

Motor Quartet Makes Sand Art

02/09/2014 by IHS GlobalSpec eNewsletter
This video shows how four stepper motors work together to produce eye-catching sand art. The accompanying article describes the drawing machine that u...
Views: 504, Comments: 1
Last comment 02/10/2014 by geraldpaxton

The Evolution of Tugboats

02/08/2014 by CR4 Guest Author
Tugboats have a rugged, old world charm that attracts a brand of enthusiasm few other boats can. They are one of the sea's most hardworking, yet humbl...
Views: 774, Comments: 3
Last comment 07/07/2014 by lyn
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Motion Control Components

100 blog entries, 931 comments (0 Viewing)

A New Approach for Controlling Condition Monitoring

06/02/2014 by IHS GlobalSpec eNewsletter
The prevalence of around-the-clock condition monitoring is skyrocketing as sensing technologies become smarter, easier to implement, and more affo...
Views: 453, Comments: 0

The Swift Switch to Single-cable Servo

02/28/2014 by IHS GlobalSpec eNewsletter
The dualistic world of analog and digital feedback is fading fast. Digital signals are beginning to take precedence for communication between servo dr...
Views: 476, Comments: 1
Last comment 02/28/2014 by BIN95
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Other Blog Entries of Interest

GEA Co-Sponsors Technical Conference

03/27/2013 posted in GEA's Global HVAC Technology Blog
by larhere
We are pleased to be one of the sponsors of the 2013 ASHRAE Region VI Technical Conference being held May 1 and 2 in our hometown of La Crosse, WI. T...
Pathfinder Tags: GEA hvac industry HVAC technologies
Views: 154, Comments: 0

World's Tallest Building (A Prefab) - Update From China

03/20/2013 posted in GEA's Global HVAC Technology Blog
by larhere
We have been following this ambitious undertaking of building the world's tallest building, the 220 floor "Sky City", in an incredibly short three mo...
Pathfinder Tags: buildings china hvac fabricated buildings Prefab Buildings
Views: 858, Comments: 10
Last comment 07/22/2014 by RandallAvery

Supply Chain Insights - an Industry Veteran's View

03/13/2013 posted in GEA's Global HVAC Technology Blog
by larhere
In my thirty plus years in Strategic Supply Chain I have come to appreciate the constant evolution in our business. I'd like to share with you today...
Pathfinder Tags: global sourcing HVAC
Views: 230, Comments: 1
Last comment 03/14/2013 by JNB

Customer Centric Concepts – Unlocking the Secrets

03/06/2013 posted in GEA's Global HVAC Technology Blog
by larhere
The term Customer Centric Concepts came from our 25 years of experience developing and maintaining account relationships with Trane's National Account...
Pathfinder Tags: Customer Centric Concepts Customer Satisfaction HVAC Partners
Views: 223, Comments: 11
Last comment 03/12/2013 by Yusef1

HVAC Materials – An Evolution

02/27/2013 posted in GEA's Global HVAC Technology Blog
by psikorsky
This week GEA's PJ Sikorsky answers questions about materials used in HVAC products over the years. 1. What has been the biggest change in materials...
Pathfinder Tags: Corrosion HVAC Metallurgist materials materials selection New Refrigerants
Views: 379, Comments: 1
Last comment 08/26/2013 by 129CBRider

Ozone Layer Healing, But...

02/15/2013 posted in GEA's Global HVAC Technology Blog
by larhere
According to the ozone sensors on Europe's MetOp weather satellite, the hole over Antarctica in 2012 was the smallest in the last 10 years. Since...
Pathfinder Tags: Antartic hole global warming ozone layer
Views: 452, Comments: 24
Last comment 12/12/2013 by truth is not a compromise