HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Amclaussen
User Rank
Platinum
Re: Pump Efficiency
Amclaussen   8/6/2013 5:58:36 PM
NO RATINGS
You are welcome. In fact, I'm in the process of developing an intelligent control for centrifugal pumps, that will try to reduce droplet size degradation in emulsion handling processes intended to separate oily water. In that particular case, it is not energy savings or efficiency per se the most important goal, but to make the separation equipment smaller, more efficient or both.

apresher
User Rank
Blogger
Pump Efficiency
apresher   8/6/2013 5:21:55 PM
NO RATINGS
Amclaussen, What you're saying is so true and points out how much can be done to increase the intelligence and efficiency of these systems.  Thanks for your input.

Amclaussen
User Rank
Platinum
Yet, most pumps still are run at fixed speed...
Amclaussen   8/6/2013 4:17:09 PM
The sad reality, is that most process pumps in the world are still run at fixed speed, and being centrifugal, they are supposed to be "controlled" by throttling the fluid with a valve; wasting energy and causing the pump to run away from B.E.P. or Best Efficiency Point, which causes a lot of maladies and wears down the pump too soon.

Therefore, a strong effort should be made to get engineers aware of this inefficient operation mode, and make them understand that with present day Variable Frequency Drive prices vs. energy and increased maintenance prices, there is no excuse to continue running pumps together with pressure dropping valves.  An intelligent process control that takes advantage of the pump characteristic curve is in order.  Unfortunately, most pumps are not sold as an integrated Pump-VSD-Process Control system, and some fail to reach the potentially high savings and desirable overall life cycle costs, mainly because sometimes the hydraulics of the installation aren't properly considered and some problems arise.  Proper and through process design and verification, together with true and tested system components is required to avoid those problems before they appear. Amclaussen.

apresher
User Rank
Blogger
Servo-variable Pump Drives
apresher   8/5/2013 5:53:08 PM
NO RATINGS
Naperlou, Thanks for your comments. The interesting thing to me with this is the mixing of motion technologies (hydraulics and electric servos) with both each contributing their strengths to the application.  Plus the ability to bury some of the complexity of the hydraulic control. We'll be seeing more in this area moving ahead.

naperlou
User Rank
Blogger
More efficient motors
naperlou   8/5/2013 9:25:24 AM
NO RATINGS
Al, this is another great example of the appliction of control technology to improve efficiency.  I expect that the older systems that used fixed speeds did so because the control technology was not as developed and this was the easiest way to get reliable operation. 



Partner Zone
Latest Analysis
A Silicon Valley company has made the biggest splash yet in the high-performance end of the electric car market, announcing an EV that zips from 0 to 60 mph in 3.4 seconds and costs $529,000.
The biggest robot swarm to date is made of 1,000 Kilobots, which can follow simple rules to autonomously assemble into predetermined shapes. Hardware and software are open-source.
The Smart Emergency Response System capitalizes on the latest advancements in cyber-physical systems to connect autonomous aircraft and ground vehicles, rescue dogs, robots, and a high-performance computing mission control center into a realistic vision.
Tolomatic ERD actuator provides high-tolerance, high-force capabilities at a low cost to innovative medical therapy machine.
The diesel engine, long popular on European roads, is now piquing the interest of American automakers.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 8 - 12, Get Ready for the New Internet: IPv6
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: September 30 - October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service