HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Charles Murray
User Rank
Blogger
Microns???
Charles Murray   4/23/2014 6:18:26 PM
NO RATINGS
100 microns X 100 microns X 5 microns??? Yikes! I realize this isn't a traditional IC engine, but the size is still mind-boggling. A few years agom, we wrote about the Conley Stinger engine, which had a 0.9-inch stroke. I thought that was small.

http://www.designnews.com/document.asp?doc_id=251002

 

William K.
User Rank
Platinum
Re: Efficiency
William K.   4/16/2014 10:32:36 PM
NO RATINGS
I also wonedr about the efficiency, and in addition, why anyone would consider salt water to be a fuel, since by definition a fuel delivers energy by a chemical reation, and is converted into a substance with less chemical potential energy. So if the salt water is recovered at the end of a cycle it did not release any chemical energy. So it could be called a working fluid but it should not be called a fuel. The input power is the electricity used to electrolyse the saltwater into whatever is produced and then re-combined. So really the invention is an electric motor, not a fuel consuming engine.

And one more question is about how useful work would be captured from this device, and would it still function if work were taken out.

Ratsky
User Rank
Platinum
Re: Efficiency
Ratsky   4/16/2014 10:33:33 AM
NO RATINGS
I agree, but would suggest that it be labeled with the common term "electric motor" since it is in fact turning electric energy into mechanical motion.  I guess that term wouldn't have as much success in gaining PR, though.

Ratsky
User Rank
Platinum
Saltwater???
Ratsky   4/16/2014 10:30:17 AM
NO RATINGS
If I recall my ancient electrochemical knowledge correctly, electrolysis of saltwater does NOT yield hydrogen and oxygen, but rather sodium hydroxide (lye) and gaseous chlorine.  This is the basis of the entire chloralkalai industry!  I'm not surprised they haven't figured out what really happens inside this tiny device, since they don't seem to understand this very basic (grade-school science in my day) fact.

AJ2X
User Rank
Silver
Re: Efficiency
AJ2X   4/16/2014 8:57:57 AM
NO RATINGS
This does not seem to be an internal combustion engine in the usually-accepted sense.  Rather, it appears to be an electric engine (since that's the only fuel consumed) in which it is conjectured that the working fluid, after disassociating, spontaneously combusts.  It doesn't seem to me that heat or heat efficiency enters into it at all.  It's an interesting little motor but not an internal combustion engine.

tekochip
User Rank
Platinum
Efficiency
tekochip   4/16/2014 8:03:44 AM
NO RATINGS
Sounds interesting.  So, the fuel is not consumed because the gas is reabsorbed?  What sort of efficiency do they see?




Partner Zone
Latest Analysis
Take a peek into the world of a test engineer – and then tell us about yourself! We want to know what part each of our readers plays in the wonderful umbrella known as design engineering.
On Sunday, when more than a hundred million Americans turn on their televisions to watch the Super Bowl, they might consider first giving thanks to a polymer known as polybutadiene. .
Design News is pleased to present the finalists in the Design Tools - Hardware & Software category of our 2016 Golden Mousetrap Awards.
The series now can interface with a wider array of EtherNet/IP-compliant hardware across many industrial sectors, including factory automation systems, plastic injection molding apparatus, and materials-handling equipment.
Gadget freaks at the Pacific Design & Manufacturing Show in Anaheim next week are in for a special treat: a chance to participate in a slot car competition on the show floor.
More:Blogs|News
Design News Webinar Series
1/28/2016 11:00 a.m. California / 2:00 p.m. New York
12/8/2015 11:00 a.m. California / 2:00 p.m. New York
2/18/2016 11:00 AM PT | 2:00 PM ET
2/24/2016 11:00 AM PT | 2:00 PM ET
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jan 11 - 15, Designing ARM Devices Using Segger Tools
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9


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.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service