HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Blog
Slideshow: Newark element14s Energy-Harvesting Challenge
9/5/2013

< Previous   Image 2 of 6      Next >

The carbon monoxide detector designed by Wojchiech Gelmunda is tested. The test was conducted with a carbon monoxide environment recreated by capturing smoke inside a jar. (Source: Newark element14)
The carbon monoxide detector designed by Wojchiech Gelmunda is tested. The test was conducted with a carbon monoxide environment recreated by capturing smoke inside a jar.
(Source: Newark element14)

< Previous   Image 2 of 6      Next >

Return to Article

View Comments: Newest First|Oldest First|Threaded View
Cabe Atwell
User Rank
Blogger
Re: energy harvesting
Cabe Atwell   10/23/2013 6:08:51 PM
NO RATINGS
It's always fascinating what people can come up with when designing projects. The hand-crank back-up for the remote is priceless.

vimalkumarp
User Rank
Gold
Re: energy harvesting
vimalkumarp   9/11/2013 9:30:18 AM
NO RATINGS
@Elizabeth: surely I will share the details for your kind perusal and suggestions.

Elizabeth M
User Rank
Blogger
Re: energy harvesting
Elizabeth M   9/11/2013 9:24:02 AM
NO RATINGS
Yes, vimalkumarp, I think we exchanged messages before in comments about your PhD work. It's fascinating. You're definitely doing research in a really promising and potentially world-changing area of technology. I think I said it before, but I will definitely be interested in seeing what you publish about your work. Good luck!

vimalkumarp
User Rank
Gold
Re: energy harvesting
vimalkumarp   9/9/2013 5:38:26 AM
NO RATINGS
My PhD is on energy harvesting for wireless sensors used in structural health monitorign of aircrafts. i am also passionate about energy harvesting.

Elizabeth M
User Rank
Blogger
Re: energy harvesting
Elizabeth M   9/9/2013 4:09:44 AM
NO RATINGS
You're very welcome, vimalkumarp. I find this very interesting technology to write about and it's fascinating to see the different methods clever people are designing to re-channel existing energy so it's put to good use.

Elizabeth M
User Rank
Blogger
Re: Not all 'Harvesting' is "Harvesting"
Elizabeth M   9/9/2013 4:03:07 AM
NO RATINGS
Points well taken, Ralphy Boy, thanks for your comments and your suggested workaround. Obviously none of these designs are meant to be perfect and usually there is some tweaking to prototypes before they would be put into practice or commercial development. But as you point out, it's good for people to be thinking in this direction and inventing devices toward this end.

Elizabeth M
User Rank
Blogger
Re: what about when the water is not used of a while?
Elizabeth M   9/9/2013 4:01:12 AM
NO RATINGS
Yes, I guess there are considerations like that to think about when it comes to different standards and mechanisms in different parts of the world, naperlou. I'm not sure about the storage system. Perhaps there could be some kind of modification to the design to accommodate different hot-water accessibility scenarios. These are all prototypes, after all. :)

Ralphy Boy
User Rank
Platinum
Not all 'Harvesting' is "Harvesting"
Ralphy Boy   9/6/2013 4:04:03 PM
Right off I'm going to say... Elizabeth don't get me wrong... I'm glad to see people are thinking and trying to save energy. And as an exercise these are pretty good.

The reality is though that some of these examples take heat that was created to do something... then convert it into electricity to do a new something else... before it could do its intended job.

Originally, the heat used to power these devices was created with losses based on the level of inefficiency of a system. They used electricity, or gas, or oil, or coal to create the heat, and... it was turned into 'heat' because that is what the job required.

Then... the heat was parasitically intercepted before it could do that work, and converted again, with losses from another imperfect system.

I would not call his harvesting... It is outright theft!

I would call it harvesting if the energy was captured from a source that was not already in a stream to do some other work... Or if it was waste heat taken after the work was done (For example the Australian homebrew monitoring kit powered by excess heat generated during the fermentation process. Great effort that one)!

Had the faucet attachment or pot lid modifications bled off a little hot water to do something that required hot water no one would act like this was a 'harvesting' event...

If on the other hand they were capturing 'waste heat' then it would be a different story.

I'll suggest a quick fix to my complaint for one of these... Instead of stealing heat from the faucet, the heat should be taken from the drain pipe... I would call that harvesting.

At that point the water has done it's job and is taking heat with it; heat that can be saved from being wasted.

vimalkumarp
User Rank
Gold
energy harvesting
vimalkumarp   9/6/2013 6:07:30 AM
NO RATINGS
Thanks a lot Elizabeth for sharing the info. energy harvesting holds lot of promise for the energy problems of the world.

naperlou
User Rank
Blogger
what about when the water is not used of a while?
naperlou   9/5/2013 9:04:47 AM
NO RATINGS
Elizabeth, the harvesting of energy from hot water seems interesting, but this implies that the device has to be near a hot water pipe that is hot.  In systems in the US, with a large tank hot water heater, this would limit the system to be near the heater.  In Europe there are on-demand, tankless systems in use.  If you were away for a while there would be no hot water in the pipes.  I assume that there is some storage mechanism. 

Partner Zone
More Blogs
Automation technology advances matched with expanded fracking and the growing urbanization of Asia, South America, and the Middle East, are fueling a boom in the automation industry.
In this engineering disaster, the Therac-25 radiation machine would go haywire, sending massive, sometimes fatal, radiation overdoses to patients.
A recent example of a major CAE revamp is MSC Apex, released last month by MSC Software Corp. In a discussion with Design News, MSC executives noted that its next-generation platform is designed to substantially reduce CAE modeling and process time, in some cases from weeks down to hours.
The Thames Deckway would run for eight miles close to the rivers edge, rising and falling slightly with the tidal cycle. It will generate its own energy from a series of devices that will line the pathway and use a combination of sources to make the path self-sustaining.
Here's a breakdown of the 2014 engineering salaries by discipline. We've included entry-level salaries, mean average salaries, and top 10% salaries.
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
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: 10/28-10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/28-10/30 2:00 PM
Sponsored by Gates Corporation
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