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Sustainable Engineering

384 threads, 7500 comments (1 Viewing)
 

Wind Turbine Blades

11/21/2009 by miik999
I have recently designed a set of blades that self feather when the wind gets too strong.I have them attached to the hub in such a way that the presur...
Pathfinder Tags: feathering blades wind turbine blades
Views: 112, Comments: 3
Last comment 11/22/2009 by RHABE
 

What Does That Sentence in Bold Mean?

11/19/2009 by wingman1985
Newer wind turbine technology can use the wind not only to produce wind energy, but also to enhance the operating safety of the turbine. The contr...
Views: 241, Comments: 19
Last comment 11/22/2009 by tcmtech
 

Water Wheel Blade Design

11/09/2009 by Guest
Hello, Pondering building a floating water wheel for our river. Electricity production. Question is: Has anyone tried using...
Views: 320, Comments: 15
Last comment 11/19/2009 by Tornado
 

Why are all the geothermal pumps electrical?

11/06/2009 by notanengineer
I moved into a house a year ago that is heated by a 7-ton geothermal heat pump. It works very well and, though expensive to install, is cheap to opera...
Views: 467, Comments: 27
Last comment 11/19/2009 by Icarus
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Section Blogs

Alternative & Renewable Energy Blog

120 blog entries, 1436 comments (1 Viewing)

New Hope for Steam Power: Testing the Efficiency

11/18/2009 by Old_School
Having proven that my engine design was practical (and actually worked), the next step was to test its power output in order to determine engine effic...
Pathfinder Tags: Alternative Energy green Home made homemade ...
Views: 126, Comments: 1
Last comment 11/19/2009 by machine head

How to Stall Energy Sprawl

11/11/2009 The drive to increase renewable energy production may collide with imperatives to conserve pristine lands. In the U.S. alone, renewable energy systems...
Views: 5, Comments: 0
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Environmental Technology

48 blog entries, 398 comments (0 Viewing)

Does Green Make You Mean?

10/25/2009 Buying green products might be good for the environment but could also undermine your ethics. In a behavioral study, University of Toronto researchers...
Views: 310, Comments: 11
Last comment 10/28/2009 by s.udhayamarthandan
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Other Blog Entries of Interest

Afrigadget: Solving Everyday Problems with African Ingenuity

09/24/2009 posted in Industrial Interface Research & Design Blog
by help4engineers
It's amazing to see how people can make incredible improvements to everything around them often with very limited resources. One blog that consis...
Pathfinder Tags: Africa Blog charity design donations ...
Views: 290, Comments: 3
Last comment 09/25/2009 by s.udhayamarthandan

The Missing Carbon Problem (Part 4)

03/10/2009 posted in Rockaholic Adventures
by Shawn
Uncertainty in the carbon cycle is greater than computer-generated models account for. Large generalizations have left out many smaller processes t...
Pathfinder Tags: climate change IPCC kyoto protocol Missing Carbon missing sink
Views: 570, Comments: 10
Last comment 09/29/2009 by Ca-Vin

Are Wind Turbines Hazardous to Your Health?

03/05/2009 posted in The Y Files
by Moose
"I get a lot of slander and abuse from the wind salesmen. Their favorites are saying that my abundantly references and footnoted articles, like th...
Pathfinder Tags: clean power green energy health hazards wind farms wind power ...
Views: 925, Comments: 74
Last comment 09/30/2009 by Ca-Vin

The Missing Carbon Problem (Part 3)

02/24/2009 posted in Rockaholic Adventures
by Shawn
Oceanic sinks and feedbacks to climate change are as variable and hard to measure as their terrestrial counter parts. The oceans are in equilibrium...

The Missing Carbon Problem (Part 2)

02/10/2009 posted in Rockaholic Adventures
by Shawn
Hypothetically, there is a terrestrial sink for carbon dioxide (CO2). The real issue lies deeper than understanding the processes of photosynthesis...
Pathfinder Tags: Missing Carbon negative feedback positive feedback terrestrial sink
Views: 272, Comments: 3
Last comment 02/10/2009 by april05