HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 15/24  >  >>
FrankWye
User Rank
Iron
Re: Consumers not Accepting GREEN Marketing at Face Value
FrankWye   4/20/2012 5:32:43 PM
NO RATINGS
Who is Pat Robertson? So you say that National Geographic misquoted the 2005 data from NASA?

Greg M. Jung
User Rank
Platinum
Re: Why Hybrids aren't selling now
Greg M. Jung   4/20/2012 5:31:31 PM
NO RATINGS
I really liked the Livermore graph.  It really packs a tremendous amount of information into easily understandable information.  I was actually surprised to see that petroleum was not larger.  Also, I was surprised that the renewable energy sources were that significant.

One thing to remember with growing our fuels is the unintended effects that it may produce.  For example, growing more sugar cane in Brazil will put tremendous pressure to clear more rainforest land (for more fields), thus hurting biodiversity in the process.  Also, growing more fuel in the states will have some impact on food prices also, since some of this land will now be used for fuel production.

I still like the idea of growing fuel, but again, we really need to carefully think through all of the unintended effects of switching over to these and other types of sources.

FrankWye
User Rank
Iron
Re: Hybrid Loyalty
FrankWye   4/20/2012 5:28:34 PM
NO RATINGS
When Rome occupied Isreal, Romans made the rules.

There has never been a country of Palestine.

So you admit that Saddam supported suicide bomber families and sorry, there were Iraquis found to be helping Abu Nidal or was it Abu Said in Philippines.

jijoh123
User Rank
Iron
Re: Hybrid Loyalty
jijoh123   4/20/2012 5:08:56 PM
NO RATINGS
Its totally fair; even if you completely ignore any possible disposal fee; the ROI is still greater than 16 years on the hybrid vs its gas countepart (Honda Civic LX vs Civic Hybrid Base). Do the math.

Kevin
User Rank
Platinum
Re: Why Hybrids aren't selling now
Kevin   4/20/2012 5:04:01 PM
NO RATINGS
Greg,

I don't have totally clean data to send you.  My opinions have been formed by reading MANY articles over years of time.  However, I was able to google around and find some relevant articles for you.  Most biofuel articles tend to be polarized - written by either zealots (pro-biofuel) or curmudgeons (anti-change / anti-biofuel).  Here's some that are pretty balanced:

http://extension.oregonstate.edu/catalog/pdf/sr/sr1078.pdf

 

http://www-wds.worldbank.org/servlet/WDSContentServer/WDSP/IB/2010/08/30/000158349_20100830090558/Rendered/PDF/WPS5406.pdf

 

http://scholarsarchive.library.oregonstate.edu/xmlui/bitstream/handle/1957/25614/JaegerWilliam.AgResourcesEconomics.BiofuelEconomicsSetting.pdf?sequence=1

 

http://www.iisd.org/gsi/sites/default/files/bf_awc_uk.pdf

http://www.energy.iastate.edu/renewable/ammonia/index.htm

For reference: 

116.3 K BTU = 1 gal gasoline = 34 KWh

1 million BTU = 8.6 gal gasoline

1 gal gasoline =  3.875 liters is energy equiv. to  1.5 gal Ethanol = 5.68  liters Ethanol

My take is that most of these biofuels cost more than gasoline, but not by <that> much.  Perhaps a 20%-50% premium, and for some processes, maybe 2X-3X.  Most of the world already pays about this much for their fuel....we are very spoiled in the USA. 

Note that the Switchgrass-sourced ethanol is still fairly expensive, but the ethanol processes are still being optimized.  However, the FEEDSTOCK is lower cost than most alternatives and requires much less intensive "farming" investment and the "carbon footprint" is dramatically lower than the others.  Also - look how GREAT the results are with Brazil's sugar-cane ethanol program!

I'm not normally one who likes to see heavy government subsidies or directives, but energy is an area that I think is different.  As long as we can just pump-out (or mine) fossil fuels that took mother nature millions of years to create (and burn them up in only a couple hundred years) - these will be cheaper.  Once fossil fuels get scarce and run out - alternate fuels will not be an option, and 1.5X or 2.0X cost vs. today's gasoline will seem just fine.

  Since it may take decades of focused development to develop the technology and scale needed, and the fact that the "free market" probably won't respond until we actually start running out of oil and have an emergency on our hands (too late!) - I think the government MUST prime the pump by promoting alternative energy NOW.  Hopefully in a smart and efficient way (cynics can snicker...I'm one of them sometimes too).  Our future depends on it....and even if it isn't "easy", we must persist or face dire consequences.

As I mentioned before - I really think that farming-based biofuels are not the best choice.  A non-carbon, mechanized synthesis process that takes solar energy from all sources (photovoltaic, wind, maybe even direct solar synthesis) and creates a renewable fuel (ammonia or urea) makes much more sense, I think.  I've also read that for a given land area - much more energy can be harvested with PV than with any biofuel.  That's a factor too - as there is limited land area in many areas to use for solar energy conversion.

Lastly - here's a very enlightening link to see the big picture where our energy comes from:

https://flowcharts.llnl.gov/

Kevin

Rigby5
User Rank
Platinum
Re: Hybrid Loyalty
Rigby5   4/20/2012 4:50:54 PM
NO RATINGS
FrankWye : You punish recreational waste of oil by having it pay to subsidize agricultural use, and by subsidizing alternative recreational means, like hybrids.

Rigby5
User Rank
Platinum
Re: Hybrid Loyalty
Rigby5   4/20/2012 4:48:07 PM
NO RATINGS
All hybrids can easily be recharged with small modifications that are inexpensive.  And most currently sold can be.

Rigby5
User Rank
Platinum
Re: Consumers not Accepting GREEN Marketing at Face Value
Rigby5   4/20/2012 4:46:11 PM
NO RATINGS
FrankWye : Wrong, Martian polar CO2 deposits growth and shrinkage have no correlation to solar input.  "observed regional changes in south polar ice cover are almost certainly due to a regional climate transition, not a global phenomenon, and are demonstrably unrelated to external forcing." 

http://en.wikipedia.org/wiki/Mars_global_warming

The claims of Pat Robertson are nonsense.  It is not as if we have not been monitoring solar output carefully for the last 200 years.

Rigby5
User Rank
Platinum
Re: Hybrid Loyalty
Rigby5   4/20/2012 4:31:51 PM
NO RATINGS
FrankWye :  No, the greater area and population was alway Palestinian.  Jordan was just part of Palestine in the past.  And of couse they did not want Palestinians because it would threaten their new aquistion the British and French gave them.

Yes, Israel was created by Europeans and the US as a means of getting rid of their Jews, but that is illegal.  The internationally recognized Treaty of San Remo in 1920 had already given Palestine independence, under Arab rule.  The UN did not have the authority to abrogate this pre-existing WWI agreement.

And no, Saddam was not paying anyone to blow up anything.  What he did was to make small payments to victims of collective retribution, when Israel would confiscate the property of relatives of suspected suicide bombers.  That is completely different.  He supported no terrorism at all. And he had no connection at all to any bombing in Israel or the Philippines.

But yes, it is mostly Saudi Wahhabists behind terrorism.  It is extreme Islamic fundamentalists.  Saddam had the most secular of all Mideast governments, except for Turkey. Zero connection to ANY terrorism.  If you read contrary, it is as much lies as the WMD claims.

FrankWye
User Rank
Iron
Re: Hybrid Loyalty
FrankWye   4/20/2012 4:21:32 PM
NO RATINGS
How do you punish recreational use?

<<  <  Page 15/24  >  >>


Partner Zone
Latest Analysis
A bold, gold, open-air coupe may not be the ticket to automotive nirvana for every consumer, but Lexus’ LF-C2 concept car certainly turned heads at the recent Los Angeles Auto Show. What’s more, it may provide a glimpse of the luxury automaker’s future.
Perhaps you didn't know that there are a variety of classes, both live and archived, offered via the Design News Continuing Education Center (CEC) sponsored by Digi-Key? The best part – they are free!
Engineer comic Don McMillan explains the fun engineers have with team-building exercises. Can you relate?
The complexity of diesel engines means optimizing their performance requires a large amount of experimentation. Computational fluid dynamics (CFD) is a very useful and intuitive tool in this, and cold flow analysis using CFD is an ideal approach to study the flow characteristics without going into the details of chemical reactions occurring during the combustion.
The damage to Sony from the cyber attack seems to have been heightened by failure to follow two basic security rules.
More:Blogs|News
Design News Webinar Series
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 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.
Jan 12 - 16, Programmable Logic - How do they do that?
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


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