HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
REGISTER   |   LOGIN   |   HELP
<<  <  Page 2/4  >  >>
notarboca
User Rank
Gold
Re: Natural gas depletion
notarboca   6/30/2013 1:58:55 AM
NO RATINGS
William, I agree, since I worked with a fellow who had used farm waste and silage to produce a stable amount of methane to power lights in his barn.  It can be done.

Charles Murray
User Rank
Blogger
Re: travel distances
Charles Murray   6/28/2013 7:08:14 PM
NO RATINGS
You're absolutely right, gwilki. Energy density of CNG is lower than gasoline, so cars generally can't carry enough on board for long range. Most of the smaller vehicles that have used CNG have gotten a range of about 200-220 miles.

gwilki
User Rank
Iron
travel distances
gwilki   6/28/2013 5:46:05 PM
NO RATINGS
Interesting in the slideshow are the couple of times that it states that the tanks in the bi-fuel vehicles have the equivalent capacity of 8- 20 gallons of gas. Depending on the mileage that can be attained on natural gas, that does not give the potential for long trips. That may not cause grief for those vehicles that also carry gasoline and can be transferred over with the flip of a switch, but for any vehicle that is soley CNG powered, it pretty much restricts them to in-city use.


I believe that Vancouver has been using CNG busses for quite a while, but I would guess that they carry much more gas.


Note that all these vehicles are talking about using CNG, not methane.

Charles Murray
User Rank
Blogger
Worth the extra cost?
Charles Murray   6/27/2013 6:53:02 PM
NO RATINGS
One thing not mentioned in the comments (admittedly, after only a hasty look at them), is the issue of extra initial cost. Ford estimated a $9,000 to $12,000 bump.

Rob Spiegel
User Rank
Blogger
Re: Where's the natural gas car boom?
Rob Spiegel   6/27/2013 6:48:48 PM
If that's the case, Chuck, it sounds like natural gas vehicles will not contribute much to carbon reduction. 

Charles Murray
User Rank
Blogger
Re: Natural Gas Vehicles
Charles Murray   6/27/2013 6:47:09 PM
NO RATINGS
That's a really good point, Al. There are only about 1,300 natural gas refueling stations in the U.S., and about half of those are privately owned, which means that most of us can't use them. Of course, we can put refueling stations in our garages, but the refuel time is atrociously slow in home stations -- about half a gallong equivalent per hour.  

William K.
User Rank
Platinum
Natural gas depletion
William K.   6/27/2013 5:20:19 PM
NO RATINGS
What is interesting is that there are already folks producing natural gas in the form of methane by using farmyard waste. And at least one researcher claims to be able to produce methane from garbage and other municiple waste products. Instant recycling. It could be quite useful.

NadineJ
User Rank
Platinum
Re: Where's the natural gas car boom?
NadineJ   6/27/2013 3:48:20 PM
NO RATINGS
From my limited understanding of how natural gas is extracted, it's just as bad, if not worse, than oil.  Is this a good thing?

But, in my fascination with natural gas, I am planning a trip to Turkmenistan to see the Gates to Hell next year.

ratkinsonjr
User Rank
Gold
Re: What's old is new again
ratkinsonjr   6/27/2013 1:14:32 PM
NO RATINGS
Another advantage to testing the concept on city buses is that it would greatly reduce the cost to expand urban transit systems. Boston, like many large cities, has streetcar and "trackless trolley" lines, which are simply buses powered by overhead trolley power lines via a pantograph pickup. Extending the line requires extending the power lines as well. With fuel cells, the buses can disconnect from the lines and run anywhere there is a road, greatly reducing the cost to install and run new service. Expanding service could be as simple as striping the road for a dedicated bus lane, or adding a dedicated bus lane in a highway median, without the added expense of tracks and/or power infrastructure. Boston's "Silver Line" was originally designed as a low-cost alternative to a new streetcar/subway line that uses trackless trolley buses in a dedicated busway & tunnel system. Using fuel-cell powered buses would significantly reduce the cost of additional routes that must be added as part of court-ordered "mitigation" measures designed to reduce air pollution as part of the funding for the "Big Dig" highway project.

Pubudu
User Rank
Platinum
Re: Get Ready for Natural Gas Vehicles
Pubudu   6/27/2013 1:03:37 PM
NO RATINGS
True Battar, so the focus should be on the other power sources like sola and electricity than the natural gas. 

<<  <  Page 2/4  >  >>


Partner Zone
Latest Analysis
The National Highway Traffic Safety Administrationís recent backup camera mandate could open the door to more vehicle innovations, including better graphical displays, 360-degree camera views, and the increased use of Ethernet.
With support from National Instruments, a group of dedicated students from Connally High School in Austin, where more than 50% of the students are at risk of not graduating, have created a successful robotics team that is competing in the FIRST World Championships.
Solar Impulse 2 -- a 100% solar-powered airplane -- has been completed. It features several advanced materials, some developed specifically for next year's attempted around-the-world flight.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
Lumus and eyeSight have partnered to create consumer-grade devices that offer all the prime functions of smart glasses without the bulk.
More:Blogs|News
Design News Webinar Series
3/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
2/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
12/18/2013 Available On Demand
11/20/2013 Available On Demand
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Apr 21 - 25, Creating & Testing Your First RTOS Application Using MQX
SEMESTERS: 1  |  2  |  3  |  4  |  5


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: April 29 - Day 1
Sponsored by maxon precision motors
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service