U.S. CitiesCity-Data Forum Index
Covid-19 Information Page
Go Back   City-Data Forum > General Forums > Automotive > Brand-specific forums > Jaguar
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
Reply Start New Thread
 
Old 10-05-2010, 10:19 AM
 
Location: Chicago
38,690 posts, read 91,040,936 times
Reputation: 29523

Advertisements

Quote:
Originally Posted by wheelsup View Post
This Jaguar isn't about MPG it's about performance. That is (I suppose) why they went with a higher powered power plant like a turbine engine. For practical purposes most of us don't need that and as such a more efficient, albeit lower powered, power plant would be in order.
It's about both. It's about demonstrating how an extreme performance car doesn't have to be a massive gas hog all the time. It's also a way of saying "if a car with these capabilities can get 35mpg, imagine the possibilities for a car with more modest capabilities."
Reply With Quote Quick reply to this message

 
Old 10-05-2010, 10:46 AM
 
33,239 posts, read 27,908,686 times
Reputation: 19736
Quote:
Originally Posted by wheelsup View Post
Well for one this isn't an original concept, Volvo pioneered it, pairing the turbine with an electric motor/battery pack almost 20 years ago.

Popular Science - Google Books

Chances are, the same problems that made it an issue back then are the same issues that exist today. Volvo recently has decided to go with a Plug-in diesel design capable of 120 MPG averaged.

Volvo Plans Plug-In Diesel Hybrid for 2012 - NYTimes.com
you must really hate turbines. 20 years is a long time, especially these days, in engine development, even turbines. it also seems like volvo used a large turbine back then as well, and it made less power. materials, and fuel control technologies have made big stride since then.

Quote:
Originally Posted by Drover View Post
It's about both. It's about demonstrating how an extreme performance car doesn't have to be a massive gas hog all the time. It's also a way of saying "if a car with these capabilities can get 35mpg, imagine the possibilities for a car with more modest capabilities."
true enough.
Reply With Quote Quick reply to this message
 
Old 10-05-2010, 01:54 PM
 
Location: Pikesville, MD
5,229 posts, read 12,291,150 times
Reputation: 4846
Quote:
Originally Posted by wheelsup View Post
That link re-stated what I said - not sure how I was "wrong". In fact I wasn't. Turbines aren't as efficient as recip power plants. It stated it in the article you quoted. The cost as well would be enormous.
Yes, the link stated the efficiensies were slightly less, but then stated that the tiny packaging, thus overall weight reduction, more than made up for it, as well as the ability to run on any reasonably flammable liquid. It also stated that develppment has been ongoing by a large number of companies, in exactly the feilds you said they weren't working in (buses and locomotives). AND it showed how small they were. And they are already using them in quiet applications, showing you to be wrong about the noise, as well.

If fact the only thing you were right about was the spelling. Conceptually you've been completely wrong since the get go.
Reply With Quote Quick reply to this message
 
Old 10-05-2010, 03:01 PM
 
Location: Chicago
38,690 posts, read 91,040,936 times
Reputation: 29523
In addition to the weight savings of the power plant itself, you also have weight savings and reduced parasitic losses from smaller or potentially even nonexistent cooling and lubrication systems.
Reply With Quote Quick reply to this message
 
Old 10-06-2010, 05:44 PM
 
12,872 posts, read 22,662,255 times
Reputation: 13042
Quote:
Originally Posted by Drover View Post
It's about both. It's about demonstrating how an extreme performance car doesn't have to be a massive gas hog all the time. It's also a way of saying "if a car with these capabilities can get 35mpg, imagine the possibilities for a car with more modest capabilities."
Throwing a turbine on a Bonanza or Baron (aircraft) makes it perform better but doesn't mean it is the most efficient (in terms of MPG) way of powering it.
Reply With Quote Quick reply to this message
 
Old 10-06-2010, 06:04 PM
 
Location: Chicago
38,690 posts, read 91,040,936 times
Reputation: 29523
Quote:
Originally Posted by wheelsup View Post
Throwing a turbine on a Bonanza or Baron (aircraft) makes it perform better but doesn't mean it is the most efficient (in terms of MPG) way of powering it.
But it may well be the most efficient way to build a streetable car that can run the 1/4 in the mid-10s and still weigh less than 3000lbs. Compare to the Bugatti Veyron that is similarly capable but bloated up to nearly 4,000lbs by the time they built a conventional engine capable of developing the necessary power and the systems needed to feed it air, cool it, cool the oil, cool the transmission fluid, et cetera. And of course the fuel economy is dismal even when cruising at legal highway speeds.

You may be right, it may be that a conventional piston engine is a more efficient powerplant for a series hybrid. But it's also possible that you're wrong. We can't know for sure until someone tries it, and I'm not sure why you're so hostile to the idea.
Reply With Quote Quick reply to this message
 
Old 10-07-2010, 09:20 PM
 
Location: Lafayette, Louisiana
14,089 posts, read 24,223,274 times
Reputation: 7998
Report: Jaguar May Build Production C-X75 Supercar - Wide Open Throttle - Motor Trend Magazine
Jaguar is looking to put this vehicle into production.
Reply With Quote Quick reply to this message
 
Old 10-08-2010, 06:37 AM
 
4,247 posts, read 10,785,690 times
Reputation: 3128
If the turbines don't do anything but charge the batteries then what's the point of them? Is it just to knock out a 10 second quarter mile?
Reply With Quote Quick reply to this message
 
Old 10-08-2010, 12:23 PM
 
Location: Pikesville, MD
5,229 posts, read 12,291,150 times
Reputation: 4846
Quote:
Originally Posted by danieloneil01 View Post
If the turbines don't do anything but charge the batteries then what's the point of them? Is it just to knock out a 10 second quarter mile?
Ummm...

Electric cars run until the batteries run out. Then you have to charge them. With an onboard range extending generator, you can actually keep going until your fuel runs out liek a regular car. The idea, however, is to use less fuel overall.

The point of using turbines vs a regular gas engine (as the new Volt is doing) is to use up VASTLY less space and carry less weight to do the onboard charging.

But yes, the point of a car like this is to be able to run supercar performance with an electric car, to show that EVS aren't just golf carts, and that performance EVs don't have to have a useable range of 40 miles before you have to charge them overnight.
Reply With Quote Quick reply to this message
 
Old 10-08-2010, 01:06 PM
 
Location: Chicago
38,690 posts, read 91,040,936 times
Reputation: 29523
Quote:
Originally Posted by danieloneil01 View Post
If the turbines don't do anything but charge the batteries then what's the point of them? Is it just to knock out a 10 second quarter mile?
The point of them is to charge the batteries. What other point do they need?
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Automotive > Brand-specific forums > Jaguar
Similar Threads
Follow City-Data.com founder on our Forum or

All times are GMT -6.

© 2005-2020, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top