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Thread: DPF's the end of diesel cars in cities?

  1. 22nd February 2018, 04:06 PM #201
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    Quote Originally Posted by trout1105 View Post
    It is usually the Mining companies and the Military that use and develop the new technology and I haven't heard of any widespread use of electric cars/trucks in these areas yet.
    Like you said "technology will be streaks ahead in the years to come" So why would anyone be buying the "Beta cord" offerings at the moment when the "VHS" units won't be too far down the track
    *sigh* I suppose the end of Internal combustion will come sooner than we think


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  2. 22nd February 2018, 04:12 PM #202
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    Hi Gav.
    Sorry for the late response. I do know your background and don't question your credibility.
    However the best Steam Turbine Generator I could find was 37% efficient: Chemical energy in/Electrical energy out.
    I know there are Turbines that are as Much as 99% efficient but that rating starts where the stem enters the Turbine.
    A modern Internal Combustion Engine is typically 35% efficient, and I have heard (purely anecdotally) that is about to increase to 45%.
    Please enlighten me if I'm wrong. It's a long time since I was in the game as you know.
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  3. 22nd February 2018, 04:35 PM #203
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    Isn't a gas turbine a different thing from a steam turbine?

    Gas turbines seem to have achieved greater efficiency.

    Latest generation gas turbine engines has achieved an efficiency of 46% in simple cycle and 61% when used in combined cycle.[8]
    Engine efficiency - Wikipedia

    The record of 64 percent efficiency in a combined-cycle installation beats out the previous official record of 62.22 percent, set by GE in 2016.
    https://www.technologyreview.com/the...g-natural-gas/

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  4. 22nd February 2018, 04:47 PM #204
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    Instead of diesel with DPF what about compression ignition petrol Mazda Will Bring the First Compression Ignition Gasoline Engine to Market | WIRED


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  5. 22nd February 2018, 04:48 PM #205
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    Quote Originally Posted by Tombie View Post
    You residential T.P or FIFO?
    residential
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  6. 22nd February 2018, 04:56 PM #206
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    Quote Originally Posted by vnx205 View Post
    Isn't a gas turbine a different thing from a steam turbine?

    Gas turbines seem to have achieved greater efficiency.

    Latest generation gas turbine engines has achieved an efficiency of 46% in simple cycle and 61% when used in combined cycle.[8]
    Engine efficiency - Wikipedia

    The record of 64 percent efficiency in a combined-cycle installation beats out the previous official record of 62.22 percent, set by GE in 2016.
    https://www.technologyreview.com/the...g-natural-gas/
    Yes they are different, but both similar in the way they operate. A gas turbine is physically smaller for the same power output and dosent have the need for boilers to create steam. In saying that many baseload gas power stations will have heat recovery from the gas turbine exhaust to run boilers to power steam turbines as well (combined cycle)
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  7. 22nd February 2018, 05:06 PM #207
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    Quote Originally Posted by Homestar View Post
    Did you not read my other post regarding this? Emmisions drop by around 2/3 when using grid power to charge a car rather than use fossil fuels.

    This comment by the nay sayers has been well and truly put to bed.
    And electricity generation can get greener (solar, wind, hydro), unlike fossil fuels. And fossil fuels are just a long tail solar fuel anyway....DPF's the end of diesel cars in cities?☺
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  8. 22nd February 2018, 06:44 PM #208
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    Quote Originally Posted by Tombie View Post
    MartnH

    Please keep the political undertones out DPF's the end of diesel cars in cities?
    Okay okay...
    Bombing for world peace
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  9. 22nd February 2018, 06:48 PM #209
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    Quote Originally Posted by martnH View Post
    Okay okay...
    Bombing for world peace
    To think, I got pinged for a joke that mentioned watermelons...
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  10. 22nd February 2018, 07:02 PM #210
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    Why have electric cars at all with all the pollution that the old dead batteries would eventually produce?
    Why not Hydrogen powered cars?
    Use solar power to crack the hydrogen from water, Then burn the hydrogen in cars which will then produce water and No need for heavy batteries and lengthy recharges also the resource is renewed.
    People have looked at doing this But none of them have had the backing that the battery car mob has.
    Using Hydrogen as a fuel makes absolute sense as 2/3 of the world is covered in the base ingredient and as it is used it is also renewed, That's a Win Win situation
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