DPF's the end of diesel cars in cities?

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Originally Posted by trout1105

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 [thumbsupbig]

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The most abundant element in the known universe. Honda ( FCX Clarity {Honda confused the issue by naming some of their hybrids as Clarity } ) and Hyundai are well down this path. California has mandated Hydrogen filling points. It is an absolute no brainer for mass transit. It's emissions at a vehicular level? H2O and O2.

Hyundai ix35 Fuel Cell Electric Vehicle | Hyundai Australia

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Originally Posted by trout1105

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 [thumbsupbig]

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Hydrogen in cars as a fuel is stored at very high pressures,something like 10000 PSI.

This ,i believe, is the main issue.

Hydrogen has storage issues.

In fact, finding a solution to the hydrogen storage problem is considered by many to be the foremost challenge for the hydrogen economy.

Issues include operating pressure and temperature; the life span of the storage material (stability); the requirements for hydrogen purity imposed by the fuel cell; the reversibility of hydrogen uptake and release; the refueling conditions of rate and time; the hydrogen delivery pressure; overall safety, toxicity, and system-efficiency and cost. No material available today comes close to meeting all the requirements for onboard storage of hydrogen for fueling a fuel cell/electric vehicle.

Hydrogen Basics - Storage

A local story is a bloke in Deniliquin made a Hydrogen car a few years ago , made its own hydrogen from water & drove to Sydney on one Litre . The car & the documentation was confiscated ( Men in black ?)

the only issue was it generated so much static that he had to earth it before getting out !

hmm

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Originally Posted by scarry

Hydrogen in cars as a fuel is stored at very high pressures,something like 10000 PSI.

This ,i believe, is the main issue.

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If we can put a sports car in orbit around Mars we shouldn't have any problems solving the storage issue for Hydrogen [thumbsupbig]

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Originally Posted by trout1105

If we can put a sports car in orbit around Mars we shouldn't have any problems solving the storage issue for Hydrogen [thumbsupbig]

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Umm,what could possibly go wrong??[biggrin]

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Originally Posted by goingbush

A local story is a bloke in Deniliquin made a Hydrogen car a few years ago , made its own hydrogen from water & drove to Sydney on one Litre . The car & the documentation was confiscated ( Men in black ?)

the only issue was it generated so much static that he had to earth it before getting out !

hmm

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Seriously doubt that ever happened...

If you’ve ever seen a Hydrogen plant you aren’t fitting that in a car!!! And Browns Gas certainly wouldn’t be enough..

Not to mention - energy to convert has losses, you can’t get more out than you put in..

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Originally Posted by scarry

Hydrogen in cars as a fuel is stored at very high pressures,something like 10000 PSI.

This ,i believe, is the main issue.

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With apologies to bee utey "Yep, looks like 100% renewable is too huge a problem, so why bother trying, eh?"

Honda, Hyundai, BMW and maybe others have, or will, overcome this issue.

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Originally Posted by johntins

With apologies to bee utey "Yep, looks like 100% renewable is too huge a problem, so why bother trying, eh?"

Honda, Hyundai, BMW and maybe others have, or will, overcome this issue.

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If there is money in it,they will keep trying....

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Originally Posted by johntins

With apologies to bee utey "Yep, looks like 100% renewable is too huge a problem, so why bother trying, eh?"

Honda, Hyundai, BMW and maybe others have, or will, overcome this issue.

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There is certainly a lot of research happening around hydrogen fuelled cars and trucks. The main benefits are that it's clean, quick to refuel and hydrogen packs a lot of energy per unit mass. Except that you need heavy containers to hold a decent amount of the stuff.

The main problem remains the energy used to produce and store the hydrogen in meaningful amounts for long distance travel. Basically you need roughly three times as much energy input compared to a battery system. You just can't get around this, it's due to the fundamental properties of hydrogen. So three times as many nuke plants, three times as many wind turbines and three times as many solar panels. That may raise some eyebrows.

So IMHO hydrogen will be of most use in high value long distance transport such as rockets, trains, interstate trucks and possibly planes. Not so much for short to medium range cars and delivery vehicles which can refuel anywhere there's a decent power connection.