Comments on: University Team Helps Nissan Unveil its Green Future

By: viliyana89

viliyana89 — Tue, 04 Aug 2009 11:58:38 +0000

I hope they will create environmental and eco-friendly car. The CO2 emissions are increasing much, and the big usage of automobiles last years, means that it will not stop increasing. We should reduce it, with such cars, like this. I hope that car builders will pay more attention to the earth and will care about it much more.

By: Sham Bakar

Sham Bakar — Wed, 31 Dec 2008 07:33:16 +0000

Hi, got a Nissan Almera, anybody can guide me how can I convert into hydrogen powered car. Save the oil and save the world. Would love the idea. To answer the question, Do you think hydrogen is a viable fuel alternative? These will not only be the alternative, there is the future. All cars should be runing on water HHO etc.

By: David Rushton

David Rushton — Thu, 25 Dec 2008 18:39:27 +0000

Howard – serious question – have you done the math concerning oil? What is the energy efficiency of drilling for oil in Saudi Arabia (should include the energy cost of all the dry wells) – transporting to the U.S. on a tanker – refining at a U.S. oil refinery – trucking to my local 7/11, putting it into a I.C.E. powered car. What about Shale Oil from Canada? I suspect that a home based Hydrogen plant (using grid power, and hydrolysis) fueling an electric vehicle powered with a fuel cell would compare fairly favorably – and with much less pollution.

David.

By: Brian Ditchek

Brian Ditchek — Fri, 24 Oct 2008 13:18:04 +0000

A detailed study of hydrogen fueled vehicles has been done by William Korchinski and published on reason.com. His analysis indicates that cracking methane rather than electrolysis is the likely source of hydrogen fuel. The byproduct of this reaction is carbon dioxide, which means hydrogen fueled cars will still contribute to global warming. His study concludes this technology is not the solution for the environment.

By: Jackson Kyle

Jackson Kyle — Tue, 21 Oct 2008 13:10:59 +0000

Well Howard, the idea isn’t that its an inefficient process to obtain the hydrogen, but rather that the process used can be driven by renewable energy. If you have a solar cell or wind turbine powerinh the electrolysis on site, then the toll on the environment is essentially negatable. And in regards to your comment stating that “elecrolysis is unlikely to dramatically improve in efficiency,” Korean researchers have come up with a new, more efficient way to obtain hydrogen.

By: Howard Wilkinson

Howard Wilkinson — Wed, 08 Oct 2008 14:49:05 +0000

Hydrogen power is a farce… an absolute farce. In the production of hydrogen, the net maximum yield yet obtained runs around 60%… joules of energy in versus joules out… or whatever measure you want to use. This result is achieved using expensive materials like platinum in plates and solutions. The hydrogen is then compressed… eating up considerably more energy, and burned in an internal combustion engine where the net yield is about 20%. Not knowing the losses from the compression process, we can look at the combined efficiency of the production and combustion (in an engine) processes and the net yield is approximately 12%… factor in the energy of compression and the net will be well below 10% that is a pathetic yield, and as electrolysis is unlikely to dramatically improve in efficiency, and internal combustions have “hit the wall” on efficiency, this clearly is NOT the way to go. It is NOT a viable motor fuel for this reason.