The Anonymous Widower

Bosch Likely To Slash Platinum In New Fuel Cells

The title of this post, is the same as that of this article on Automotive News Europe.

This is the first paragraph.

Bosch expects platinum to play only a minor role in its new fuel cells, with the supplier only needing a tenth of the metal used in current fuel cell vehicles, Reuters estimates.

The amount will be similar to that in the average catalytic converter, which must surely be a good thing.

Bosch are in a joint venture with Swedish fuel cell maker, Powercell

 

May 13, 2019 Posted by | Transport | , , , , | Leave a comment

How Much Energy Can Extracted From a Kilogram Of Hydrogen?

This article on EnergyH, is entitled About Hydrogen Energy.

This is said.

Hydrogen has an energy density of 39 kWh/kg, which means that 1 kg of hydrogen contains 130 times more energy than 1kg of batteries. So lots of energy can be stored with hydrogen in only a small volume.

But as in most things in life, you can’t have it all as fuel cells are not 100 %  efficient.

Wikipedia has a sub-section which gives the in-practice efficiency of a fuel cell, where this is said.

In a fuel-cell vehicle the tank-to-wheel efficiency is greater than 45% at low loads and shows average values of about 36% when a driving cycle like the NEDC (New European Driving Cycle) is used as test procedure. The comparable NEDC value for a Diesel vehicle is 22%. In 2008 Honda released a demonstration fuel cell electric vehicle (the Honda FCX Clarity) with fuel stack claiming a 60% tank-to-wheel efficiency.

For the purpose of this exercise, I’ll assume a conservative forty percent.

This means that a kilogram of hydrogen would generate 16 kWh

Raise that efficiency to fifty percent and 19 kWh would be generated.

Conclusion

Fuel cell efficiency will be key.

May 9, 2019 Posted by | Transport, World | , | 1 Comment