Quote:
Originally Posted by freebeard
The delta will be down in the noise. Is this the best we can do for argumentation?
The weak link in the chain is PV cell efficiency. Exceed the Shockley-Quiesser limit and the equations all stand on their heads. |
1) The 'delta' is ' available wheel power and mass.'
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Here's a truth table:
a) City cycle speeds are prescribed.
b) Wheel rpms are dependent on road speeds of the cycle.
c) Available wheel power at a specified wheel rpm is dependent upon torque.
d) To increase wheel power, available torque must be increased, as rpms are inflexibly prescribed and cannot be increased ( power is a function of torque and rpm ).
e) Torque is dependent upon momentum.
f) Momentum is dependent upon inertia.
g) Inertia is dependent upon mass.
h) If a specified small BEV is to become more efficient in the prescribed urban test cycle, it must experience a mass increase of unspecified magnitude, as per the authors comments, sentence #1, page 26 of the thesis.