Re: The effect of cold fuel on engine power

On 23 Oct 2007 13:59:26 +0300, Phil Carmody
<thefatphil_demunged@xxxxxxxxxxx> wrote:

Bob Dubery <megapode@xxxxxxxxx> writes:
But then why is there a regulation about fuel temperature? Is it
because cooling the fuel might allow a team to gain a small advantage
in the pit stops?

The maximum fuel delivered per second is a "safety" regulation.
If there was no rule set on cooling, how could they ensure that around
13L/sec is kept to ?

And why, when they penned the regulation, didn't they simply state
something along the lines of "the temperature of the fuel as delivered
to the car must be between 20C and 25C" or some other absolute bounds
rather than relative bounds?

Because it is a simple "rule". Whether the fuel is cool inside the
tank or inside the filling rig both of which will provide a similarly
minuscule amount of extra power or fuel per second respectively, is in
fact made irrelevant by having the rule as simple as that.
No cooling of fuel past the prescribed bounds. Rule done.

--

Regards, Frank
.

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