Re: Increases horsepower and Save fuel
- From: Dan_Thomas_nospam@xxxxxxxxx
- Date: Fri, 20 Jul 2007 07:33:36 -0700
On Jul 19, 11:57 pm, "TE Chea" <4...@xxxxxxxxx> wrote:
| The best ways to increase mileage are really ordinary
No, beside correction of design flaws ( I corrected >10 on 2
cars, increased torque & mpg, cut noise, all by ~ 60 & 80 % ),
a few new ways are possible & easy for manufacturers
1) In cold climate, air intake can have UV light tubes to create
ozonewww.emanator.demon.co.uk/bigclive/ozone.htm
: fuel will burn hotter in O3 & produce more torque.
You'd better cite some research showing that you can create O3 with
a UV light, and that O3 improves combustion.
2) Small & light air compressors can be fitted on each axle to
( during braking ) use car's momentum to compress air, to
be released into air intake ( during acceleration ) as cool &
forceful air, to incr torque. When idle, engines too can
compress air.
Adding compressors and their drive systems and tanksonly adds
weight, and more weight requires more energy to move it. An idling
engine could compress air, at the expense of more fuel flow. Where's
the advantage in all this?
3) For warm & hot climates, cylinder*heads' exhaust gas ports
should have a thin film of ceramic ( ideally porcelain ) to
reduce * ' absorption of heat from exhaust gas, if not * &
air intake ( ideal tmprtre is just 40ºC for petrol ) will be too
hot for engines to be efficient : ignition coils' output too
drop with heat.
This has been done. It doesn't contribute greatly. Fuel/air
flow into the head is so rapid that it sin't much of an issue.
4) Alternators* in cold climate <10ºC need not have impellers
to cool *, but in warm & hot climates, * must have impellers
( like Nissan Sunny's ) otherwise [i] too few amperes will be
available to produce big sparks ( for high torque & low noise
) & charge battery even in very slow idling [ii] * will send
too much heat into engine ( will get too hot ), unless all
diodes locate away from *.www.aa1car.com/library/charging_checks.htm
Oh, dear. I had no idea that a warm alternator couldn't provide the
three or four amps to produce the hottest spark that would ever be
necessary for ignition.
The alternator is a very effficient machine and produces little
waste heat, so many alternators have no fans. Those that do absorb a
tiny fraction of a horsepower. Even the generation of 60 amps at 14
volts requires 840 watts of power, or 1.126 HP. When are we ever going
to use 60 amps? And at 1.126 Hp and a fuel burn of .4 lb/hp/hr we'd
use only .075 gallons in that hour. (one U.S. gallon of gasoline is 6
lb.) You'd better find a better way to save fuel.
| There is only so much energy in a gallon of fuel
You're outdated, oxidisers like nitrous oxide & O3 can produce
more heat & torque.www.turborick.com/gsxr1127/gasoline.html
You are adding oxidizers, not fuel, and those oxidizers only
increase the concentration of O2 in the air from the normal 14% so
that MORE fuel can be fed to the engine so that more HP can be
extracted from that engine, not more HP from a gallon of fuel. A
molecule of fuel requires a molecule of oxygen to burn,and adding
oxidizers won't make that molecule of fuel go any farther. Oxidizers
also shorten the life of the engine; that costs more money than fuel,
and the energy that factories use to make new engines and parts to fix
blown engines doen't save overall fuel consumption nationwide.
Increasing compression can increase power from a gallon of fuel,
but only at the risk of detonation, which cuts power output and
damages the engine.
| 40 to 50% of the fuel's heat energy leaves with the exhaust.
| Try finding a way to use that
Beside turbo chargers, I read some trucks use thermo couples
( peltiers ) water cooled, to produce electricity from this heat.www.hi-z..com/websit03.htm
Thermocouples generate electricity on the order of microamps. Not
useful except to measure exhaust gas temperatures. We have them in our
aircraft and I bet that's what they're doing in the trucks.
Turbos are used, again, to increase HP from a given engine by
increasing the amount of oxygen fed to it, which requires more fuel to
combine with that oxygen. Oxygen by itself does not burn and produce
power.
None of your ideas are new, and none are going to save fuel.
Until we come up with an engine that doesn't waste so much heat, we
won't see big improvements in fuel mileage. I am 54 years old and
remember the Popular Mechanics and Mechanix Illustrated magazines that
had, in about every third issue, some new engine that would get
phenomenal mileage, produce 5 Hp per pound, and cost next to nothing.
After dozens of these engines, we're still using the same four-
cylinder reciprocating layout that powered the Model T. And hundreds
of people have tried to make it better but it still sends much of its
heat energy out of the exhaust.
Dan
Aircraft Maintenance Engineer
.
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