Sunday, 25 May 2008

Three Laws of Car Fuel Economy

Okay, the price of car fuel is going through the roof. What are we going to do about it? Drive less?--That's a very good way to stop global warming. Not a good way to be at Aunt Martha's picnic this weekend.

We could get a super-efficient car (like mine--gets 65 mpg) or get a super-efficient engine (like the one under development--see the full theory at http://www.ernsblog.com/), but you would probably miss the picnic. How about some ways to really cut the cost of gasoline TODAY?

That brings me to a new set of rules. You might say they are Rogers' Laws of Car Fuel Economy. These were mostly known before. They may not actually work for everybody's car, depending on how the car was engineered. A well-engineered car should follow the rules to a "T."

Here are the rules. By following them, you should be able to cut your fuel costs by 20% or more, starting today!

Three Laws of Car Fuel Economy
Ernest Rogers May, 2008

1. In highway driving, for each 5 mph that you slow down, your mileage will increase by 10%.
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2. For any trip with a present average speed of (mph) and fuel consumption of (mpg), if you speed up to save time, the extra fuel you will use can be estimated by—

Extra gallons = (mph /mpg) x (minutes saved /35)

In words, if you divide your normal speed by your usual mpg, then multiply by minutes you want to save (by speeding up) and divide by 35, that’s the amount of extra fuel you can expect to use. It is a handy rule to see the fuel cost for speeding to save time.
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3. Very efficient drivers use pedals less and can get 30% better mileage than inefficient drivers.

Tuesday, 18 September 2007

New engine cycle is 60% efficient

Analysis of a new engine design is complete! Here are some facts about it:


1. Utilizes a new thermodynamic cycle

2. Will run on most fuels interchangeably with very low emissions

3. Initial design is a compact engine, 130 hp

4. Over 60% efficient over most of its operating range

5. Which means it can help to stop global warming!


We are now looking at ways to fund construction of the small prototype engine. Any suggestions or offers of assistance are welcome. I may be reached at Ernsdesk@aol.com


The engine design is built around a new "thermodynamic cycle." This is a simplified model of how the engine works, which ignores all the messy details of a real engine such as friction, heat loss, and inertia. The cycle is described as a sequence of operations on a captive ideal gas. The new engine cycle is a combination of two old cycles, the Atkinson (or Miller) cycle and the Diesel cycle: the Atkinson-Diesel cycle.

Oh, no, you can't use this ideal cycle formula to design the exact engine and determine its efficiency, but it gives direction to the analysis. A separate program is used for the actual engine design.

I wanted to post the complete description of the cycle and derivation of the cycle efficiency here, but the equations didn't come over in the document. Send me an email if you would like a copy of the complete Atkinson-Diesel cycle description.

Thursday, 21 April 2005

LATEST MILEAGE NEWS

LATEST MILEAGE NEWS

Mileage of the Beetle and drag reducer have been significantly increased by lowering rolling resistance of the car's tires. Currently, mileage is close to 65 miles per gallon at 65 miles per hour.

This car is now about as good as it gets. Further steps available to reach even higher fuel economy are:

1. Adding an electric drive (e.g., hybrid conversion)
2. Redesign the car body for lowest drag
3. Incorporate an improved engine.

I am beginning to work on all of these. These steps are much harder than the past modifications to the Beetle. I hope to be able to report on progress later this year.

Ernie Rogers

Monday, 8 November 2004

CAN WE BUILD MORE EFFICIENT ENGINES?

Stop global warming


Yes, I think we can. The present internal combustion engine was mostly developed in a time when fuel cost and efficiency were not imperatives. We need to go back to the early days of engine devleopment and reassess the way designers handled branches in the design road. We may have overlooked some better choices way back when the discovery of oil in Oklahoma and Texas seemed to say that there would be cheap gasoline forever.

One of these early branches in the road was a choice between four-stroke cycle engines and two-stroke cycle engines for automobiles. At the time, we used carburetors to feed fuel to the cylinders. In this context, the four-stroke engine is a far better choice. (More efficient and less polluting.)

But, the trend today is toward injection of fuel directly into the cylinders. With this modern option, the two-stroke cycle actually provides a far more efficient engine. Here are some other choices that need to be reviewed:

1. Engines are only designed for either gasoline or diesel, and nothing else.
2. Compression ratios are lower than one would choose for best efficiency.
3. Engine design principles are not based on a need to reduce weight.

Some people are looking at the exciting possibilities still left to be explored. A possible outcome may be radically new engine types in the near future.

Ernie Rogers

Saturday, 11 September 2004

MPG Update

I changed fuel in the last few weeks. Currently, I am using Philips diesel from the North Salt Lake Refinery, used in this intermountain region. I seem to have better mileage with this fuel, now getting 62 mpg.



This is a point for reflection-- what further change in driving or car properties should I make to increase my mileage a little more? Any suggestions?



Ernie Rogers

Sunday, 22 August 2004

Ernie's Alaskan Adventure

This summer, my grandson, Kai Rogers, and I drove to Alaska--Salt Lake City to Anchorage, 3,000 miles. Of course, we went in the thrifty, fuel-sipping Beetle TDI diesel.



Total fuel for the trip to Alaska, 3,000 miles, was 52 gallons. Not bad --- about 57 miles per gallon. On the return trip we did a little better, getting 58 miles per gallon.



I had hoped to do better. Here in the western states, my summer mileage is consistently about 60 miles per gallon. We surmise that the reason is the difference in climate. It would be necessary to use a little different diesel fuel blend in northern Canada and Alaska to insure that the fuel doesn't solidify if the weather were to suddenly turn cold. Cold-weather fuel contains a little less energy than what we use down around Utah in the summer time.



You can follow the link to my car's web page to see some pictures and hear more about the trip.



Ernie

Monday, 24 May 2004

What In The World is This Animal In Bloomfield Township?




After this weekend’s picture of the alleged dead Chupacabra we have this set of photos.  What I am seeing is a fox that has shed its outer coat.  Notice the thinness of the tail and how the lack of fur lets the ears look larger.  It may even be a coyote but fox seems more likely.

 

Has the warm summer around the northern Hemisphere brought on a wave of shedding?  Possibly, since we are seeing more than one case.  The full molt argues against a simple skin disease which would show partial shedding.

 

One of these corpses that are in hand needs to be properly identified and we have plenty of biologists with the skills.

 

The Chupacabra appears to be a rare unrecognized vampire bat having the same mass as one of these foxes.  We actually have two unusual animals scaring the chickens.

 

What In The World is This Animal In Bloomfield Township

 

Updated: Friday, 06 Aug 2010, 10:36 PM EDT

Published : Friday, 06 Aug 2010, 10:19 PM EDT


((MyFoxDetroit.com Staff)) - Do you know what this is?  Joel from Bloomfield Township says this animal started showing up in his backyard yesterday.
He took a few photos and sent them to us to help identify the animal.  Please scroll through them.  We've sent them off to Veterinarian but until we hear back, what's your call?
Add your ideas in the comment box below.  We'll post the answers from the experts once we get them.  See if you're right.
UPDATE: Some quick research has our staff thinking it's a mangy fox or a coyote. Still, what do you think?

From James we have 

This animal is showing up all over the States... many of the nudnicks are calling it el chupacabra, okay... My thought is that there is more genetic splicing and cloning being done then we will ever know. For these things to be showing up all over the States, I don't know, just a bit too coincidental if you ask me.

If you think that there aren't Dr Frankenstein's out there as well as fully funded Government labs making new and trying to revive old animals you living with your head in the sand.

Every time they get a dead one they send it off for DNA testing and we never ever here anything about it again... it's also why when archeologists find anomalous artifacts the objects seem to vanish.... things like a 8000 year old human femur bone that is four feet long... or modern type tools embedded in coal a mile under the earth...fossilized modern human footprints that are right next to dinosaur footprints...

If you find these thing fascinating as I do, pick up "Forbidden Archeology" by Michael Cremo. It's a HUGE book and it will blow your mind to what they are hiding from us so not to upset the fake made up history that we have been fed and brainwashed to believe. Let's hold them to the DNA testing of these things, if it's a fox or a coyote I want to know.





And for a comparison, here is a fully furred fox with his bushy tail