hello, this is not your typical textbook question with a textbook answer. im loo

Question

hello, this is not your typical textbook question with a textbook answer.

im looking for someone who can help me figure out a problem i want to solve involving an experimental fuel system

i will give BIG points to the person that sovles this problem with clear, accurate reasonable math.

SINCE IM GIVING SUCH A BIG REWARD FOR A CORRECT ANSWER I WILL KEEP THIS QUESTION UP FOR SEVERAL DAYS AND WILL GIVE NEARLY ALL MY CHEGG POINTS 11000 FOR A CLEAR PRECISE CORRECT ANSWER!

consider air and fuel going into an engine.

i want to raise the intake charge (air and fuel) to a specific temperature.

I am experiementing using different fuels, i want to raise the air and fuel being delivered to the engine to a specific temperature (CURRENTLY UNDEFINED, but in the range of room temperature as the low, and maximum temperature being 500 degrees Farenhieght to 1200 degrees farenhieght)

I NEED AN EQUATION THAT ALLOWS ME TO PLUG IN THE SPECIFIC HEAT OF AIR, AND THESE LISTED DIFFERENT FUELS AND KNOW A WATTAGE RATING (FOR A HEATING ELEMENT) THAT WILL PROVIDE THE CORRECT POWER FOR RAISING THE AIR AND FUEL TO A SPECIFIC TEMPERATURE. i realize for certain temperature ranges the latent heat of vaporization must be used...

my initial guess is:

[((specific heat of air) X (quantity of air) X (temperature increase) ) + ((specific heat of fuel) X (amount of fuel) X (temperature increase)) ] X (some conversion factor) = wattage of heating element

quantiy of air needs to be a CUBIC FEET PER MINUTE (CFM) FIGURE

TEMPERATURE NEEDS TO BE IN FARENHIEGHT

SPECIFIC HEAT NEEDS TO HAVE A CITATION IF POSSIBLE PLEASE

AMOUNT OF FUEL NEEDS TO BE A FLOW RATE IN GALLONS PER HOUR

CONVERSION FACTOR NEEDS TO SHOW DERIVATION MATH TO AQUIRE NUMBER

HEATING ELEMENT ASSUMES 100% EFFICIENCY POWER FACTOR OF 1

LIST ALL OTHER ASSUMPTIONS PLEASE

this equation is for the purpose of adding an electronic heating element to heat a mixture of air and fuel to a higher temperature before feeding it into an engine. all i need is the specified units to plug in to the right equation so i can run some numbers. this math is priceless to me and i am doing special experiements, but i need a nice ballpark figure on how much electrical heating is neccisary to raise air and atomized fuel to a higher temperature. im working with a large v8 (460 cubic inch) and around 1000 rpm-6000 rpm, at 6000 revolutions per minute it will consume less than 900 cfm

the substances im interested in knowing specific heats for are:

(and close figures will suffice)

1 gasoline

2 ethanol

3 kerosene

4 diesel

5 used motor oil

6 standard deep frying veggie oil (canola works)

7 used automatic transmission fluid

8 regular dry air

9 WATER

10 crude oil

again please, i am working on an experiment and points/time/money are no object i just need a good equation to plug in numbers so i can figure out how much electrical wattage i need to build the right fuel and air heater.

THANKS A MILLION!!!!!

if you need me to clarify anything dont hesitate to post contact info i will monitor this very closely and i will help in anyway i can! i really need to figure this out!

Explanation / Answer

For a start, proceed like this:

1) Fix up the flow rate of (fuel+air)

2) Mark down the temperature difference. i.e. final - initial

3) Using specific heat capacities, calculate the amount of heat required to raise the temperature. In this step, you will also have to consider the latent heat of vaporization if fuel is changing its state from liquid to gas.

4) In 3rd step, take a safety factor of 1.1 or 1.2. (if you already have some standards, we can use that)

5) Once it's finalized, we can make the calculations to arrive at a formula. That won't be much difficult.

Let me know what you think about it. We can proceed if you are satisfied with the logic.

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