freezing and lighting kerosene?

What happens when you freeze kerosene and light it with a match will it blow or nothins

Question by Robinson ruiz   |  last reply

What effects does running a gasoline engine with propane have? Answered

I know that propane will run a gasoline engine, but besides the hoses and seals drying out is there any massive loss in output or any other kind of wear on the inner workings?

Question by luckymoonboy1   |  last reply

what are some fun easy cheap chemical reactions

I was wondering about the things that i can do with easy to obtain chemicals like gasoline. im in high school and dont have a job its a small town and i dont have anything to do after school im not stupid and i dont want to bite off more than i can chew so i want to know about easy things with household chemicals

Question by rasmoses16   |  last reply

3X Gasoline Engines Sniff Vapors and Burn Water

Sounds ridiculous doesn’t it? How can water possibly be turned into a useful fuel by just burning it? Sure we can use hydrolysis to separate water into its hydrogen and oxygen gases, and then burn the hydrogen gas as fuel, but that’s not what I’m talking about. Believe it or not, jet engines do it, they have used water to enhance engine thrust, so why not have IC-engines do the same thing? There’s a catch here, since only vapo-engines ( ) are capable of performing this trick successfully, they must first be introduced into the design mix. Since IC-vapo-engines burn very effectively they run hot, and water would be used as a better alternative than injecting extra wasteful fuel to cool down the engine as is done in today’s engine to prevent knocking. Why don’t we just inject water in today’s engines you ask?  Because they run so poorly already, that the water would extinguish the IC-combustion process. In technical jargon this is known as the ability for an engine to burn lean with an air-to-fuel ratio greater than ~15. Today’s engines can’t sustain a leaner combustion than ~22  without extinguishing themselves. By adding water droplets we further increase this ratio to unsustainable conditions. Unfortunately, this wasteful, richer burning keeps the engine running better by keeping the fuel cooler. In contrast, our vapo-engine is capable of burning unbelievably lean ratios of ~30+. Lean combustion means almost no pollutants and virtually green combustion exhaust products of only CO2 and water. No catalytic converters necessary here, as opposed to running today’s rich engines with their unavoidable polluting exhaust emissions and heavy reliance on catalytic converters. So the irony here is that since IC-engines already run ratty, let’s waste a little more fuel and run richer just to cool down the engine. This prevents engine knocking (the dieseling of an engine due to unwanted, poorly timed, premature combustion) which occurs from the pitiful amount of fuel that does vaporize and burn correctly. Sadly, engineers have cleverly learned to waste fuel for the sole purpose of keeping our IC-engines cool, above and beyond the engine’s normal water cooling system. It gets even better, as the richer the engine runs the more we need to rely on expensive catalytic converters to keep exhaust emissions in check!  Vapo-engines also require cooling, even more than today’s engines, but their advantage is the capability to burn very lean. So instead of ridiculously injecting extra fuel to cool them, like today’s engines, we inject water droplets mixed in with the injected fuel vapor. The water droplets perform three functions; 1) they reduce excess fuel consumption, 2) they cool the engine walls to prevent pre-ignition and knocking which provides better combustion, and 3) they enhance the fuel-vapor detonation force created on the piston from the expanding superheated steam which further helps engine performance. So in a way we are burning the water to generate steam power like a locomotive.   

Topic by RT-101   |  last reply

Why has nobody found a way to power a vehicle using magnetic energy? Answered

It seems like such a simple solution, yet nobody has attempted it yet. Why? The force put off by magnets is basically free energy, right?

Question by annchanted   |  last reply

I mistakenly put the gasoline i used for my weed wacker (Gas and oil) in my mower and it doesnt run very good now.

I have changed the spark plug a couple times and it is pretty dirty with carbon. I even tried carbuerator cleaner . It has no gas filter

Question by    |  last reply

Is it possible to run a small gasoline car 100% on hydrogen alone ? Answered

Theoretically you can, but did anyone really do this with success ? Anyone knows of a link that has all the details for such a project ? I need to know how big the hydrogen generator should be and how to safely connect the hydrogen supply to the motor, how to mix the hydrogen with oxygen and what ratio, is it better to mix with pure oxygen or just normal air or maybe hydroxy just works fine ?! How to prevent firebacks... too many little details to be discussed.. so anyone has any usefull info just throw it at us please to try to make a really efficient 100% hydrogen powered car.

Question by Nick_Zouein   |  last reply

The use of gas generators in the home.

Available pluses home gas generators: * Rate per se gas generator compared with the price affordable euro GASOLINE. * The price of fuel is lower than that of the generator on diesel or gasoline. Available Cons: * Gas ​​is considered the most volatile than diesel or gasoline. * Appeal from the gas and the installation of equipment for gas processing requests for special and separate permission. Our legislation prohibited the installation of systems and gas processing equipment in the absence of a suitable plan or agreement. * Most of all, on our market, there are gas generators made in China. * Gas ​​generators are made on the basis of a gasoline engine, the method of adjustment of fuel injection system and fuel carburation. In accordance with this resource from the generator corresponds to the resource gasoline engine. * Later, the acquisition of the gas generator of small capacity, the buyer is faced with a specific limitation on work: a maximum of 6 hours per day. The resource identified by the manufacturers of gas generators, with the first glance quite broad. However, do not understand the root cause of its increase. On average, the share of gasoline engine, out of which gas engines, floats in the range up to 2000 HOURS. This common resource for the euro generator. Imagine the Chinese gasoline engine, the resource is constant. Next, suppose that the resource oposlya changing gasoline engine to natural gas will not decrease. (Our real change of cars with fuel gas indicates a reduction of the resource engine, which originally was made for 1-octane gasoline, well, and subsequently applied for another). 1 of firms offering gas generators, a guarantee in 2000, machine hours, or one year, although with the limitation, at least 6 hours per day. The appointment of such a generator is not clear. As a source of constant power, he will not do, as backup - as well as the first blackout since most 6 hours (which happens often) determines the total loss of warranty. It is reasonable to imagine that the buyer, which turned off the light of day, will not sits all day in the absence of light, zhdya coming the next day. In general, in fact, a similar limitation on the work looks pretty amazing: It seems as clear that the miniature generator with cooling air is not able to operate around the clock. While that still causes inconvenience to cool the generator, for example, for 1 hour, and then resume his work? In solid power installed thermal disconnector, which simply will not allow too much power to warm up, and therefore, the decision on mode of operation.

Topic by saylar 

how is it possible that the general world of people move away from steam to gasoline?

I mean that with todays steam cars that you can refill with water anywhere and with water being super cheap and natrual source for fuel why would people move away from those kind of cars?

Question by neivadan   |  last reply

how to make flaming wings for photos, using spark plug, gasoline and pipe?

I wanted to create a fire effect using some type of combustible set up to simulate firey wings for various photographic projects. I thought maybe making a twin metal tube design out of copper with many little holes and a ignition tap with a gas reservoir. but have to think of how to ignite it safely, how much gas to use without being too dangerous and the proper expansion of the pilot holes. The ignition system should be something simple and reusable, probably a spark plug and battery system. anyone have any ideas or advice on how to do this? thanks.

Question by    |  last reply

How to step down 110V DC to 46V DC?

Little about the beast: This is a home build rectifier made of x6 KBPC3506 which comes out to total capable throughput  of 210Amp This THING connects to an outlet via thick power cable. I measured the output when plugged and it is 110V DC. So this got me thinking is there an easy way to step down 110V DC to like 46V or 60V? WHY? Well I have an electric e-bike and just as a fun project I wanted to see if it is possible to replace the battery with portable gasoline generator and then AC 110V from generator turn it to DC and step it down to a little more than 46V. Of course I will have little baggie at the back of the bike :-)

Question by Redion   |  last reply

TITLE- ALTERNATIVE FUELS can biodiesel and ethanol completely replace gasoline and diesel as alternative fuels?

What are the byproducts of combustion of ethanol and biodiesel? what are pros and cons of using biodiesel and ethanol as alternative fuels?

Question by sayaleechavan007   |  last reply

Turn a thunderbird into an electric?

Hey any ideas? It's a '96 with a v8 engine. Frankly, I'll be more impressed with an electric motor. I know it's not the ideal car to do this with, but I want to give it a try anyway.

Topic by firedragoon8605   |  last reply

has anyone successfully built a teslaturbine engine that runs on gasoline? any ideas? iim toying with the idea. Answered

My idea is to add injectors in a firring chamber . one air injector , one fuel injector , one spark plug.

Question by Burnr   |  last reply

Can Non-Hybrid Cars Get 100+ MPG Today?

  We're not talking about hybrids here; our topic is cars powered by the basic IC-engine that relies on gasoline and not electric motors. Today's gasoline engines are not designed to combust/burn gasoline efficiently. Even with the advent of using high pressure fuel injection techniques that are computer controlled, we still fall short of the mark. Partly because liquid gasoline can't burn, only gasoline vapors burn, and there lies our problem. The same goes for injecting the high pressure droplets of fine-mist liquid gasoline that enters the engine cylinder using our current nozzle ejector technology, it doesn't all burn at the same time! Engine designers assume that these droplets are instantly vaporized by the engine's hot cylinder walls, and then instantly explode/combust when ignited by the sparkplug. Not true, up to 2/3 of the fuel isn't vaporized and doesn't combust until later on in the cycle. The 1/3 that gets almost-instantly vaporized and burns will do so within the several thousandths of a second (Fig-1) it has before the piston moves down its 1/2-stroke (out of today's 4-stroke cycle) completing the engine power-portion of its cycle. This releases power and tremendous heat which indeed vaporizes the remaining ~2/3 of our fuel from its liquid droplet form, but too late. It essentially does so when the power stroke is almost over or the piston is just about ready to move into its up-stroke (2nd stroke of our four stroke cycle) phase. So, because of poor vapo-timing we have 2/3 of our fuel virtually wasted by exploding at near the bottom of the power stroke. This incorrect explosive timing, which happens to most of our fuel, imparts very little energy into the crankshaft because its effective "moment" (a product of explosive force and radial-component distance from crankshaft center) is insignificant by then. Various attempts at adjusting the combustion timing spark hasn't made a significant difference. Even though ~2/3 of the fuel is now exploding and providing a huge force, its small "influence" arm distance is rapidly diminishing to zero, and any huge downward force times near zero arm-length is still zero. Some clarification here, technically thermal-efficiency is not improved, pretty much all of the gasoline gets combusted today. That means the energy of the fuel is almost totally released, but not effectively used. The problem is the timing it takes to convert fuel-injected gasoline droplets into vapor to combust at the correct engine rotational time and extract that expended energy. If you did the math for any size engine rotating at say 3200 RPM, you would find that a 4-stroke engine can only extract that energy from combustion during one of the four strokes. And the time it takes to make that stroke happen is only about 9.4 thousandths of a second or 9.4 milisecs (msecs). Now picture the piston just below TDC, all its valves closed, under pressure and containing all the fuel and air it needs to combust. At this point our deadly cocktail has about half of the 9.4 or about 5 msecs to complete combust after the timed sparkplug ignites it. The half factor exists because the max portion of our power stroke (moment arm) occurs at the mid-stroke of the piston sliding down and turning the crankshaft. If all of our fuel isn't combusted by then, the moment-arm or distance from the piston-center to the crankshaft quickly reduces to zero. Again, only vapors combust within a healthy 2 msecs (Fig-1), while fuel droplets take a relatively long time (>5 msecs) to vaporize before it can combust. Unfortunately nature is stubborn and vaporizes ~2/3 of our injected fuel droplets only during roughly the second half of the power stroke. So this huge amount of energy gets wasted because even though the forces of combustion are huge, its moment arm is rapidly approaching zero. Infinity times zero is still zero! Engine designers/engineers have been plagued by this phenomenon ever since the creation of the 4-stroke gasoline or Otto cycle engine. We need to improve this intermittent combustion/explosion process by combusting all of our injected fuel at the correct timing sequence. This is accomplished by injecting only vaporous fuel which will produce ~3X the power we now get. Another way to state this is, for the same power that we now get from a gasoline engine, if we burned the fuel correctly, we would only need 1/3 the fuel consumption to get 3X the current MPG.

Topic by RT-101   |  last reply

Air sample analysis for the concentration of CO2/Carbon Dioxide? Answered

I'm working on a high school science fair project which concentrates on the CO2 emmissions of automobiles and anlyzes two methods of filtering CO2 from car exhaust. It's really a pretty simple project - except that i don't have a Carbon Dioxide monitor. Online they range from $200-800 and i've contacted the enviornmental department at a local university to see if they can help me. I'm still waiting on a reply but i'm wondering if any of you guys (or gals) have any ideas on how i can find the concentration of CO2 in car exhaust.

Question by Aaron Cole   |  last reply

FAST electric cars.....

Would you believe, electric cars that are winning against their gas guzzling cousins? ...drag racers are enabling small electric vehicles to beat gasoline-powered Corvettes and VipersCharles J. Murray, Senior Technical Editor -- Design News, May 25, 2009Drag racing Electric Cars

Topic by Goodhart   |  last reply

difference between marine and normal oil

I need to mix gasoline with 2-cycle oil for my 2-stroke chainsaw and i only have marine 2-cycle oil. is it ok if i use this or do i need to use regular 2-cycle oil?

Question by Sun Gear   |  last reply

Algae biofuel oil refining?

I have long been a fan of the idea of renewable energy from algae colonies, but I have yet to find any information on actually refining the oil produced with the algae.  I am well aware of how to remove the oil, however at that point it is just an organic crude.  Is their a process to refine it to a more diesel or gasoline-like state, or is it efficient enough to run an engine on the crude.  I am currently growing a reasonable algae colony and would appreciate assistance in doing something with the algae after it is grown.  

Question by   |  last reply

Jet Engine Problems? Answered

I have been building a mini Jet Engine.  I have a VERY STRONG electric fan for the compressor.  Outer shell is made of sheet metal.  The fuel I have been trying to use is gasoline.  The intake is about 2.5 inches across and about 3 inches in it begins to close up to about 0.6 inch diameter where the air is compressed and mixed with fuel before being burnt.  The problem is that its starts but it explodes.  Is it too much fuel, to much compression from the compressor, to small of a diameter for the combustion chamber and exhaust or something else completely?  Haven't done much with jet before so any help would be appreciated. Thanks

Question by Electric Spectre1   |  last reply

What should I use for a hovercraft fan?

I have all the necessary building materials (wood, plastic tarp, foam, etc...) as well as a 22 hp engine and a weed whacker engine (both gasoline). I'm having trouble figuring out what i need in terms of a lifting fan. I've determined that i need something that can provide at least 4000cfm. I've looked at industrial shop fans 20+ inches in diameter which seem to provide enough airflow to work, but I've never seen them used in my research. Can anyone help?

Question by Transience   |  last reply

about button....

I have code on that will turn on led on my arduino but how can i turn it if i want to add button? how can i add button here in my code? #include int ledPin = 13; int buttonPin = 2;  // the number of the pushbutton pin      // the number of the LED pin int buttonState = 0;  // variables will change: LiquidCrystal lcd(12, 11, 5, 4, 3, 2); void setup() {   Serial.begin(9600); // set serial speed   pinMode(ledPin, OUTPUT); // set LED as output   digitalWrite(ledPin, LOW); //turn off LED      //   //         lcd.begin(16, 2);           lcd.setCursor(0,0);         lcd.print("     DaNeiL");          lcd.setCursor(0,1);         lcd.print("GASOLINE-STATION"); } void loop(){   while (Serial.available() == 0); // do nothing if nothing sent   int val = - '0'; // deduct ascii value of '0' to find numeric value of sent number     int buttonstate =;       buttonState = digitalRead(buttonPin);   if (buttonState == HIGH) {         digitalWrite(ledPin, HIGH);     Serial.println("PLEASE WAIT WHILE REFUELING"); Serial.print('\n');     delay(9000); digitalWrite(ledPin, LOW);    // turn the LED off by making the voltage LOW     Serial.println("price 40");     Serial.print('\n');     Serial.print('\n');     Serial.println("liters 1");     }   else     // turn LED off:   if (val == 1) { // test for command 1 then turn on LED     Serial.println("P20.00                    1/2");     delay(10);     digitalWrite(ledPin, HIGH);// turn on LED      lcd.clear();      lcd.setCursor(0,0);      lcd.print("PRICE=  P20.00");      lcd.setCursor(0,1);      lcd.print("MILLILITERS=500");         }         {     Serial.println("P40.00                      1");     delay(10);     digitalWrite(ledPin, HIGH); // turn off LED      lcd.clear();      lcd.setCursor(0,0);      lcd.print("PRICE=  P40.00");      lcd.setCursor(0,1);      lcd.print("MILLILITERS=1000");       }   if (val == 3) { // test for command 1 then turn on LED     Serial.println("P80.00                      2");     delay(1000);     digitalWrite(ledPin, HIGH);// turn on LED      lcd.clear();      lcd.setCursor(0,0);      lcd.print("PRICE=  P80.00");      lcd.setCursor(0,1);      lcd.print("MILLILITERS=2000");       }   else if (val == 4) // test for command 0 then turn off LED   {     Serial.println("P120.00                      3");     delay(1000);     digitalWrite(ledPin, HIGH); // turn off LED      lcd.clear();      lcd.setCursor(0,0);      lcd.print("PRICE=  P120.00");      lcd.setCursor(0,1);      lcd.print("MILLILITERS=3000");       }       if (val == 5) { // test for command 1 then turn on LED       Serial.println("P160.00                      4 ");       delay(10);       digitalWrite(ledPin, HIGH);// turn on LED        lcd.clear();      lcd.setCursor(0,0);      lcd.print("PRICE=  P160.00");      lcd.setCursor(0,1);      lcd.print("MILLILITERS=4000");         }     else if (val == 6) // test for command 0 then turn off LED     {       Serial.println("P200.00                      5");       delay(10);       digitalWrite(ledPin, HIGH); // turn off LED        lcd.clear();      lcd.setCursor(0,0);      lcd.print("PRICE=  P200.00");      lcd.setCursor(0,1);      lcd.print("MILLILITERS=5000");         }       if (val == 8) { // test for command 1 then turn on LED     delay(10);     digitalWrite(ledPin, LOW);// turn on LED     lcd.clear();      lcd.print("     DaNeiL");          lcd.setCursor(0,1);         lcd.print("GASOLINE-STATION");       }           if (val == 9) { // test for command 1 then turn on LED     delay(10);     digitalWrite(ledPin, HIGH);// turn on LED     lcd.clear();      lcd.print("    FULL TANK");      lcd.setCursor(0,1);      lcd.print("PLEASE WAIT....");       }            if (val == 0) { // test for command 1 then turn on LED     delay(10);     digitalWrite(ledPin, LOW);// turn on LED                }   else if (val == 12) // test for command 0 then turn off LED   {     delay(10);     digitalWrite(ledPin, HIGH); // turn off LED           }   else {     }     }

Topic by NeilV2   |  last reply

12v to 6v voltage regulator at about 15 amps

Hi, i have a 1963 VW bug that is very stock, but the 6v lights just dont work very well (dim at idle, then not too bright at speed) it is very simple to use a later 12v generator and then swap out all the lights, battery, coil and relays and it works great. BUT i have a 6v wiper motor and also a 6v gasoline heater that i will need to keep at 6v (the 12v parts are just not available or too expensive) I have found an article that recommends building a cheap voltage regulator using a 7806, ( 6 volt, 1 amp regulator) and 2 1uF 35v tantalum capacitors, then a NPN transistor which the original poster says is a 2N5881 npn transistor. here is the scematic. the pdf article is attached and the link to the original article is here  The questions i have 1. what is a 2n5881 been replaced as? i cannot find it at jameco and the original posted doesn't give any specs for it. 2. how would i "pump up" the amps available from 10 to anything else (looking for about 15 amps) thinking that the npn transistor is the key but i am new to this and wouldn't even begin to know where to look. 3. what happens if any item fails? can i put some sort of safety into this so it quits rather than passing any addition voltage through additional info the heater runs at about 85 watts so 85 watts / 6volts = 14.616 amps  the wipers run at much less than that so building 2 of this would work great.  Any ideas? Thanks in advance for any insight to this 

Topic by starvin   |  last reply

Tin Can Turbine Engine

Hello!               Let me give you some insight into this project (Tin Can Turbine). I'm going to school to get an Airframe and Power Plant Cert. (Aircraft Mechanic). I stumbled across this idea on YouTube one day in class and it really got my gears turning. It's purely for fun, and I'm not even sure if I have the technical skills to get it to work.             First of all the way a turbine engine works in layman's terms is Suck, Squeeze, Bang, Blow. The fan section sucks air in from the atmosphere, Where it is moved to a compressor section which squeezes the air into a tighter pocket of air; which makes the air hotter and more explosive. When the compressed air is pushed into the combustion chamber, it is more volatile than normal air due to the compression. When you add a fuel (jet fuel, gasoline, propane, kerosene etc...) it will ignite with the compressed air (given that there is a spark to get the fuel vapors to ignite). When the fuel/air mixture is lit the fire will continue to burn without an ignition source due to the explosive nature of the compressed air. And the gas (burnt fuel/air) is pushed out the exhaust. There are blades in the rear of the engine called turbine blades, which are connected to the front of the fan/compressor section, in some cases there are two or three turbine blades, which drive the fan, compressor sections independently. Due to the turbine blades being pushed by the exiting gasses, the engine becomes self sustaining. And through black magic, you have a jet engine!!!              I'm going to attempt to construct a jet engine (not a motor!) out of a "tin can". I'm really not going to use a tin can, I'm actually going to use .032" thick 3" wide, and about 6" long exhaust piping made out galvanized steel. It's a lot thicker than a typical soup can, thus willing to stand up to more heat. My proposed fuel source will be propane, because it's cheap, and the I'm sure that I'm capable of controling the amount of fuel going into the engine. I'm not sure yet how many fan blades vs. turbine blades that I'm going to use. Right now I'm in the experiment phase. My blades are going to be made out steel can tops, because there is very little cutting involved, beside the actual cutting and angling the blades. and they fit perfectly into the pipe. As for the fuel delivery i'm going to use a copper pipe that is approx .042 thick and hallow. I'm going to cap the end, and wrap it around the inside of can. There will be eight holes drilled into the copper, which should give it plenty of fuel at equal pressure all the way around the can, equals same heat all around.         As for the drive shaft, I'm not exactly sure of what to use for that. I may want to go with something hardened already, so the heat surrounding it won't melt it. (that's the hope anyways) . I'm also not sure of what sort of bearings I will use. I was thinking skate board bearing with the plastic crap around the middle taken out (so it doesn't melt and seize the bearings) and extreme high temp. white lithium grease for lube.          This is an experiment and I guarantee myself absolutely no success. But I think it will be fun to try. Questions or comments are more than welcome. Please, if you see any problems with the design, let me KNOW!!!

Topic by shawnpc   |  last reply

Homes Protected from Raging Forest Fires

Every year we hear about countless homes being destroyed by forest fires. Unfortunately, the public isn’t aware that our current level of technology can readily address this problem. I have been examining a concept that has intrigued me over the past decade and which I call a “fire shield”. This shield functions by completely enveloping a private home and protecting it against encroaching forest fires. We’re talking about protection against a blazing fire storm generating high speed winds and flames in excess of 100 MPH. The shield would be a flexible structure that easily inflates like a balloon (needing perhaps three people for a day to erect) and forms a protective hemispherical, shell-like dome over the home (Fig-1). The structure would be impervious to penetration by high speed flames and their intense radiant heat, thereby keeping the enveloped home safe, cooled and protected. Each home would require a pre-fitted, customized buildup of a number of pre-built modular, balloon-like segments. They are manufactured and then assembled over the house only once, to get a customized tailored fit, then taken down and stored, and thereafter are ready to be deployed within a day’s advance notice of an encroaching forest fire. The Fire-Shield would be a modular, portable, inflated dome like those used for indoor tennis, which is prepared and custom-fitted to be later erected within a day. While typical inflated domes have their entire inner volume pressurized, our Fire-Shield will only require pressurizing a small volume contained between its double-walled structure that forms the dome as shown in Fig-1. The surface of its outer material uses NASA's radiatively reflective, aluminized Mylar to ward off the intense radiant heat of a fire storm. In addition this surface gets protected against the 100 – 150 MPH fire-winds, which are ready to impinge upon it, by injecting a high speed film of air (just like gas-turbine blades) produced by portable blowers. The actual heat-shield contains multiple, redundant pockets of cells directing the flow of air to both film-cool its surface and protect the shield against direct flame contact. Each major modular segment would contain its own portable, gasoline powered wind generator to supply the airflow. Depending upon home-size, several of these modules would be easily connected using Velcro plus redundant snaps and safety-stays. The shield gets attached over chimney tops and to pre-installed, grounded cement-posts, plus strategic hooks about the outside of the house. Special, inflated pillows are also strategically placed (between the shield and the house exterior) to facilitate the formation of a hemispherical shield that envelopes and protects our home against a high speed fire-storm. The Fire-Shield Design Concept The concept for a fire shield went through a gestation period of several decades as my career in thermo/fluids evolved. It started with the design of jet engine turbine cooling to thermal control of satellites, and finally to designing radiant heat barriers for cryogenics. These activities enabled receiving a score of patents as well. These activities inspired the concept for a rapidly deployable Fire-Shield to protect homes against a raging forest fire. The idea requires integrating several technologies ranging from inflatable commercial air domes to jet engine cooling to radiatively cooled spacecraft. Also included are flexible material coatings developed by NASA that radiatively reflects high temperature heat, making the deployable Fire-Shield a viable concept. Two key design principles are employed to protect both the heat shield and the home it envelopes. The first is shown in Fig-2 and uses a high speed film of air (faster than the anticipated fire-storm flame speeds of 100 – 150 MPH) that is locally directed to blow over the shield’s surface, cooling it and protecting it just like the metal turbine blades of jet-engines. The temperature of speeding flames impinging upon a jet engine’s metallic turbine blades is hot enough to easily melt them, yet the blades are protected by using this film cooling technology. The same technology will protect the heat-shield from meltdown when high speed flames of 100+ MPH attempt to impinge upon its surface. The second principle protects the shield against the intense radiant heat coming from a blazing forest fire where temperatures can exceed 2000 F. While this radiant heat does not physically touch the shield, as would a fire-storm’s flames, its presence is “felt” and is as deadly as the hot flames that would normally scrub over the shield without our film-cooling. We use a radiatively reflective, thermal coating barrier that repels this radiant heatload and protects the shield from melting. Such coatings were originally developed by NASA to protect satellites and spacecraft. The coating gets applied to the shield’s outer domed surface and will reflect better than 97% of all intensive radiant heatloads that are incident upon the dome’s surface. (Patent Pending; Original Concept Documented in 2006)  

Topic by RT-101