Hydrofuel

I come across with some article about the title today, something regarding Malaysian claim have design some device that save fuel for a car!

I never use it before, so this article is just for a purpose of expressing my thoughts, not to critisize or praise it.

Firstly, why we need this system? Because the oxigen concentration in the air, is about 1/5 in ratio, this is far more than enough for a car at lo speed. But at high speed, the petrol intake may be more than the amount of oxigen it can be reacted(burned) with, therefore result in imcomplete combustion.

Of course a car can be fine turned to allow it carbureter or fuel injection system or whatever to limit the amount of maximum petrol intake, so at full pedal, the amount of air mixed with petrol, is in perfect ratio to conduct complete combustion. But that is an ideal case, in real life that seem imposible due to how the mixture mix up and their condition, there are some randomize activity in the particle due to its size that prevent complete combustion in short period. Therefore, we can always expect some carbon or carbon monoxide produced at the exhaust.

Please note that I am not expert in this matter, therefore I know very little. If we can use some electricity to split the water and get some oxigen from it, we should be able to increase the oxigen density of air intake so that we can fully utilize the potential of the petrol, if the fuel is fully burned, it will give more output. In ideal case, if we can put in pure oxigen into the engine block, it will be excellent. But in real life, the cost of put in pure oxigen into a car is far too higher than the petrol you can actually save, this is not pratical to be applied in automotive industry.

Pure oxigen will not only give full combustion, but it also give speed! The speed of the petrol burn! Expanding the volume of gas mixture in short period, will result in largest force being produced acording to the Newton second law. Because the burned mixture particle expand at higher acceleration. That is similar to gun catton explosive, people damp catton into liquid oxigen, it can become explosive! It burn too fast untill explosion can occur! Therefore the engine block must be design to hold this kind of force, otherwise one is actually making a bomb.

But also note that the inertial force will limit how fast the engine can response to the explosion force! Every car have a most efficient cycling frequency that can give you higher efficiency, beyond that point, it simply use more petrol for same kilometer. And it varying with age. Therefore maintain the RPM of a car is also a good way to save petrol. The sweet spot is usually judged by experiences especially for those car with fuel per km meter!

Therefore, it required some sort of control, that control the rate of the oxigen being produced, the oxigen should be produced when the car is under high speed such as on a high way. So it do not utilize battery power when the car is under lo speed. I expect this kind of system is effective. But just theoritically. The only problem in this kind of system is the cost per liter oxigen you pay for. For example if you pay RM0.90 for oxigen but you get extra kilometer that worth RM1, it is consider you earn RM0.10.

But if you only use less than RM50 petrol per month, and you install a system that cost few thousands which only last you for let say 3 years, this is absolutely undesirable, paying extra for nothing. But if you use few hundreds RM petrol each month, this device may be useful. Consider you drive in high way, not in city.

In a city, it is better to use a hybrid car, cause electric motor is more energy effective at start moving a car. In a city, always car jammed, one moving and stop frequently, a electric petrol hybrid car will save you some petrol. But sometime this kind of not so well established rules is not always right, consider the cost of battery replacement corespond to the wear and tear and the initial cost of purchase, there are trade off point where petrol car is actually save more money for someone. You must use the car at certain kilometer, then you earn the benefit. Besides, in Malaysia, do not park a hybrid car under sky, the radiation from sun may easilly kill the battery inside faster due to heating. Those battery can not be expected cheap, it is specially built, limited edition!

Ok, after so many talking, there are nothing related to hydrofuel, I apologise for that. I believe they try to put in both hydrogen and oxigen into the air intake of the car. I doubt if this is a scientific way to do it correctly. This thing may be good, if you like to play with car, but, burning hydrogen with oxigen together will produce water right? That is not a good idea for engine block, does it speed up the rate of the component inside the engine block become rusted? I am not sure if an engine block and piston is make of stainless steel, but I guess that is imposible. Besides, even stainless steel can become rusted under hot environment! Saving few hundreds or even thousands a years and result in damaging a few ten thousands car is just not worth it sometime!