Thank you for your answer It seems that the fuel of your engine is much more economical. So we have to go to the gas station near our house.
Fuel names vary a lot internationally and there is often confusion, but Aspen 4T isn't ethanol based. It's an alkylate petrol, refined in a different manner to be cleaner burning and to produce less harmful fumes than car fuel, so healthier for stoves and users. In the UK we can buy naptha in the form of panel wipe (although some of these are water based, beware), or Holts brake cleaner comes in 5l cans, which still works out around £3.50/litre.
@Blackdog: Thanks for this information about Aspen being made out of alkylate petrol. Most important is, that it burns cleaner than car petrol. Maybe I try this Aspen 4-stroke (my father has one canister for his motorised garden tools).
@Eppo @Blackdog Hello We don't have good quality fuels for stoves here. Is it possible to mix car gasoline with methanol and make good fuel without smoke? Do you think that 15% car gasoline and 85% methanol will be of good quality with this mixture? Please help if you have experience in this matter.
I think that 15% car gasoline and 85% methanol will not work because that mixture boiling point is much lower that 100 % car gasoline which works ok in gasoline stove. Can you find Heptane at your area? That will burn purely in gasoline stove. I use Heptane in my gasoline stoves.
In my experience, a classic gasoline burner cannot burn such mix without modifications. Alcohol, especially methyl alcohol, requires much less air, so the flame becomes too lean. 85% gasoline and 15% alcohol will burn with a beautiful blue flame. Alternatively, 85% isopropyl alcohol and 15% gasoline will burn perfectly with a nearly invisible flame without significant modifications.
@Afterburner @Leromak Thank you for your attention, guidance and good advice, I will follow up and test and report the result. Have a good night
@kohdarmiansali: Maybe you can get some of those solvent which is also used for cleaning clothes. In Germany we call it 'Waschbenzin'. It's kind a very cheap gasoline without all those additives that are used today. Or try it with some Nitro-based solvent. Kind regards.
Hello, I made a small drawing by hand and hope it explanes the design of the valve quite well. On the left is the valve seating, because it is soldert to the burner coil, I made the valve seating first before a soldert it to the coil and now I have to life with this design till I make another burner. For the needle you can see the different angles of 60° and 30°. I tried with 60° first, but actually I use the 30° angle and on top I placed the needle cleaner which was made out of a 2mm welding rod. The spindle has a M4x0.7 thread but I will try to make one with a M4x0.5 thread to make adjustment more accurate. The good thing by using 2mm welding rod for making the cleaner needle is, that I only had to grind the end of the rod, the diameter stays at the 2mm and when the tip is O.K. I put it in the spindle without the risk of damaging the 30° angle cone of the valve. Kind regards
@kohdarmiansali I forgot one thing. Alcohol fuel is very corrosive and destroys oil-resistant rubber seals. So storing such fuel in the tank for a long time is not a good idea.
with a mixture of 15 to 85 alcohol and gasoline @Afterburner @Leromak @Eppo @Blackdog Hello dear friends, good night I first tested the combination of disinfectant alcohol (industrial) with gasoline, but unfortunately, these two did not mix together due to many impurities, probably the presence of water. Then I tested the car's methyl alcohol and gasoline once equally and once equally at 15% to 85%. In both cases, the results were relatively good and without smoke, but the flame was a little yellow and weak. While gasoline fuel, if it has a higher quality, produces a stronger flame on its own. In my opinion, in countries where gasoline is of lower quality, a mixture of 15 to 50% alcohol (methyl) or similar alcoholic fuels with gasoline gives good results in the Borde stove. View attachment 314239 with car gasoline
I am not sure if this will cause soot. Compare the flames of my postings #44 with #73. It is the same needle (maybe slightly different open) but both with gasoline Super95, the flame looks completely different, so the support with fresh air and a proper windshield makes a lot of difference. So I would give it a try, as long as the liquid can become a proper gas with a good air-ratio it will burn smooth. You also should be aware that different fluids have different power/temperatures when burned. Maybe I try it with some Diesel and inform you about the result. Maybe it won't start or did not run well, cause the burners I saw that were able to burn Diesel has a completely different needle/valve than for Petrol/Gasoline use. @kohdarmiansali: Did you make a new burner with a different valve/needle or ony testing some mixtures? Kind regards
@Eppo Hi dear friend Yes, I made a borde-like stove today in the mountains I also tested kerosene. Despite the high preheat of the coil, no reaction was observed. Maybe the fuel source should be heated well in addition to the coil to produce steam. Maybe you should mix kerosene with alcohol or gasoline to get the answer. God bless you until the next tests.
Nice pictures and a great landscape. normaly the heat in the coils creating some overpressure which presses in the tank and as a result the liquid is pressed in the coil into the only open direction (the needle valve) on its way to the needle it becomes a gas and then comes out the needle for burning. Do you get some overpressure in the tank doring your tests with kerosene?
I have never heard that coil burners would work with kerosene and diesel would be more worse fuel for coil burner. I would only use gasoline for coil burners (or Heptane which I have used for my coil burners).
@Eppo @Afterburner Hello, thank you for your attention No, no pressure was created in the coil, maybe the tank can be heated with a torch to create pressure Kerosene has less combustion power than gasoline. Maybe by installing a pump and increasing the pressure, it can work with kero.
I think that pressure in not the problem. Boiling point (temperature) of kerosene is higher than for gasoline so coil's heating power is not enough to evaporate kerosene. You would need to heat the coil with external torch but that is not safe because that can create too much pressure into tank and stove becomes a bomb.
Dr. Solus (mass effect) mode on: 1. The flame is orange. Methanol burns with a dark blue flame. Gasoline burns with an acceptable blue flame. Abnormal effect. Fuel impurities? Maybe. 2. The flame is weak. Low pressure? Maybe. Impurities with high heat capacity? Maybe. 3. Is car methanol a racing fuel or a windshield cleaner? Then the impurities can be anti-corrosion or detergent agents. 4. Flame with orange tails, but not "soft". Impurities? 5. Water in alcohol can give an orange flame (almost always does!) and reduce the efficiency of fuel heating. I have not seen such effect, but it is quite possible.
