Natural,
Thanks a lot for your posting. This is the sort of discussion that I've been waiting for.
To answer your question, the water molecules stay as it is and not split into hydrogen or water. The water is used to maximize the heat absorption from the combustion heat. As you pointed out...
Ed
I forgot to write that all of the water line is fully insulated to avoid heat loss. This will also insulate the water line from cold temperature outside. The water storage is also included, i told my project team members that the more heat is lost, the lower the efficiency will be
Ed
Based on our CFD simulation, the angle of nozzle makes a big difference. Many prior arts inject water into the piston bowl and they have also reported high HC meaning that the injected water affected the flame development. If you go over my slide where I include the combustion chamber 3D...
Ed,
Before you can exploit the steam expansion in the combustion chamber, you first have to make sure that the water injection does not surpress the flame development. That's why I had to inject the water upward. The one is to make sure you have a very fast combustion and that can only be...
Pat,
Is the resin that you're talking about inside or outside the tank? If you have the experiment report, it will surely shock many NGV tank companies that we've worked with
pat
that's a news to me. Can you provide me with detail experiments report. I know many companies and experts who make a lot of money doing composite tanks for NGV. I will forward the report to them and get them to write to you.
Dan,
That's what I thought too. I have worked in both production and research. While I'm wearing my researcher hat now, I worry less about the minor engineering challenges and concentrate more on achieving my research objectives.
When I was faced with 2800K cylinder temperature, it took me 2-3...
Brian,
Nitrogen is a bad thing to have in the combustion chamber, by getting rid of the nitrogen, you will eliminate the possibility of NOx. Without any worry for NOx, i can raise the flame temperature slightly higher for more complete burning. Furthermore, I dont like the idea of having to...
if you can burn inorganic material to get heat, I will have to salute you too but based on my research, I have to disagree with you. You can oxidize metal but you wont get intense heat that you will get with gasoline, diesel or methanol.
To us, it's getting harder to get oil and gas that we...
Mike
You can either add lubricity additive in the methanol fuel or improve on the coating or material wear resistance. Furthermore, with fuel and oxygen stratification inside the bowl, there is no need at all to run at 1800 bar. Less than half of that pressure is good enough
Greg,
A unit within PETRONAS run a big fleet of natural gas vehicles, many of them are certified to work on high pressure line. Oxygen is stored in the composite tank that is much safer than the gasoline tank. There is also a relief valve in case the surroundings is too hot, this will buy some...
oh yeah, it's making a comeback. As a rule of thumb, if you open up the cylinder bore surface for ports, it's a game over. HC, CO and soot will just go up.
The 2 stroke needs to have poppet valves as in the 4 stroke engines.
Dan,
The new engine evolved so much after we faced so many technical challenges during the design stage. I checked around for prior arts and found these two prior arts: -
1) At the end of world war 2, US navy overruned Japanese submarine base near Okinawa. They found oxygen based torpedo that...
Mike,
Iron smelting plants that have switched to oxygen combustion reported 30% decrease in operating cost.
Yup a whole new refilling station that refills methanol, water and oxygen at the same time. Oxygen is supplied using PSA oxygen generator and can the generator can be placed nearby or...
Hey guys,
I've been working on this novel combustion cycle for the past 2 years and I recently presented the concept in Engine Expo in Stuttgart. Based on the responses that I got from the industry, I am not surprise if people are now thinking of building the prototype engines. Appreciate if...
sompting
I used heywood textbook in my internal combustion engine course back in 95. I still have it and been referring to it from time to time.
I'm not sure whether heywood textbook answered my question as what I posted above. if you happen to see the answer in heywood, tell me which page to...
the first thing that will limit your engine rpm is the phenomena called valve float. Inertia of the relatively heavier intake valves is likely to make it difficult for the valve to return to the seat at high rpm.
If you see blue smoke coming out of F1 cars, that's probably due to the intake...
I got confused a bit over the heat capacity of various gases. In my Bosch handbook, CO2 has cp of 0.82 and cv of 0.63. Nitrogen on the other hand has cp of 1.04 and cv of 0.74. From the property table it is clear that nitrogen has higher number if compared to CO2 but i am wondering on why many...
