Recent content by voltech444

Thank you so much for your reply! So I basically agree with everything you're saying there. Ok so I'll try to do a speed round here lol. Yes there's a good amount of literature on the subject for both CI and SI engines. I've dug through them over the years. I've looked at papers where they only...

Thank you! Yes I've been wanting to run this experiment for years but just didn't have the disposable income to do it. Yes, I plan on determining the limits experimentally, I'm fully prepared to blow up this perfectly good diesel generator in the name of science! Yes, all of the energy used to...

I have a single cylinder 5kW diesel generator to use for fuel efficiency and emissions reductions improvement experiments. I built an emulsifier out of an old drill press and paint cans. It's basically just a spinning cylinder inside another cylinder to get a lot of shearing force. The...

https://www.sciencedirect.com/science/article/pii/S1364032113000592 This one too

Ok I will do that. I was also thinking of using compressed air to test; there's a few videos on youtube of people doing this (converting scroll compressor to expander and powering with compressed air) so it can definitely be done. I will put together a schematic and post it here; i'll also make...

I bought a A/C scroll compressor from a 2005 Toyota Prius. I want to convert it into a expander to use in a ORC waste heat recovery system. If I can get it working on the bench, then it's my dream to put it on a hybrid vehicle, most likely another Prius since I own 2. The electricity it...

I think the kers system uses electric regeneration using electric motors and batteries. Another system uses a carbon fiber flywheel that spins over 100k rpm if i remember correctly and then uses it just like regenrative braking. I think there's also pnuematic and even hydraulic versions they...

Thats a good question, maybe it would be wise to disconnect it before you did this trick. On my mower engine i don't think there's any cat to worry about, only a small exhaust.

There are two types of rotary screw compressors; oil-free and oil spray or bath. I would think the oil free version would be best, it could be toleranced so that when it heats up it would have the correct tolerance. The rotors could be made or coated with silicon nitride which has great thermal...

After mowing my whole lawn and mulching a bunch of leaves my mower was nice and hot. It's a Kawasaki 10 Hp engine, i pulled off the air intake cover and pushed the throttle up to about 2/3 power, i then slowly dropped distilled water in, it sucked in the water, the rpm would drop a little and...

I've been reading a lot about rotary screw compressors and using them as expanders in ORC systems. There are about 3-4 companies making these for ORC systems and they seem to be very reliable and efficient. They are much more tough than turbines; they can take dry steam ,wet steam, saturated...

I'm wondering if you could utilize this extra volume to turn a larger free turbine which could turn an alternator. My thinking is that the water injection could utilize the waste heat in the exhaust stream and maybe make a more efficient turboshaft. I know it's different than what I originally...

Wouldn't the same be true if u injected fuel into an afterburner? Doesn't that create back pressure too?

Hey I've been thinking of this idea for a while, If I had a small boat with a home made gas turbine engine on it to power it solely with thrust. If I put an afterburner on it and nozzle; and had a small intake for water that filtered out all of the crud. Would it be possible to generate more...

I also thought about injecting oxygen and fuel exactly like using nitrous, although it would also be necessary to inject water to keep the temperatures down and create more gas to drive the turbine.