Re: Turbines driven by pulse jets
Posted: Tue Sep 15, 2009 2:26 pm
Hi V
Thanks for taking the time to read it and I hope enjoy it too, that was really my goal, a it of fun and to start a discussion on basics, you seem to have pulled out of it all the main points and stated them very clearly.
In reply to a few points,
yes compressor input and efficiency is some thing that is all to often glossed over or entirely missing in posts, probably I am not the only one grinds their teeth about that the huge shaft horsepower required to spin up even a small compressor wheel normally comes as bit of a shock to people.
Maybe the only person to consider a stationary combustor from scratch so far has been Reynst, most of the others were based on traditional flight engine layouts including my own commercial design.
Capstone who produce small scale turbine power units for combined heat and light installations probably have the best economic price point nailed down for a successful marketable product, smaller outputs than what they produce is probably not worth it.
Agreed for specific designs optimized to a pulsejet output, I am watching your efforts to develop one with interest as you are to my mind doing it correctly.
Personally I prefer the Reynst pot as a turbine driver and have a few ideas jotted down for when I get time
And yes a bit of fun along the way too
Viv
Thanks for taking the time to read it and I hope enjoy it too, that was really my goal, a it of fun and to start a discussion on basics, you seem to have pulled out of it all the main points and stated them very clearly.
In reply to a few points,
yes compressor input and efficiency is some thing that is all to often glossed over or entirely missing in posts, probably I am not the only one grinds their teeth about that the huge shaft horsepower required to spin up even a small compressor wheel normally comes as bit of a shock to people.
Maybe the only person to consider a stationary combustor from scratch so far has been Reynst, most of the others were based on traditional flight engine layouts including my own commercial design.
Capstone who produce small scale turbine power units for combined heat and light installations probably have the best economic price point nailed down for a successful marketable product, smaller outputs than what they produce is probably not worth it.
Agreed for specific designs optimized to a pulsejet output, I am watching your efforts to develop one with interest as you are to my mind doing it correctly.
Personally I prefer the Reynst pot as a turbine driver and have a few ideas jotted down for when I get time
And yes a bit of fun along the way too
Viv