Discussion on the best fuel type.

[Bhuvan Aerospace]

Also, can you suggest me a way to make it run?

[racket]

LOL...............we can't " make it run" , its a voluntary decision by the engine and depends on its construction and matching of compressor and turbine stages as well as the combustion process , if everything is in balance it will run , if not .........it won't..............hence the need to follow proven designs and methods of construction , once we deviate , we have problems .

Using propane is a great help as it simplifies combustion as its a very forgiving fuel that doesn't need pumps or sophisticated injection .

A relatively very strong "starter" is also required , your self sustain RPM will be >100,000 rpm .

[Bhuvan Aerospace]

We have maintained 0.1mm accuracy in making the combustion chamber, and Propane is the primary fuel. And also sir, we have used Bosch 650W air blower with an airflow of 3.7m^3/min. It accelerates the compressor RPM to more than 60,000 RPM.
Ya, bigger turbos have better accuracy. Also, we have decided that the main engine will be 2kN Afterburning Axial TurboFan Engine.

Cheers,
Mrinmay.

[Bhuvan Aerospace]

Here, have anyone made any Axial TurboFan or TurboJet Engine?

[racket]

The best place to ask that question is on the GTBA Site www.gtba.co.uk/

[Bhuvan Aerospace]

Do I have to pay 25 pounds for membership? I saw that.

[racket]

Yes there is a Membership fee , but well worth the money as their data base is huge , what ever you need to know about axial engines is on there, its the Group that virtually invented the RC turbine engine , theres some very bright fellows to provide info , whereas here on JATO we're more into DIY turbo based engines , between the two groups most guys can find what they need .

[Bhuvan Aerospace]

Ya, JATO is based directly on DIY turbo based engines. But GTBA has a huge database of axial jet engines. But sir, is that one time payment or monthly?

[racket]

Theres a smaller ongoing yearly membership fee, I've been a member on and off since the 1990s , its not a very active Group these days as most people simply look up the required info in the various Files available

[Bhuvan Aerospace]

So shall I buy it?

[racket]

your decision

[Bhuvan Aerospace]

What you prefer?

[racket]

I can't know what all your requirements are , so my choice is irrelevant

[Bhuvan Aerospace]

My requirement is to know the compressor designs and etc. but what do you prefer? Axial compressors or radial compressors?

[racket]

LOL..........you have no idea how complex compressor design can be , and thats just the simple radial wheel , the multi stage axial is even more so .

There are pluses and minuses with both types depending on the end use .

Unless you have a very large budget , forget axial compressors.

There are plenty of Papers on the Net about compressors , do some research .