Gas burner for steam plant

Hi Terry, I have had a quick flick through all 3 of S Chastains books they would not really be much help as whilst they deal with combustion of fuels it is on a scale way bigger than what your looking for. The first book I mentioned is the best but very expensive - in part because it is one of the few that covers the subject in some detail and in practical terms but again is on a scale much larger than you need. If you can get it from a library that would be the way to go. One clever and cheap idea is the use of MIG welder contact tips as a jet,( 0.6mm is the smallest ) ! Smooth flow and the need for ( I think )a 15 times jet diameter straight run to allow the gas to accelerate before exitting the jet as a true cone and smoothly entraining air. Good luck and best wishes Noel.

Thanks Noel,

I appreciate the time it takes to write these texts in the context of a busy day. I now intend to make the jet easily removeable so that I can experiment with a range of nozzles. I do have a mig welder so have a range of tips to try if I can't get the range of jets I need. I also have a number of calor gas jets of various diameters which came with a gas hob, I know that they are perhaps larger than i need but it may be worth a try for experimentation.

Thanks for the heads up on the straight run before the nozzle, it makes sense to help remove turbulence. Do you know if your 15x suggestion is a minimum, can it be more, or a standard i.e. no more, no less?

I did some contract design work many years ago with a company, Wellman Incandescent, on gas fired tunnel kilns but was concerned only on the construction design, we had a qualified gas engineer who designed the gas flows etc.

Regards

TerryD