Fuel Systems for the Aero-Gas Turbine

Abstract

The purpose of the paper is to give an account of the problems associated with the development of the fuel systems of those aero-gas turbines with which the author has been principally associated. While, therefore, it cannot claim to cover all aero-gas turbines, the general problems involved are common to all the turbine units under development, so it is hoped that the paper will be of general, as well as specific, interest. Even so, the author has found very great difficulty in compressing some six years of very intensive work carried out by a large team of engineers into the space of one paper. Much important work has been omitted and other work compressed into small space, but it is hoped that it has been possible to give a fairly comprehensive treatment of certain particular developments while at the same time making clear the fundamental principles on which these have been based. The paper is divided into two sections, the first dealing with the supply of the fuel in the appropriate quantity, and the second covering the atomization of the fuel preparatory to its evaporation and combustion. As far as possible, the two sections will be treated as separate entities, although they are very closely interrelated, since the type of atomizer has an important bearing on the fuel system. In studying the paper, therefore, it may (for example) be necessary to refer to certain items in the second section before the first can be fully appreciated.