Open AccessGeometric model of the gas turbine combustion chamber
Author(s) -
Viktor Korotkiy,
Е. А. Усманова
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1260/7/072009
Subject(s) - combustion chamber , nozzle , combustion , gas turbines , profiling (computer programming) , mechanical engineering , computer science , environmental science , simulation , process engineering , nuclear engineering , engineering , chemistry , operating system , organic chemistry
Gas turbine plants operated on a mixture of natural gas and air are widely used for self-contained power supply of buildings and structures both in urban conditions and in temporary settlements. When designing perspective gas turbine plants, we need to develop a non-toxic, environmentally friendly combustion chamber with the minimal emissions of harmful substances in a wide range of changes in operating parameters. It is a complicated engineering challenge to meet this condition: it is necessary to ensure geometrically accurate profiling of special holes in the cylindrical wall of the combustion chamber to insert fuel nozzles. As opposed to the known methods, the article proposes a profiling method, which combines the advantages of the known methods of descriptive geometry and precise methods of three-dimensional computer simulation. The real profile of a hole in the wall of the combustion chamber is a fourth-order spatial algebraic curve. The article proposes an algorithm for profile approximation using second-order curves by means of three-dimensional computer graphics, which allows us to streamline the preparation of a program for a water jet NC machine.