Combustor Spectroscopic Probes

Spectroscopic_probe

The Problem: Geometrical variations of components that introduce both the fuel and air into Gas Turbine combustion chambers on industrial engines have been found to produce variations in both the pilot and main fuel and air flow rates. This leads to variations in combustor performance and has implications for engine performance, emissions and durability.... Read more

Piston Seal Test Rig

The Problem: To develop a test rig capable of testing pairs of polymeric seals under application representative conditions, running continuously for several years. The seals need to be operated under pressure and subjected to temperatures ranging from -50°C to 300°C. The rig needs to be able to control pressure and temperature as well as having the ability to simulate both large low frequency and small high frequency axial displacements.... Read more

Wind Tunnel Seeder

The Problem: As part of any LDV and PIV measurements seeding particles need to be introduced into the flow. For large size wind-tunnels the volume of air going through them is large and “off the shelf” seeding generators cannot produce the density of seeding required. Smoke generators are the only devices that can generate large quantity of seeding and produce sub-micron particles. In LDV applications the small aperture of the receiving optics combined with the small size of the smoke particles produces weak signals and low data rates. In PIV applications the interrogation areas in large wind tunnels are required to be large and smoke particles are not ideal because they produce weak signals (or necessitate the use of high power lasers).... Read more

Aeroengine Fuel Control Test Rig

The Problem: To design and manufacture a hydro mechanical test rig that can be used in the commissioning of aero engine fuel supply and control systems. The rig needed to be capable of testing fuel systems ranging from those used on small business jets to those used on large engines powering long haul jumbos. The rig needed to have increased functionality to improve testing efficiency and reduce downtime. The main purpose of the rig was to flow Kerosene through the fuel system components at a range of pressures, temperatures, and fuel flow rates accurately replicating conditions that the engine will experience in a flight cycle operated in different parts of the world. The entire rig had to be contained within a pre-determined space envelope, yet still achieve target removal and installation times of major components during maintenance so that rig down time was as short as possible.... Read more