The principal purpose of the facility is to experimentally evaluate the ICD's ability to synergistically be utilised as a heat exchanger in cryogenic fuelled engine concepts. Thus, the facility is designed to evaluate engine-typical ICDs as well as novel synergistic ICD heat-exchanger concepts. The facility was built as part of the EU project ENABLEH2 (Grant agreement ID: 769241).
The large-scale low-speed test facility is designed to accommodate operating conditions representative of future large-size geared commercial turbofan engines. Figure 1 illustrates the schematics of the facility and Table 1 includes the compressor and intermediate compressor duct design parameters. The test facility is semi-closed with an ambient static pressure recovery at the outlet of the ICD. Operational conditions are achieved by restricting the flow upstream and by regulating the input power to the compressor which drives the main flow through the facility. The flow is conditioned for thermal and pressure uniformity in a combined volute and flow conditioner, between the restrictor and the compressor inlet. The ICD is mounted downstream of the two-stage compressor and the ICD outlet is the outlet of the facility. The flow is recirculated into the facility for thermal stability, and to limit particle and noise mitigation.
Key Research topics
• Research of flow features in a LPC and ICD for modelling, verification and understanding.
• Bleed flow, off-design studies
• Heat transfer in LPC, HEX and endwalls
• Boundary layer development downstream LPC
• Surface roughness and nonconformity effects