This week, NASA made strides in its Hybrid Thermally Efficient Core (HyTEC) project, announcing the conclusion of Phase 1, a pivotal three-year stage. The focus of this phase was the careful selection of component technologies aimed at shrinking the core size of the HyTEC concept engine. The next step, Phase 2, will see rigorous testing and demonstration of this core technology.
In partnership with industry leaders, NASA’s objective is clear: to pioneer hybrid-electric engines on a scale fit for airliners, boasting compact cores and significantly augmented bypass ratios. The ultimate aim of the project is a lofty 10% enhancement in fuel efficiency when compared to existing high-bypass turbofan engines. Achieving this necessitates a reduction in the size of core components like the high-pressure compressor (HPC), the combustor section, and the high-pressure turbine (HPT). This, in turn, demands the exploration of novel materials capable of withstanding elevated temperatures and advancements in aerodynamic performance within the core.
Accompanying the NASA announcement was an illustrative glimpse into the future, showcasing small-core components of the HyTEC integrated into GE’s developmental CFM RISE engine, slated for debut in 2030. The research team behind RISE sees the unducted open-fan configuration as the prime avenue for optimizing engine emissions while upholding peak performance standards.
Anthony Nerone, spearheading the HyTEC initiative at NASA’s Glenn Research Center in Cleveland, voiced the transition from Phase 1 to Phase 2, stating, “Phase 1 of HyTEC is winding down and we are ramping up Phase 2. This phase will culminate in a core demonstration test that proves the technology so it can transition to industry.” The HyTEC program stands as a vital component within NASA’s Sustainable Flight National Partnership, striving towards the realization of the next generation of ultra-efficient airliners.
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