Session: 03-04 H2 and NH3 in Aeroengines

Paper Number: 129283

129283 - Transient Modeling of an Aero-Engine Using Ammonia As a Fuel Carrier 

The aim of this paper is to reduce aviation emissions by transforming the fuel source by utilizing a turbofan engine powered by hydrogen derived from ammonia cracking. While sustainable aviation fuels (SAF) remain partially carbon-intensive, our primary focus centers on hydrogen and ammonia. Storing hydrogen necessitates extreme cryogenic conditions (-253°C) or pressurized tanks, making ammonia a more practical hydrogen carrier. While some studies have simulated continuous hydrogen use throughout a flight in a steady-state analysis, this paper concentrates on transient analysis. As airplanes changes phases, there should be a change to the injected fuel mass flow rate, and adjustments in bleed flow rates depending upon changes in required thrust along with the ambient conditions according to the flying altitude. The objective of transient analysis is to ascertain if the compressor's immediate fuel and stability requirements are met. To achieve this, transient analysis simulations are conducted using Simcenter Amesim, which offers a reduced-order model of gas turbine components that are customized to explore the gas turbine's transient behavior throughout an entire flight mission within a single simulation. In the baseline study, conventional Kerosene was used for take-off and cruise conditions, achieving a significant match and accuracy in both steady-state and transient analysis. In the latter part of this paper, the engine’s transient behavior is presented when ammonia-cracked hydrogen is employed.

Presenting Author: Kangana Patel University of central florida

Presenting Author Biography: I am a dedicated Graduate Research Assistant at the Center of Advanced Turbomachinery and Energy Research Lab (CATER), where I am actively engaged in research. Alongside my research responsibilities, I am currently pursuing a master's degree at the University of Central Florida in aerospace engineering(thermofluids track), building on the strong academic foundation I established during my undergraduate studies in aerospace engineering at UCF. Furthermore, I am enthusiastic about my future prospects, as I plan to commence a Ph.D. program in mechanical engineering in the coming year.

Authors:

Kangana Patel University of central florida
Vipul Goyal University of Central florida
Brandon Cotto University of central florida
Marcel Otto University of Central florida
Ladislav Vesely University of central florida
Jayanta Kapat University of Central florida
Mingxuan Shi The Boeing Company