Diurnal Temperature and Pressure Effects on Axial Turbomachinery Stability in Solid Oxide Fuel Cell-Gas Turbine Hybrid Systems

  title={Diurnal Temperature and Pressure Effects on Axial Turbomachinery Stability in Solid Oxide Fuel Cell-Gas Turbine Hybrid Systems},
  author={James D. Maclay and Jacob Brouwer and G Scott Samuelsen},
A dynamic model of a 100 MW solid oxide fuel cell-gas turbine hybrid system has been developed and subjected to perturbations in diurnal ambient temperature and pressure as well as load sheds. The dynamic system responses monitored were the fuel cell electrolyte temperature, gas turbine shaft speed, turbine inlet temperature, and compressor surge. Using a control strategy that primarily focuses on holding fuel cell electrolyte temperature constant and secondarily on maintaining gas turbine… 
Cyber-Physical Simulation for Virtual Characterization of SOFC Thermomechanical Response Within Hybrid Fuel-Cell/Gas Turbines
Solid-oxide fuel-cell (SOFC)/gas-turbine hybrid systems possess the capacity for unprecedented performances, such as electric efficiencies nearly twice that of conventional heat engines at variable


Dynamic Simulation of a Pressurized 220kW Solid Oxide Fuel-Cell–Gas-Turbine Hybrid System: Modeled Performance Compared to Measured Results
R. A. Roberts J. Brouwer e-mail: jb@nfcrc.uci.edu National Fuel Cell Research Center, University California, Irvine, Irvine, CA 92697-3550 Dynamic Simulation of a Pressurized 220 kW Solid Oxide
Dynamic simulation of carbonate fuel cell-gas turbine hybrid systems
Hybrid fuel cell/gas turbine systems provide an efficient means of producing electricity from fossil fuels with ultra low emissions. However, there are many significant challenges involved in
Control Design for a Bottoming Solid Oxide Fuel Cell Gas Turbine Hybrid System
A bottoming 275 kilowatt planar solid oxide fuel cell (SOFC) gas turbine (GT) hybrid system control approach has been conceptualized and designed. Based on previously published modeling techniques, a
The design of stationary and mobile solid oxide fuel cell–gas turbine systems
Gas Turbine Assessment for Air Management of Pressurized SOFC/GT Hybrid Systems
This paper analyzes and compares transient and steady-state performance characteristics of different types of single-shaft turbo-machinery for controlling the air through a pressurized solid oxide
Analysis Strategies for Tubular Solid Oxide Fuel Cell Based Hybrid Systems
The emergence of fuel cell systems and hybrid fuel cell systems requires the evolution of analysis strategies for evaluating thermodynamic performance and directing design and development. A