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Author: Karleine M. Justice Publisher: ISBN: Category : Fuel cells Languages : en Pages : 247
Book Description
Distributed generation is desired when the individual energy requirements ranging from 25-75 kW of office buildings, restaurants, hospitals and apartments can not be met by the current electric utility grid. Microturbine generators as stand alone power generation systems have been designed to meet these requirements. For power requirements up to 50 MW, hybrid fuel cell systems offer higher efficiency and lower levels of pollutant emissions with more advanced fuel energy savings than non-hybrid systems. The objective of this project is to develop a simulation of a microturbine generator as a stand alone power generation system to validate a microturbine generator as part of a hybrid power generation system designed to produce 250 kW of usable power in MATLAB/Simulink®. The stand alone power generation system will be modeled using a 1-Dimensional approach. The hybrid power generation system is modeled as three major sub-systems; a hybrid microturbine generator, a molten carbonate fuel cell with catalytic oxidizer, and a shell-and-tube heat exchanger. The hybrid power generation system will be analyzed by two different models; a 0-Dimensional hybrid model where all the components are 0-Dimensional and a 0-Dimensional model with 1-Dimensional zooming for the hybrid microturbine generator. The analysis of the stand alone system is used for validation of the hybrid system at the operating design point of the microturbine generator. A control system was placed on the hybrid microturbine generator power generation system and an analysis was completed on the temperature response of the 0-Dimensionl hybrid system as the microturbine generator power was ramped from 0-30 kW over six different time intervals. A second controller was placed on the fuel cell power generation system to further analyze the hybrid system’s controllability. The three MATLAB/Simulink® models developed provide an initial design methodology for modeling and simulation of a hybrid power generation system.
Author: Karleine M. Justice Publisher: ISBN: Category : Fuel cells Languages : en Pages : 247
Book Description
Distributed generation is desired when the individual energy requirements ranging from 25-75 kW of office buildings, restaurants, hospitals and apartments can not be met by the current electric utility grid. Microturbine generators as stand alone power generation systems have been designed to meet these requirements. For power requirements up to 50 MW, hybrid fuel cell systems offer higher efficiency and lower levels of pollutant emissions with more advanced fuel energy savings than non-hybrid systems. The objective of this project is to develop a simulation of a microturbine generator as a stand alone power generation system to validate a microturbine generator as part of a hybrid power generation system designed to produce 250 kW of usable power in MATLAB/Simulink®. The stand alone power generation system will be modeled using a 1-Dimensional approach. The hybrid power generation system is modeled as three major sub-systems; a hybrid microturbine generator, a molten carbonate fuel cell with catalytic oxidizer, and a shell-and-tube heat exchanger. The hybrid power generation system will be analyzed by two different models; a 0-Dimensional hybrid model where all the components are 0-Dimensional and a 0-Dimensional model with 1-Dimensional zooming for the hybrid microturbine generator. The analysis of the stand alone system is used for validation of the hybrid system at the operating design point of the microturbine generator. A control system was placed on the hybrid microturbine generator power generation system and an analysis was completed on the temperature response of the 0-Dimensionl hybrid system as the microturbine generator power was ramped from 0-30 kW over six different time intervals. A second controller was placed on the fuel cell power generation system to further analyze the hybrid system’s controllability. The three MATLAB/Simulink® models developed provide an initial design methodology for modeling and simulation of a hybrid power generation system.
Author: M. J. Moore Publisher: John Wiley & Sons ISBN: 9781860583919 Category : Technology & Engineering Languages : en Pages : 130
Book Description
In recent years, modern precision manufacturing techniques and design methods have substantially improved the performance of micro-turbine generators (MTG). Compared to conventional generators, micro-turbine power sources are much smaller and portable. Microturbine generators are also proving to be more efficient, easier to maintain, and more environmentally friendly with fewer emissions. Although power generators running on microturbines can use various types of energy sources, Micro-turbine Generators brings together a wide range of engineering experience to describe the emergence of micro-turbine technology, its viability and its future potential. COMPLETE CONTENTS: Foreword An introduction to micro-turbine generators Micro-turbine generators – next generation Analysis of micro- and mini-turbine competitive and supply markets in Europe Future potential developments of micro-turbine generators – hybrid cycles and tri-generation Design reliability of micro-turbines Field experience with micro-turbines in Canada Design problems in micro-turbine generators Tip-leakage flow: A comparison between axial and radial turbines
Author: Stephanie Hamilton Publisher: PennWell Books ISBN: Category : Technology & Engineering Languages : en Pages : 242
Book Description
The authors use a variety of photos to illustrate lessons, allowing readers to size up the structure or conditions depicted and answer questions based on their observations of the photos. The format includes true and false, multiple choice, fill in the blank, and scenario questions.
Author: Roxana Bekemohammadi Publisher: ISBN: 9781303485848 Category : Languages : en Pages : 178
Book Description
A steady-state molten carbonate fuel cell 0-D model was constructed in Aspen Plus℗ʼ. The model simulated the tri-generation of hydrogen, electricity, and heat using a Direct FuelCell℗ʼ molten carbonate fuel cell technology developed by FuelCell Energy. The simulation incorporated operating data from an actual installation. The internal reforming MCFC model was uniquely integrated with hydrogen concentrating and purifying equipment to facilitate tri-generation of hydrogen, electricity, and heat. A parametric study for the fuel utilization and recovered hydrogen were performed and presented. The tri-generation system performance was characterized for two different fuels, natural gas and anaerobic digester gas, and varying hydrogen recoveries. The optimal range for fuel utilization for each fuel at a particular hydrogen recovery percentage was found. The operating fuel utilization range at a current density of 1200 A/m2 for a thermally-balanced tri-generation MCFC system operating on NG was found to be: 0.90 for a hydrogen recovery of 90 percent; 0.87--0.90 for a hydrogen recovery of 80 percent; 0.81--0.90 for a hydrogen recovery of 70 percent; and 0.5--0.90 for a hydrogen recovery of 60 percent. The operating fuel utilization range at a current density of 1200 A/m2 for a thermally-balanced tri-generation MCFC system operating on ADG was found to be: 0.82--0.90 for a hydrogen recovery of 90 percent; 0.78--0.90 for a hydrogen recovery of 80 percent; 0.69--0.90 for a hydrogen recovery of 70 percent; and 0.5--0.90 for a hydrogen recovery of 60 percent.
Author: Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
The three-dimensional and dynamic performance of a molten carbonate fuel cell (MCFC) stack operating under load-following modes have been investigated by using dynamic simulation. The major processes with regard to an MCFC`s safe and efficient operation in power-generation systems, such as the mass and heat transport, chemical reactions and electrical power generation, are formulated in a three-dimensional, time-dependent form using the computational-fluid-dynamics (CFD) technique. The grid definitions have been explained, and a simple test to determine whether the simulation results being acceptable has been introduced. In this paper, the model performance is demonstrated by applying it to calculate the distributions of current density and temperature under a step change.
Author: Karleine M. Justice
Author: Karleine M. Justice
Author: M. J. Moore
Author: Masoud Yousef Ramandi
Author: Stephanie Hamilton
Author: Brian Wolf
Author: General Electric Company
Author: Wei He
Author: Roxana Bekemohammadi
Author: General Electric Company
Author: