Dynamic analysis of a micro CHP system based on flame fuel cells

2018 ◽  
Vol 163 ◽  
pp. 268-277 ◽  
Author(s):  
Yuqing Wang ◽  
Yixiang Shi ◽  
Yu Luo ◽  
Ningsheng Cai ◽  
Yabin Wang
Keyword(s):  
Fuel Cells ◽  
Dynamic Analysis ◽  
Chp System

Modeling Platform for a Micro-CHP System with SOFC Operating under Load Changes

2014 ◽  
Vol 607 ◽  
pp. 205-208 ◽  
Author(s):  
Jakub Kupecki
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Novel Approach ◽  
Technical Specifications ◽  
Chp System ◽  
Main Components ◽  
Partial Loads ◽  
Numerical Simulator

Paper presents a novel approach to modeling of a micro-combined heat and power (μ-CHP) unit with solid oxide fuel cells (SOFC). The proposed numerical simulator can be applied both to the analysis of a system operation in the design point and in off-design. Main components of the power system have been represented by dedicated sub-models, incorporated in the numerical simulator of a complete μ-CHP unit. The proposed modeling platform offers the possibility of analyzing system with different solid oxide fuel cells, its operation at partial loads and with various fuels. Components of the system can be modified, technical specifications can be adjusted in order to allow simulation of other components. The main equations for electrical and overall efficiency calculations are given and discussed.

Demonstration of a residential CHP system based on PEM fuel cells

2004 ◽  
Vol 131 (1-2) ◽  
pp. 62-68 ◽  
Author(s):  
G. Gigliucci ◽  
L. Petruzzi ◽  
E. Cerelli ◽  
A. Garzisi ◽  
A. La Mendola
Keyword(s):  
Fuel Cells ◽  
Pem Fuel Cells ◽  
Chp System

Design optimization of a SOFC-based CHP system through dynamic analysis

2013 ◽  
Vol 38 (1) ◽  
pp. 354-369 ◽  
Author(s):  
L. Barelli ◽  
G. Bidini ◽  
F. Gallorini ◽  
P.A. Ottaviano
Keyword(s):  
Dynamic Analysis ◽  
Design Optimization ◽  
Chp System

Fundamental thermodynamics of fuel cell, engine, and combined heat and power system efficiencies

2002 ◽  
Vol 216 (6) ◽  
pp. 407-417 ◽  
Author(s):  
F J Barclay
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Gas Turbines ◽  
Equilibrium Diagram ◽  
Equilibrium Constants ◽  
Calorific Value ◽  
Combined Heat And Power ◽  
Chemical Exergy ◽  
Chp System ◽  
The Right

At the 2001 Grove Symposium on Fuel Cells attended by representatives of the world-wide fuel cell industry, fuel cells and fuel cells integrated with gas turbines were discussed. Combined heat and power (CHP) aspects were also discussed. Without exception, efficiency figures were irrationally based on the measured, Carnot-limited, lower calorific value (CV) of the fuel in energy units J. The rational basis, on the other hand, is the fuel chemical exergy (work units, Ws) calculated via an equilibrium diagram. In Joules experiment 1 Ws ≫ 1 J, where the irreversible ≫ must not become an = sign. A misnomer like potential energy (exergy) fits on the left of the diagram, CV on the right. Moreover credence was also given, at the symposium, to the popular misconception that a CHP system has an efficiency of the order of 80 per cent. An essential precursor to reading the paper is to grasp the theory of chemical equilibrium and equilibrium constants [3] as an aid to exploring the equilibrium diagram mentioned above.

Dynamic analysis of a CCHP system based on fuel cells integrated with methanol-reforming and dehumidification for data centers

2022 ◽  
Vol 309 ◽  
pp. 118496
Author(s):  
Junjie Zhao ◽  
Huawei Chang ◽  
Xiaobing Luo ◽  
Zhengkai Tu ◽  
Siew Hwa Chan
Keyword(s):  
Fuel Cells ◽  
Dynamic Analysis ◽  
Data Centers ◽  
Methanol Reforming

Development of Intermediate-Temperature Solid Oxide Fuel Cells Using Doped Lanthanum Gallate Electrolyte

2009 ◽  
Vol 421-422 ◽  
pp. 340-343
Author(s):  
Hiroyuki Eto ◽  
Taner Akbay ◽  
Jun Akikusa ◽  
Gakuji Uozumi ◽  
Norihisa Chitose ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Output Power ◽  
High Efficiency ◽  
Combined Heat And Power ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Lanthanum Gallate ◽  
Oxide Fuel ◽  
Chp System

Intermediate-temperature(IT) solid oxide fuel cells(SOFCs) were developed using lanthanum gallate electrolyte, samarium cobaltite cathode and the cermet anode of nickel and ceria. High efficiency operation below 800°C was enabled using planar disk type cells with unique seal less stack design. The first 10 kW-class combined heat and power (CHP) system provided AC output power of 10 kW with electrical and overall efficiency of 41 and 82 %HHV, respectively. Optimization of cell-stack components to increase the output power density is in progress.

Integration of Novel Geometry Solid Oxide Fuel Cells Into a Residential Furnace/Boiler

2020 ◽  
Author(s):  
Alexander R. Hartwell ◽  
Jeongmin Ahn
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cells ◽  
Combustion Chamber ◽  
Power Distribution ◽  
Solid Oxide ◽  
Extreme Weather Events ◽  
Oxide Fuel ◽  
Potential Applications ◽  
Chp System

Abstract Increasing prevalence of extreme weather events and other climate related natural disasters is leading to the increased frequency of power outages. Resilient non-grid dependent power supply for residences is becoming increasingly desirable in order to maintain building management system operation during these events. One potential option for low-maintenance on-site power generation comes from the integration of solid oxide fuel cells (SOFCs) into the combustion chamber of a residential furnace/boiler yielding a combined heat and power (CHP) system. Fuel-rich combustion of natural gas or propane within furnaces/boilers provides the necessary heat as well as fuel for the SOFCs. As a result, the addition of fuel cells into this chamber is possible. The combustion chamber/heat exchanger geometry, however, introduces issues with existing fuel cell geometries that must be addressed before integration is possible. This work presents the development of novel anode supported tubular SOFCs with internal cathode and the study of their subsequent integration into a furnace/boiler including model exhaust tests as well as individual cell testing. The proposed system has tremendous potential to effect power distribution to residences, and the novel fuel cell designed in this project has many potential applications.

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