fpga fuel cell system controller design
Design and development of major balance of plant components in solid oxide fuel cell system
... afterburner, a fuel heat exchanger and an air heat exchanger As with any SOFC system, the performance of the INER SOFC system is dependent not only on the design and operating conditions of the fuel cell ... for power-generation systems with a high efficiency and low emissions is becoming an increasing concern Solid oxide fuel cells (SOFCs), which convert the chemical energy in fuels such as hydrogen, ... different input fuels, and therefore resolve many of the technical challenges associated with proton exchange membrane fuel cells (PEMFCs), which can use only hydrogen as the input fuel However,
Ngày tải lên: 05/09/2013, 16:10
Fuel Cell Formulary. This is a collection of relevant formulas, calculations and equations for designing a fuel cell system
... into the fuel cell system than is actually consumed, which establishes the relationship known as fuel cell stoichiometry, represented as λfuel = fuel feed / fuel consumed = H2 feed.The fuel efficiency ... etc.A fuel cell system (FCS) consists of essential components such as the fuel cell stack, air processing system—including a compressor and humidifier—fuel gas supply, and thermal management system ... in fuel cell systems and assessing their efficiencies For further details, refer to ASME PTC 50-2002 on Fuel Cell Power Systems Performance and DIN IEC 62282-3-2, which focuses on stationary fuel
Ngày tải lên: 01/10/2019, 09:47
adaptive sliding mode control of a pem fuel cell system based on the super twisting algorithm
... electrolyte and fuel used: phosphoric acid fuel cell (PAFC), molten carbonate fuel cell (MCFC), alkaline fuel cell (AFC), solid oxide fuel cell (SOFC), proton exchange membrane fuel cell (PEMFC), ... 34 Contents I Introduction 5 II PEM fuel cell system modeling 6 2.1 PEM fuel cell 6 2.2 System modeling 7 III Control design of the PEM fuel cell system 11 3.1 Sliding mode control approach ... 𝑖𝐿 R The output voltage of a fuel cell stack constitutes by 𝑁𝐹𝐶 fuel cells connected in series is given by: 𝑉𝑠𝑡= 𝑁𝐹𝐶𝑉𝑐𝑒𝑙𝑙 (12) 2.2 System modeling The PEM fuel cell system adopted in this study
Ngày tải lên: 11/06/2024, 22:02
Pem fuel cell stack modeling and design of DC DC converter for fuel cell energy system
... describe the fuel cell characteristics, fuel cell model seems to be aneffective way to simulate the fuel cell behavior Based on different fuel cell operatingmodes, different fuel cell behavior ... electrolyte used, fuel cells can be divided intofive types: PAFC (Phosphoric Acid Fuel Cell), AFC (Alkaline Fuel Cell), PEMFC(Proton Exchange Membrane Fuel Cell), MCFC (Molten Carbonate Fuel Cell) andSOFC ... How-ever fuel cells usually provide very low DC voltage A fuel cell voltage is usually less than 1V when drawing a useful current Even with fuel cell stacks (tens or hundreds of single fuel cells
Ngày tải lên: 14/09/2015, 14:09
Novel design of a compacted micro-structured air-breathing PEM fuel cell as a power source for mobile phones
... performance of air-breathing fuel cells However, these fuel cell designs have generally relied on traditional planar MEA architecture Because the majority of PEM fuel cell designs are based on planar ... the cell performance Such fuel cells have the potential to be significantly cheaper, smaller, and lighter than planar plate and frame fuel cells; they could also broaden the range of fuel cell ... future Small fuel cells have provided significant advantages in portable electronic applications over conventional battery systems However, the typical polymer electrolyte fuel cell system with
Ngày tải lên: 05/09/2013, 14:58
Novel design of a disk-shaped compacted micro-structured air-breathing PEM fuel cell
... performance of air-breathing fuel cells However, these fuel cell designs have generally relied on traditional planar MEA architecture Because the majority of PEM fuel cell designs are based on planar ... thickness of the cell (compacted-design) for increasing the volumetric power density of a fuel cell power supply A novel, simple to construct, air-breathing micro-structured PEM fuel cell which work ... future Small fuel cells have provided significant advantages in portable electronic applications over conventional battery systems However, the typical polymer electrolyte fuel cell system with
Ngày tải lên: 05/09/2013, 14:58
Analysis of transport phenomena and electrochemical reactions in a micro PEM fuel cell with nature inspired flow field design
... miniaturized fuel cell systems The majority of research on micro-scale fuel cells is aimed at micro-power applications Performance of micro-fuel cells are closely related to many factors, such as designs ... reserved Keywords: PEM fuel cells; Micro fuel cell; Nature inspired flow channels; Electrochemical; Heat transfer; CFD Introduction Fuel cell system is an advanced power system for the future ... of fuel cells, the introduction of cheaper materials and fabrication techniques, and the design and development of novel architectures The difficult experimental environment of fuel cell systems
Ngày tải lên: 09/09/2015, 10:17
A CFD study of hygro-thermal stresses distribution in tubular-shaped ambient air-breathing PEM micro fuel cell during regular cell operation
... in PEM fuel cell design is a tubular-shaped fuel cell Fuel cell companies and research institutes may have carried out various systematic experimental studies for this type of the fuel cell, for ... exchange membranes used in fuel cells is a major factor in the operating lifetime of fuel cell systems The stresses distribution in the fuel cells is affected by operating point (cell voltage and related ... 2, 2010, pp.183-198 Introduction Fuel cell system is an advanced power system for the future that is sustainable, clean and environmental friendly Small fuel cells have provided significant advantages
Ngày tải lên: 05/09/2013, 14:58
Modeling optimizes PEM fuel cell durability using threedimensional multi-phase computational fluid dynamics model
... proton exchange membrane (PEM) fuel cell are accelerated by mechanical stresses arising during fuel cell assembly (bolt assembling), and the stresses arise during fuel cell running, because it consists ... leading to a fuel cell durability under various operating conditions Optimization study of a PEM fuel cell durability has been performed To achieve long cell life, the results show that the cell must ... two-dimensional model of fuel cell with hardening for analysis of mechanical stresses in MEA arising in cell assembly procedure The model includes the main components of real fuel cell (membrane, gas
Ngày tải lên: 05/09/2013, 14:58
Mechanical behaviour of PEM fuel cell catalyst layers during regular cell operation
... maintaining a tolerance to fuel impurities in the reformate feed. An important part of the fuel cell is the electrolyte, which gives every fuel cell its name. At the core of a PEM fuel cell is the polymer ... a proton exchange membrane fuel cell are accelerated by mechanical stresses arising during fuel cell assembly (bolt assembling), and the stresses arise during fuel cell running, because it consists ... membranes used in fuel cells is a major factor in the operating lifetime of fuel cell systems. Figure 3 shows the total displacement distribution at the upper and lower surface of the cell membrane,
Ngày tải lên: 05/09/2013, 14:58
A CFD analysis on the effect of ambient conditions on the hygro-thermal stresses distribution in a planar ambient airbreathing PEM fuel cell
... stresses; Nafion Trang 21 Introduction Fuel cell system is an advanced power system for the future that is sustainable, clean and environmental friendly Small fuel cells have provided significant advantages ... battery systems Competitive costs, instant recharge, and high energy density make fuel cells ideal for supplanting batteries in portable electronic devices However, the typical PEM fuel cell system ... portable-power applications In air-breathing PEM fuel cell, the cathode side of the cell is directly open to ambient air The oxygen needed by the fuel cell electrochemical reaction is taken directly
Ngày tải lên: 05/09/2013, 14:58
Prediction of deformation and hygro-thermal stresses distribution in PEM fuel cell vehicle using threedimensional CFD model
... damage mechanisms in a PEM fuel cell are accelerated by mechanical stresses arising during fuel cell assembly (bolt assembling), and the stresses arise during fuel cell running, because it consists ... to simulate the stresses inside the PEM fuel cell, which are occurring during fuel cell assembly (bolt assembling), and the stresses arise during fuel cell running due to the changes of temperature ... leading to a fuel cell durability for vehicular applications Copyright © 2012 International Energy and Environment Foundation - All rights reserved Keywords: Fuel cell vehicles; PEM fuel cells, Durability,
Ngày tải lên: 05/09/2013, 14:58
A CFD analysis of transport phenomena and electrochemical reactions in a tubular-shaped PEM fuel cell
... design is a tubular-shaped fuel cell Fuel cell companies and research institutes may have carried out various systematic experimental studies for this type of the fuel cell, for different specific ... of fuel cells, the introduction of cheaper materials and fabrication techniques, and the design and development of novel architectures [2] The difficult experimental environment of fuel cell systems ... governing fuel cell behaviour Models that Trang 2include all parts of a fuel cell are typically two- or three-dimensional and reflect many of the physical processes occurring within the fuel cell
Ngày tải lên: 05/09/2013, 14:58
Performance optimization of a PEM hydrogen-oxygen fuel cell
... exchange membrane (PEM) fuel cells without extensive calculations A fuel cell mathematical module has been designed and constructed to determine the performance of a PEM fuel cell The influence of ... PEM fuel cell stacks and optimization of fuel cell system integration and operation Copyright © 2013 International Energy and Environment Foundation - All rights reserved Keywords: PEM fuel cells; ... of fuel cells without extensive calculations The present model can be used to investigate the influence of process variables for design optimization of fuel cells, stacks, and complete fuel cell
Ngày tải lên: 05/09/2013, 14:58
scientific american - 2002 10 - vehicle of change - how fuel - cell cars could revolutionize the world
... Early-Warning Defense System Terrorist Germs: An Early-Warning Defense System COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC Trang 2It’s not just about transportation: the transition to fuel-cell cars could ... establishment of a nationwide hy-drogen fuel distribution system costing hundreds of bil-lions of dollars will certainly be a daunting task Gen-So two cheers for the fuel-cell-car pioneers Butthis transformation ... affordable, practicalfuel-cell cars should not become an excuse to ignorewhat can and should be done more immediately If wewant car companies to design a greener future, then weneed a system of incentives
Ngày tải lên: 12/05/2014, 16:14
dry fuel cell manual
... each additional pairs of fuel cells to accommodate the output and input hoses from the Dry Fuel Cells to the bubbler tank Two pairs of Dry Fuel Cells (totaling 4 Dry Fuel Cells) can use two 30 amp ... single Dry Fuel Cell It is also possible to run multiple Dry Fuel Cells of 4 or more with 3/8 ID hose if you run them in pairs using the same configuration as seen in the dual (twin) Dry Fuel Cell ... EFFICIENT BUT WON'T IT VOID MY CAR WARRANTY? CLEANING THE DRY FUEL CELL MANUAL FOR DRY FUEL CELLS HHO Hydrogen Generator Dry Fuel Cell Installation Manual Instructions Presented by LaBella’s
Ngày tải lên: 28/05/2014, 14:19
fuel injection system
... injector on and off. Fuel Delivery System The purpose of the fuel delivery system is to quietly deliver the proper volume of fuel at the correct pressure. The fuel delivery system must also meet ... components are: • Fuel Pump. • Fuel Pump ECU. • Pressure Regulator. • Fuel Pressure Control Circuit. • Fuel Lines. • Fuel Tank. • Fuel Filter. • Pulsation Damper. • Fuel Injectors. • ... manifold. When the fuel pump is turned off by the ECM, a check valve in the fuel pump closes maintaining a residual pressure in the fuel system. Returnless Fuel Delivery System When the fuel pump is
Ngày tải lên: 28/05/2014, 14:24
cogeneration fuel cell-sorption air conditioning systems
... air conditioning system, 145 compression air conditioning system, 143 PEM fuel cell, 142 the systems, 141 Proton energy systems, 125 Proton exchange membrane fuel cell, 38 fuel cells, 131, 133, ... Electricity Use from Fuel Cells in Demonstration Projects 7.3.1 Stationary PAFC Cogeneration Systems 7.3.2 PEMFC in Mobile Systems 7.3.3 CHP Systems with Fuel Cells References ... cogeneration system (conformed by a PEM fuel cell and an absorption air conditioning system), actually there are some conditions in which the proposed system is more profitable than a PEM fuel cell and
Ngày tải lên: 30/05/2014, 23:06
Báo cáo hóa học: " Neurorehabilitation using the virtual reality based Rehabilitation Gaming System: methodology, design, psychometrics, usability and validation" pot
... Open Access Neurorehabilitation using the virtual reality based Rehabilitation Gaming System: methodology, design, psychometrics, usability and validation Mónica S Cameirão 1 , Sergi Bermúdez ... hold promise to address this issue. Here we describe a Virtual Reality (VR) based system, the Rehabilitation Gaming System (RGS) that is based on a number of hypotheses on the neuronal mechanisms ... the Rehabilitation Gaming System (RGS), a VR based n eurorehabilitation paradigm for the treat- ment of motor deficits resulting from lesions to the cen- tral nervous system that exploits the
Ngày tải lên: 19/06/2014, 08:20
Fuel Cell Micro Turbine Combined Cycle_1 potx
... for 180 kW Fuel Cell/Micro-Turbine Combined Cycle 46 Table 11 - Design Parameters for 180 kW Fuel Cell/Micro-Turbine Combined Cycle 46 Table 12 - Performance Summary for 180 kW Fuel Cell/Micro-Turbine ... PSOFC/MicroTurbine System 54 Trang 7List of Tables Table 1 - State Parameters for 700 kW Fuel Cell/Micro-Turbine Combined Cycle 6 Table 2 - Design Parameters for 700 kW Fuel Cell/Micro-Turbine ... turbine integration problems associated with hybrid fuel cell turbine systems By using a micro-turbine, and a non-pressurized fuel cell the total system size (kW) and complexity has been reduced
Ngày tải lên: 20/06/2014, 17:20