Pem fuel cell is used for powering a hydrogenpowered car constructed by eamt aalborg energy. It produces electricity with fuel on the anode side and an oxidant on the cathode side, in the presence of an electrolyte. Proton exchange membrane fuel cell modeling and simulation. The idea for this thesis was to design a specification of requirements for a fuel cell system for the electric power production in a 77foot sailing ship named ts. A fuel cell power plant being supplied by plug power will help to test, and demonstrate the technical and economic viability of integrating baseload fuel cell power generation with onsite hydrogen production for vehicle refueling. The most common type, the hydrogen fuel cell, is based on the electrochemical reaction of hydrogen and oxygen.
However, dea operation presents several challenges for. A schema for a typical fuel cell wherein the electrolyte is a proton exchange membrane pem and. Anna stefanopoulou and huei peng fuel cell systems o. Gtsolid oxide fuel cell sofc systems for combined propulsion and power on aircraft offer a promising method for more efficient. Seventh edition fuel cell handbook technical report. Fuel cell stacks are devices of tremendous complexity and the overall thermal effect of electrochemical reactions in cells is heat production. Production of hydrogen platefin reformer catalyst can be a surface coating or a porous insert. Hydrogen fuel cell vehicles i acknowledgements above all, my thanks to univ. Dynamic modeling control fuel cell thesis srinivasan the gradual development of an organic self with the commonly fuel modeling dynamic control cell thesis srinivasan held beliefs about the organization and often make it difficult to deny their role is to open up. Microbial fuel cell mfc research is a rapidly evolving field that lacks established terminology and methods for the analysis of system performance. This thesis develops models for the design and control of deadended anode dea fuel cell systems. A porous media approach where used to reduce the number of cells and computational time. An introduction to fuel cells and hydrogen technology by brian cook, heliocentris vancouver, canada whereas the 19th century was the century of the steam engine and the 20th century was the century of the internal combustion engine, it is likely that the 21st century will be the century of the fuel cell. The typical value of the fuel cell voltage is about 0.
Fuel cells and biogas abstract this thesis concerns biogasoperated fuel cells. Electricity production in a microbial fuel cell fed. A fuel cell is similar to a battery as it operates on the electrochemical energy conversion principle but there is an important di. Pdf coupling of hydrogen production from the anaerobic fermentation of organic solid wastes with posttreatment of its spent extracts in. Alternative sources of energy an introduction to fuel cells.
Ultracapacitor boosted fuel cell hybrid vehicle a thesis bo. In this thesis, two numerical modeling methods are used to investigate the thermal conductivity of the polymer electrolyte membrane pem fuel cell gas diffusion layer gdl. Hydrogen fuelcell vehicles have evolved a lot, nowadays they can drive around 500 to 800 km on a full tank. The construction and analysis of mfcs requires knowledge of different scientific and engineering fields, ranging. Technoeconomic analysis of hydrogen fuel cell systems used. Improving and understanding direct methanol fuel cell. This makes it difficult for researchers to compare devices on an equivalent basis. The system model includes the fuel cell stack, humidifier, compressor, inlet and outlet manifolds, and cooling system. Modeling and analysis for control of reactant and water distributions in fuel cells by buz a.
Energy recovery from waste streams with microbial fuel cell mfcbased technologies phd thesis, the thesis will be available as a pdf file for downloading from the homepage of the department. In this thesis research, a comprehensive 3d model is developed which accounts. Thermal modeling and analysis of polymer electrolyte. An open cathode con guration supplies oxygen for the chemical reaction and removes excess heat due to irreversibilities. Technologies and applications the open fuel cells journal, 20, volume 6 the ove rall cell efficiency is between 37% and 42% however, if the heated watersteam generat ed by the. The topdrive project is a followup to the working project. Like other electrical devices, there are electrical resistances in the fuel cell. Numerical investigation of manifold flow distribution for. An advanced fuel cell simulator a thesis submitted. Modeling the effective thermal conductivity of an anisotropic. An advanced fuel cell simulator a thesis submitted to the. Solid oxide fuel cell thesis pdf for free essay writing worksheets. In this study a portable 3kw pem fuel cell system is modeled to understand the system dynamics.
Fuel cell technology may contribute to more efficient energy use, reduce emissions and also perhaps revolutionize current energy systems. We also compare the cost of fuel cell storage system to 8 other storage technologies for individual applications like rapid reserve and load shifting in section seven. This thesis is intended to be a foundation for the design and installation of a fuel cell system in ts prolific. Design and development of manufacturing methods for manufacturing of pem fuel cell meas by nikhil pramod kulkarni a thesis presented to the faculty of the graduate school of the missouri university of science and technology in partial fulfillment of the requirements for the degree master of science in mechanical engineering 2011 approved by. The work presented in this thesis describes a procedure for utilizing computer modeling to create high quality fuel cell simulations using ansys fluent 12. This study analyzes the contribution of all the heat sources traditionally involved in the thermal study of fuel cells, and determines simplifications. In a pem fuel cell, two halfcell reactions take place simultaneously, an oxidation reaction loss of electrons at the anode and a reduction reaction gain of electrons at the cathode. Technoeconomic analysis of hydrogen fuel cell systems. Seow 1998, however, considers process writing is there a relationship between enrollment in online elective courses and in departmental affairs, for the secondary solid oxide fuel cell thesis pdf school. This dissertation has been read by each member of the thesis committee and has been found to be satisfactory regarding content, english usage, format, citations, bibliographic. Technoeconomic analysis of hydrogen fuel cell systems used as an electricity storage technology in a wind farm with large amounts of. Pdf hightemperature polymer electrolyte membrane fuel cells. A thesis presented to the faculty of the graduate school of the missouri university of science and technology. Improving and understanding direct methanol fuel cell dmfc performance by alexandre hacquard a thesis submitted to the faculty of worcester polytechnic institute in partial fulfillment of the requirement for the degree of master of science in chemical engineering may 2005 approved dr.
Thesis lund university publications lunds universitet. The advantages of proton exchange membrane pem fuel cells include lower operating temperature than other fuel cells and size small enough to fit into a car. Thermal modeling and analysis of polymer electrolyte membrane. First, an analytical model is used to study the throughplane thermal conductivity from representative. To get higher voltage, multiple cells are stacked in series. A microbial fuel cell using biomineralized manganese oxides as a cathodic reactant by allison nicole rhoads a thesis submitted in partial fulfillment of the requirements for the degree of master of science in environmental engineering montana. Mtss is a web site about fuel cell scooters, in line with the masters thesis i carried out late 1999 at princeton college mechanical engineering department.
A parallelism can be seen between the research in the literature. Proton exchange membrane fuel cell modeling and simulation using ansys fluent by adam arvay a thesis presented in partial fulfillment of the requirements for the degree master of science in technology. However, fuel cells would also produce minimal emissions in the tail pipe, and furthermore might have the advantage of faster refueling. Improving and understanding direct methanol fuel cell dmfc. Advances in fuel cell vehicle design by jennifer bauman a thesis presented to the university of waterloo in fulfillment of the thesis requirement for the degree of. Advances in fuel cell vehicle design by jennifer bauman a thesis presented to the university of waterloo in fulfillment of the. This thesis will focus on a particular type of fuel cell, a variation of proton. Fuel cell operation with a deadended systems anode reduces fuel cell system cost, weight, and volume because the anode external humidi. Flow uniformity through the pem fuel cell stack is essential for obtaining high fuel cell e ciency. Hydrogen fuel cell vehicles are meant to be the alternative for all these cars on the. This thesis proposes a lowcost and an easytouse fuel cell simulator using a pro. Advances in fuel cell vehicle design university of waterloo. Numerical investigation of manifold flow distribution for a.
A threedimensional computational model of pem fuel cell. Other conditions worked with include cost estimation. Scaling up and optimization zheng ge abstract microbial fuel cells mfcs are potentially advantageous as an energyefficient approach to wastewater treatment. It has been accepted for inclusion in masters theses 1911 february 2014 by an.
The role of hydrogen and fuel cell for ultra low carbon vehicles ii acknowledgments this thesis is by far the most significant academic and personal accomplishment in my life. The development of these vehicles is increasing, but they still. I furthermore declare that take oath that i have done my bachelor thesis in. However, utc fuel cells has developed a 250 kw bus known as thunderpower and in 2005 published the system diagram in. While the microfluidic fuel cells developed here are targeted to eventual integration with biocatalysts, the contributions of this thesis have more general applicability. The software written for this thesis is attached to the pdf version of this the. Masters thesis for the degree of master of science in. Solid oxide fuel cell sofc is a promising alternative energy source, with its advantages of high operating efficiency, fuel flexibility, low emissions and relatively low cost. Masters thesis for the degree of master of science in technology. Little is known about the complex interfacial electrochemistry and, and it is also thermochemistry. In the1960s, international fuel cells in windsor connecticut developed a fuel cell power. The total stack voltage is the number of cells multiplied by the average cell voltage.
Fuel cell technology has been on the horizon since its successful implementation in the space programs of the 1950s, with business and technology pundits as far. The goal of this paper is to algorithmically synthesize a provablycorrect. This thesis investigated the current manifold design, with the help of computational uid dynamics cfd. Fuel cell based power generation has been proposed to be applied in transport and distributed energy supply. A fuel cell is a device that directly changes chemical energy derived from combining hydrogen and oxygen into electrical energy and produces heat and water as byproducts. Design and development of manufacturing methods for. Experimental studies suggest that nafion degradation is caused by generation of trace radical species such as oh, h when in the presence of h2, o2, and pt. A fuel cell is an energy conversion device which takes some form of fuel. However, there are several challenges concerning the sofc research.
The nafion membrane and cathode catalysts are two areas where pem fuel cells have issues of cost, durability, and efficiency. Wind photovoltaicfuel cell distributed generation systems by caisheng wang a dissertation submitted in partial fulfillment. Modeling and control of fuel cell systems and fuel processors by jay tawee pukrushpan cochairs. This thesis presents numerical simulations of reacting transport phenomena in poly mer electrolyte membrane pem fuel cells. Design of a fuel cell system design of a specification of requirements for a fuel cell system for the electric power generation in a 77foot sailing ship master of science thesis sebastian emanuelsson jonatan persson department of energy and environment division of electric power engineering chalmers university of technology. Effects of temperature and solvent activity on the. A durable fuel cell power system including hydrogen storage that achieves 60% energy efficiency when operating at peak power and that offers a 325 wkg power density and 220 wl operating on hydrogen. Energy recovery from waste streams with microbial fuel cell. An advanced fuel cell simulator a thesis by prabha ramchandra acharya submitted to the o.
Microfluidic fuel cell architectures are presented in this thesis. Bachelor thesis hydrogen fuel cell vehicles upcommons. Unlike 50 kw automobilesized fuel cell stacks, the vehicular 5 kw fuel cell needed here has not received much attention. Investigation of graphite bipolar plates for pem fuel cell. Design of a fuel cell system chalmers publication library. Mathematical modeling of transient transport phenomena in pem fuel cells by hao wu. The fuel cell works principally the same as a battery but it is used as a source, rather than storage.
Pemfcs also operate at low temperature which makes them quick to start up and easy to handle. Energyefficient wastewater treatment by microbial fuel. Degradations and improvements in pem fuel cell materials. Fuel cell energy thesis the bility to but are regarded as a category for overall quality, thus ensuring that the early childhood education ece, it is guided by theoretical sampling thesis fuel cell energy.
The results of the analysis are presented in a specification of. Uppermost, polymer electrolyte fuel cells, molten carbonate fuel cells, and solid oxide fuel cells have been demonstrated at commercial size in power plants. Pdf this dissertation introduces the issues of durability for hightemperature polymer electrolyte membrane fuel cells htpemfcs. A threedimensional computational model of pem fuel cell with serpentine gas channels by phong thanh nguyen b. Fuel cell is an electrochemical device that continuously converts the chemical energy of a fuel and oxidant into electrical energy and heat as long as the fuel and oxidant are supplied to the electrodes. Mathematical modeling of transient transport phenomena in. The technology is, however, still immature and has not yet been implemented as dominant in any application or niche market. Pem fuel cell performance eric kruszewski thesis submitted to the faculty of the virginia polytechnic institute and. Experiments and modeling of pem fuel cells for deadended. The fuel cell power plant will be connected to the fuel station, and to the local power grid. The operating temperatures of these different types of fuel cells. Progress continues in fuel cell technology since the previous edition of the fuel cell handbook was published in november 1998. With the basic understanding of mechanisms, experimentalists can make educated predictions of ways to improve fuel cell materials.
Model development is carried out by the mass and energy balances, thermodynamics and kinetics. Energyefficient wastewater treatment by microbial fuel cells. Within the thesis, i explored the potential of replacing the 2stroke engines broadly utilized in asian scooters with hydrogen fuel cell engines. The role of hydrogen and fuel cells for ultra low carbon vehicles. Proton exchange membrane fuel cells pemfcs run on pure hydrogen and oxygen or air, producing electricity, water, and some heat. Energy recovery from waste streams with microbial fuel. This work represents the mechanical and microfluidic portion of a microfluidic biofuel cell project. However, the most common fuel cell classification is by type of electrolyte. In this thesis, we employ phenomenological modeling and multivariable control techniques to provide fast and. A thesis in electrical engineering submitted to the graduate faculty of texas tech university in partial fulfillment of the requirements for the degree of master of science in electrical engineering approved august, 2002. The functioning of an individual fuel cell requires a continuous supply of feed gases or liquids and the removal of excess water and heat. The placement of the entire fuel cell system is intended to be above deck to minimize the risk of accidents. Theoretical and experimental study of solid oxide fuel. Need to match the heat release rate with the steam hydrocarbon reforming rate.
Modeling and analysis for control of reactant and water. Investigation of graphite bipolar plates for pem fuel cell performance eric kruszewski thesis submitted to the faculty of the virginia polytechnic institute and. A fuel cell is an electrochemical device which converts chemical energy from a variety of fuels into electrical energy. For singlechamber tubular mfcs, anode effluent is used as catholyte instead of tap water or buffer solutions. A computational study thesis by ted yu in partial fulfillment of the requirements for the degree of doctor of philosophy california institute of technology pasadena, california 2012 defended march 6, 2012. I hereby declare that this thesis is entirely the result of my own work except.