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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Flow system modeling with applications to fuel cell systems

Shaffer, Christian Edward. January 2005 (has links)
Thesis (M.S.)--West Virginia University, 2005. / Title from document title page. Document formatted into pages; contains xii, 111 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 100-102).

Cesium hydrogen sulphate and cesium dihydrogen phosphate based solid composite electrolyte for fuel cell application.

Naidoo, Sivapregasen January 2004 (has links)
No abstract available.

Transport limitations and water management in polymer electrolyte membrane (PEM) fuel cells /

Guvelioglu, Galip Hakan, January 2005 (has links)
Thesis (Ph. D.)--Lehigh University, 2005. / Includes bibliographical references and vita.

Preparation and characterisation of new materials for electrolytes used in Direct Methanol Fuel Cells

Felipe, Alfonso Martínez. January 2009 (has links)
Thesis (Ph.D.)--Aberdeen University, 2009. / Title from web page (viewed on Feb. 18, 2010). Includes bibliographical references.

Composite anodes for utilization of H₂ and methane fuels in intermediate-temperature solid oxide fuel cell : a thesis presented to the faculty of the Graduate School, Tennessee Technological University /

Lu, Xiaochuan. January 2008 (has links)
Thesis (Ph.D.)--Tennessee Technological University, 2008. / Bibliography: leaves 175-192.

Cesium hydrogen sulphate and cesium dihydrogen phosphate based solid composite electrolyte for fuel cell application.

Naidoo, Sivapregasen January 2004 (has links)
No abstract available.

Modelling catalyst layers in PEM fuel cells : effects of transport limitations and non-uniform platinum loading

Schwarz, David Hans. 10 April 2008 (has links)
No description available.

Investigation of a U-shaped fuel cell flow channel with particle image velocimetry (PIV)

Martin, Jonathan Jackie. 10 April 2008 (has links)
Flow through an experimental model of a U-shaped flow channel is used to investigate the hydrodynamic phenomena that occur within serpentine reactant transport channels of fuel cells. Achieving effective mixing within these channels is crucial for the proper operation of the fuel cell and proper understanding and characterization of the underlying fluid dynamics is required. Particle image velocimetry (PIV) is used to investigate the three-dimensional structure of the flow by analyzing the velocity and associated vorticity field over two perpendicular channel cross-sections. A range of Reynolds numbers, 109 I Re I 872, corresponding to flow rates encountered in a fuel cell operating at low to medium current densities is investigated. The effect of the flow rate is characterized in terms of the instantaneous and time-averaged representations of the velocity vectors, out-of-plane vorticity and the velocity streamlines. At the lowest Reynolds numbers, the flow is steady and is characterized by high vorticity regions associated with shear layers separating from the sharp convex comers of the U-bend and reattaching on downstream surfaces. The flow also exhibits the classical secondary Dean flow pattern with two symmetric circulation zones. Transition takes place in the range 381 I Re I 436 as the two recirculation zones, which originally develop in the U-bend region, merge into one separation region. This transition is accompanied by the generation of additional vortices in the secondary flow plane. The relationship between the flow in both planes and the transition is examined along with properties of the instability including RMS, Reynolds stress, and the oscillation frequency. The quantitative flow visualization results obtained presented here should be useful in guiding numerical models of fuel cells, and indicate that the commonly used assumption of steady laminar flow should be revisited, and alternative models developed.

Algorithm development for electrochemical impedance spectroscopy diagnostics in PEM fuel cells

Latham, Ruth Anne. 10 April 2008 (has links)
No description available.

A survey of current advances in fuel cell technology

White, Clifford Martin, 1924- January 1961 (has links)
No description available.

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