Download or read book Proc d et dispositif de g n ration d hydrog ne par conversion haute temp rature avec vapeur d eau written by Philippe Marty and published by . This book was released on 2002 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail s'inscrit dans le cadre de la génération d'hydrogène par reformage non catalytique de combustibles, à haute température, en vue de l'alimentation d'une pile à combustible H2/02 de type PEM pour une application transport. Il constitue une alternative à l'utilisation de catalyseurs. Le reformage thermique proposé supprime les problèmes d'empoisonnement et de formation de coke liés aux systèmes catalytiques de reformage et permet dans le même temps de réaliser un système de reformage acceptant tous types de combustibles, sans avoir à adapter un catalyseur aux molécules de combustibles à reformer. La comparaison des différentes filières de production d'hydrogène (oxydation partielle, vapo-reformage et vapo-reformage autotherme) est effectuée à partir des contraintes imposées par la pile PEM et des résultats de calculs sur les réactions stoechiométriques. Elle aboutit au choix du vapo-reformage hybride (VRH), bien adapté aux caractéristiques de la pile PEM et permettant une optimisation énergétique du système constitué par le reformeur et la pile PEM. L'utilisation d'un modèle de cinétique chimique adapté au VRH du propane permet de déterminer les niveaux de température et les temps de séjour nécessaires pour réaliser la réaction de VRH sans catalyseur et pour éviter la persistance de méthane, d'hydrocarbures non méthaniques et d'hydrocarbures polycycliques aromatiques dans le mélange riche en hydrogène. A partir de ces résultats, une procédure de définition d'un reformeur non catalytique est donnée et est appliquée pour la conception d'une première maquette de VRH de propane. Les résultats expérimentaux obtenus sur une maquette (composition volumique, températures du reformat et des parois) sont présentés et comparés aux résultats des calculs effectués lors de la phase de conception.
Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.
Download or read book Analytical Methods in the Nuclear Fuel Cycle written by and published by . This book was released on 1972 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adhesion Between Polymers and Concrete Adh sion Entre Polym res Et B ton written by H. R. Sasse and published by Springer. This book was released on 1986 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.
Download or read book Use of Plutonium for Power Production written by and published by . This book was released on 1965 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Layer Silicates written by Sturges W. Bailey and published by . This book was released on 1967 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Response to Climatic Factors written by R. O. Slatyer and published by . This book was released on 1973 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Ecology written by Unesco and published by . This book was released on 1955 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Analysis Advances in instrumentation written by Hans G. Wiedemann and published by . This book was released on 1972 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microdosimetry written by Lennart Lindborg and published by CRC Press. This book was released on 2020-10-02 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental microdosimetry deals with the measurement of charged particle energy deposition in tissue equivalent volumes, ranging in size from nanometres to micrometres. Microdosimetry is employed to improve our understanding of the relationship between radiation energy deposition, the resulting biological effects, and the appropriate quantities to be used in characterizing and quantifying radiation quality. Although many reviews and contributions to the field have been published over the past fifty years, this new book is the first to provide a single, up to date, and easily accessible account of experimental microdosimetry. This book is designed to be used in medical, radiation, and health physics courses and by Master's and PhD students. In addition to serving as an introductory text to the field for graduate students, this book will also be of interest as a teaching and reference resource for graduate supervisors and established researchers. Drs. Lennart Lindborg and Anthony Waker have spent a life-time career in experimental microdosimetry research in academic, industrial and regulatory environments and have observed the development of the field from its early days as a recognized discipline; they bring to this book particular knowledge and experience in the design, construction, operation and use of tissue equivalent gas ionization counters and chambers.
Download or read book Thermal Analysis written by Hans Georg Wiedemann and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Problems of the Arid Zone written by Unesco and published by paris. This book was released on 1962 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanotechnology 2013 written by NSTI and published by CRC Press. This book was released on 2013-05-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NanoScience and Technology Institute (NSTI) nanotechnology conferences have built a tradition of being the most prestigious forum in the world for leading nano scientists, and Nanotech 2013 is no exception. Top nano scientists offer an up-to-date global perspective on the latest developments in nanotechnology. More than mere proceedings, these volumes cut across every scientific and engineering discipline to provide the most complete record of current accomplishments in nanotech. Volume 2 covers electronic devices, fabrication, MEMS, fluidics, and computation.
