Modelación y simulacion de flujo en ebullicion con aplicaciones en refrigeración por absorción PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Modelación y simulacion de flujo en ebullicion con aplicaciones en refrigeración por absorción PDF full book. Access full book title Modelación y simulacion de flujo en ebullicion con aplicaciones en refrigeración por absorción by Manuel Francisco Torres Bravo. Download full books in PDF and EPUB format.
Author: Manuel Francisco Torres Bravo
Publisher:
ISBN:
Category :
Languages : es
Pages :
Get Book Here
Book Description
El ciclo de refrigeración por absorción-difusión no tiene partes móviles y funciona con calor. Se utiliza una bomba de burbujas para hacer circular el fluido. En el presente estudio se modela la bomba de burbujas del sistema de refrigeración por absorcióndifusión. Primero se realiza un modelo de flujo en ebullición de agua saturada, utilizando el modelo de dos fluidos. Este modelo se resuelve de manera numérica. Después, se investigan las capacidades de la dinámica de fluidos computacional para resolver este problema. Se realizan simulaciones con el programa Fluent, y se propone una función para realizar el cambio de fase. Aunque los resultados de las simulaciones no son definitivos: no se llega a un estado estable en el tiempo. Por lo que no se realiza la comparación con el modelo de flujo en ebullición de agua saturada. La bomba de burbujas se modela como flujo en ebullición de la mezcla de agua y amoniaco. Se realiza un modelo similar al modelo de flujo en ebullición de agua saturada. Al no encontrar resultados experimentales publicados en la literatura, se hace la comparación con un modelo analítico del ciclo de refrigeración por absorcióndifusión (Zohar et al. 2009). Se tiene una diferencia aproximada de 0.002 g/s al comparar el flujo de refrigerante a la salida de la bomba de burbujas para el caso de prueba que se utilizó. La tesis está organizada de la siguiente manera: en el primer capítulo se da una introducción al problema. Se describen los ciclos de refrigeración, y se explica el funcionamiento de la bomba de burbujas. Después se presenta el objetivo de la investigación y la forma en que se resolverá el problema.
Author: Manuel Francisco Torres Bravo
Publisher:
ISBN:
Category :
Languages : es
Pages :
Get Book Here
Book Description
El ciclo de refrigeración por absorción-difusión no tiene partes móviles y funciona con calor. Se utiliza una bomba de burbujas para hacer circular el fluido. En el presente estudio se modela la bomba de burbujas del sistema de refrigeración por absorcióndifusión. Primero se realiza un modelo de flujo en ebullición de agua saturada, utilizando el modelo de dos fluidos. Este modelo se resuelve de manera numérica. Después, se investigan las capacidades de la dinámica de fluidos computacional para resolver este problema. Se realizan simulaciones con el programa Fluent, y se propone una función para realizar el cambio de fase. Aunque los resultados de las simulaciones no son definitivos: no se llega a un estado estable en el tiempo. Por lo que no se realiza la comparación con el modelo de flujo en ebullición de agua saturada. La bomba de burbujas se modela como flujo en ebullición de la mezcla de agua y amoniaco. Se realiza un modelo similar al modelo de flujo en ebullición de agua saturada. Al no encontrar resultados experimentales publicados en la literatura, se hace la comparación con un modelo analítico del ciclo de refrigeración por absorcióndifusión (Zohar et al. 2009). Se tiene una diferencia aproximada de 0.002 g/s al comparar el flujo de refrigerante a la salida de la bomba de burbujas para el caso de prueba que se utilizó. La tesis está organizada de la siguiente manera: en el primer capítulo se da una introducción al problema. Se describen los ciclos de refrigeración, y se explica el funcionamiento de la bomba de burbujas. Después se presenta el objetivo de la investigación y la forma en que se resolverá el problema.
Author: Rayner M. Mayer
Publisher:
ISBN: 9780852989579
Category : Blades
Languages : en
Pages : 246
Get Book Here
Book Description
Author: Bruce E. Logan
Publisher: John Wiley & Sons
ISBN: 1118230078
Category : Science
Languages : en
Pages : 493
Get Book Here
Book Description
A unique approach to the challenges of complex environmental systems Environmental Transport Processes, Second Edition provides much-needed guidance on mass transfer principles in environmental engineering. It focuses on working with uncontrolled conditions involving biological and physical systems, offering examples from diverse fields, including mass transport, kinetics, wastewater treatment, and unit processes. This new edition is fully revised and updated, incorporating modern approaches and practice problems at the end of chapters, making the Second Edition more concise, accessible, and easy to use. The book discusses the fundamentals of transport processes occurring in natural environments, with special emphasis on working at the biological physical interface. It considers transport and kinetics in terms of systems that involve microorganisms, along with in-depth coverage of particles, size spectra, and calculations for particles that can be considered either spheres or fractals. The book's treatment of particles as fractals is especially unique and the Second Edition includes a new section on exoelectrogenic biofilms. It also addresses dispersion in natural and engineered systems unlike any other book on the subject. Readers will learn to tackle with confidence complex environmental systems and make transport calculations in heterogeneous environments with mixtures of chemicals.
Author: Piet Lens
Publisher: IWA Publishing
ISBN: 1843391007
Category : Science
Languages : en
Pages : 545
Get Book Here
Book Description
Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.
Author: S. Norris
Publisher: Geological Society of London
ISBN: 186239654X
Category : Science
Languages : en
Pages : 618
Get Book Here
Book Description
This Special Publication contains 43 scientific studies presented at the 5th conference on ‘Clays in natural and engineered barriers for radioactive waste confinement’ held in Montpellier, France in 2012. The conference and this resulting volume cover all the aspects of clay characterization and behaviour considered at various temporal and spatial scales relevant to the confinement of radionuclides in clay, from basic phenomenological process descriptions to the global understanding of performance and safety at repository and geological scales. Special emphasis has been given to the modelling of processes occurring at the mineralogical level within the clay barriers. The papers in this Special Publication consider research into argillaceous media under the following topic areas: large-scale geological characterization; clay-based concept/large-scale experiments; hydrodynamical modelling; geochemistry; geomechanics; mass transfer/gas transfer; mass transfer mechanisms. The collection of different topics presented in this Special Publication demonstrates the diversity of geological repository research.
Author: Tatsuki Ohji
Publisher: John Wiley & Sons
ISBN: 1119100402
Category : Technology & Engineering
Languages : en
Pages : 538
Get Book Here
Book Description
In this book project, all the American Ceramic Society's Engineering Ceramics Division Mueller and Bridge Building Award Winners, the ICACC Plenary Speakers and the past Engineering Ceramics Division Chairs have been invited to write book chapters on a topic that is compatible with their technical interests and consistent with the scope of the book, which is to focus on the current status and future prospects of various technical topics related to engineering ceramics, advanced ceramics and composite materials. Topics include: Mechanical Behavior and Performance of Ceramics & Composites Non-Destructive Evaluation and Mechanical Testing of Engineering Ceramics Brittle and Composite Material Design Modern Fracture Mechanics of Ceramics Thermal/Environmental Barrier Coatings Advanced Ceramic Coatings for Functional Applications Advanced Ceramic Joining Technologies Ceramics for Machining, Friction, Wear, and Other Tribological Applications Ceramic Composites for High-Temperature Aerospace Structures and Propulsion Systems Thermal Protection Materials: From Retrospect to Foresight Carbon/Carbon Composites Ceramic-Matrix Composites for Lightweight Construction Ultra High-Temperature Ceramics (UHTC) Nanolaminated Ternary Carbides and Nitrides (MAX Phases) Ceramics for Heat Engine and Other Energy Related Applications Solid Oxide Fuel Cells (SOFC) Armor Ceramics Next Generation Bioceramics Ceramics for Innovative Energy and Storage Systems Designing Ceramics for Electrochemical Energy Storage Devices Nanostructured Materials and Nanotechnology Advanced Ceramic Processing and Manufacturing Technologies Engineering Porous Ceramics Thermal Management Materials and Technologies Geopolymers Advanced Ceramic Sensor Technology Advanced Ceramics and Composites for Nuclear and Fusion Applications Advanced Ceramic Technologies for Rechargeable Batteries
Author: Shigley
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN: 9781510874671
Category :
Languages : en
Pages : 217
Get Book Here
Book Description
Author: Nandita Dasgupta
Publisher: Springer
ISBN: 3319987089
Category : Science
Languages : en
Pages : 298
Get Book Here
Book Description
This is the second volume on Environmental Nanotechnology. The first chapter discusses the synthesis of nanomaterial and mainly the green synthesis of inorganic nanomaterials. Furthermore, a comperative discussion about resistive and capacitive measurement of nano-based biosensor is reviewed and the efficient delivery of nutraceutical with the help of nano-vehicles are explained. Moreover, the book also includes reviews on such topics as nanopharmaceuticals, health benefits and the toxic impact of heavy metal nanomaterials and the impact of several nanomaterials on plant abiotic stress and have focussed on the long term impacts of nanomaterials on agroecosystems. The reader will also find presentations on molecularly imprinted polymeric nanocomposites, critical and comparative comments on Nano-biosensors and Nano-aptasensors and on applications of nanotechnology for the remediation and purification of water with a main focus on drinking water. The last chapter presents a comprehensive review on plasmonic nanoparticle based sensors whereby the authors have hypothesized the future applications in the environment which can be plausible in the near future.
