Author: Roberto Carhuayo AraujoPublisher:
ISBN:
Category :
Languages : es
Pages :
Book Description
Diseño de un colector solar plano, utilizando tuberías de PVC, para el calentamiento de 105 litros de agua por convección natural
Author: Roberto Carhuayo AraujoEvaluación de modelos estático y dinámico, para colectores solares de aire de placas planas, en sistemas de convección natural
Author: Fernando Valentín Bolaño PachecoPublisher:
ISBN:
Category :
Languages : es
Pages :
Book Description
En este trabajo se evaluaron dos modelos matemáticos para simular el funcionamiento de un colector solar de aire de placas planas. El primer modelo se denominó estático y se caracteriza por no considerar los efectos del almacenamiento de calor, ni el flujo de calor por conducción en los elementos del sistema, para implementar este modelo, se planteó una sistemas de ecuaciones no lineales, resuelto de forma numérica a través del método de Newton, mientras que el segundo modelo denominado dinámico, que si considera dichos efectos, fue planteado y resuelto de forma explícita. Para la validación de los modelos, se construyó un colector solar de aire de placas planas, al que posteriormente le fue implementado un sistema de adquisición de datos, con el propósito de registrar parámetros de funcionamiento del colector, tales como: flujo de aire en el interior del colector, temperatura de la cubierta posterior del colector, datos ambientales locales, como: temperatura ambiental, radiación solar y velocidad de viento, medidos un día de verano entre las 8:00 y las 22:00 h, además de datos constructivos y propiedades de los materiales del colector. Para la evaluación de los modelos, se empleó como parámetro de comparación la temperatura de salida del aire y la eficiencia del colector, en específico, se comparó la información proporcionada por los modelos, con los datos experimentales de temperatura del fluido, registrados a la salida del colector y eficiencia experimental del sistema. La evaluación de los modelos, arrojó como resultado que el modelo de mejor desempeño es el dinámico con un valor de raíz del error cuadrado medio (RMSE) de 3,5 \U+00ba\C, para la temperatura de salida del fluido y de 3,8 %, para la eficiencia del colector, mientras que el modelo estático presentó un RMSE de 5,3 °C para la temperatura de salida del fluido y 4,5 % para la eficiencia.
Evaluación y comparación de dos diferentes tipos de colectores solares térmicos
Author: Carlos Raúl Riffo AgurtoPublisher:
ISBN:
Category :
Languages : es
Pages :
Book Description
En este trabajo se presenta la comparación de los resultados de un estudio de eficiencia en estado estacionario realizado a dos diferentes tipos de colectores solares térmicos siendo uno de placas planas y otro de tubos de vacío. Los resultados experimentales se reflejan en figuras, las cuales ilustran la eficiencia de ambos colectores solares a un mismo nivel de radiación. Se detallan las expresiones de cálculo de parámetros térmicos como F\U+2019\UL y F\U+2019\(ta), con valores de -7,87 Wm-2C-1 y 68 % para el colector solar plano y para el Heat pipe -3,01 Wm-2C-1 u un 53,1 % respectivamente. Estos parámetros térmicos dan una caracterización del comportamiento de los dos diferentes colectores solares térmicos y son útiles para el diseño y la caracterización de instalaciones solares de calentamiento de agua.
Water Reuse
Author: Metcalf & Eddy, Inc., an AECOM CompanyPublisher: McGraw Hill Professional
ISBN: 0071508775
Category : Technology & Engineering
Languages : en
Pages : 1610
Book Description
An Integrated Approach to Managing the World's Water Resources Water Reuse: Issues, Technologies, and Applications equips water/wastewater students, engineers, scientists, and professionals with a definitive account of the latest water reclamation, recycling, and reuse theory and practice. This landmark textbook presents an integrated approach to all aspects of water reuse _ from public health protection to water quality criteria and regulations to advanced technology to implementation issues. Filled with over 500 detailed illustrations and photographs, Water Reuse: Issues, Technology, and Applications features: In-depth coverage of cutting-edge water reclamation and reuse applications Current issues and developments in public health and environmental protection criteria, regulations, and risk management Review of current advanced treatment technologies, new developments, and practices Special emphasis on process reliability and multiple barrier concepts approach Consideration of satellite and decentralized water reuse facilities Consideration of planning and public participation of water reuse Inside This Landmark Water/Wastewater Management Tool • Water Reuse: An Introduction • Health and Environmental Concerns in Water Reuse • Technologies and Systems for Water Reclamation and Reuse • Water Reuse Applications • Implementing Water Reuse
Biological Wastewater Treatment
Author: Mogens HenzePublisher: IWA Publishing (International Water Assoc)
ISBN:
Category : Science
Languages : en
Pages : 170
Book Description
For information on the online course in Biological Wastewater Treatment from UNESCO-IHE, visit: http://www.iwapublishing.co.uk/books/biological-wastewater-treatment-online-course-principles-modeling-and-design Over the past twenty years, the knowledge and understanding of wastewater treatment have advanced extensively and moved away from empirically-based approaches to a first principles approach embracing chemistry, microbiology, physical and bioprocess engineering, and mathematics. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation with computers. For a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access is not readily available to advanced level tertiary education courses in wastewater treatment. Biological Wastewater Treatment addresses this deficiency. It assembles and integrates the postgraduate course material of a dozen or so professors from research groups around the world that have made significant contributions to the advances in wastewater treatment. The book forms part of an internet-based curriculum in biological wastewater treatment which also includes: Summarized lecture handouts of the topics covered in book Filmed lectures by the author professors Tutorial exercises for students self-learning Upon completion of this curriculum the modern approach of modelling and simulation to wastewater treatment plant design and operation, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks or biofilm systems, can be embraced with deeper insight, advanced knowledge and greater confidence.
The Green Studio Handbook
Author: Alison G KwokPublisher: Routledge
ISBN: 1317228634
Category : Architecture
Languages : en
Pages : 807
Book Description
The Green Studio Handbook remains an essential resource for design studios and professional practice. This extensive and user-friendly tool presents practical guidelines for the application of green strategies during the schematic design of buildings. Students and professionals can quickly get up to speed on system viability and sizing. Each of forty-three environmental strategies includes a brief description of principles and concepts, step-by-step guidance for integrating the strategy during the early stages of design, annotated tables and charts to assist with preliminary sizing, key issues to consider when implementing the strategy, and pointers to further resources. Ten new in-depth case studies illustrate diverse and successful green buildings integrated design projects and how the whole process comes together This third edition features updated tables and charts that will help to save energy, water, and material resources during the early stages of design. More than 500 sketches and full-color images illustrate how to successfully apply strategies. A glossary, a project index listing 105 buildings in 20 countries, updated tables and drawings, and I-P and SI units increase the usefulness of The Green Studio Handbook.
Water Reuse and Recycling
Author: Mark V. HughesPublisher:
ISBN:
Category : Sewage
Languages : en
Pages : 200
Book Description
Introduction to Architectural Science
Author: Steven V. SzokolayPublisher: Routledge
ISBN: 1317918592
Category : Architecture
Languages : en
Pages : 393
Book Description
Now in its third edition, this book provides the ideal and only reference to the physical basis of architectural design. Fully updated and expanded throughout, the book provides the data required for architects to design buildings that will maintain the users comfort in a variety of conditions, with minimal reliance on energy intensive methods like air conditioning. This is not a ‘how to’ book but answers the question why. It equips the reader with the tools to realize the full potential of the good intentions of sustainable, bioclimatic design. All sections have been revised and updated for this third edition including all the most relevant developments affecting heat, light and sound controls. The book responds to the need of understanding beyond ‘rules of thumb’.
Hotspots Revisited
Author: Russell A. MittermeierPublisher: Conservation International
ISBN: 9789686397772
Category : Nature
Languages : en
Pages : 0
Book Description
This book presents the results of the biodiversity hotspots - those discrete, biogeographic regions that are known to hold at least 1,500 plants as endemics and that have lost at least 70% of their primary native vegetation.
Heating, Cooling, Lighting
Author: Norbert LechnerPublisher: Wiley-Interscience
ISBN:
Category : Architecture
Languages : en
Pages : 552
Book Description
Using a qualitative rather than a quantitative approach, presents detailed information based on concepts, rules, guidelines, intuition, and experience for architects in the areas of heating, cooling, and lighting at the schematic design stage. The data explored supports a three-tiered approach--load avoidance, using natural energy sources, and mechanical equipment. Among the topics covered are shading, thermal envelope, passive heating and cooling, electric lighting, and HVAC. Case studies illustrate how certain buildings use techniques at all three tiers for heating, cooling, and lighting. An appendix lists some of the more appropriate computer programs available to the architect for analysis at the schematic design stage.