Air Diffusion Dynamics
Author | : Ralph G. Nevins |
Publisher | : |
Total Pages | : 152 |
Release | : 1976 |
Genre | : Science |
ISBN | : |
Download Air Diffusion Dynamics Book in PDF, ePub and Kindle
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Air Diffusion Dynamics PDF full book. Access full book title Air Diffusion Dynamics.
Author | : Ralph G. Nevins |
Publisher | : |
Total Pages | : 152 |
Release | : 1976 |
Genre | : Science |
ISBN | : |
Author | : John D. Spengler |
Publisher | : McGraw Hill Professional |
Total Pages | : 1675 |
Release | : 2001-01-09 |
Genre | : Technology & Engineering |
ISBN | : 0071414843 |
* Tackles the complex environmental issue of Indoor Air Quality (IAQ) for industrial hygienists, HVAC engineers, architects and anyone else concerned with the air quality of interiors * Infused with charts, tables, and all the major formulas and calculations necessary to monitor and characterize a particular environment * Includes all relevant codes, standards and guidelines
Author | : H.B. Awbi |
Publisher | : Routledge |
Total Pages | : 537 |
Release | : 2004-06-02 |
Genre | : Architecture |
ISBN | : 1134489625 |
Hazim Awbi's Ventilation of Buildings has become established as the definitive text on the subject. This new, thoroughly revised, edition builds on the basic principles of the original text drawing in the results of considerable new research in the field. A new chapter on natural ventilation is also added and recent developments in ventilation concepts and room air distribution are also considered. The text is intended for the practitioner in the building services industry, the architect, the postgraduate student undertaking courses or research in HVAC, building services engineering, or building environmental engineering, and the undergraduate studying building services as a major subject. Readers are assumed to be familiar with the basic principles of fluid flow and heat transfer and some of the material requires more advanced knowledge of partial differential equations which describe the turbulent flow and heat transfer processes of fluids. The book is both a presentation of the practical issues that are needed for modern ventilation system design and a survey of recent developments in the subject
Author | : United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Development and Applications |
Publisher | : |
Total Pages | : 512 |
Release | : 1984 |
Genre | : Air |
ISBN | : |
Author | : Paul C. Fife |
Publisher | : SIAM |
Total Pages | : 99 |
Release | : 1988-01-01 |
Genre | : Technology & Engineering |
ISBN | : 9781611970180 |
Interfacial phenomena are commonplace in physics, chemistry, biology, and in various disciplines bridging these fields. They occur whenever a continuum is present which can exist in at least two different chemical or physical "states," and there is some mechanism which generates or enforces a spatial separation between these states. The separation boundary is then called an interface. In the examples studied here, the separation boundary, and its internal structure, result from the balance between two opposing tendencies: a diffusive effect which attempts to mix and smooth the properties of the material, and a physical or chemical mechanism which works to drive it to one or the other pure state. This volume is unique in that the treatment of flames, as well as internal layer dynamics "including curvature effects," is more detailed and systematic than in publications.
Author | : Smithsonian Science Information Exchange |
Publisher | : |
Total Pages | : 1472 |
Release | : 1972 |
Genre | : Environmental protection |
ISBN | : |
Author | : Kavita Gangisetti |
Publisher | : |
Total Pages | : |
Release | : 2011 |
Genre | : |
ISBN | : |
With the ever-increasing availability of high performance computing facilities, numerical simulation through Computational Fluid Dynamics (CFD) is increasingly used to predict the room air distribution. CFD is becoming an important design and analytical tool for investigating ventilation inside the system and thus to increase thermal comfort and improve indoor air quality. The room air supply diffuser flow rates can be reduced for less loading with the help of a variable air volume unit. The reduction in supply flow rate reduces the energy consumption for the unoccupied and reduced load conditions. The present research is to study the comfort consequences for reduced diffuser flow rates and loading and to identify the hot and cold spots inside a room. A small office room with ceiling based room air distribution method is considered for CFD analysis. The CFD results are validated with experimental measured data for the designed diffuser flow rate. A parametric study on different turbulence models, namely, low Reynolds number modification of standard k-epsilon model, re-normalization group k-epsilon model, transition k-kl-w model and Reynolds stress model is carried out, and simulation results in terms of velocity and temperature profiles are compared against the measured data. Other important parameters such as diffuser jet inlet angle and radiation effect are also considered on the benchmark case to validate the results and to recommend the best fit parameters for room air simulations. Analysis has been carried out for a range of flow rates and heat loads. The jet momentum, draft and temperature distribution inside the room are studied for the impact of reduced flow rates and loading. The thermal comfort is quantified in terms of vertical temperature distribution and percentage dissatisfied index. From the research it is found that, for the studied room setup and air distribution method, the diffuser flow rate can be reduced up to 30 percent of the design flow rate, without experiencing a considerable effect on the room air temperature distribution. Also, based on thermal comfort and room air temperature distribution, several recommendations for occupant spacing in a room are suggested for reduced diffuser flow rates.
Author | : Biao Huang |
Publisher | : John Wiley & Sons |
Total Pages | : 345 |
Release | : 2013-02-18 |
Genre | : Science |
ISBN | : 0470973919 |
The high temperature solid oxide fuel cell (SOFC) is identified as one of the leading fuel cell technology contenders to capture the energy market in years to come. However, in order to operate as an efficient energy generating system, the SOFC requires an appropriate control system which in turn requires a detailed modelling of process dynamics. Introducting state-of-the-art dynamic modelling, estimation, and control of SOFC systems, this book presents original modelling methods and brand new results as developed by the authors. With comprehensive coverage and bringing together many aspects of SOFC technology, it considers dynamic modelling through first-principles and data-based approaches, and considers all aspects of control, including modelling, system identification, state estimation, conventional and advanced control. Key features: Discusses both planar and tubular SOFC, and detailed and simplified dynamic modelling for SOFC Systematically describes single model and distributed models from cell level to system level Provides parameters for all models developed for easy reference and reproducing of the results All theories are illustrated through vivid fuel cell application examples, such as state-of-the-art unscented Kalman filter, model predictive control, and system identification techniques to SOFC systems The tutorial approach makes it perfect for learning the fundamentals of chemical engineering, system identification, state estimation and process control. It is suitable for graduate students in chemical, mechanical, power, and electrical engineering, especially those in process control, process systems engineering, control systems, or fuel cells. It will also aid researchers who need a reminder of the basics as well as an overview of current techniques in the dynamic modelling and control of SOFC.
Author | : Fariborz Haghighat |
Publisher | : EOLSS Publications |
Total Pages | : 490 |
Release | : 2009-11-10 |
Genre | : |
ISBN | : 1848260601 |
Sustainable Built Environment is a component of Encyclopedia of Technology, Information, and Systems Management Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Environmental conservation and technological innovation are two principal forces that drive the building industry toward the future. Technological innovation offers many opportunities to make buildings more dynamic and comfortable, and occupants more comfortable and productive. The necessity of environmental conservation, on the other hand, compels all types of developments and human activities to be environmentally responsive. The content of the Theme on Sustainable Built Environment is organized with state-of-the-art presentations covering several topics: Urban Design ; Emerging Issues in Building Design; Environment, Energy and Health in Housing Design; Culture, Management Strategies, and Policy Issues in the Sustainable Built Environment; Using Technology to Improve the Quality of City Life; Urban and Regional Transportation, which are then expanded into multiple subtopics, each as a chapter. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.
Author | : A. L. Kuhl |
Publisher | : AIAA |
Total Pages | : 516 |
Release | : 1993 |
Genre | : Detonation waves |
ISBN | : 9781600864070 |