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Author: Nathan Wayne Rolander
Publisher:
ISBN:
Category : Decision support systems
Languages : en
Pages :
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Book Description
The complex turbulent flow regimes encountered in many thermal-fluid engineering applications have proven resistant to the effective application of systematic design because of the computational expense of model evaluation and the inherent variability of turbulent systems. In this thesis the integration of the Proper Orthogonal Decomposition (POD) for reduced order modeling of turbulent convection with the application of robust design principles is proposed as a practical design approach. The POD has been used successfully to create low dimensional steady state flow models within a prescribed range of parameters. The underlying foundation of robust design is to determine superior solutions to design problems by minimizing the effects of variation on system performance, without eliminating their causes. The integration of these constructs utilizing the compromise Decision Support Problem (DSP) results in an efficient, effective robust design approach for complex turbulent convective systems. The efficacy of the approach is illustrated through application to the configuration of data center server cabinets. Data centers are computing infrastructures that house large quantities of data processing equipment. The data processing equipment is stored in 2 m high enclosures known as cabinets. The demand for increased computational performance has led to very high power density cabinet design, with a single cabinet dissipating up to 20 kW. The computer servers are cooled by turbulent convection and have unsteady heat generation and cooling air flows, yielding substantial inherent variability, yet require some of the most stringent operational requirements of any engineering system. Through variation of the power load distribution and flow parameters, such as the rate of cooling air supplied, thermally efficient configurations that are insensitive to variations in operating conditions are determined. This robust design approach is applied to three common data center server cabinet designs, in increasing levels of modeling detail and complexity. Results of the application of this approach to the example problems studied show that the resulting thermally efficient configurations are capable of dissipating up to a 50% greater heat load and 15% decrease in the temperature variability using the same cooling infrastructure. These results are validated rigorously, including comparison of detailed CFD simulations with experimentally gathered temperature data of a mock server cabinet. Finally, with the approach validated, augmentations to the approach are considered for multi-scale design, extending approaches domain of applicability.
Author: Nathan Wayne Rolander
Publisher:
ISBN:
Category : Decision support systems
Languages : en
Pages :
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Book Description
The complex turbulent flow regimes encountered in many thermal-fluid engineering applications have proven resistant to the effective application of systematic design because of the computational expense of model evaluation and the inherent variability of turbulent systems. In this thesis the integration of the Proper Orthogonal Decomposition (POD) for reduced order modeling of turbulent convection with the application of robust design principles is proposed as a practical design approach. The POD has been used successfully to create low dimensional steady state flow models within a prescribed range of parameters. The underlying foundation of robust design is to determine superior solutions to design problems by minimizing the effects of variation on system performance, without eliminating their causes. The integration of these constructs utilizing the compromise Decision Support Problem (DSP) results in an efficient, effective robust design approach for complex turbulent convective systems. The efficacy of the approach is illustrated through application to the configuration of data center server cabinets. Data centers are computing infrastructures that house large quantities of data processing equipment. The data processing equipment is stored in 2 m high enclosures known as cabinets. The demand for increased computational performance has led to very high power density cabinet design, with a single cabinet dissipating up to 20 kW. The computer servers are cooled by turbulent convection and have unsteady heat generation and cooling air flows, yielding substantial inherent variability, yet require some of the most stringent operational requirements of any engineering system. Through variation of the power load distribution and flow parameters, such as the rate of cooling air supplied, thermally efficient configurations that are insensitive to variations in operating conditions are determined. This robust design approach is applied to three common data center server cabinet designs, in increasing levels of modeling detail and complexity. Results of the application of this approach to the example problems studied show that the resulting thermally efficient configurations are capable of dissipating up to a 50% greater heat load and 15% decrease in the temperature variability using the same cooling infrastructure. These results are validated rigorously, including comparison of detailed CFD simulations with experimentally gathered temperature data of a mock server cabinet. Finally, with the approach validated, augmentations to the approach are considered for multi-scale design, extending approaches domain of applicability.
Author: Yogendra Joshi
Publisher: Springer Science & Business Media
ISBN: 1441971246
Category : Science
Languages : en
Pages : 635
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Book Description
Energy Efficient Thermal Management of Data Centers examines energy flow in today's data centers. Particular focus is given to the state-of-the-art thermal management and thermal design approaches now being implemented across the multiple length scales involved. The impact of future trends in information technology hardware, and emerging software paradigms such as cloud computing and virtualization, on thermal management are also addressed. The book explores computational and experimental characterization approaches for determining temperature and air flow patterns within data centers. Thermodynamic analyses using the second law to improve energy efficiency are introduced and used in proposing improvements in cooling methodologies. Reduced-order modeling and robust multi-objective design of next generation data centers are discussed.
Author:
Publisher:
ISBN:
Category : Engineering design
Languages : en
Pages : 740
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Book Description
Author: Douglas Alger
Publisher: Cisco Press
ISBN: 9781587051821
Category : Computers
Languages : en
Pages : 0
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Book Description
A comprehensive guide to designing and operating reliable server environments Keep your data center cool, clean, scalable, and secure Learn the five principles of effective data center design Avoid the natural and man-made hazards that can jeopardize a data center site Learn how to lay out key infrastructure objects within the data center for greatest efficiency, from buffer zones to server rows Apply proven installation methods by studying sample illustrations of both overhead and under-floor systems Extract the best practices and design strategies for both in-room and standby electrical infrastructure Avoid accidental downtime, improve productivity, and ensure user safety Safeguard and streamline your network infrastructure with a well-organized physical hierarchy Understand the special challenges of retrofitting overburdened server environments Implement solutions from a wide array of sample illustrations and examples of essential data center signage Safeguard servers with operations standards for people working in or visiting the data center Download templates used by Cisco to design its data centers, customizable to square footage and geography Avoid excess construction costs by designing a data center that meets your needs today and for many years to come All data centers are unique, but they all share the same mission: to protect your company's valuable information. Build the Best Data Center Facility for Your Business answers your individual questions in one flexible step-by-step reference guide. Benefit from the author's concise and practical approach to data center design and management. The author distills this complex topic by sharing his first-hand and worldwide experience and expertise. Regardless of your experience level, you can fill your knowledge gaps on how to safeguard your company's valuable equipment and intellectual property. This easy-to-navigate book is divided into two parts: Part I covers data center design and physical infrastructure details, and Part II covers data center management and operations. You can also access supplementary online materials for installation instructions, which include customizable data center design templates, written cabling specifications, and sample drawings. If you need a starting point for designing your first data center, regardless of size; if you need to prepare yourself with comprehensive strategies to retrofit or improve an existing one; or if you need proven methods to manage a data center for maximum productivity this book is your readily accessible, comprehensive resource for answers and insights. Invest in the best future for your business by learning how to build and manage robust and productive data centers now. This book is part of the Networking Technology Series from Cisco Press which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.
Author: Scott D. Lowe
Publisher:
ISBN: 9781943952069
Category :
Languages : en
Pages :
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Book Description
Author: Hwaiyu Geng
Publisher: John Wiley & Sons
ISBN: 1118937570
Category : Computers
Languages : en
Pages : 720
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Book Description
Provides the fundamentals, technologies, and best practices in designing, constructing and managing mission critical, energy efficient data centers Organizations in need of high-speed connectivity and nonstop systems operations depend upon data centers for a range of deployment solutions. A data center is a facility used to house computer systems and associated components, such as telecommunications and storage systems. It generally includes multiple power sources, redundant data communications connections, environmental controls (e.g., air conditioning, fire suppression) and security devices. With contributions from an international list of experts, The Data Center Handbook instructs readers to: Prepare strategic plan that includes location plan, site selection, roadmap and capacity planning Design and build "green" data centers, with mission critical and energy-efficient infrastructure Apply best practices to reduce energy consumption and carbon emissions Apply IT technologies such as cloud and virtualization Manage data centers in order to sustain operations with minimum costs Prepare and practice disaster reovery and business continuity plan The book imparts essential knowledge needed to implement data center design and construction, apply IT technologies, and continually improve data center operations.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 76
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Book Description
Author: Peter M. Curtis
Publisher: John Wiley & Sons
ISBN: 1118041631
Category : Science
Languages : en
Pages : 512
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Book Description
This book is meant to offer Architects, Property Mangers, Facility Managers, Building Engineers, Information Technology Professionals, Data Center Personnel, Electrical & Mechanical Technicians and students in undergraduate, graduate, or continuing education programs relevant insight into the Mission Critical Environment with an emphasis on business resiliency, data center efficiency, and green power technology. Industry improvements, standards, and techniques have been incorporated into the text and address the latest issues prevalent in the Mission Critical Industry. An emphasis on green technologies and certifications is presented throughout the book. In addition, a description of the United States energy infrastructure's dependency on oil, in relation to energy security in the mission critical industry, is discussed. In conjunction with this, either a new chapter will be created on updated policies and regulations specifically related to the mission critical industry or updates to policies and regulations will be woven into most chapters. The topics addressed throughout this book include safety, fire protection, energy security and data center cooling, along with other common challenges and issues facing industry engineers today.
Author: Anil Leblebici
Publisher: Springer
ISBN: 3319991094
Category : Technology & Engineering
Languages : en
Pages : 227
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Book Description
This book presents the overall vision and research outcomes of Nano-Tera.ch, which is a landmark Swiss federal program to advance engineering system and device technologies with applications to Health and the Environment, including smart Energy generation and consumption. The authors discuss this unprecedented nation-wide program, with a lifetime of almost 10 years and a public funding of more than 120 MCHF, which helped to position Switzerland at the forefront of the research on multi-scale engineering of complex systems and networks, and strongly impacted the Swiss landscape in Engineering Sciences.
Author:
Publisher:
ISBN:
Category : Electronic packaging
Languages : en
Pages : 120
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Book Description
