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Author: Anubhav Kumar Publisher: ISBN: Category : Cooling Languages : en Pages :
Book Description
Sharply increasing power dissipations in microprocessors and telecommunications systems have resulted in significant cooling challenges at the data center facility level. Energy efficient cooling of data centers has emerged as an area of increasing importance in electronics thermal management.
Author: Anubhav Kumar Publisher: ISBN: Category : Cooling Languages : en Pages :
Book Description
Sharply increasing power dissipations in microprocessors and telecommunications systems have resulted in significant cooling challenges at the data center facility level. Energy efficient cooling of data centers has emerged as an area of increasing importance in electronics thermal management.
Author: Yogendra Joshi Publisher: Springer Science & Business Media ISBN: 1441971246 Category : Science Languages : en Pages : 635
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: Jun Dai Publisher: Springer Science & Business Media ISBN: 1461456029 Category : Technology & Engineering Languages : en Pages : 196
Book Description
This book describes the use of free air cooling to improve the efficiency of, and cooling of, equipment for use in telecom infrastructures. Discussed at length is the cooling of communication installation rooms such as data centers or base stations, and this is intended as a valuable tool for the people designing and manufacturing key parts of communication networks. This book provides an introduction to current cooling methods used for energy reduction, and also compares present cooling methods in use in the field. The qualification methods and standard reliability assessments are reviewed, and their inability to assess the risks of free air cooling is discussed. The method of identifying the risks associated with free air cooling on equipment performance and reliability is introduced. A novel method of assessment for free air cooling is also proposed that utilizes prognostics and health management (PHM). This book also: Describes how the implementation of free air cooling can save energy for cooling within the telecommunications infrastructure. Analyzes the potential risks and failures of mechanisms possible in the implementation of free air cooling, which benefits manufacturers and equipment designers. Presents prognostics-based assessments to identify and mitigate the risks of telecommunications equipment under free air cooling conditions, which can provide the early warning of equipment failures at operation stage without disturbing the data centers' service. Optimum Cooling for Data Centers is an ideal book for researchers and engineers interested in designing and manufacturing equipment for use in telecom infrastructures.
Author: Kushal A. Aurangabadkar Publisher: ISBN: Category : Languages : en Pages :
Book Description
Nowadays with the increasing use of technology, Traditional data centers are being replaced by the highly efficient Containerized or Modular Data centers. The cooling systems and constructional cost employed for Traditional Data centers is more and inefficient. The research intricate, about 23% of the power is consumed by HVAC cooling units and which in turn leads to increase in operational costs. Hence in order to reduce the operational costs, free cooling with Air side economizer is incorporated, compared to other cooling systems. Airflow Distribution plays an important role in the Thermal management, if the airflow is less in quantity it may lead to unpredictable thermal performance, while too much airflow may cause the server fans to blow-off or damage to the servers. Numerous research and study has been done on the use of louvers as shading devices for residential purposes but the study on Impact of the louver orientation on Air Flow Distribution and Thermal Management is limited. The amount of airflow allowed to pass through louvered window is function of its face velocity. The Air-Flow pattern through the louvered window is determined by the louver orientation. These two factors directed us to do a study on the Impact of the Louvers orientation on the Air Flow Distribution and Thermal Management of Data center. The first half of the thesis will discuss design and modeling of IT equipment's including Power cooling module, Air Plenum, Data centers using commercially available CFD software. It would also segregate there Heat load specifications along with a brief overview of Free Cooling and importance of louvers. The CFD modeling and analysis will include the advantages of using a compact model instead of the detailed model. The second part will discuss effects on the thermal performance and Air Flow Distribution for 0, 15,25,35,45 Degree Louver angle cases. However on comparing the simulation results for different angle cases, we find with the increase in the Louver angle, re-circulations are incurred which in turn affects the Thermal management inside the IT equipment's. The system is optimized comparing different louver angles. The study was done in collaboration with an industrial partner and such of the results have been adopted in various cooling systems.
Author: Vaibhav K. Arghode Publisher: Springer ISBN: 3319258923 Category : Business & Economics Languages : en Pages : 90
Book Description
The Brief discuss primarily two aspects of air flow management in raised floor data centers. Firstly, cooling air delivery through perforated tiles will be examined and influence of the tile geometry on flow field development and hot air entrainment above perforated tiles will be discussed. Secondly, the use of cold aisle containment to physically separate hot and cold regions, and minimize hot and cold air mixing will be presented. Both experimental investigations and computational efforts are discussed and development of computational fluid dynamics (CFD) based models for simulating air flow in data centers is included. In addition, metrology tools for facility scale air velocity and temperature measurement, and air flow rate measurement through perforated floor tiles and server racks are examined and the authors present thermodynamics-based models to gauge the effectiveness and importance of air flow management schemes in data centers.
Author: Publisher: American Society of Heating Refrigerating and Air-Conditioning Engineers ISBN: 9781936504282 Category : Air conditioning Languages : en Pages : 0
Book Description
"Gives data center facility designers and manufacturers a clear understanding of their facilities' design needs and allows them to accurately predict the equipment loads their facilities will need to accommodate. Also includes air and liquid cooling options that may be considered"--
Author: J. Paul Guyer, P.E., R.A. Publisher: Guyer Partners ISBN: Category : Computers Languages : en Pages : 33
Book Description
Introductory technical guidance for mechanical and electrical engineers and construction managers interested in improved energy efficiency for electronic data centers. Here is what is discussed: 1. INTRODUCTION 2. INFORMATION TECHNOLOGY (IT) SYSTEMS 3. ENVIRONMENTAL CONDITIONS 4. AIR MANAGEMENT 5. COOLING SYSTEMS 6. ELECTRICAL SYSTEMS 7. OTHER OPPORTUNITIES FOR ENERGY-EFFICIENT DESIGN 8. DATA CENTER METRICS AND BENCHMARKING.
Author: Yogendra Joshi Publisher: Springer Science & Business Media ISBN: 1441971238 Category : Science Languages : en Pages : 635
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: Abhishek Guhe Publisher: ISBN: Category : Languages : en Pages : 60
Book Description
The skyrocketing growth in data centers, facilities that house information technology (IT) equipment for storage, management and distribution of data while striving for 24/7/365 operation with 100% up-time, has accounted for 1.3% of global energy use. A significant portion of data center energy is dedicated to removing the heat generated by IT equipment to maintain safe operating conditions and optimum computing performance. Energy efficient cooling of data center is of vital importance. One of the options for significantly cutting the cooling cost is the use of air side economization (ASE), Indirect evaporative cooling (IEC) and Direct evaporative cooling (DEC) without using expensive chilled-water systems or air-cooled CRAC units.The topology of a test bed modular data center (MDC) under consideration consists of an Information Technology (IT) module supported with a DEC and IEC module. MDC is a dynamic and complex environment with multiple mechanical and electrical control systems aimed at maintaining continuous operation of the data center. Highly nonlinear correlations, large number of constraints and multiple operating configurations make data center control a challenging research problem. In this study, a neural network model that adapts to the actual data center conditions using historical operating data and predicts the optimum configuration to reduce energy consumption is evaluated. In addition, the neural network model has the ability to learn from real time data collected from various data center sensors. When combined with a cooling unit, a predictive model that is fast and accurate in finding an optimal operating point for the modular data center unit can be implemented.In 2011, the Technical Committee (TC) 9.9 under American Society of Heating Refrigeration and Air-Conditioning Engineers (ASHRAE) expanded the operating envelope for data center thermal management in its Thermal guidelines for Data Processing environments, thus making it possible to operate IT equipment at higher server inlet temperatures and humidity and also switch to Indirect/Direct evaporative (I/DEC) and free cooling mode for increased number of hours per year. This study includes control strategies for operating I/DEC in tandem and also individually to achieve the target conditions for data center environment with minimum fluctuations in temperature and humidity. Staging of DEC for segmented cooling will provide flexibility in efficiently controlling temperature and humidity with significant water saving capability. Predictive cooling using weather forecast will counteract the start time delay of cooling modules avoiding ramping of unit due to unexpected weather conditions. The results show potential energy savings achievable through the proper implementation of control strategies and artificial neural network in operation of ASE, DEC and IEC of data center.
Author: Hwaiyu Geng Publisher: John Wiley & Sons ISBN: 1118937570 Category : Computers Languages : en Pages : 720
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: Anubhav Kumar
Author: Anubhav Kumar
Author: Yogendra Joshi
Author: Jun Dai
Author: Kushal A. Aurangabadkar
Author: Vaibhav K. Arghode
Author: 
Author: J. Paul Guyer, P.E., R.A.
Author: Yogendra Joshi
Author: Abhishek Guhe
Author: Hwaiyu Geng