Log in

Relevant bibliographies by topics / Squash rackets

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers

Academic literature on the topic 'Squash rackets'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Squash rackets.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Squash rackets"

1

Buxton, J. M. "The Physics of Squash Rackets." Physics Bulletin 37, no. 4 (April 1986): 159–61. http://dx.doi.org/10.1088/0031-9112/37/4/025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Locke, Simon. "Squash rackets: a review — deadly or safe?" Medical Journal of Australia 143, no. 12-13 (December 1985): 565–67. http://dx.doi.org/10.5694/j.1326-5377.1985.tb119952.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Kennerley-Bankes, J. L. "Squash rackets: a survey of eye injuries in England." BMJ 291, no. 6508 (November 30, 1985): 1539. http://dx.doi.org/10.1136/bmj.291.6508.1539.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Wright, M. B. "Probabilities and Decision Rules for the Game of Squash Rackets." Journal of the Operational Research Society 39, no. 1 (January 1988): 91. http://dx.doi.org/10.2307/2582002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Wright, M. B. "Probabilities and Decision Rules for the Game of Squash Rackets." Journal of the Operational Research Society 39, no. 1 (January 1988): 91–99. http://dx.doi.org/10.1057/jors.1988.11.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Wilson, J. F., and J. S. Davis. "Tennis Racket Shock Mitigation Experiments." Journal of Biomechanical Engineering 117, no. 4 (November 1, 1995): 479–84. http://dx.doi.org/10.1115/1.2794211.

Full text

Abstract:

Measured in this study was the effectiveness of two types of retrofits in mitigating shocks in tennis rackets with ideally high grip fixity. The retrofits were a cushioned grip tape and a string implant device. Three types of rackets were investigated: wood, graphite composite, and metal. For low speed ball impact, neither retrofit changed significantly the magnitude and distribution of e, the coefficient of restitution on the racket heads. For moderate ball speeds impacting the rackets along the vertical centerline, three dynamic racket responses were measured: the free vibration damping based on racket head acceleration, the root-mean-square (rms) grip reaction force, and the fast Fourier transform (FFT) of the grip force. These latter experiments showed that the string implant device had a negligible effect on the three dynamic measures of racket response. However, the cushioned grip tape increased racket damping by up to 100 percent, reduced the rms grip force by about 20 percent, and reduced the magnitude of the FFT of this force by about 40 percent.

APA, Harvard, Vancouver, ISO, and other styles

7

Chen, Yu-Fen, Chien-Hung Liu, Te-Hua Fang, Chen-Chih Huang, and Chi-Fan Liu. "DEVELOPMENT OF A LASER MEASUREMENT SYSTEM FOR FLATNESS AND THICKNESS OF THE RUBBER AND RACKET." Transactions of the Canadian Society for Mechanical Engineering 37, no. 3 (September 2013): 539–47. http://dx.doi.org/10.1139/tcsme-2013-0042.

Full text

Abstract:

This study analyzes the flatness of the commercial rackets measured by the modified S500 rubber thickness gauge mounted on a moving stage. A least square fitting method was used to calculate the racket flatness of these rackets. The experimental results showed the average flatness of all samples is 0.03 mm and the triple standard deviation is ±0.03 mm. The flatness of the rackets will lead to an in accurate examination of the rubber thickness before a match.

APA, Harvard, Vancouver, ISO, and other styles

8

Elliott, Bruce, Robert Marshall, and Guillermo Noffal. "The role of upper limb segment rotations in the development of racket‐head speed in the squash forehand." Journal of Sports Sciences 14, no. 2 (April 1996): 159–65. http://dx.doi.org/10.1080/02640419608727697.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Çetinkaya, Erkan. "Dominant Hand Usage in Racket Sports and Detection of the Injured Regions." Journal of Education and Training Studies 6, no. 12 (October 22, 2018): 130. http://dx.doi.org/10.11114/jets.v6i12.3709.

Full text

Abstract:

The aim of this study is to examine dominant hand usage and detect the injury regions in racket sports. A total of 98 athletes, of which 37 (37.8%) are female, 61 (62.2%) are male, studying at 11 different universities and attending competitions with schools teams with an average age of 21.11±1.66, height of 1.71±0.08 cm, weight of 64.92±10.85 kg, and BMI of 22.00±2.41(kg/m2) have participated in the study. When it comes to the distribution of the athletes by branches, the sample consists of 22 table tennis players, 24 badminton players, 25 tennis players and 27 squash players. The "Edinburgh Inventory Hand Preference Survey" was used as a data collection tool to determine the hand preferences of the athletes. In the determination of sports injuries suffered by athletes, the Cornell Musculoskeletal Discomfort Questionnaire was administered. There are significant differences between the lefty and righty athletes in terms of injuries in the left shoulder, left wrist and right lower leg regions when the injury regions in racket sports are compared by hand preferences (p<0.05). It is seen that the injuries that occur in right forearm, left wrist and the right upper leg regions of the athletes of racket sports differ according to branches (p<0.05). When the injury regions are examined according to hand preferences, it is seen that the injuries in the left shoulder, left wrist and lower right leg regions occur more in lefty athletes in comparison to righty athletes. When the relationship between the injury region regions and sports branches is examined, it can be argued that table tennis players suffer more frequent injuries in the left wrist compared to the players of other branches.

APA, Harvard, Vancouver, ISO, and other styles

10

Brumann, Christopher, Markus Kukuk, and Claus Reinsberger. "Evaluation of Open-Source and Pre-Trained Deep Convolutional Neural Networks Suitable for Player Detection and Motion Analysis in Squash." Sensors 21, no. 13 (July 2, 2021): 4550. http://dx.doi.org/10.3390/s21134550.

Full text

Abstract:

In sport science, athlete tracking and motion analysis are essential for monitoring and optimizing training programs, with the goal of increasing success in competition and preventing injury. At present, contact-free, camera-based, multi-athlete detection and tracking have become a reality, mainly due to the advances in machine learning regarding computer vision and, specifically, advances in artificial convolutional neural networks (CNN), used for human pose estimation (HPE-CNN) in image sequences. Sport science in general, as well as coaches and athletes in particular, would greatly benefit from HPE-CNN-based tracking, but the sheer amount of HPE-CNNs available, as well as their complexity, pose a hurdle to the adoption of this new technology. It is unclear how many HPE-CNNs which are available at present are ready to use in out-of-the-box inference to squash, to what extent they allow motion analysis and if detections can easily be used to provide insight to coaches and athletes. Therefore, we conducted a systematic investigation of more than 250 HPE-CNNs. After applying our selection criteria of open-source, pre-trained, state-of-the-art and ready-to-use, five variants of three HPE-CNNs remained, and were evaluated in the context of motion analysis for the racket sport of squash. Specifically, we are interested in detecting player’s feet in videos from a single camera and investigated the detection accuracy of all HPE-CNNs. To that end, we created a ground-truth dataset from publicly available squash videos by developing our own annotation tool and manually labeling frames and events. We present heatmaps, which depict the court floor using a color scale and highlight areas according to the relative time for which a player occupied that location during matchplay. These are used to provide insight into detections. Finally, we created a decision flow chart to help sport scientists, coaches and athletes to decide which HPE-CNN is best for player detection and tracking in a given application scenario.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Squash rackets"

1

Constantinides, Annie. "The validity, reliability and objectivity of a field test of squash fitness /." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63340.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Squash rackets"

1

Association, Squash Rackets. Squash Rackets Association annual. London: Pelham Books, 1985.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Hawkey, Dick. Squash. London: WardLock, 1988.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Khan, Jahangir. Advanced squash. London: Stanley Paul, 1990.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Association, Squash Rackets. The Squash Rackets Association annual. London: Squash Rackets Association, 1986.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Squash. London: Ward Lock, 1990.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

Squash. London: Ward Lock, 1998.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

Squash. London: Ward Lock, 1988.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

Hawkey, R. B. Squash. London: Blandford, 1994.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

Rahmat, Khan, and Eaton Richard, eds. Winning squash. London: S. Paul, 1985.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

Khan, Jahangir. Winning squash. London: Stanley Paul, 1985.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Book chapters on the topic "Squash rackets"

1

Easterling, K. E. "Tennis and squash rackets." In Advanced Materials for Sports Equipment, 79–93. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1556-8_5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

"From Squash Racquet to Racket Squasher." In Eunice Hunton Carter, 80–96. Fordham University Press, 2021. http://dx.doi.org/10.2307/j.ctv1hw3xjp.8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

"Type ‘A’ behaviour in squash." In Science and Racket Sports II, 179–85. Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203474617-29.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

"Physiological demands and fitness for squash." In Science and Racket Sports II, 21–31. Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203474617-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

"Physiological profiles of squash players of different standards." In Science and Racket Sports I, 88–91. Taylor & Francis, 2013. http://dx.doi.org/10.4324/9781315024752-20.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

"The psychological skills of Britain’s top young squash players." In Science and Racket Sports II, 186–91. Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203474617-30.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

"Fluid loss during international standard match-play in squash." In Science and Racket Sports II, 74–77. Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203474617-13.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

"Analysing championship squash match-play as a dynamical system." In Science and Racket Sports II, 239–44. Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203474617-40.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

"Maximum oxygen uptake in junior and senior elite squash players." In Science and Racket Sports II, 32–37. Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203474617-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

"The efficacy of training routines as a preparation for competitive squash." In Science and Racket Sports II, 109–14. Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203474617-19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Squash rackets"

1

Mulay, Veerendra, Saket Karajgikar, Dereje Agonafer, Roger Schmidt, and Madhusudan Iyengar. "Parametric Study of Hybrid Cooling Solution for Thermal Management of Data Centers." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43761.

Full text

Abstract:

The power trend for Server systems continues to grow thereby making thermal management of Data centers a very challenging task. Although various configurations exist, the raised floor plenum with Computer Room Air Conditioners (CRACs) providing cold air is a popular operating strategy. The air cooling of data center however, may not address the situation where more energy is expended in cooling infrastructure than the thermal load of data center. Revised power trend projections by ASHRAE TC 9.9 predict heat load as high as 5000W per square feet of compute servers’ equipment footprint by year 2010. These trend charts also indicate that heat load per product footprint has doubled for storage servers during 2000–2004. For the same period, heat load per product footprint for compute servers has tripled. Amongst the systems that are currently available and being shipped, many racks exceed 20kW. Such high heat loads have raised concerns over limits of air cooling of data centers similar to air cooling of microprocessors. A hybrid cooling strategy that incorporates liquid cooling along with air cooling can be very efficient in these situations. A parametric study of such solution is presented in this paper. A representative data center with 40 racks is modeled using commercially available CFD code. The variation in rack inlet temperature due to tile openings, underfloor plenum depths is reported.

APA, Harvard, Vancouver, ISO, and other styles

2

Samadiani, Emad, Yogendra Joshi, Hendrik Hamann, Madhusudan K. Iyengar, Steven Kamalsy, and James Lacey. "Reduced Order Thermal Modeling of Data Centers via Distributed Sensor Data." In ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASMEDC, 2009. http://dx.doi.org/10.1115/interpack2009-89187.

Full text

Abstract:

In this paper, an effective and computationally efficient Proper Orthogonal Decomposition (POD) based reduced order modeling approach is presented, which utilizes selected sets of observed thermal sensor data inside the data centers to help predict the data center temperature field as a function of the air flow rates of Computer Room Air Conditioning (CRAC) units. The approach is demonstrated through application to an operational data center of 102.2 m2 (1,100 square feet) with a hot and cold aisle arrangement of racks cooled by one CRAC unit. While the thermal data throughout the facility can be collected in about 30 minutes using a 3D temperature mapping tool, the POD method is able to generate temperature field throughout the data center in less than 2 seconds on a high end desktop PC. Comparing the obtained POD temperature fields with the experimentally measured data for two different values of CRAC flow rates shows that the method can predict the temperature field with the average error of 0.68 °C or 3.2%.

APA, Harvard, Vancouver, ISO, and other styles

3

Rambo, Jeffrey D., and Yogendra K. Joshi. "Multi-Scale Modeling of High Power Density Data Centers." In ASME 2003 International Electronic Packaging Technical Conference and Exhibition. ASMEDC, 2003. http://dx.doi.org/10.1115/ipack2003-35297.

Full text

Abstract:

Data center facilities, which house thousands of servers, storage devices and computing hardware, arranged in 2 meter high racks are providing many thermal challenges. Each rack can dissipate 10–15 kW, and with facilities as large as tens of thousands of square feet, the net power dissipated is typically on the order of several MW. The cost to power these facilities alone can be millions of dollars a year, with the cost to provide adequate cooling not far behind. Significant savings can be realized for the end user by improved design methodology of these high power density data centers. The fundamental need for improved characterization is motivated by inadequacies of simple energy balances to identify local ‘hot spots’ and ultimately provide a reliable modeling framework by which the data centers of the future can be designed. Recent attempts in computational fluid dynamics (CFD) modeling of data centers have been based around a simple rack model, either as a uniform heat generator or specified temperature rise across the rack. This desensitizes the solution to variations of heat load and corresponding flow rate needed to cool the servers throughout the rack. Heat generated at the smaller scales (the chip level) produces changes in the larger length scales of the data center. Accurate simulations of these facilities should attempt to resolve the range of length scales present. In this paper, a multi-scale model where each rack is subdivided into a series of sub-models to better mimic the behavior of individual servers inside the data center is proposed. A Reynolds-averaged Navier-Stokes CFD model of a 110 m2 (1,200 ft2) representative data center with the raised floor cooling scheme was constructed around this multi-scale rack model. Each of the 28 racks dissipated 4.23 kW, giving the data center a power density of 1076 W/m2 (100 W/ft2) based on total floor space. Parametric studies of varying heat loads within the rack and throughout the data center were performed to better characterize the interactions of the sub-rack scale heat generation and the data center. Major results include 1) the presence of a nonlinear thermal response in the upper portion of each rack due to recirculation effects and 2) significant changes in the surrounding racks (up to 10% increase in maximum temperature) observed in response to changes in rack flow rate (50% decrease).

APA, Harvard, Vancouver, ISO, and other styles

4

Mulay, Veerendra, Dereje Agonafer, and Roger Schmidt. "Liquid Cooling for Thermal Management of Data Centers." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68743.

Full text

Abstract:

The power trend for Server systems continues to grow thereby making thermal management of Data centers a very challenging task. Although various configurations exist, the raised floor plenum with Computer Room Air Conditioners (CRACs) providing cold air is a popular operating strategy. The air cooling of data center however, may not address the situation where more energy is expended in cooling infrastructure than the thermal load of data center. Revised power trend projections by ASHRAE TC 9.9 predict heat load as high as 5000W per square feet of compute servers’ equipment footprint by year 2010. These trend charts also indicate that heat load per product footprint has doubled for storage servers during 2000–2004. For the same period, heat load per product footprint for compute servers has tripled. Amongst the systems that are currently available and being shipped, many racks exceed 20kW. Such high heat loads have raised concerns over limits of air cooling of data centers similar to air cooling of microprocessors. Thermal management of such dense data center clusters using liquid cooling is presented.

APA, Harvard, Vancouver, ISO, and other styles

5

Kruger, Sunita, and Leon Pretorius. "The Effect of Vertical and Horizontal Partitions on Natural Convection in a Heated Enclosure." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17439.

Full text

Abstract:

In this paper, turbulent buoyancy induced convection in a partitioned square cavity with conducting baffles is numerically investigated to determine overall heat transfer performance. The finite volume method using polyhedral cells is used to solve the governing mass, momentum and energy equations and to predict the flow patterns and heat transfer in the cavity. The cavity consisted of two adiabatic vertical walls, an isothermal horizontal wall located at the bottom at Th and the top wall isothermal at Tc. The configuration was investigated for Ra = 9.1 × 107 to Ra = 1.9 × 109 (turbulent). The conducting baffles are assigned various values of effective thermal resistances, calculated using thermal conductivity. The effects of these conducting baffles and their effective thermal resistance are shown in terms of temperature and velocity contour plots and average Nusselt number. Results indicated that the presence of baffles influenced the heat transfer from the hot wall considerably, and it was concluded that a partitioned enclosure containing conducting partitions can be used to represent an enclosed greenhouse containing raised benches with single/multiple racks.

APA, Harvard, Vancouver, ISO, and other styles

6

Patel, Chandrakant, Ratnesh Sharma, Cullen Bash, and Sven Graupner. "Energy Aware Grid: Global Workload Placement Based on Energy Efficiency." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41443.

Full text

Abstract:

Computing will be pervasive, and enablers of pervasive computing will be data centers housing computing, networking and storage hardware. The data center of tomorrow is envisaged as one containing thousands of single board computing systems deployed in racks. A data center, with 1000 racks, over 30,000 square feet, would require 10 MW of power to power the computing infrastructure. At this power dissipation, an additional 5 MW would be needed by the cooling resources to remove the dissipated heat. At $100/MWh, the cooling alone would cost $4 million per annum for such a data center. The concept of Computing Grid, based on coordinated resource sharing and problem solving in dynamic, multi-institutional virtual organizations, is emerging as the new paradigm in distributed and pervasive computing for scientific as well as commercial applications. We envision a global network of data centers housing an aggregation of computing, networking and storage hardware. The increased compaction of such devices in data centers has created thermal and energy management issues that inhibit sustainability of such a global infrastructure. In this paper, we propose the framework of Energy Aware Grid that will provide a global utility infrastructure explicitly incorporating energy efficiency and thermal management among data centers. Designed around an energy-aware co-allocator, workload placement decisions will be made across the Grid, based on data center energy efficiency coefficients. The coefficient, evaluated by the data center’s resource allocation manager, is a complex function of the data center thermal management infrastructure and the seasonal and diurnal variations. A detailed procedure for implementation of a test case is provided with an estimate of energy savings to justify the economics. An example workload deployment shown in the paper aspires to seek the most energy efficient data center in the global network of data centers. The locality based energy efficiency in a data center is shown to arise from use of ground coupled loops in cold climates to lower ambient temperature for heat rejection e.g. computing and rejecting heat from a data center at nighttime ambient of 20°C. in New Delhi, India while Phoenix, USA is at 45°C. The efficiency in the cooling system in the data center in New Delhi is derived based on lower lift from evaporator to condenser. Besides the obvious advantage due to external ambient, the paper also incorporates techniques that rate the efficiency arising from internal thermo-fluids behavior of a data center in workload placement decision.

APA, Harvard, Vancouver, ISO, and other styles

7

Nemati, Kourosh, Husam Alissa, and Bahgat Sammakia. "Performance of Temperature Controlled Perimeter and Row-Based Cooling Systems in Open and Containment Environment." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52667.

Full text

Abstract:

The continuous increase of data center usage is leading the industry to increase the load density per square foot of existing facilities. High density (HD) IT load per rack demands bringing the cooling source closer to the heat load in contrast to room level air cooling. For high density racks, the use of in-row cooling systems is becoming increasingly popular. In-row cooling can be the main source of cooling for a data center or work jointly with perimeter cooling in what is called a hybrid cooled room level system. Also, hot or cold aisle containment can be integrated with perimeter cooling and used throughout the data center to reduce the mixing of hot and cold air. Currently, there has not been much work comparing the performance of in-row cooling in open versus contained environments. The present work builds on a previous study where the interaction of perimeter and row-based cooling was evaluated for a cold-aisle containment (CAC) environment. Previously, the benefit of using row-based cooled in an aisle has not been compared with an aisle in open conditions. Here, we numerically investigate the performance of in-row coolers in both opened and cold-aisle contained environments. Groups of IT equipment that differ in air flow strength are used to provide the heat load. Empirically measured flow curves for common IT equipment are employed to provide simplified models of the IT equipment in the CFD software used. The steady state analysis includes information provided in the manufacturer’s specifications such as heat exchanger performance characteristics. The model was validated using a new data center laboratory with perimeter cooling. A single aisle of the data center is modeled to reduce the computational time, and the results are generalized. The cold aisle contains 16 racks of IT equipment distributed on both sides. In addition, the aisle contains 2 power distribution units. Full details are incorporated in the computational model. A single Liebert® CW114 CRAC unit provides the perimeter cooling in the data center. The model captures the particular air flow behavior in the cold aisle when row-based cooling is utilized. Correlations are derived to predict the ability of air cooling units to maintain set points at different air flow rates. The effect of leakage is also considered.

APA, Harvard, Vancouver, ISO, and other styles

8

Mulay, Veerendra, Saket Karajgikar, Dereje Agonafer, Roger Schmidt, Madshusudan Iyengar, and Jay Nigen. "Computational Study of Hybrid Cooling Solution for Thermal Management of Data Centers." In ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ipack2007-33000.

Full text

Abstract:

The power trend for server systems continues to grow thereby making thermal management of data centers a very challenging task. Although various configurations exist, the raised floor plenum with Computer Room Air Conditioners (CRACs) providing cold air is a popular operating strategy. In prior work, numerous data center layouts employing raised floor plenum and the impact of design parameters such as plenum depth, ceiling height, cold isle location, tile openings and others on thermal performance of data center were presented. The air cooling of data center however, may not address the situation where more energy is expended in cooling infrastructure than the thermal load of data center. Revised power trend projections by ASHRAE TC 9.9 predict heat loads as high as 5000W per square feet of compute servers’ equipment footprint by year 2010. These trend charts also indicate that heat load per product footprint has doubled for storage servers during 2000–2004. For the same period, heat load per product footprint for compute servers has tripled. Amongst the systems that are currently available and being shipped, many racks exceed 20kW. Such high heat loads have raised concerns over air cooling limits of data centers similar to that of microprocessors. A hybrid cooling strategy that incorporates liquid cooling along with air cooling can be very efficient in such situations. The impact of such an operating strategy on thermal management of data center is discussed in this paper. A representative data center is modeled using commercially available CFD code. The change in rack temperature gradients, recirculation cells and CRAC demand due to use of hybrid cooling is presented in a detailed parametric study. It is shown that the hybrid cooling strategy improves the cooling of data center which may enable full population of rack and better management of system infrastructure.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!