Heat Source Analysis of Hard Disk Drives with Different Wall Conditions using Infrared System
Eddie Yin-Kwee Ng, Wan Kee Ng, Shaoyong Liu
DOI: 10.4236/eng.2011.31003   PDF    HTML   XML   6,648 Downloads   12,458 Views   Citations


Increasing performance parameters of hard disk drive (HDD) such as higher capacity and faster data access speed with decreasing physical size make HDD more susceptible to thermal effects. Contact temperature measurement using thermocouple is not suitable for the rotating platter of HDD. Heat analysis using simulation software requires accurate initial parameter setting such as thermal (initial & boundary) conditions of certain regions. Temperature measurement using infrared (IR) system avoids these limitations; it is non-contact, responsive and does not require initial parameter setting. Thermal pattern distribution can be studied from the thermal images. However, emissivity of the target has to be known and calibration of the system is essential for accurate temperature reading. This paper showed that temperature within the HDD increases with ambient temperature and time, but the thermal distribution pattern in the HDD was not affected by different ambient temperatures. Three wall boundary conditions were conducted to study the thermal distribution pattern in the HDD. A solution was then proposed based on the results obtained from the experiments to improve the heat transfer rate and steady state temperature, and reduce the detrimental effects from high thermal generation in future prototypes. Another important finding was that the averaged temperature of the head cap was generally higher compared to that of the disk, as the spindle motor is the primary heat source within the HDD. Heat source analysis of HDD with IR system allows designers to have better visibility of the temperature generated in different components of the HDD. Proper cooling may enhance disk life as well as ensure the stability and integrity of the system.

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E. Ng, W. Ng and S. Liu, "Heat Source Analysis of Hard Disk Drives with Different Wall Conditions using Infrared System," Engineering, Vol. 3 No. 1, 2011, pp. 22-31. doi: 10.4236/eng.2011.31003.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Matthew Elliott, “Seagate Product Press Release,” accessed 10 June. http:// news.cnet.com/8301-17938_105- 9987407-1.html
[2] Seagate Technology LLC, “Seagate Datasheet Cheetah 15k.5,” accessed 10 August. http://www.seagate.com/ docs/pdf/datasheet/disc/ds_cheetah_15k_5.pdf
[3] P. A. Eibeck and D. J. Cohen, “Modeling Thermal Characteristics of a Fixed Disk Drive,” IEEE Transaction on Components, Hybrids and Manufacturing Technology, Vol. 11, No. 4, December1998, pp. 566-570.
[4] Charles M. Kozierok, “HDD Head Actuator,” accessed 10 August. http://www.pcguide.com/ref/fdd/constActua- tor-c. html
[5] N. J. Clauss, “A Computational Model of the Thermal Expansions within a Fixed Disk Drive Storage System,” M.S. Thesis, University of California, Berkeley, 1988.
[6] S. H. Kim, “The Reduction of Air-Borne Noise in Hard Disk Drive,” Asia Pacific Magnetic Recording Conference, Tokyo, 2000.
[7] M. Kurita, J. Xu, M. Tokuyama, S. Seagusa, Y. Maruyama and H. Fukui, “Simulation of Thermal Protrusion on Magnetic Head Element,” JSME International Journal, Series C, Vol. 48, No. 3, 2005, pp. 359-362. doi:10.1299/ jsmec.48.359
[8] S. Gurumurthi, Y. Kim and A. Sivasubramaniam, “Using STEAM for Thermal Simulation for Thermal Simulation of Storage System,” IEEE Micro Computer Society, Com- puter Architecture Simulation and Modeling, 2006, pp. 43-51.
[9] P. S. Goh, “Numerical Simulations of Thermal Effects in Computer HDDs,” Final Year Project Report, School of Mechanical & Aerospace Engineering, Nanyang Technological University, Singapore, 2006.
[10] F. P. Incropera and D. P. DeWitt, “Fundamentals of Heat and Mass Transfer,” John Wiley & Sons, Hoboken.
[11] J. Merchant, “Infrared Temperature Measurement Theory and Application,” Mikron Instrument Company Inc., (private communication).
[12] Omega Engineering Inc., accessed 10 August, http://www. omega.com/
[13] K. D. Gruner, “Principles of Non-Contact Temperature Measurement,” 10 August. http://www.raytek.com/Ray- tek/en-r0/IREducation/Principlesof+IR.htm
[14] E. Y. K. Ng, D. H. M. Lim and F. Gao, “Monitoring and Characterising of Hard Disk Drive Thermal Sources,” Heat Transfer Engineering Journal, Vol. 30, No. 8, 2008, pp. 649-660. doi:10.1080/01457630802659920
[15] Jenoptik and Jena, “Determining Emissivity Using an Infrared Imaging Radiome-ter,” accessed 10 August. http://www. ircame-ras.com/emissivitydisc.html
[16] Y. Kim, S. Gurumurthi and A. Sivasubramaniam, “Understanding the Perfor-mance-Temperature Interactions in Disk I/O of Server Work-loads,” Proceedings of the International Symposium on High Performance Computer Architecture (HPCA), Austin, 2006, pp. 179-189.
[17] LAND Instruments International, “Temperature Measurement with Infrared Thermometers,” accessed 10 August. http://www.landinst.com/infrared/downloads/pdf/ temper-ature_measurement_radiation_ thermometers.pdf
[18] E. Y. K. Ng and Z. Y. Liu, “Prediction of Unobstructed Flow for Co-Rotating Multi-Disk Drive in an Enclosure,” International Journal for Numerical Methods in Fluids, Vol. 35, No. 5, March 2001, pp. 519-531. doi:10.1002/ 1097-0363(20010315)35:5<519::AID-FLD98>3.0.CO;2- F
[19] N. Saniel, E. Erturan and A. Olcay, “Heat Transfer Augmentation of a Co-Rotating Disk Assembly with Special Emphasis on the Lower Disk,” Heat Transfer Engineering, Vol. 25, No. 4, 2004, pp. 80-89. doi:10.1080/014576 30490443811
[20] M. A. Suriadi, C. S. Tan, Q. D. Zhang, T. H. Yip and K. Sundaravadivelu, “Numerical Investigation of Airflow Inside a 1-in Hard Disk Drive,” Journal of Magnetism and Magnetic Materials, Vol. 303, No. 2, 2006, pp. e124-e127. doi:10.1016/j.jmmm.2006.01.212
[21] G. H. Jang, S. J. Park and S. H. Lee, “Electromechanical Analysis of a HDB Spindle Motor,” IEEE Transactions on Magnetics, Vol. 41, No. 5, 2005, pp. 1608-1611. doi:10.1109/TMAG.2005.845020
[22] J. Chang, C. W. Yu and R. L. Webb, “Identification of Minimum Air Flow Design for a Desktop Computer Using CFD Model-ing,” 7th Intersociety Conference on Thermal and Thermome-chanical Phenomena in Electronic Systems, 2002, pp. 330-338.

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