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Yazici, H., Akcay, M., Golcu, M., Koseoglu, M.F., Sekmen, Y.. (1394). EXPERIMENTAL INVESTIGATION OF TRANSIENT TEMPERATURE DISTRIBUTION AND HEAT TRANSFER BY JET IMPINGEMENT IN GLASS TEMPERING PROCESSING. , 39(M2), 337-349. doi: 10.22099/ijstm.2015.3244
H. Yazici; M. Akcay; M. Golcu; M.F. Koseoglu; Y. Sekmen. "EXPERIMENTAL INVESTIGATION OF TRANSIENT TEMPERATURE DISTRIBUTION AND HEAT TRANSFER BY JET IMPINGEMENT IN GLASS TEMPERING PROCESSING". , 39, M2, 1394, 337-349. doi: 10.22099/ijstm.2015.3244
Yazici, H., Akcay, M., Golcu, M., Koseoglu, M.F., Sekmen, Y.. (1394). 'EXPERIMENTAL INVESTIGATION OF TRANSIENT TEMPERATURE DISTRIBUTION AND HEAT TRANSFER BY JET IMPINGEMENT IN GLASS TEMPERING PROCESSING', , 39(M2), pp. 337-349. doi: 10.22099/ijstm.2015.3244
Yazici, H., Akcay, M., Golcu, M., Koseoglu, M.F., Sekmen, Y.. EXPERIMENTAL INVESTIGATION OF TRANSIENT TEMPERATURE DISTRIBUTION AND HEAT TRANSFER BY JET IMPINGEMENT IN GLASS TEMPERING PROCESSING. , 1394; 39(M2): 337-349. doi: 10.22099/ijstm.2015.3244

EXPERIMENTAL INVESTIGATION OF TRANSIENT TEMPERATURE DISTRIBUTION AND HEAT TRANSFER BY JET IMPINGEMENT IN GLASS TEMPERING PROCESSING

Iranian Journal of Science and Technology Transactions of Mechanical Engineering
مقاله 5، دوره 39، M2، دی 2015، صفحه 337-349    اصل مقاله (606.73 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22099/ijstm.2015.3244
نویسندگان
H. Yazici1؛ M. Akcay* 2؛ M. Golcu1؛ M.F. Koseoglu3؛ Y. Sekmen4
1Dept. of Automotive Engineering, Technology Faculty, Pamukkale University, Denizli, Turkey
22Dept. of Mechanical Education, Technical Education Faculty, Pamukkale University, Denizli, Turkey
3Dept. of Mechanical Engineering, Engineering Faculty, Pamukkale University, Denizli, Turkey
4Dept. of Automotive Engineering, Engineering Faculty, Karabuk University, Karabuk, Turkey
چکیده
Heating and sudden cooling are among the most important processes affecting temper quality in the production period of tempered auto glass. In this study, heat transfer characteristics and cooling times during the sudden cooling process of tempered glass production have been experimentally investigated. Flat glass with dimensions of 50x50x4 mm has been heated up to 680 ºC in the furnace and was then exposed to sudden cooling process until its surface temperature dropped to 70 ºC. In the cooling process two mutually placed 8 cm long air jet nozzles with an internal diameter of 8 mm have been used. Experiments have been conducted for Reynolds numbers in the range of (20000≤Re≤40000) and for dimensionless jet to plate distances in the range of (1≤H/D≤10). Based on the above parameters cooling periods, local (Nux), average (Nuaver) and stagnation point (Nustag) Nusselt numbers have been experimentally determined.
کلیدواژه‌ها
Auto glass tempering؛ heat transfer؛ impinging air jet؛ Nusselt number
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