Influence of pulse shape of single pulsed air jet impingement system on heat transfer?

Rozli Zulkifli, Nor Adrian Nor Salim, Ahmad Fadhil Ismail, Shahrir Abdullah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pulsed air jet impingement system is one of the most important area of heat transfer studies due to its wide engineering applications in heating and cooling such as in textile drying and electronics cooling. In this paper, the tests parameters used are a constant Reynolds number of 16000, Copper impingement plate surface temperature of 100°C, radial distance to nozzle outlet diameter ratio (r/d) in the range of 0 and 6 and different pulse frequencies of 0 Hz and 60 Hz. Duty cycles of 0.18, 0.27, 0.31 and 0.35, the cylindrical pulse mechanism shape with four different circular areas of 314.16, 514.16, 614.16, and 714.16 mm2 and two different nozzle diameters of 15 and 20 mm diameter are used. The objectives of this paper are to determine the effect of pulse shape and the nozzle diameter towards the heat transfer enhancement. Results obtained show that for nozzle with diameter of 20 mm (pulse shape 4), the maximum heat transfer rate is recorded at plate distance to nozzle outlet ratio (z/d) equals to 4 and for 15 mm nozzle diameter (pulse shape 1), the maximum heat transfer rate is recorded at z/d equals to 2. Optimum frequency is between 30 Hz and 50 Hz while highest heat transfer enhancement is between z/d of 2 and 4.

Original languageEnglish
Title of host publicationProceedings - 2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012
Pages1401-1406
Number of pages6
Publication statusPublished - 2012
Event2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012 - Seoul
Duration: 3 Dec 20125 Dec 2012

Other

Other2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012
CitySeoul
Period3/12/125/12/12

Fingerprint

Nozzles
Heat transfer
Air
Electronic cooling
Textiles
Drying
Reynolds number
Cooling
Copper
Heating
Temperature

Keywords

  • Heat Transfer
  • Impingement System
  • Nozzle
  • Pulse Shape
  • Pulsed Air Jet

ASJC Scopus subject areas

  • Computer Science Applications
  • Software

Cite this

Zulkifli, R., Salim, N. A. N., Ismail, A. F., & Abdullah, S. (2012). Influence of pulse shape of single pulsed air jet impingement system on heat transfer? In Proceedings - 2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012 (pp. 1401-1406). [6530560]

Influence of pulse shape of single pulsed air jet impingement system on heat transfer? / Zulkifli, Rozli; Salim, Nor Adrian Nor; Ismail, Ahmad Fadhil; Abdullah, Shahrir.

Proceedings - 2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012. 2012. p. 1401-1406 6530560.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zulkifli, R, Salim, NAN, Ismail, AF & Abdullah, S 2012, Influence of pulse shape of single pulsed air jet impingement system on heat transfer? in Proceedings - 2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012., 6530560, pp. 1401-1406, 2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012, Seoul, 3/12/12.
Zulkifli R, Salim NAN, Ismail AF, Abdullah S. Influence of pulse shape of single pulsed air jet impingement system on heat transfer? In Proceedings - 2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012. 2012. p. 1401-1406. 6530560
Zulkifli, Rozli ; Salim, Nor Adrian Nor ; Ismail, Ahmad Fadhil ; Abdullah, Shahrir. / Influence of pulse shape of single pulsed air jet impingement system on heat transfer?. Proceedings - 2012 7th International Conference on Computing and Convergence Technology (ICCIT, ICEI and ICACT), ICCCT 2012. 2012. pp. 1401-1406
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