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Performance Improvement of the Flat Plate Pulsating Heat Pipe with Diagonal Grooves

Zareian, Alireza | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 53546 (58)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Shafiee, Mohammad Behshad; Moosavi, Ali
  7. Abstract:
  8. The main purpose of this study was to increase the flow circulation within the flat plate oscillating heat pipes as a result Increase the heat transfer rate by placing diagonal grooves in the evaporator. The project in two stages a simple page and diagonal companion page are provided to investigate the effect of diagonal grooves. First a simple plate and then a second one with diagonal grooves in the evaporator it was made. Thermal performance of the heat pipes at each of the stages at different filling ratios of 40%, 50%, 60% and 70% for variable input capacities have been studied and compared. The results of the second stage showed that the performance of the new heat pipe at the optimum filling ratio (50%) was better than the other modes. And compared to the usual heat pipe performance, about 10% reduction in thermal resistance was recorded. The development of high-quality electronic equipment requires high-capacity heat transfer devices. The development of high-quality electronic equipment requires high-capacity heat transfer devices. Heat pipes with two-phase heat transfer is a good option for this purpose.The next generation of heat pipes is called the oscillatory heat pipe, which was invented in the 1990s by Akachi.Oscillating heat pipes are more efficient than conventional heat pipes due to the simultaneous use of sensible heat transfer and latent heat transfer.Also the simple and inexpensive design is one of the other advantages that the oscillating heat pipe better from other heat transfer devices
  9. Keywords:
  10. Pulsating Heat Pipe ; Flow Visualization ; Fluid Circulation ; Heat Transfer Improvement ; Flat-panel Oscillating Heat Pipe

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