Loading...
طراحی و مطالعه تجربی لوله حرارتی ترموسیفونی که از جریان سیال عامل، کار استخراج می‌کند
864 viewed

طراحی و مطالعه تجربی لوله حرارتی ترموسیفونی که از جریان سیال عامل، کار استخراج می‌کند

حسین زاده، احسان Hosseinzadeh, Ehsan

Design and Experimental Study of a Thermosyphon Heat Pipe, which Extracts Work from the Working Fluid Flow

Hosseinzadeh, Ehsan | 2024

864 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 58300 (58)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Shafii, Mohammad Behshad; Sani, Mehdi
  7. Abstract:
  8. Thermosyphon heat pipes are vacuum-sealed two-phase heat transfer devices, commonly called vertical or inclined heat pipes without wicks under the influence of gravity. They comprise a sealed, evacuated tube partially filled with a working fluid. The lower section of the tube serves as the evaporator, where heat input causes the liquid to vaporize. This vapor moves upward to the condenser, where it releases heat and condenses back into liquid form, and the condensed liquid returns to the evaporator by gravity. The adiabatic section, which is located between the evaporator and condenser, is well insulated to allow the vapor to pass through with minimal heat loss. These systems utilize the latent heat of phase change to enable efficient thermal transport, achieving heat transfer rates significantly higher than those of solid conductors like copper. Their simplicity, effectiveness in transferring heat in one direction (thermal diode behavior), and broad operating temperature range make them ideal for applications including HVAC systems, thermal energy storage, permafrost stabilization, geothermal heating, and electronic cooling. In this study, a loop thermosyphon heat pipe and water as the working fluid were investigated. An experimental setup was created to assess its thermal performance, with the additional objective of generating electrical power using a fan connected to an armature. The thesis details the design process, experimental methodology, and results. During testing of the thermosyphon loop, the fan’s shaft achieved a rotational speed of 180 rpm, producing a power output of approximately 0.05 watts
  9. Keywords:
  10. Thermosyphon Heat Pipe ; Power Output ; Work Extract ; Fluid Flow

 Digital Object List

 Bookmark

No TOC