چكيده به لاتين
In the last years of the 19th century, heat pipes emerged as a new technology in the field of heat transfer systems. The heat pipe operates in a closed cycle in which the concept of evaporation and condensation of a working fluid according to the working conditions is used to transfer heat from one point to another. Each heat pipe consists of three main parts: the chamber, the wick structure and the working fluid. The condensed steam in the condenser area is returned to the evaporator area by the capillary force created by the wick structure. Because the heat pipes operate in a closed two-phase cycle,their heat transfer capacity is several times larger than that of the best solid conductors, which reduces their thermal resistance. Therefore, today heat pipes are used in the cooling of electronic components, air conditioning, space control of spacecraft, energy recovery and many industries that somehow deal with the phenomenon of heat transfer. On the other hand, facing limited energy and material reserves and adverse climate change has led many researchers to pursue new strategies for energy production, storage and transmission. One of the most effective passive methods proposed is the use of nano fluids in various fields of engineering. Nanofluid is a suspension in which solid particles are dispersed at the nanometer scale in the base fluid. High thermal conductivity of solid particles increases the effective thermal conductivity of the base fluid, which ultimately increases heat transfer.Therefore, many researchers in their research began to use nanofluid as a working fluid in the heat pipe, which has yielded good results. Studies conducted in recent years show that the application of magnetic fields on currents that have a kind of magnetic properties, in controlling the current regime as well as various areas of heat transfer such as boiling, evaporation, condensation, etc. have a significant effect. And improves heat transfer characteristics. Therefore, in the present study, the effects of applying magnetic field in different areas of the heat pipe in which magnetic nanofluid has been used as a working fluid have been investigated numerically.
