Enhancement of Heat Transfer Performance of a Heat Pipe by Using Calcium Magnesium Carbonate-Ethylene Glycol/Water Nanofluid with Sodium Dodecylbenzene Sulfonate

In this paper, the effect of using CaMg(CO3)2/Ethylene Glycol-water (50:50%) as a working fluid on thermal performance thermosyphon heat pipe was experimentally studied. Nanofluid prepared by two-step method 2% concentration CaMg(CO3)2 nanoparticle and 0.05% surfactant (Sodium dodecylbenzene sulfonate). For experimental set-up, straight copper one-meter length used. The inner diameter is 13 mm, outer 15 mm. Experiments were conducted at three different cooling water mass flow rates (5, 7.5, 10 g/s) heating powers (200, 300, 400 W) to test performance. It observed that nanofluid reduced average wall temperature according base fluid. Furthermore, efficiency resistance investigated separately for EG/water nanofluid. maximum transfer enhancement obtained 9.55% under W power g/s rate conditions improvement in 21% 200 rate. Viscosity specific also determined compared each other.