International Journal Of Exergy, cilt.1, ss.1-28, 2019 (SCI-Expanded)
The main objective
of this study is to experimentally investigate the effect of placing phase
change material (PCM) inside the horizontal mantled hot water tank on thermal
energy storage (TES) performance. Six cylindrical paraffin tubes made of glass
of 1 liter were placed inside the mantled hot water tank storage tank side by
side vertically, respectively. At the end of this study, it was found that
using paraffin inside the hot water tank increased the TES capacity and amount
of hot water obtained from the tank. The amount of obtained hot water didn’t
increase proportionally with the increase of the amount of paraffin, as the
volume of the tank was constant. Because the amount of hot water in the tank
decreased with increasing the amount of paraffin. The stored energy in the
paraffin wasn’t transferred to the water efficiently. In order to obtain the
highest volume of hot water, 4 tubes paraffin should be placed inside the tank.
Discharging period duration could be increased 17 minutes with 4 tubes
paraffin. Each added 1-liter paraffin reduced the temperature in the tank by
nearly 1 °C.