13 KB326 KB12 KB199920252005Soontornchainacksaeng, Thanakom4 straniletnik:51številka:7/8str. 534-537ISSN:0039-2480COBISSID:8712475URN:URN:NBN:SI:doc-Z6J21MXOenAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikenergija toplotnahranilniki toplotematematični modeliprenos toploteshranjevanje energijesimulacijeExperimentation and simulation of thermal energy storage system with non-phase change materials|This research a simulation study and experiment on the thermal energy storage system with non-phase change materials in the range of 50° - 150°C, this system is consisted of the storage tank size of 0.58 m in diameter, and 0.88 min height, containing each set of the charging coil, and the discharging coil, embedded in the combination of 90% by volume of the used - engine oil, and 10% by volume of the river - water rocks. An electric heater is used as the heat source. The simulation of thermal-energy storage system with the mathematic modeling for the theoretical analysis of the system, and by using the Newton - Raphson method in the simulation process during the energy charging and discharging processes, The limitation of the charging oil temperature is maintained at 140°C with the flow rate in the range of 10 to18 l/min, whereas the inlet temperature of the discharge oil is maintainedat 30°C with the flow rate of 6 to 14 l/min. The computer simulation results with the charging time of 2 hours, and the oil flow rate of14 l/min, The temperature of our storage media is increased by 60°C with theamount of heat gain by 23 MJ. And by our further simulation on dischargingfor 1 hour period, with the oil flow rate of 10 l/min, the storagetemperature is decreased by 58°C, with the amount of heat removal of 23MJ. It is found that results from the experiment are differed from the simulation by 3-5 %TEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo