Experimentation and simulation of thermal energy storage system with non-phasechange materials
Soontornchainacksaeng, Thanakom (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-Z6J21MXO This link opens in a new window

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 %.

Keywords:hranilniki energije, modeli matematični, simuliranje sistemov, metode eksperimentalne, heat transfer, thermal energy storage systems, non-phase change materials, mathematical models, experimental set-up
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publisher:Association of Mechanical Engineers and Technicians of Slovenia et al.
Number of pages:str. 534-537
Numbering:Letn. 51, št. 7/8
ISSN on article:0039-2480
COBISS.SI-ID:8712475 Link is opened in a new window
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [et al.], = Association of Mechanical Engineers and Technicians of Slovenia [et al.]
COBISS.SI-ID:762116 This link opens in a new window

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