[논문]수치해석과 실험을 통한 Can type container 내부 상변화 물질의 열유체적 특성분석

허승민; 현수웅; 정희준; 신동호

doi:10.5407/jksv.2023.21.2.063

수치해석과 실험을 통한 Can type container 내부 상변화 물질의 열유체적 특성분석
Numerical analysis of the thermal fluid characteristics of phase change material in can type container 원문보기

한국가시화정보학회지= Journal of the Korean society of visualization, v.21 no.2, 2023년, pp.63 - 71

허승민 (Department of Mechanical Engineering, Hanyany University (HYU)) , 현수웅 (Department of Mechanical Engineering, WKU) , 정희준 (Department of Smart Automotive Engineering, WKU) , 신동호 (Department of Smart Automotive Engineering, Wonkwang University (WKU))

Abstract ▼ AI-Helper

Energy storage and distribution technologies are emerging as important factors as research on renewable energy continues. Analyzing the thermal flow of phase change material inside a latent heat storage device and to predict the phase change time is an important part for improvement of thermal performance. However, most of the current research is based on the trial-and-error experimental investigation to measure the phase change time. Therefore, in this study, a can-type phase change material container was designed, and the numerical method for analyzing the thermal flow of phase change material was established and validated. The error rate of the phase change time between the numerical and experimental results was within 5%, which proves its reliability. As a result, the phase change finishing times were found to be 78 minutes with inlet fluid temperature of 80℃ during charging process, and 126 minutes with inlet fluid temperature of 9℃ during discharging process.

주제어

표/그림 (15)

그림 Fig. 1. Schematic diagram of experimental set up
그림 Fig. 2. Photo of experimental set up
표 Table 1. Properties of PCM
그림 Fig. 3. Photo of Can type container (a) Domain of numeri cal set up (b)
그림 Fig. 4. Result of mesh independence test
그림 Fig. 5. Result of time independence test
그림 Fig. 6. Experimental and numerical results of PCM temperature by time during charging process
그림 Fig. 7. Experimental and numerical results of PCM temperature by time during discharging process
$Fig. 8. Experimental and numerical results of volume fraction of solid PCM in melting processes inside the can type container$ 그림 Fig. 8. Experimental and numerical results of volume fraction of solid PCM in melting processes inside the can type container
그림 Fig. 9. Temperature distributions in can type container by time during charging process
그림 Fig. 10. Experimental results of the phase changing time according to the charging inlet temperature with empirical correlation
그림 Fig. 11. PCM temperature by time during charging experiment of can type PCM container with the different charging inlet temperature
그림 Fig. 12. Melting time of PCM in can type container according to the flow rate with the different charging inlet temperature
그림 Fig. 13. PCM temperature by time during discharging experiment of can type PCM container with the different charging inlet temperature
그림 Fig. 14. Solidification time of PCM in can type container according to the flow rate with the different discharging inlet temperature

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