RT Journal Article
ID 563b26660eff1b2b
A1 xiaohong, gui
A1 Xiange, Song
A1 Zhiwen, Qin
A1 Baisheng, Nie
T1 ANALYSIS OF THERMAL PERFORMANCE OF VOID CAVITY IN A PCM CANISTER UNDER MICROGRAVITY
JF Heat Transfer Research
JO HTR
YR 2018
FD 2018-06-07
VO 49
IS 11
SP 1041
OP 1057
K1 phase change
K1 void cavity
K1 microgravity
AB A physical model and a mathematical model of phase change during the process of heat transfer in a PCM (Phase Change
Material) canister are suggested. Based on a theoretical analysis and calculation results of the PCM canister during the process of solidification, the model of improved void distribution in the PCM canister under microgravity is given. The phase change thermal storage process is numerically simulated with the use of the model of ignoring void cavity distribution, simple void cavity distribution, and improved void cavity distribution. The calculation results for three kinds of void
distribution are compared and analyzed. The results show that the form of the void cavity distribution has a great effect on calculation results. The melting ratio of PCM has a great difference in the form of different void cavity distributions. The form of void distribution has a great effect on the process of phase change. Under the combined effects of local thermal resistance of void cavity and of the side wall of the PCM canister, it is the most difficult for them to melt during the period of sunlight.
PB Begell House
LK http://dl.begellhouse.com/journals/46784ef93dddff27,7ff6027401e57c45,563b26660eff1b2b.html