TY - GEN
T1 - NUMERICAL OPTIMIZATION OF MULTISTAGE MAGNETIC REFRIGERATION SYSTEM IN THE TEMPERATURE RANGE OF LIQUID HYDROGEN
AU - Zheng, Wenshuai
AU - Shen, Jun
AU - Li, Zhenxing
AU - Li, Ke
AU - Dai, Wei
AU - Hai, Peng
AU - Huang, Hongmei
N1 - Publisher Copyright:
© 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.
PY - 2022
Y1 - 2022
N2 - Based on a multi-stage regenerator design of magnetic refrigeration hydrogen liquefaction device, a two-dimensional transient numerical magnetic refrigeration model in the temperature range of liquid hydrogen was constructed. Some various factors on the cooling performance of the high temperature active magnetic regenerator (60 K - 80 K) were focused on, including operating frequency, fluid flow time ratio and filling mass of the magnetocaloric material. The simulation results showed that, as the operating frequency increases from 0.25 Hz to 4.00 Hz, the active magnetic regenerator can obtain is larger cooling power. Especially, under the condition of higher frequency and lower utilization factor, the larger cooling power and COP could be obtained. For fluid flow time ratio, the cooling power and efficiency increases with the increase of fluid flow time ratio from 40% to 80%. There is an increasing trend of corresponding utilization factor of the maximum cooling power, as the fluid flow time ratio increase. For the filling mass, the maximum cooling power has a linear relationship with the filling mass of the magnetocaloric material.
AB - Based on a multi-stage regenerator design of magnetic refrigeration hydrogen liquefaction device, a two-dimensional transient numerical magnetic refrigeration model in the temperature range of liquid hydrogen was constructed. Some various factors on the cooling performance of the high temperature active magnetic regenerator (60 K - 80 K) were focused on, including operating frequency, fluid flow time ratio and filling mass of the magnetocaloric material. The simulation results showed that, as the operating frequency increases from 0.25 Hz to 4.00 Hz, the active magnetic regenerator can obtain is larger cooling power. Especially, under the condition of higher frequency and lower utilization factor, the larger cooling power and COP could be obtained. For fluid flow time ratio, the cooling power and efficiency increases with the increase of fluid flow time ratio from 40% to 80%. There is an increasing trend of corresponding utilization factor of the maximum cooling power, as the fluid flow time ratio increase. For the filling mass, the maximum cooling power has a linear relationship with the filling mass of the magnetocaloric material.
KW - Active magnetic regenerator
KW - Multistage magnetic refrigeration
KW - Numerical simulation
KW - hydrogen Liquefaction
UR - http://www.scopus.com/inward/record.url?scp=85147191289&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85147191289
T3 - Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2
SP - 627
EP - 629
BT - Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference
A2 - Dincer, Ibrahim
A2 - Colpan, Can Ozgur
A2 - Ezan, Mehmet Akif
PB - International Association for Hydrogen Energy, IAHE
T2 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022
Y2 - 26 June 2022 through 30 June 2022
ER -
