Experimental Study on Refrigeration Behavior
of Active Magnetic Regenerator of Room Temperature Magnetic Refrigeration
Gao Qiang,Yu Bingfeng,Wang Congfei,Zhang Bin,Zhang Yan
(School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
Abstract:An experimental system of room temperature magnetic refrigeration was
constructed,and the control and data acquisition system was developed. Thermodynamic
performance of active magnetic regenerator (AMR) of room temperature magnetic
refrigeration was experimentally studied and the refrigeration capacity data were
obtained.The influence of the temperature span,temperature range,flow time and flow rate
were investigated in the experiment.The results indicate that the capacity can reach 18.7
W at a 3¡æ temperature span. In addition,in the experimental region,the capacity
decreased with temperature span increase and the flow rate increase;the increase of flow
time caused a rapid decrease of capacity;the capacity in the temperature range spanning
the Curie point was larger than that in the temperature range below the Curie point.
Keywords:active magnetic regenerator;refrigeration behavior;refrigeration
capacity;temperature span;
temperature range;flow rate;flow time