摘要
由于磁流体有很好的吸热和传热特性，将其用作磁流体太阳能集热器的介质是很有应用前景的。设计了一个磁流体太阳能集热器用于温度和热流量特性试验，对2种磁流体进行了试验，结果显示：在磁流体静止不动的时候，磁流体太阳能集热器的磁流体温度可达60℃以上，最高的可达97℃；然而，当磁流体以5m的流速流动时，出口的最高温度仍可达65℃，热流量超过600W／m^2。另外，随着磁流体流速的加大，出口温度将会下降，而热流量则会增加，这对于太阳能集热器工作条件的选择（如温度和热流量的选择）有十分重要的意义。
There is a good foreground for the magnetic fluid to be used in a solar collector as the medium of heat transfer because of its good heat absorbing and transfering characteristics. Magnetic fluid solar collector with insulation layer was designed to test the temperature and heat flux characteristics. The experimental results with steady magnetic fluid show us that, the temperature of magnetic fluids 2 in solar collector can reach at least 60℃, and highest being 97℃. When the magnetic fluid flows at a flow rates higher than 5 L/h, the temperature at outlet will reach above 65℃ and the thermal flux will be larger than 600W/m^2. In addition, the outlet temperature decreases with the increase of the flow rate of magnetic fluid, and the thermal flux increases with the increase of flow rate. This is significative for choosing the working conditions such as necessary temperature and amount of heat.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A03期1227-1230,共4页
Journal of Functional Materials
基金
中国博士后科学基金资助项目（20060139）
浙江省科技攻关重点资助项目（2005C21102）.
关键词
磁流体
太阳能集热器
温度特性
热流量特性
实验研究
magnetic fluid
solar collector
temperature characteristic
heat-flux characteristic
experimental research
