摘要
根据半导体制冷中常用制冷量和散热量表达式和对流换热基本公式,建立起包含系统各个参数的制冷量Qc和效率COP的表达式,根据Qc和COP表达式模拟各参数变化对制冷量和COP的影响,讨论的参数包含散热端热阻Rha,制冷空间与环境的温差△T,尺寸因子G(单个热电臂横截面积与长度的比值S/L)和热电模块的对数N,结论指出在半导体制冷器设计过程中对各参数的合理选用有助于提高系统运行效率,降低能耗。
According to the basic equations used in thermoelectirc refrigeration and convective heat transfer,the expressions of Qc,COP including varuious parameters are established.Influence on the cooling capacity and performance by changing the parameters is simulated.These parameters are the hot-side thermal resistance Rha,the temperature difference between refrigeration cabinet and external environment △T,G factor and the number of thermocouples per one thermoelectric module N.The result shows that the proper selection of these paremeters will help improving the system performance and reducing energy consumption.
出处
《流体机械》
CSCD
北大核心
2011年第2期72-76,67,共6页
Fluid Machinery
