The results show that in order to obtain higher exergy efficiency number of transfer unit(NTU)and capacitanceratio should be selected carefully for they have optimum values.
指出为取得较高的(火用)效率,传热单元数和水当量比应仔细选择,它们有一最佳值。
2
An output sawtooth thereby is produced having one endpoint determined by a fixed voltage source and the other endpoint in accord with the capacitanceratio of the timing and switched capacitors.
因而产生输出锯齿波,具有一个端点由固定电压源确定,和另一个端点根据定时和开关电容的电容比。
3
The influences of the mass ratio of KOH to petroleum coke, microwave radiation power and time on the pore size distribution of the activated carbon and the specific capacitance of EDLC were studied.