中文摘要：

在特定工况下对新型的太阳能双喷射制冷系统进行了拥平衡分析，计算了炯效率、总炯损失及系统中各设备的炯损率和炯效率，探讨了发生器温度和蒸发温度对系统炯效率和太甩损失的影响。结果表明，太阳能集热器的炯损最大，炯损率为91％，其次为气体喷射器，炯损率为5％。在其他条件一定时，系统存在一个最佳的发生器温度使系统的炯效率最高，总炯损失最小。当发生温度为75～120℃，蒸发温度为7～15℃，冷凝温度为35℃时，系统总能量效率为10％～18％，炯效率为0．3％～0．65％。

英文摘要：

An exergy balance analysis was made for the novel bi-ejector refrigeration system under a given operating condition. The exergy efficiency and the total exergy losses of the system, the exergy loss rate and exergy efficiency of each component were calculated, and the effects of generator temperature and evaporation temperature on the exergy efficiency and the total exergy losses of the system were discussed. The results indicated that the exergy loss in the solar collector was the maximum and its exergy loss rate was 91%. The second largest exergy loss was in the gas ejector with an exergy loss rate of 5%. As the other conditions were fixed, there exited an optimal generator temperature, at which exergy efficiency was the highest and the total losses were the lowest. The total energy efficiency and exergy efficiency respectively varied in the ranges of 10%-18% and 0.3%-0. 65% for generator temperature 75-120℃, evaporation temperature 7-15℃ and condensation temperature 35℃.