Loop thermosyphon with multiple evaporators has unique startup features and interaction characteristics between evaporators which are worth studying. In this paper, the startup influencing factors of a loop thermosyphon with multiple evaporators are studied experimentally and visually. Meanwhile, the interaction between evaporators is evaluated quantitatively using a newly defined parameter called interaction ratio, which represents percentage change in temperature divided by percentage change in heating power. The results show that the temperature of evaporators often has a local peak value during the startup, at which moment the boiling becomes fully developed. Also, the effect of filling ratio, heating power value and distribution on the local peak temperature is analyzed. For each evaporator, interaction ratio on itself is always the largest. Among the evaporators, interaction ratios of the evaporator in the middle are the largest because the competition and crowding of its flow with the other evaporators are more intense. With the increase of filling ratio, interaction ratios on itself decrease while interaction ratios on the others increase.

多蒸发器回路热虹吸管具有独特的启动特性和蒸发器之间的相互作用特性，值得研究。本文通过实验和目视研究了多蒸发器回路热虹吸管的启动影响因素。同时，蒸发器之间的相互作用使用新定义的称为相互作用比的参数进行定量评估，该参数表示温度变化百分比除以加热功率变化百分比。结果表明，蒸发器的温度在启动过程中经常出现局部峰值，此时沸腾充分发展。同时，分析了填充率、加热功率值和分布对局部峰值温度的影响。对于每个蒸发器，其自身的相互作用比总是最大的。在蒸发器中，中间蒸发器的相互作用比最大，因为它与其他蒸发器的流动竞争和拥挤更加激烈。随着填充率的增加，自身的相互作用比降低，而其他的相互作用比增加。