无稀释气立式氧碘化学激光器的设计与实验

 分析了氧碘化学激光器（COIL）在无稀释气条件下工作所带来的一系列问题和对其性能的影响，并提出了相应的解决方法，进而对COIL结构和相关参数进行了有针对性的设计和实验研究。在氯气流量为117.6 mmol/s时,平均输出功率2.25 kW，化学效率达到21.1%，比功率0.22 J/g；分别以氦气和氮气为稀释气，对COIL进行了参数和实验数据比较。

Design and experimental results of VertiCOIL operating without primary buffer gases

An efficient VertiCOIL with a square pipearray jet-type singlet oxygen generator and without primary buffer gas was demonstrated in our laboratory.The most important motivation for no primary buffer gas is that it easily enables the use of a cryosorption pump as the vacuum pumping system,besides,it can greatly reduce the cost and volume of COIL systems for industrial applications.A nozzle bank,with a gain length of 11.7 cm,a subsonic iodine-oxygen mixing length of 4 mm and a designed Mach number of 2.5,is energized by a specially designed SPJSOG operating with no buffer gas.As a result of optimization of the SOG parameters,a maximum output power exceeding 2.25 kW with chemical efficiency of 21.1%,a nozzle exit flux of 64 W/cm~2 and a specific power of 0.22 J/g were obtained for a chlorine flow rate of 117.6 mmol/s.When the chlorine was mixed with a little primary nitrogen,a peak power of 2.4 kW was obtained.