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BASIC RESEARCH ON OZONE SUPPLY FOR OZONE LAYER IN STRATOSPHERE

平流层臭氧层臭氧供应基础研究

基本信息

批准号：
02452139
负责人：
SAKAI Takao
金额：
$ 3.46万
依托单位：
MUSASHI INSTITUTE OF TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1992
项目状态：
已结题

项目摘要

(1) MEASUREMENT OF OZONE YIELD EFFICIENCY AT THE ATMOSPHERIC PRESSURE IN STRATOSPHERETHE PRESSURE IN STRATOSPHERE HAS THE WIDE RANGE FORM 1 TORR TO 200 TORR CORRESPONDING TO THE HIGHT( 15 KM-50 KM).THE OZONE SYNTHESIS BY THE GLOW DISCHAREGE AND/OR UV IRRADIATION HAVE BEEN EXAMINED. HOWEVER, THE OZONE YIELD,NAMELY THE AMOUNT OF SYNTHESIZED OZONE/POWER,SHOWED LOW MAGNITUTES AND ARE NOT SUITABLE FOR THE OZONE SUPPLY IN HIGHER ZONE IN STRATOSPHERE.THE CENTER OF GRAVITY OF OZONE IN STRATOSPHERE IS TO BE AT 20-25 KM IN HIGHT,AND ATMOSPHERIC PRESSURE AT THOSE ZONE IS TO BE 70 TORR. AT THE BOUNDARY BETWEEN STORATOSHERE AND TROPOSHERE,MAGNITUDE OF PRESSURE IS APPROXIMATELY 200 TORR.AND IN THOSE PRESSURE RANGE,SILENT DISCHARGE MAY BE AVAILABLE TO SUPPLY OZONES AS ON THE GROUND.FROM THE VIEWPOINT OF ELECTRIC SOURCE,THE OZONE YIELD OF 100GR/KWH IS NEEDED TO SUPPLY THE CONSIDER-ABLE QUANTITY.THIS MAGINTUTE HAS BEEN REALIZED EXPERIMENTALLY AT THE GAP LENGTH OF 6-9 MM BETWEEN TWO DIELECTRIC PLATES WHICH HAVE THE METAL ELECTRODE ON OUTER SIDE.THE RAPID EXCLUDE OF OZONE FROM THE OZONE GENERATOR IS DESIRABLE TO PROTECT THE DECOMPOSITION OF OZONE BY FOLLOWING DISCHARGE.THE RESULT OBTAINED BY EXPERIMENT SHOWS THAT 24-240 MS OF THE RESIDENCE TIME HAS LITTLE AFFECT ON THE OZONE YIELD.(2) OZONE ON THE GROUND ( FROM THE MOVEMENT IN JAPAN,EUROPA AND US)FROM THE VIEWPOINT OF UV ABSORPTION FROM THE SUN,INTEGRATED SUM OF OZONE BY THE HIGHTS IS IMPORTANT. THIS PROJECT AIMED TO INCREASE THE OZONE IN LOWER ZONE OF STRATOSPHERE. RECENTLY,NEW WAYS SUCH AS ELECTRONBEAM TECHNOLOGY ARE TO READY FOR THE PROCESSING OF DENOX AND DECOMPOSITION OF TOXIC MATERIALS USED IN INDUSTRIES.THE MECHANISM OF THE OZONE GENERATION AND OR ITS DECOMPOSITION MUST BE DONE TO DECREASE THE INFLUENCE OF OZONE TO LIFE.

(1)平流层大气压力下臭氧产额效率的测量平流层压力范围很宽，从1 Torr到200 Torr，对应于最高值（15 KM-50 KM）。但是，臭氧产额，也就是体积分数的臭氧/功率，显示出较低的质量，并不适合平流层中较高层的臭氧含量。平流层中臭氧的重力中心应在20-25公里高，该层的大气压力为70托。在对流层与对流层的交界处，压力约为200托，在此压力范围内，臭氧层可能存在无声放电，从电源的角度看，臭氧产额需达到100 Gr/KWH才能达到合理的数量，这一设想已在6- 100 Gr/KWH的差距长度上实验实现。实验结果表明，在24-240毫秒的停留时间内，臭氧发生器的臭氧产率几乎不受影响。(2)从太阳紫外线吸收的观点看，臭氧层的积分和是重要的。该项目旨在增加平流层低层的臭氧。近年来，电子束技术等新技术为工业上使用的有毒物质的脱氮和分解处理做好了准备，为了减少臭氧对生命的影响，必须研究臭氧的产生和分解机理。