Shenzhou 9 Power consumption 43 degrees flying one day, Ensure that the astronauts eating
hot meals every meal.
The spacecraft Shenzhou 9 orbited the earth flight 1 hour how much power? Maybe you cann't
guess, Only need 1800 watts. As a general family expenses air conditioning or is a power of
microwave oven of high power consumption. But the shuttle and household appliance than up,
but a big guy. Although "god nine" power consumption is not big, but it has a powerful
"heart"--power-supply system, Provide power security at every moment for the Shenzhou 9.
In a few hours before the rocket, power system will be full of electricity, from the rocket
that moment, started to work.After the rocket, people will is very concerned about the
shuttle solar panels whether can smoothly, Because the power system is actually a
photovoltaic system, Like a little "farm", The source of the energy is solar energy. Only
solar battery on board,Power supply system to work properly. Rely on solar energy hair of
electricity, Part of the supply ship use,Part of the battery is used to store up.
"The shenzhou 9" flying lap around the earth to about 90 minutes,This period has more than
50 minutes is in the sunshine of the light, solar cells, the panels can work normally and to
energy storage battery.But there are more than 30 minutes is in no sunlight to shadow of the
period, the sun panels will stop working batteries,At this time to maintain the normal
operation of the ship from nickel cadmium battery power beforehand good electrical energy
storage.
In addition, the power supply system and an important "help" role,just in case Ship
accidents happen,Emergency battery will play.Emergency battery usage is a high performance
than new silver zinc battery,Its role is like UPS.In an emergency, spacecraft to return to
the ground need four hours,The emergency battery can ensure that the shuttle power supply,
And after landing for search and rescue system provides 24 hours of electricity.
The astronauts in the air for more than 10 days, living power depends on power system.In a
period of the manned space engineering,Due to the limited power supply,astronaut worry
"Excessive consumption power",Won't heating food,Eat is cold rice.
Use of the manned space engineering phase ii of the power supply system,Solar panels of the
material are the three "gaas-on-gaas potassium,And a period of use than polysilicon, power
generation capacity doubled.It also makes the power supply system of more strong robustness,
At the same time, power system using high pressure system, reduce the various losses.Because
electricity supply,"The shenzhou 9" can ensure that the astronauts eating hot meals every
meal.
神九飞行一天耗电43度 确保航天员顿顿吃上热饭
神舟九号飞船绕地球飞行1小时耗电多少？也许你猜不到，只需要1800瓦，相当于一个普通家用空调或者
是一个功率高点的微波炉的耗电量，但飞船与家用电器比起来，可是个十足的大个头。一天飞行下来，“
神九”耗电量只有43度。虽然“神九”耗电不大，但却有一颗强大的“心脏”即电源系统，时时刻刻为“
神九”的飞行提供电力保障。
在火箭发射前几个小时，电源系统会被充满电，从火箭发射的那一刻起，就开始工作了。在火箭发射后，
人们都会非常关注飞船太阳能帆板是否能够顺利展开，因为电源系统实际上就是一个光伏系统，像一个小
“发电场”，能源的来源就是太阳能，只有太阳能电池帆板展开了,电源系统才能正常工作。而依靠太阳
能发的电，一部分供给飞船使用，一部分则用蓄电池储存起来。
　　“神舟九号”绕地球飞行一圈需要约90分钟，这期间有50多分钟是在阳光照射下的光照期，太阳电池
帆板可以正常工作并给储能电池充电。但有30多分钟却是在没有阳光照射的地影期，太阳电池帆板将停止
工作，这时维持飞船正常运转的电能都来自镉镍蓄电池事先储藏好的电能。这就像我们平时使用的手机一
样，只有给电池充好电才能正常工作，所以在光照期为蓄电池充好电，飞船才能维持正常运转。
此外，电源系统还有重要的“救命”的作用。万一飞船发生不测，应急电池就会起用。应急电池使用的是
高性能比新型银锌电池，其作用就像UPS。出现紧急情况时，飞船返回地面需要 4个小时，而应急电池可
以确保飞船供电，以及落地后为搜救系统提供24小时的用电。
　　航天员在天上飞行的十几天里，生活用电都要依靠电源系统。在载人航天工程一期时，由于供电能力
有限，航天员怕“费电”，舍不得加热饭菜，吃的都是冷饭。
　　载人航天工程二期使用的电源系统中，太阳能帆板的材料采用了三结砷化钾，与一期使用的多晶硅相
比，发电能力提高了一倍。这也使得电源系统的健壮性更强。同时，电源系统采用高压体制，减少了各种
损耗。由于电能供应充足，“神舟九号”可以确保航天员顿顿吃上热饭。