据外媒确认嫦娥5探测器 11月24日升空,目标携带2公斤月球物质样品回地球

佐使的那个视频里说嫦娥四号是核动力,现在还时不时地自我醒来发点照片回来。现在这个五号本应当在四号之前发射的,2017年发射时发生了爆炸,追查了两年多,才完成。这个只有太阳能。
这教授说的是同位素电池,75W, 给小型电子装置用的。

查了英文媒体和严谨的文章,没有一篇主流的英文媒体说嫦娥四号是核动力,如果核动力能做得这么小控制得这么精细,美国白宫和五角大楼早就夜不能寐了。
 
最后编辑:
我对这说法(嫦娥四号是核动力)表示怀疑。那位科大嘉宾教授连最后返回舱打水漂用的弹道是钱学森弹道还是贝佐格弹道都记不清楚(反正就是水漂LOL)。那节目就是科普TALK SHOW节目,娱乐性更强点,这个袁人,更像一个科普秀。

查了英文媒体和严谨的文章,没有一篇主流的英文媒体说嫦娥四号是核动力,如果核动力能做得这么小控制得这么精细,美国白宫和五角大楼早就夜不能寐了。


Screenshot_20201202_201831.jpg
 
我对这说法(嫦娥四号是核动力)表示怀疑。那位科大嘉宾教授连最后返回舱打水漂用的弹道是钱学森弹道还是贝佐格弹道都记不清楚(反正就是水漂LOL)。那节目就是科普TALK SHOW节目,娱乐性更强点,这个袁人,更像一个科普秀,学者气息淡,娱乐主持的意味更浓。

查了英文媒体和严谨的文章,没有一篇主流的英文媒体说嫦娥四号是核动力,如果核动力能做得这么小控制得这么精细,美国白宫和五角大楼早就夜不能寐了。
嫦娥四号是到月背的那个吗?好像那个月兔的确是自我唤醒了很多次,一再超出预期地干活。只是靠太阳能吗?
 


同位素电池,功率小,75W,用在小型电子装置。
不是核裂变或核聚变的, 那是可以给飞船星际航行或发射的承接几十吨载荷的。解决大载荷的航天航行,发射降落的是“nuclear fusion” 核聚变。还没人用过呢。

不是同一概念。

SNAP-27[edit]​


SNAP-27 on the Moon.
Five SNAP-27 units provided electric power for the Apollo Lunar Surface Experiments Packages (ALSEP) left on the Moon by Apollo 12, 14, 15, 16, and 17. The SNAP-27 power supply weighed about 20 kilograms, was 46 cm long and 40.6 cm in diameter. It consisted of a central fuel capsule surrounded by concentric rings of thermocouples. Outside of the thermocouples was a set of fins to provide for heat rejection from the cold side of the thermocouple. Each of the SNAP devices produced approximately 75 W of electrical power at 30 VDC. The energy source for each device was a rod of plutonium-238 providing a thermal power of approximately 1250 W.[17] This fuel capsule, containing 3.8 kilograms (8.4 lb) of plutonium-238 in oxide form (44,500 Ci or 1.65 PBq), was carried to the Moon in a separate fuel cask attached to the side of the Lunar Module. The fuel cask provided thermal insulation and added structural support to the fuel capsule. On the Moon, the Lunar Module pilot removed the fuel capsule from the cask and inserted it in the RTG.

These stations transmitted information about moonquakes and meteor impacts, lunar magnetic and gravitational fields, the Moon's internal temperature, and the Moon's atmosphere for several years after the missions. After ten years, a SNAP-27 still produced more than 90% of its initial output of 70 watts.

The fuel cask from the SNAP-27 unit carried by the Apollo 13 mission currently lies in 20,000 feet (6,100 m) of water at the bottom of the Tonga Trench in the Pacific Ocean. This mission failed to land on the moon, and the lunar module carrying its generator burnt up during re-entry into the Earth's atmosphere, with the trajectory arranged so that the cask would land in the trench. The cask survived re-entry, as it was designed to do,[18] and no release of plutonium has been detected. The corrosion resistant materials of the capsule are expected to contain it for 10 half-lives (870 years).[19]
 
同位素电池,功率小,75W,用在小型电子装置。
不是核裂变或核聚变的, 那是可以给飞船星际航行或发射的承接几十吨载荷的。解决大载荷的航天航行,发射降落的是“nuclear fusion” 核聚变。还没人用过呢。

不是同一概念。

SNAP-27[edit]​


SNAP-27 on the Moon.
Five SNAP-27 units provided electric power for the Apollo Lunar Surface Experiments Packages (ALSEP) left on the Moon by Apollo 12, 14, 15, 16, and 17. The SNAP-27 power supply weighed about 20 kilograms, was 46 cm long and 40.6 cm in diameter. It consisted of a central fuel capsule surrounded by concentric rings of thermocouples. Outside of the thermocouples was a set of fins to provide for heat rejection from the cold side of the thermocouple. Each of the SNAP devices produced approximately 75 W of electrical power at 30 VDC. The energy source for each device was a rod of plutonium-238 providing a thermal power of approximately 1250 W.[17] This fuel capsule, containing 3.8 kilograms (8.4 lb) of plutonium-238 in oxide form (44,500 Ci or 1.65 PBq), was carried to the Moon in a separate fuel cask attached to the side of the Lunar Module. The fuel cask provided thermal insulation and added structural support to the fuel capsule. On the Moon, the Lunar Module pilot removed the fuel capsule from the cask and inserted it in the RTG.

These stations transmitted information about moonquakes and meteor impacts, lunar magnetic and gravitational fields, the Moon's internal temperature, and the Moon's atmosphere for several years after the missions. After ten years, a SNAP-27 still produced more than 90% of its initial output of 70 watts.

The fuel cask from the SNAP-27 unit carried by the Apollo 13 mission currently lies in 20,000 feet (6,100 m) of water at the bottom of the Tonga Trench in the Pacific Ocean. This mission failed to land on the moon, and the lunar module carrying its generator burnt up during re-entry into the Earth's atmosphere, with the trajectory arranged so that the cask would land in the trench. The cask survived re-entry, as it was designed to do,[18] and no release of plutonium has been detected. The corrosion resistant materials of the capsule are expected to contain it for 10 half-lives (870 years).[19]



核电池,OK?
 
核电池,OK?

我翻了一下,英文的很少这么说,我感觉是怕误解吧,一般人都会认为核XX的都是大力神。

WIKI都只有 “Atomic battery”的词条解释,而没有“NUCLEAR BATTERY”的解释。 就是给Atomic battery加了一个NUCLEAR BATTERY一个别名。

Atomic battery​


 
同位素核电池的主要作用是通过衰变放热在月球无日照的两周中保温,使设备不至于在低温中损坏。
经历了许多月昼月夜还在工作状态的嫦娥4/玉兔2,是同位素核电池+太阳能。

嫦娥四号是到月背的那个吗?好像那个月兔的确是自我唤醒了很多次,一再超出预期地干活。只是靠太阳能吗?
 
上升器发射成功了,飞上去了,太阳能板展开了,接下来要花2天时间和轨道器自动对接,2天,不容易,毕竟是人类第一次做这样的自动对接。

 
“嫦娥五号月球轨道交会对接采用停靠抓捕式交会对接方式” :D
 
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