What is the space station’s power source?

The space station's power sourceis a lithium battery, which generates electricity efficiently.

Main reason: Solar energy production in the universe is not suitable. Since the formation of the Earth, living things have survived primarily on the heat and light provided by the sun. Since ancient times, humans have also known how to use sunlight to dry objects and preserve food. Ground-based solar power generation has become very important. popular. Solar panels are mainly used to convert solar energy into electrical energy. The reason is that the utilization rate of ground-mounted solar energy is not high.

Features of the space station:

It is relatively large in size, has a complex structure, has a long orbit flight time, has multiple functions, and can perform manyries and scientific research projects in the vast space. One of the features of the space station is its economy.

Since not all space stations have the function of returning to the ground, they accept astronauts into space for experiments, which can make the manned spacecraft a transportation tool. astronauts only, thus simplifying the structure of space. station and both. Reducing the difficulty of engineering design can also reduce aerospace costs.

How big is the space station in space and what is its internal structure?

GaAs solar cells.

The International Space Station weighs nearly 400 tons, has three experimental cabins and 31 scientific research cabinets. Power is provided by eight arrays of silicon solar cells 112 feet (34 meters) long. a ratephotoelectric conversion of only 23%, the total power supply is only 90 kilowatts, and external heat sinks are required. The working and living space of astronauts is very small.

The Tiangong Space Station weighs only 90 tons, with 16 scientific experiment cabinets and 7 reserved experiment cabinets piled up on it. The International Space Station weighs 9 times more, but has only 7 more experimental cabinets than Tiangong. this space utilization rate was beaten by Tiangong by several streets.

What is a gallium arsenide solar cell:

You should know that the discovery of solar cells is a revolution in the history of human energy, and its development prospects are very broad. III-V semiconductor materials are an important class of solar cell materials developed after German materials.ium (Ge) and silicon (Si). This type of material has many advantages, such as direct bandgap energy band structure and high light absorption coefficient. , only a few microns thick can completely absorb sunlight, etc.

Gallium arsenide is a typical representative of III-V semiconductor materials. Its band gap width Eg is 1.43 eV (theoretical calculations show that when Eg is between 1.2 and 1.6 eV, the conversion efficiency is 1.43 eV. the highest). The spectral match makes it an ideal solar cell material.

Why is the Chinese Space Station so bright that it can be seen from the ground?

Take the International Space Station as an example (ISS). . It is the largest man-made object in space and the third brightest object in the sky. So that ,Many people can see itoir in the night sky without a telescope. It is 109 meters long and 75 meters wide, about the size of a football field. It weighs 420 tonnes, roughly the same weight as 280 cars.

The total space station space is 932 cubic meters, approximately two-thirds of which is used for equipment and storage. Only a third is “habitable”, that is to say it can be inhabited by humans. This may all seem like a lot for just six astronauts, but it's actually very cramped.

Each astronaut's bedroom is a small cabin, with a sleeping bag attached to the wall to keep them from floating while they sleep. The cabin also houses their computer and can accommodate a few other personal items.

There is also a science laboratory where the crew can conduct research. With up to 2,400 researches conducted during a single expedition, the laboratory can be tvery crowded. Crew members must make room for each other and all their equipment.

Did you know that it takes 42 space flights to assemble the main components of the space station? Outside, eight solar panels power the space station. Together, they produce up to 90 kW of electricity, enough to power 13 Australian homes! The space station also allows six spacecraft to be connected simultaneously. These spaceships transport people and supplies from Russia, Japan or the United States of America. There are currently six crew members aboard the International Space Station.

The scenery inside the space station is spectacular. There is a special observation window called a cupola. It allows an astronaut to both view and take photos of Earth. The station goes around the city 16 timesEarth every 24 hours. Imagine being able to see 16 sunrises and sunsets every 24 hours. What an incredible sight that would be.

Currently, China also has its own space station. Compared to the International Space Station, our space station is also newer.

The moon does not emit light, the light of the moon comes from the reflection of the light of the sun. Likewise, the space station doesn't emit light, but its surface is made of metal and it has huge solar panels, which reflect light much better than the moon.

The Chinese Space Station (Tiangong Space Station, English name: China Space Station) generally refers to a space station system planned by the People's Republic of China. It is expected to be completed around 2022. The orbital height of the space station is 400-450 kilometers, the inclination angle is 42-43 degRes, the design life is 10 years, it can accommodate 3 people for a long time, and the total weight can reach 180 tons, so that to realize larger-scale space applications.

On October 16, 2021, at 6:56 a.m., the Shenzhou 13 manned spacecraft and the entire space station carried out a rapid and autonomous rendezvous and docking. Astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu entered the Tianhe core module, ushering in the era of long-term human presence on the Chinese Space Station.

Target missions< /p>

According to the space station construction mission plan, China will continue to implement 11 missions in 2021 and 2022, including 3 space station module launches, 4 cargo spacecraft and 4 The launch of the space station first manned spacecraft will complete construction of the orbiting space station in 2022, achieving the goal ofmission of the third stage of China's three-stage development strategy for manned space engineering.