I have a store in the comic world

Chapter 062 Temperature Control

There are chilled water circulation systems connected at both ends of the evaporator. The heat absorbed by the refrigerant reduces the temperature of the chilled water, causing the low-temperature water to flow to the user end, and then passes through the fan coil for heat exchange and blows out the cold air.

How the wind system works:

The fresh air transmission method adopts the displacement method, rather than the internal circulation principle of air-conditioning gas and the unhealthy practice of mixing old and new gases.

Fresh outdoor air will be automatically sucked into the room through negative pressure. When it enters the room through the fresh air vent installed on the window of the bedroom, living room or living room, it will automatically remove dust and filter.

At the same time, the corresponding indoor pipelines are connected to the exhaust vents in several functional rooms. The circulation system formed will take away the indoor waste gas and concentrate it on the exhaust vent to "exhale", and the exhausted waste gas will no longer be recycled. The old and new winds form a good circulation.

Working principle of coil system:

The working principle of the fan coil air conditioning system is to continuously circulate the indoor air with the help of the fan coil unit, so that it can be cooled or heated through the coil to maintain the required temperature and a certain relative humidity of the room.

The cold or hot water used by the coil is supplied by a centralized cold source and heat source.

At the same time, the fresh air after centralized treatment in the fresh air air conditioning machine room is sent to each air-conditioned room through special fresh air ducts to meet the hygienic requirements of the air-conditioned room.

Compared with the centralized system, the fan coil air conditioning system has no large air ducts, only water pipes and smaller fresh air ducts. It has the advantages of easy layout and installation, small building space occupation, and good individual adjustment. It is widely used for temperature and humidity accuracy. It is suitable for comfort air conditioners with low requirements, many rooms, small rooms, and individual control.

......

Why did Zhou Wenwen suddenly want to do this?

In short, as long as you know that Zhou Wenwen failed to make this thing, but after doing so much, Zhou Wenwen could not destroy it directly, so he transformed it into a positioning GPS that can sense temperature, and now, there is nothing that can stop it. .

After receiving the signal from the chip, Zhou Wenwen on the ground took Feijian to the transmitting towers placed on the top of major mountains and immediately transmitted the signal to the communication satellites in geostationary orbit.

What, why are there communication satellites here, you ask?

And this... well, the answer to the question is actually not that complicated. Zhou Wenwen intercepted it while watching the Dawn World next door, and when he turned on the satellite, it was so suspense that Zhou Wenwen was not exhausted to death.

Zhou Wenwen did not expect that geostationary orbit and communication satellites would be so difficult to obtain.

Geostationary orbit (also known as "geostationary orbit", "geostationary satellite orbit", "Clarke orbit") refers specifically to the perfect circular geosynchronous orbit of satellites or artificial satellites perpendicular to the earth's equator.

Geostationary orbit is a type of geosynchronous orbit.

Synchronous orbit means that the object in orbit (usually a satellite) has the same average orbit period and the same direction as the object being orbited (usually a planet).

A circular, synchronous orbit at the equator is called a geostationary orbit.

Above the equator, the altitude of the geostationary orbit is 35900 kilometers.

A concept in satellite orbit theory.

That is, a satellite orbit that is close to moving synchronously with the earth's rotation, or a satellite orbit in which the orbital period of the satellite around the earth is the same as the earth's rotation period.

The orbit of this satellite is nearly circular, with a radius of about 36000km.

When a satellite orbits the earth, it has almost no relative motion relative to the ground, and seems to be suspended stationary in the air, so it is called a geostationary satellite. Intercontinental communication satellites, meteorological satellites, and solar power stations planned to be launched in the 21st century are all flying objects. It is to take advantage of this orbital characteristic.

The first person to propose the use of geostationary satellites for communications was Hermann Potosnik in 1928 (but it was not widely known).

George O. Smith mentioned the geostationary orbit in the first story of the series of science fiction novels Venus Equilateral. This was the first time that the geostationary orbit appeared in popular literature, but Smith did not discuss it in depth.

In 1945, the famous British science fiction writer Arthur C. Clark published an article titled "Extra-Terrestrial Relays–Can Rocket Stations Give Worldwide Radio Coverage?" in Wireless World, explaining in detail the principle of geostationary orbit, which also made geostationary orbit The concept spread widely.

Clark admitted that the concept of geostationary orbit he introduced was related to Smith's The Complete Venus Equilateral.

Clark was the first to illustrate the role of geostationary orbits for broadcast and relay communications satellites.

Therefore, the geostationary orbit is sometimes also called the Clark orbit.

Correspondingly, there is an area 35km above sea level called the Clark Belt, which is located in the equatorial plane and can be used as a quasi-stationary orbit.

In addition, the circumference of Clark's orbit is approximately 265km.

A satellite or artificial satellite that orbits the Earth in this orbit is always at the same location on the Earth's surface.

Its orbital eccentricity and orbital inclination are both zero. The movement period is 23 hours, 56 minutes and 04 seconds, which is consistent with the earth's rotation period, and the orbit radius is 42164.169km.

Since the subsatellite trajectory of a satellite moving in a geostationary orbit is a point, observers on the surface can always observe the satellite at the same position in the sky at any time and will find that the satellite is stationary in the sky. Therefore, many artificial Satellites, especially communication satellites, mostly use geostationary orbit.

Geostationary orbit on-orbit service technology is of great significance in promoting the development of economy, national defense and space technology.

Artificial satellites are relatively stationary to the ground and fixed above the equator. The forward circular orbit is 35786 kilometers above the ground, and the satellite movement speed is 3.07 kilometers/second.

One satellite can cover about 40% of the earth's area.

Meteorological satellites, communication satellites and broadcast satellites often use this orbit.

In addition, some satellites of my country's Beidou Navigation Satellite System also use this orbit.

Radius comparison chart of geostationary orbit, Galileo positioning system, Global Positioning System (GPS), GLONASS, Beidou satellite navigation system, International Space Station and Hubble Telescope.

In addition, the moon's orbit radius (385 kilometers) is approximately 000 times that of the geostationary orbit.

Geostationary satellites must all be distributed in the same ring above the equator.

During operation, in order to avoid adverse frequency interference to satellites, geostationary satellites need to be placed separately, which means that the orbital position is limited, and therefore, the number of satellites operating in geostationary orbit is also certain.

Different countries will have conflicts in competing for the same geostationary orbit position (such as countries with the same longitude but different latitudes) and frequency resources. Such conflicts can be coordinated and resolved through the orbit allocation mechanism of the International Telecommunication Union.

In 1976, eight equatorial countries adopted the Bogota Declaration, declaring that these countries had sovereignty over geostationary orbits over their territories, but this declaration was never recognized by the international community. ъiqugetv

......

To be continued

Chapter 063 Preview the difference between the two tracks