Chapter 32 Stepless Speed ​​Adjustable Ion Wind Cannon
Author: Charcoal grilled bamboo shoots
Chapter 32 Stepless Speed ​​Adjustable Ion Wind Cannon
"An energy attribute of 40 points is enough."
Chen Yi checks the thruster properties after connecting the power battery.
Hoo ho ho!
Colorful lights bloom.
The ion thruster and power battery completely cover the desktop.
The properties of ion thrusters are being adjusted rapidly, and their shapes and forms are constantly changing.
Half a minute later, the light dissipated.
The original bulky and large power battery has disappeared, replaced by a battery the size of a thermos cup.
The can propeller, which was originally crude and outrageous, has also undergone earth-shaking changes.
The surface of the cylinder is covered with various modules and capacitors.
On one side is an air intake channel like an aircraft engine, with special turbofan blades with special dents printed on the surface like golf balls.
On the other side is a nozzle that shrinks inward, just like an ordinary turbojet engine.
Just from the appearance, people who don’t know would think that this is a turbofan combustion jet engine.
But only Chen Yi knew it.
This is not a turbofan combustion jet engine.
This is a turbofan ion propulsion engine.
Combustion chambers inside jet engines, this has been replaced by accelerating electric and magnetic fields.
The original way of doing work through combustion and expansion has also become the ion propulsion of the electric field.
[Item: Turbofan ion propulsion engine (atmospheric type)]
[Attributes: Energy x3.2, Strength x3.2, Quality x3.1, Speed ​​x30.1, Efficiency x3.2, Control x3.2, Beauty x3.5...]
【Conscious wave:7228203】
[It is detected that a certain attribute exceeds the initial value. Do you want to read the information? Yes/No!]
[Note: This is a unique engine design that combines turbofan jet + ion propulsion, using ion electric propulsion instead of combustion propulsion. If one day chemical energy is exhausted, it will be the best turbofan engine. 】
"The depletion of chemical energy is the best engine"
"So, it's not as good as a turbofan combustion jet engine now?"
Chen Yi saw the hidden meaning of the comments.
As for the 30-point speed attribute, it was not as good as a turbofan combustion engine, which did not surprise Chen Yi.
Having experienced the creation of an EEG virtual consciousness machine, he already knew it.
Different types of items with the same attributes, weights and performance will be different, or even vastly different.
Ion propulsion engines and chemical combustion propulsion engines.
Although they are both called engines, their principles and types are completely different.
"Test it to see the thrust and thrust-to-weight ratio."
Chen Yi did not rush to read the information, but tried to lift the ion thruster.
A bit heavy.
About 40kg.
Without using a forklift, Chen Yi lifted the propeller to the side of the floor scale.
After some weighing, the mass of the propeller was determined.
39.86 kg.
"The weight is a bit heavy. I'm afraid the thrust-to-weight ratio is a bit high."
Chen Yi moved the thruster to a separate testing area aside.
Fix the propeller on the test bench where the engine thrust is tested, and then open the rolling shutter doors in the front air intake direction and jet direction.
Turn on the switch.
When the lights came on, the originally quiet intake turbofan began to spin.
The speed of the turbofan is not very fast. The instrument that measures the rotation speed shows only 200 rpm, which is not even comparable to ordinary household fans.
The turbofan rotates for two seconds.
Suddenly, there was a loud sound.
The nozzle on the other side of the thruster lit up with a blue glow.
At the same time, violent airflow spurted out.
These airflows tear apart the air, producing a fine, whistling sonic boom.
However, due to airflow, the impact of breaking the sound barrier is relatively small, far less than one thousandth of the impact of a physical aircraft breaking the sound barrier.
Chen Yi, who put on soundproof earplugs and hid in advance, felt no other discomfort except a slight noise.
"65.3kg"
"With this thrust, the thrust-to-weight ratio is not even two to one."
Chen Yi looked at the thrust value displayed on the test bench and couldn't help but complain.
Although he knows that ion propulsion engines generally have relatively small thrust.
But this small one is amazing.
After all, this is not just ion propulsion, but a combination of turbofan + ion propulsion.
Compared with turbofan combustion jet engines and combustion turbojet engines, these are often nine to one, ten to one, or more than ten to one, and the thrust-to-weight ratio of Chen Yi's sprint into space exceeds twenty to one.
The ion engine is in one word, touching.
After more than three minutes of testing, the battery was exhausted and the ion thruster stopped.
Chen Yi connected the charger and then chose to read the information.
Dense information floated in my mind.
These are the structure of the ion thruster, the internal electric field layout, magnetic field distribution, acceleration orbit distribution, magnetic field interference processing and other technical information.
There are also some basic parameters such as jet speed and jet mass of the ion thruster.
"The maximum injection speed is 520 meters per second, which is a good number. But the injection quality of this unit is a bit low."
After more than two weeks of virtual learning.
Chen Yi quickly understood the information read this time, as well as the technical points.
The unit injection quality is low.
This is a common problem with ion thrusters.
If chemical combustion thrusters are compared to tsunami flooding, then ion thrusters are like children peeing.
A true aerospace engine.
For example, the main engine of the Saturn V burns liquid hydrogen and liquid oxygen, and can burn through thousands of tons of fuel in just a few minutes.
An ion thruster of the same size consumes only a few hundred grams of fuel when working for a day.
Although ion thrusters can easily give fuel a faster injection speed.
But the amount is small and not very filling.
In addition, before the injection speed of the fuel approaches the speed of light, the relativistic effect intervenes.
The conservation of kinetic energy and impulse formulas have been determined.
Kinetic energy is quadratically proportional to the jet velocity, but linearly proportional to the mass.
With the same power, the faster the fuel injection speed, the lower the injection quality and the smaller the thrust.
Ion thrusters save a large amount of fuel propellant by reducing thrust and obtain higher efficiency and specific impulse.
In this way, in an environment where there is no gravity, no atmospheric resistance, and no propellant can be replenished in space, greater acceleration time and longer endurance can be obtained.
"Still need to improve
Improved air intake control and improved ion injection control.
During the atmospheric lift-off stage, the thruster can replenish propellant from the external atmosphere at any time.
In this way, there is no need to increase the injection speed, reduce the injection quality, and reduce the thrust in order to save propellant.
Instead, the injection speed should be reduced, the injection quality should be improved, and greater thrust should be obtained.
When we reach high altitudes and into space, we can increase the jet speed, reduce propellant consumption, and gain more acceleration time and longer endurance."
After determining the next improvement plan, Chen Yi did not hesitate and began to adjust the properties of the ion thruster.
Colorful lights emerged.
When the light dissipated, the ion thruster, which was originally a pure bucket, turned into a small black carbon hair dryer.
One end of the air duct is the fan blade, and the other end is the air outlet.
In the middle of the hairdryer, a circle of large and small modules and control capacitors are welded.
[Item: Stepless speed-adjustable ion wind cannon]
[Attributes: Energy x3.2, Strength x3.2, Quality x3.1, Speed ​​x3.1, Efficiency x3.2, Control x30.2, Beauty x3.5...]
【Conscious wave:7222203】
[It is detected that a certain attribute exceeds the initial value. Do you want to read the information? Yes/No!]
[Note: This is an air cannon that combines the latest ion control technology. Through precise control of ions, it can easily blow out a breeze of negative ions and dry your hair in one minute.
At the same time, you can also increase the intensity of the electric field and magnetic field to blow out high-temperature plasma wind with faster speed and higher temperature. The hair dryer turns into a hot air cannon in seconds, and melting gold and breaking iron is not a dream]
"This is a good hair dryer for your girlfriend. If you love you, you can blow dry your hair. If you don't love you, you can dry your hair."
Looking at the remarks and comments about this latest style bomb, Chen Yi couldn't help but click his tongue.
Chapter completed!