Chen Yi's words fell.
A group of employees mobilized from Yifei, as well as some helping security guards, carried 20 5-horsepower air conditioners to the front of the booth.
One by one, the air conditioner installers also came up quickly and unpacked the outer packaging of the air conditioner.
Cabinet-type air conditioners are neatly arranged in a half circle around the edge of the booth.
The remaining air conditioner compressor outdoor unit is placed in the corridor outside through extended wires and copper pipes.
Pulling open the curtain of the exhibition hall, through the glass, everyone can see the operation of the host in the corridor.
"These are the 20 5-horsepower air conditioners I just purchased. I have the purchase invoices for these air conditioners in my hand."
"Next, we will use them to verify the performance of Yifei's first-generation carbon-silicon lithium battery."
Chen Yi took out a stack of invoices from his pocket and showed them in front of the camera.
Then a forklift was pulled in, went behind the booth, and pulled the 100kg packaged battery pack and a floor scale with wheels to the front of the booth.
Several Yifei staff members came over and lifted the battery pack onto the floor scale together.
After a while, the LCD screen of the floor scale showed the weight of the battery pack.
——99.2 kilograms.
"It's 0.2 kilograms less, but it doesn't matter."
Chen Yi called Qin Xiaoyu to come up and showed the weight measured by the scale in front of the live broadcast camera.
Soon, with the busy work of a group of installation workers, all the air conditioners were installed.
Then it is connected to the output of the battery through a 380V three-phase converter.
Each air conditioner is also carefully connected to the ground wire of the booth.
"Based on the calculation of a 5-horsepower air conditioner, the power consumption per hour is 3.675 kilowatt hours.
"With 20 air conditioners and the compressor started, the power consumption reaches 73 kilowatt hours per hour."
"And a 100kg battery has a total capacity of 140kWh."
Chen Yi took out the air conditioner remote control and started 20 air conditioners in sequence. At the same time, he set the lowest cooling temperature of 16°C and the super wind speed mode.
Buzz!
The hum of the compressor starting up sounded outside the corridor.
The strong cold air blows through the air vent of the air conditioner.
"It is now 10:23 in the morning, and the central air conditioner in the exhibition hall has been turned off. The 1,280 square meter exhibition hall relies entirely on these 20 air conditioners to cool down.
Two windows were also opened to allow part of the cold air to escape, ensuring that the exhibition hall would not reach the set temperature and stop cooling.
Next, let’s verify it ourselves.
Let’s see if this 100kg battery can support 20 air conditioners running for two hours. "
After Chen Yi finished speaking, he motioned to the service staff in the exhibition hall to turn off the central air conditioner in the exhibition hall.
Then he took out a clock, started timing, and placed it in front of the camera and everyone in the exhibition hall.
"No way, can it really drive 20 5-horsepower air conditioners?"
"I cried to death. He even moved the battery behind the air conditioner and installed a temperature sensor on the battery, which proved that there was no problem with the battery heating."
"A 5-horsepower air conditioner has 4 kilowatts, and 20 units are 80,000 watts, driving 80,000 watts of power. The heat control can be so good, which proves that the internal resistance of this battery is extremely low!"
"A little common sense in life, although the air conditioner is set to 16°C for cooling, the temperature of the air outlet must be at least below 10°C, otherwise the ambient temperature will be difficult to reach the 16°C required for cooling."
"So that's it. I was wondering why Yifei was so considerate in preparing air-conditioned blankets for the new energy guys in the first few rows. It turned out to be because he was afraid that they would catch a cold from the direct blow from the air conditioner. I was so touched!"
"Battle report! President Biyadi has put on two battle robes."
"Ning De Zeng wears three jerseys. Although the cold wind is coming and his whole body is shivering, a real man must stand firm to the end and no one is willing to leave."
"Good guy, it's been thirty minutes, this battery indicator still has 74%... It's fake, this must be fake, the old thief Zuowangdao can't even try to lie to me!"
"I guess Yifei must have secretly modified the booth and air conditioner. There are special power supply ports hidden from the ground!"
"Let me prove that I am an electrician. I can tell whether there is electricity or not by just touching it with my hands."
"Let me come. I'm a sports student. This little electricity won't bother you at all."
As the time goes.
The popularity of the live broadcast room and the emotions of netizens.
Instead of declining, it actually became more intense.
Everyone looked at the 20 air conditioners blowing cold wind, as if they were watching an excavator digging soil. They watched for dozens of minutes without any distraction.
"It turns out that a new generation of battery technology has been developed."
“No wonder the drone’s battery life this time can last to and from Mount Everest.”
"However, it is difficult to achieve this endurance based on battery capacity alone."
“There should be a solar charging material that is more efficient, has a more comprehensive absorption spectrum, and can be attached to the surface of the fuselage.
Radar cannot detect it because the radar waves are absorbed and destroyed. "
Rongfei secret base.
Professor Zhang and a group of others had just finalized the manufacturing plan for the scramjet engine and the first-generation prototype, and came out to have a cup of tea and relax.
Then I saw Chen Yi's live broadcast through the internal confidential transfer signal.
"Lao Zhang, the stealth structure of the aircraft is combined with solar cell technology with a more comprehensive spectrum."
"Perhaps, based on Xiao Chen's ideas, we can design a brand new stealth aircraft that is better than the current one."
"Perhaps it is not as good as Chen Fei's Mount Everest, and its stealth performance that cannot be scanned by all radars will be at least half as good as the performance of current stealth aircraft.
An expert in stealth thought about it in his mind and suddenly proposed a plan.
Modern stealth aircraft realizes the function of stealth.
Mainly through the special fuselage shape, the radar reflection cross-section area is reduced.
Then use some special composite materials that absorb radar waves to absorb radar waves and reduce the reflection intensity.
However, such absorbing materials generally can only target one or more frequency bands, and cannot provide comprehensive absorption and stealth.
At this time, if there is a solar charging material that fits the fuselage and has better absorption efficiency.
This will not only bring extra electrical energy to the aircraft, but also give the aircraft a more powerful stealth effect.
“This is a good idea.
But still don’t apply to get started.
Funds for scientific research are limited, so we must first solve the problem of whether it is available, not whether it is strong or not.
On the battlefield of stealth aircraft, we are already on par with our opponents.
But we don’t have scramjet engines and supporting aircraft yet. "
Lao Zhang thought for a while and raised his objections tactfully.
Scientific research expenses go to special large funds, and for special large funds.
The point is not to ensure that each technology is the strongest in the world, but to ensure that technologies that do not exist must be available.
Because funds are limited.
And all technologies pursue the strongest, which is unlimited.
Using limited funds to chase the unlimited best is obviously an unwise choice.
Therefore, compared with the scramjet engine that does not yet exist, this research plan to improve the stealth performance of aircraft obviously requires some concessions.
"Lao Zhang said it right, first decide whether you have it, and then decide whether it is strong or not.
After all, we are not monsters like Xiao Chen.
Young people have a lot of firepower.
New technologies are the same, and they are backed by their own funds.
If you really want to follow such a monster, you will trip yourself up sooner or later. "
Several experts and academicians nearby also expressed their opinions.
They are people who hide behind the scenes and rarely appear in the public eye except for taking classes at the academy.
Naturally, the direction and funding of this research cannot be as arbitrary as Chen Yi's.
"One hour and thirty minutes, the air conditioner is running normally, and the energy density is 1100Wh/kg!"
When Professor Zhang and others discussed scientific research issues.
Suddenly, a loud shout came through the live broadcast room.
I saw in the live broadcast screen, I don’t know when.
The Yifei fans who came to attend the press conference all stood up at this moment.
Looking at the timer on the booth, I let out a neat and loud shout in the cold wind of the air conditioner.
"One hour and forty minutes, the air conditioner is running normally, and the energy density is 1225Wh/kg!"
The interval is no more than 10 minutes.
Another uniform shout resounded in the press conference exhibition hall.
this moment.
Representatives from new energy manufacturers and representatives from the mobile phone industry who attended the press conference could not help but stand up.
Looking at the booth, the cold air was still blowing out, and the 20 air conditioners were running normally.
I don't know whether the expression is anticipation, shock, or fear.
"One hour and fifty minutes, the air conditioner is running normally, and the energy density is 1347Wh/kg!"
"For two hours, the air conditioner was still running, and the energy density was 1470Wh/kg, exceeding 1400Wh/kg..."
"Yifei, your battery is actually a false standard!!!"
I saw that the air conditioner was still running for two hours.
One fan suddenly let go of his throat and let out a loud roar!
Crunch!
He seemed frightened by his roar.
The compressor outer units of the 20 air conditioners shook a few times, then stopped running, and the display screens of the cabinet-type indoor units suddenly dimmed.
"Damn it, am I so fierce?"
the fan shouted in disbelief.
But at this time, no one paid attention to him.
Sitting in the first row in front are the CEOs of BYD, Ningde, Ideal, Geely and other new energy vehicle-related companies.
At this moment, they all threw away the multiple air-conditioning blankets and shirts that were clinging to their bodies.
Wiping away the snot blown out by the cold wind with his hand, he rushed to the booth regardless of his appearance.
Disconnect the bus power from the battery pack, move the battery pack away, and push the air-conditioning cabinet of the booth over and over again.
Check the power cord, check the ground, see if there are any hidden power connections...
