This civilization is very strong, but the technology tree is a bit crooked

Chen Yi's voice fell.

A group of employees mobilized from Yifei, as well as some helping security guards, carried 20 sets of 5-horsepower air conditioners to the front of the booth.

Air conditioner installers came up quickly and unpacked the air conditioner.

The cabinet-style air-conditioning internal units are neatly arranged in a half circle around the edge of the booth.

The remaining air-conditioning compressor external units are placed in the corridor outside through extended wires and copper pipes.

Open the curtain of the exhibition hall, and through the glass, everyone can see the operation of the mainframe in the corridor.

"These are 20 5-horsepower air conditioners just purchased, and 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 in his pocket and showed them to the camera.

Then a forklift truck was brought to the back of the booth, and the 100kg packaged battery pack and a wheeled scale were pulled to the front of the booth.

Several Yifei staff members came over and lifted the battery pack to the weighing scale together.

After a while, the LCD screen of the scale shows the weight of the battery pack.

- 99.2 kg.

"It's 0.8kg less, but it's okay."

Chen Yi called Qin Xiaoyu up, and showed the weight on 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 connect to the output terminal of the battery through a 380V three-phase converter.

Each air conditioner is also carefully connected to the ground wire of the booth.

"According to 5 air conditioners, the electricity consumption for one hour is 3.675 kWh.

"With 20 air conditioners and compressors on, the power consumption for one hour reaches 73 kWh."

"With a 100-kilogram battery, the total capacity reaches 140 kWh."

Chen Yi took out the remote control of the air conditioner and started 20 air conditioners in sequence. At the same time, he set the lowest cooling temperature of 16°C and super strong wind speed mode.

Buzz buzz!

The hum of the compressor starting up sounded outside the corridor.

The strong cold wind is blowing through the air-conditioning outlet.

"It is 10:23 in the morning, the central air conditioner in the exhibition hall has been turned off, and the 1280 square meter exhibition hall is cooled by these 20 air conditioners.

Two windows were also opened to allow part of the cold air to escape, so as to ensure that the exhibition hall would not reach the set temperature and stop cooling.

Next, we will verify it ourselves.

Let's see if this 100kg battery can support 20 air conditioners to run for two hours. "

After Chen Yi's voice fell, he signaled the service personnel in the exhibition hall of the press conference to turn off the central air conditioner in the exhibition hall.

Then take out a clock, start the timing, and place it in front of the camera and everyone in the exhibition hall.

"No way, can it really drive 20 sets of 5-horsepower air conditioners?"

"Crying to death, he even moved the battery to the back of the air conditioner, and installed a temperature sensor on the battery, which proved that the battery's heat was no problem at all."

"One 5-horsepower air conditioner, 4 kilowatts, 20 units is 80,000 watts, driving 80,000 watts of power, and the heat control can be so good, which proves that the internal resistance of this battery is ultra-low!"

"Let me tell you a little common sense in life. Although the air conditioner is set to cool at 16°C, the temperature of the air outlet should be at least below 10°C. Otherwise, the ambient temperature will hardly reach the 16°C required for cooling."

"So that's it. I said why Yifei was so thoughtful to prepare air-conditioning blankets for the new energy bosses in the first few rows. It turned out that they were afraid that they would catch a cold from the direct blow of the air conditioner. I was so touched!"

"Battle report! President Bi Yadi has put on two battle robes."

"Ning De used to wear three shirts. Although the cold wind was blowing, his whole body was trembling, but a real man would stand firm to the end, and no one was willing to leave."

"Good guy, it's been 30 minutes. This battery indicator is still 74% fake. It must be fake. You don't want to lie to me!"

"I guess Yifei must have secretly modified the booth and the air conditioner, and there are special power supply ports that cannot be seen from the ground!"

"Let me prove it. I am an electrician. I can tell if there is electricity by touching it."

"Let me do it. I'm a sports student. This little electricity is completely fine."

As the time goes.

The popularity of the live broadcast room and the emotions of netizens.

Instead of falling, it became even more enthusiastic.

Everyone looked at the 20 air conditioners blowing cold wind, as if they were watching an excavator digging the soil. It took dozens of minutes to watch without any distraction.

"It turns out that a newer generation of battery technology has been developed."

"No wonder, this time the drone's battery life can go to and from Mount Everest."

"However, relying solely on the capacity of the battery, it is very difficult to achieve this battery life."

"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 people just decided on the scramjet engine and the manufacturing plan of the first-generation prototype, so they came out to drink tea and chat for a while to relax.

Then, through the internal confidential transfer signal, I saw Chen Yi's live broadcast.

"Old Zhang, the stealth structure of the aircraft is combined with the solar cell technology with a more comprehensive spectrum."

"Perhaps, we can design a new stealth aircraft that is better than the current one based on Xiao Chen's idea."

"Perhaps it can't compare to Fade Chen's Mount Everest, the stealth performance that can't be scanned by all radars, at least it will be more than half stronger than the performance of the 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 shape of the fuselage, the radar reflection cross-sectional area is reduced.

Then use some special composite materials that absorb radar waves to absorb radar waves and reduce reflection intensity.

However, such wave-absorbing materials can generally only target one or more frequency bands and bands, and cannot fully absorb stealth.

At this time, if there is a solar charging material that fits the body and has better absorption efficiency.

This can not only bring extra power to the aircraft, but also allow the aircraft to have a stronger stealth effect.

"It's a good idea.

But still don't apply for horses.

The funds for scientific research are limited. We must first solve the problem of availability, not whether it is strong or not.

In the battlefield of stealth aircraft, we are on par with the opponent.

But we don't have the scramjet engine and the supporting aircraft. "

After thinking about it, Lao Zhang tactfully raised his objection.

Scientific research expenses go to special large funds, and for special large funds.

The point is not to make each technology the strongest in the world, but to first solve the problem of whether the technology is available.

Because funds are limited.

And all technologies pursue the strongest, which is infinite.

It is obviously an unwise choice to use limited funds to chase after the infinite strongest.

Therefore, compared with the scramjet engine that does not yet exist, this research plan to improve the stealth performance of aircraft obviously needs to make some concessions.

"Old Zhang is right, first solve whether it is good or not, and then solve whether it is strong or not.

After all, we are not monsters like Xiao Chen.

The young man's firepower was fierce.

Not to mention the same new technologies, and they are backed by their own funds.

If you really want to follow such a monster, you will trip yourself sooner or later. "

Several experts and academicians nearby also expressed their opinions.

They are all people who hide behind the scenes. Except for attending classes in the academy, they rarely appear in the public eye.

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 the others were discussing scientific research issues.

Suddenly, a loud shout came through the live broadcast room.

I saw the live broadcast, but 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, in the cold wind of the air conditioner, they shouted neatly and loudly.

"One hour and forty minutes, the air conditioner is running normally, and the energy density is 1225Wh/kg!"

No more than 10 minutes apart.

Another neat shout resounded in the exhibition hall of the press conference.

this moment.

Representatives of new energy manufacturers and representatives of the mobile phone industry who participated in the press conference couldn't help but stand up.

Looking at the 20 air conditioners that are still running normally, the cold wind is still gushing from the booth.

I don't know if it's anticipation, shock, or fear.

"One hour and fifty minutes, the air conditioner is running normally, and the energy density is 1347Wh/kg!"

"Two hours, the air conditioner is still running, and the energy density is 1470Wh/kg, which is more than 1400Wh/kg."

"Yifei, your batteries are actually fake!!!"

I saw that the air conditioner was still running for two hours.

A fan suddenly let go of his throat and let out a loud roar!

crunch!

He seemed startled by his roar.

The compressor external units of the 20 air conditioners vibrated a few times, and then stopped running, and the display screens of the cabinet-type internal units also went dark all of a sudden.

"Fuck, am I so fierce?"

The fan yelled in disbelief.

But at this time, no one paid any attention to him.

With Chen Yi's consent, sitting in the first row in front were the CEOs of new energy car manufacturers such as Bi Yadi, Ningde, Ideal, and Geely.

At this moment, they threw away the multiple air-conditioning blankets and shirts that were on their bodies, and rushed to the booth quickly.

Disconnect the bus power of the battery pack, remove the battery pack, and overturn the air conditioner cabinet of the booth repeatedly.

Check the power cord, check the ground, and see if there are hidden power connections.

2800 words, I found that I can't always learn to control the number of words out of chapters, envy those big guys who can control the number of words precisely (﹏)