Chen Yi's voice fell.

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

An air conditioner installer also hurriedly came up and unpacked the air conditioner.

The cabinet-type air conditioner unit is neatly arranged in a half circle around the edge of the booth.

The rest of the air conditioner compression unit is placed in the outside corridor through extended wires and copper pipes.

Pulling back the curtain of the exhibition hall, through the glass, everyone can see the operation of the main machine in the corridor.

"These are the 20 units of 5 HP air conditioners that I just purchased, and I have the purchase invoice for these air conditioners in my hand."

"Next, we will use them to verify the performance of the first generation of Yifei's lithium carbon silicon battery."

Chen Yi took out a stack of invoices in his pocket and showed them in front of the camera.

Then a hand forklift was brought in, and at the back of the booth, a 100kg encapsulated battery pack and a floor scale with wheels were pulled to the front of the booth.

Several winged staff came over and lifted the battery pack onto the weigher together.

After a while, the scale's LCD screen showed the weight of the battery pack.

- 99.2 kilograms.

"0.2 kg less, but not in the way."

Chen Yi beckoned Qin Xiaoyu to come up, and displayed the weight of the weighbridge in front of the camera of the live broadcast.

Soon, under the busyness of a group of installation workers, all the air conditioners were installed.

It is then connected to the output of the battery via a 380V three-phase converter.

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

"Based on a 5 hp air conditioner, the power consumption for 1 hour is 3.675 kWh.

"With 20 air conditioners and compressors starting, the power consumption in one hour reached 73 kilowatt hours."

"And a 100-kilogram battery has a total capacity of 140 kilowatt hours."

Chen Yi took out the remote control of the air conditioner, started 20 air conditioners in turn, and set the minimum refrigeration temperature of 16 °C and the super wind speed mode.

Buzz!

The hum of the compressor starting rang out outside the hallway.

The hot cold air is blowing through the air conditioner's air vent.

"It's 10:23 a.m., the central air conditioning in the exhibition hall has been turned off, and the 1,280-square-meter exhibition hall is all cooled by these 20 air conditioners.

Two windows were also opened to allow some of the cold air to drain away, ensuring that the exhibition hall did not reach the set temperature and stopping the cooling.

Next, let's verify it for ourselves.

Let's see if this 100-kilogram battery can support 20 air conditioners for two hours. ”

Chen Yi's voice fell, and he motioned to the service staff of the exhibition hall of the press conference to turn off the central air conditioning in the exhibition hall.

Then he took out a clock, turned on the timer, and placed it in front of the camera and everyone in the exhibition hall.

"No, can it really drive 20 5 hp 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, proving that the battery heating is completely fine."

"A 5 hp air conditioner, 4 kilowatts, 20 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's talk about a little common sense in life, although the air conditioner is set to 16 °C for refrigeration, the temperature of the air outlet is at least below 10 °C, otherwise the ambient temperature is difficult to reach the 16 °C required for refrigeration."

"I see, I said how Yifei was so intimate to prepare an air-conditioning blanket for the new energy bosses in the first few rows, it turned out that I was afraid that they would catch a cold from being blown by the air conditioner, I was so moved!"

"Battle report! King Biadi has already put on two battle robes. ”

"Ningde Zeng has three battle robes, although the cold wind is coming, and his whole body is shivering, but real men have to stand firm to the end, and no one is willing to leave."

"Good guy, it's been thirty minutes, and the power indicator is still 74 percent...... Fake, this must be fake, sit back and forget the old thief who wants to lie to me! ”

"I guess Yifei must have secretly modified the booth and air conditioner, and there are special power supply ports where you can't see on the ground!"

"Let me prove that I am an electrician, and whether there is electricity or not, I will know it with my hand."

"Let me come, I'm a sports student, this bit of electricity is completely out of the way."

Over time.

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

Instead of declining, it became more enthusiastic.

All the people looked at the 20 air conditioners blowing directly in the cold wind, as if they were watching an excavator digging the soil, and it took dozens of minutes to see it, without the slightest distraction.

"It turned out to be a new generation of battery technology."

"No wonder, this drone endurance can go back and forth to Mount Everest."

"However, relying on the capacity of the battery alone, it is difficult to achieve this range."

"There should also be a more efficient, more comprehensive absorption spectrum, and a solar-charged material that can be attached to the surface of the fuselage.

Radar cannot detect because the radar wave is absorbed and destroyed. ”

Rongfei's secret base.

Professor Zhang and a group of people have just determined the manufacturing plan of the scramjet engine and the original prototype, and came out for a cup of tea and a day to relax and relax.

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

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

"Perhaps, we can design a brand-new stealth aircraft that is more superior than the current one according to Xiao Chen's ideas."

"Maybe it's not as good as Xiao Chen's flying Mount Everest, and the stealth performance that can't be scanned by all radars will be at least half stronger than the performance of the current stealth aircraft.

An expert in stealth, thinking about it, suddenly came up with a plan.

Modern stealth aircraft to achieve stealth functions.

Mainly through the special shape of the fuselage, the radar reflection cross-sectional area is reduced.

With the help of some special composite materials that absorb radar waves, the radar waves are absorbed to reduce the reflection intensity.

However, such 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 not only brings extra power to the aircraft, but also makes the aircraft have a more powerful stealth effect.

"That's a good idea.

But don't apply.

Funding for scientific research is limited, and we must first solve the problem of whether there is a strong one, rather than the question of whether it is strong or not.

In the battlefield of stealth aircraft, we are already on a par with the other side.

But we don't have a scramjet engine and a supporting aircraft. ”

Lao Zhang thought about it and euphemistically objected.

The cost of scientific research is a special large fund, and for a special large fund.

The point is not to ensure that each technology is the strongest in the world, but to ensure that there must be no technology.

Because funds are limited.

And all the technology pursues the strongest, which is limitless.

It is obviously an unwise choice to chase the infinitely strongest with limited funds.

Therefore, compared with the scramjet engine that has not yet been developed, the research plan to improve the stealth performance of the aircraft obviously has to make some concessions.

"Lao Zhang is right, first solve whether there is any, and then solve whether it is strong or not.

After all, we are not demons like Xiao Chen.

The firepower of young people is fierce.

The new technology is the same and the same as the other, and it is backed by its own funds.

If you really want to run with such a demon, sooner or later you will trip over yourself. ”

Several expert academicians next to him also expressed their opinions.

They are all hidden behind the scenes, and they rarely appear in the public eye except for classes at the academy.

The direction and funding of this research naturally cannot be as arbitrary as Chen Yi.

"One hour and thirty minutes, the air conditioner is operating normally, and the energy density is 1100Wh/kg!"

When Professor Zhang and they were discussing scientific research issues.

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

I saw the live broadcast screen, I don't know when.

The fans of Yifei who came to participate in the press conference all stood up at this moment.

Looking at the timekeeping on the booth, in the cold wind of the air conditioner, there was a neat and loud shout.

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

The interval is no more than 10 minutes.

Another neat shout loudly 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 were still gushing cold air on the booth, they were operating normally.

I don't know whether it's expectation, shock, or fear.

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

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

"Yifei, your battery is actually a false standard!!"

Seeing two hours full, the air conditioner was still running.

A fan suddenly let go of his throat and came with a big roar!

Crunch!

Apparently frightened by his roar.

The compression units of the 20 air conditioners shook a few times, and then stopped running, and the display screen of the cabinet units also dimmed all of a sudden.

"Damn, 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 of the CEO, Biardi, Ningde, Ideal, Geely and other new energy car-related companies.

At this moment, they threw away the multiple air-conditioning blanket robes that were split on their bodies.

Wipe away the snot blown by the cold wind with his hand, and rush to the booth regardless of the image.

Disconnect the bus power supply of the battery pack, move the battery pack away, and repeatedly overturn the air conditioning cabinet in the booth.

Check the power cord and check the ground to see if there is a hidden power connector......