Chapter 1353 Let human technology break away from boiling water
Although Xing Muchun has said that all the parameters of the first shot are installed in advance, and there is no need for the launching unit to perform too much operation, just press the ignition button and it’s all done.
But in Liang Yangang's opinion, this can only be regarded as the minimum requirement for the task.
A good commander must not be satisfied with this.
What's more, according to the other party, if the first shot is successful, the interval between the subsequent launches should be very short and the difficulty will become higher and higher.
If you cram the Buddha at that time, it is very likely that it will be too late.
It is a trivial matter to embarrass yourself or even to the 810th Brigade. If this affects the R&D department's equipment development strategy, it will become a historical sinner.
So, after connecting with Xing Muchun for some details of the follow-up work, he led the troops to start the double special training on paper and practical work.
Of course, Liang Yangang is not able to provide paper special training for his subordinates.
Even he has to start learning almost from scratch.
Therefore, after a lot of pestering and asking for instructions from his superiors, Xing Muchun, who was originally expected to only stay in Dingxin for three days, was forced to extend his itinerary to one week.
On the other side, Chang Haonan in Huairou Science City also received good news.
A good news that surprised him a little...
...
"Academician Chang, under the care and care of the organization, under your leadership and guidance... The short-discharge version of the magnetofluid power generation verification section has been successfully implemented. ”
Han Chenfeng held a few inconspicuous A4 paper in his hand and said to Chang Haonan in an extremely plain tone.
The latter just started working today and saw Han Chenfeng with a haggard face at the door of the office. He thought the other party was coming to find some equipment he wanted or asked for some help.
As a result, before even taking off the coat, I heard such a sudden news.
The whole person's movements stopped for a moment.
Then subconsciously glanced at the calendar hanging on the wall.
It is September 2007, and it has only been less than a year since he and Han Chenfeng proposed the idea of a magnetofluid power station.
At a certain moment, Chang Haonan suddenly felt a little empathetic.
No wonder those old seniors looked like they were terrified when they saw them finishing their projects in a few months-
The R&D personnel who were immersed in their work might not feel anything. , but from an outsider's perspective, it's really a bit amazing.
Fortunately, he has done a lot of the same things, so he doesn't express this emotion too clearly.
Taking advantage of the pause, Chang Haonan took the opportunity to zip the jacket again and made an unexpected look: "How are the operating parameters and how adaptable it is to the external environment?"
Perhaps because of his excellent acting skills, Han Chenfeng really didn't see any clues, and thought that everything was under the calculations of Academician Chang, and he couldn't help but show a somewhat regretful expression.
But he quickly answered: "Because it is just a verified principle device, the peak power is only 170 megawatts, a single working time is 55-60 milliseconds, and the average power of the whole process is about 95- 100 megawatts, barely meeting the design expectations...but there is still a lot of room for improvement in the future, but it only requires a more professional platform and more full preparations, and of course there is more capital investment."
Saying "only" 170 MW is definitely not Han Chenfeng's Versailles.
Although this number looks quite scary, almost equivalent to a medium-sized thermal power generator set, it cannot be continuously output, but can only be firm and then enter a long window period.
The idea of "circulating work and continuous power generation" is still quite a distance away.
Even if it is electromagnetic catapult or electromagnetic energy emission, which requires pulse discharge, the discharge time in less than 100 milliseconds is really a little too cold.
If the working time is extended, the power parameters will experience an exponential drop.
It is indeed just an indicator to verify the device in advance.
Of course, compared with similar products that could only be used as toys in the past, it has made a qualitative leap.
At least, it can be determined that this technology has application-level potential. "Go, go and take a look..." Chang Haonan pointed to the direction outside the door and signaled the other party to lead the way.
Although most of Han Chenfeng's assets are in Shengjing, in order to get a powerful enough detonation drive section to provide a high-density plasma, the development of the entire magnetic fluid verification equipment is completed in Huairou Science City. .
Including the verification equipment itself, it is also placed in a nearby laboratory that was temporarily vacated. So, less than ten minutes later, Chang Haonan saw the magnetic fluid power generation system that Han Chenfeng made.
Since the core of the entire equipment is a forward detonation drive section similar to the shock wave wind tunnel, it is no different from a small wind tunnel from the outside. .
Only through the vacuum tank in the load part and the power generation channel composed of strong magnets, its special features can be vaguely seen.
Han Chenfeng photographed the flange at the front end of the equipment and introduced it to Chang Haonan.
"We directly borrowed the design of the JF14 wind tunnel and reduced it in proportion to it... It turns out that it is a complete decisive and other subsystems cannot match its performance, even if it is not possible to match it, even if it is not possible to match it, it is not possible to match it, even if it is not possible to match it, it is not possible to match it, even if it is not possible to use it, it is not necessary to use it. It is more than enough to increase the rated power ten times..."
In engineering, if a device is enlarged by an order of magnitude in proportion, there will definitely be various bizarre problems.
But if it is reduced to one tenth of the original, it will usually be much more worry-free.
And the labor hours required for development and production are often less than one tenth.
It's just that in terms of cost, it will be a bit wasteful due to excessive material use.
But considering the efficiency of Han Chenfeng and others, this is understandable.
No mistakes, one poem, one post, one content, one in 6, one book, one bar, one read!
"We mixed argon and xenon as working fluid gases and blended a portion of alkali metals into them as ionization seeds to improve their conductivity and reduce the demand for external magnetic fields under the same power generation power, you know Our country is not the leader in strong magnets, and considering the possible military uses of this technology, we have not chosen to import..."
Hearing this, Chang Haonan suddenly raised his hand and interrupted: br>
"I remember what you just said is that the performance barely meets the design expectations... In other words, you, or you personally, had higher expectations for the performance of this device, but the final test results did not reach this level. It should be true? "
Han Chenfeng was stunned, then showed a "worthy of being you" expression and nodded: "That's right, actually my personal estimate of the peak value The power should be more than 250MW. "
"Have you analyzed what causes the gap in the middle?"
As we grow older, Chang Haonan has become more and more It conforms to the image of a "mentor" in general concepts.
"There are many factors, but the most important thing is that I underestimated the adverse effects of power generation channels on the performance of working fluids. Fortunately, there was enough margin left under Comrade Li Ziyin's suggestion, otherwise I would have even had a 170MW design index. It cannot be achieved..."
Speaking of this, Han Chenfeng's expression became more and more serious:
"As for which part of the power generation channel is problematic, we He is still going back to the entire design process."
This time, Chang Haonan did not respond, but came to the load section and stared at the nameplate on it for about half a minute.
Then he turned around and asked again:
"During the design process, do you use the revised assumption of isothermal gas flow?"
Han Chenfeng even forgot to answer directly, but subconsciously asked:
" You know all this? "
Obviously, Chang Haonan's guess is correct.
"This is not surprising."
He pointed to the power generation channel wrapped in a thick insulation layer and explained: "When the fluid flows through the wall of the power generation channel, a thin gas layer with a temperature gradient is formed near the boundary due to cooling, which is close to the surface of the electrode. The temperature distribution of the boundary layer is uneven and is much lower than the mainstream of the center, which changes the conductivity of the conductive gas between the electrodes, which is reflected in the macroscopic decrease in the performance of the working-quality gas."
Han Chenfeng opened his mouth, but No sound was made.
This kind of operation that can perform attribution analysis by listening to his descriptions is too challenging his worldview.
After hesitating for a while, he asked tentatively:
"Academician Chang, you haven't... seen our log files?"
"No."
Chang Haonan smiled and shook his head:
" Actually, before today, I didn’t even know that your progress has reached this level..."
Compared with the hypersonic project that submits reports every week, Han Chenfeng is not currently Key points, so the frequency and meticulousness of the report are not as good as those of.
"Then..."
"I encountered similar situations when I was working on aviation engines..."
Chang Haonan patted the dust on his palm and continued: "So the solution should be similar to that of the AVF... Open holes or slots on the wall, arrange the suction electrode symmetrically on the side parallel to the power generation channel and the magnetic inductance line, and close and fit the exhaust cover plate. The suction vacuum cavity is formed, and the insulated connecting sections and exhaust connecting sections are connected to the two sides of the corrugated pipe through vacuum flanges, respectively, to discharge the thin layer of gas, that is, the surface layer, and the mainstream high-temperature fluid can be reoccupied. The wall surface increases the temperature of the adherent fluid, thereby generating a greater induced electromotive force. "
"As for whether it can reach more than 250MW of your estimated amount... it will only be known after trying it."
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(This chapter ends)