bookandnovel Chapter 420 Shenzhou! Ten times the efficiency of river transportation!
Chapter 420 Shenzhou! Ten times the efficiency of river transportation!
In fact, at the beginning, the data about the weight of the hull that the steam engine can drive was given by Daniel.
The smallest steam engine, capable of driving a boat of two hundred stone.
The largest steam engine, capable of driving a huge ship of more than 2,000 stones.
Coupled with the current and speed, it can be three or four times faster than ordinary ships.
If it is in terms of Daqin's promotion method, such data is certainly correct.
But they overlooked a problem.
Different power structures have completely different thrusts in the water!
At first, the paddle wheel drive proposed by Qiyu was advanced.
But only for Da Qin.
The advantages of this driving method are many, but there are also many disadvantages.
For example, it is difficult to maintain the course in the wind and waves.
The webbed plate on the paddle wheel is prone to slapping water when it enters the water, and it also produces 17 water-lifting phenomenon when it leaves the water, so the efficiency is low.
Although the improved version of the webbed paddle wheel eliminates this shortcoming, it is very easy to damage, and it is easy to entangle the water plants and cause the anchor to break down.
In addition, the mechanism itself is cumbersome, and it is easy to get out of control in the face of complex weather, so it is not the best choice for Su Yu.
After all, such an extremely advanced dynamic structure from the perspective of Daqin, in the eyes of a modern person like Su Yu, is simply...
lame!
Although the paddle wheel is good, there are still solutions that can perfectly replace it in modern times.
That's... propeller propulsion!
Ninety percent of modern large ships use this type of propulsion structure.
It can range from cruise ships of dozens or hundreds of tons to nuclear-powered aircraft carriers of hundreds of thousands of tons, although the driving energy and fuel are different.
But in essence, they all drive steam turbines to generate kinetic energy, which provides power for underwater propellers and propels ships to sail.
And now, Da Qin's first steam-powered vessel is no exception.
Under Su Yu's suggestion, the big ship in front of him was powered by a steam engine, and the propeller was rotated through the transmission structure to propel the ship to sail.
we can even say.
Such a structure, in a sense, it is not an exaggeration to say that this ship is a modern ship!
Compared with paddle wheel propulsion, the propeller is not very conspicuous in terms of complexity and size.
However, its simple structure, light weight and high efficiency can provide the maximum thrust of the ship while ensuring the minimum fuel consumption.
Even if it is hit by wind and waves, the propeller-driven boat can also ensure the heading.
The main thing is that propeller boats have high speed and are more flexible.
Such an advantage may not be seen in cargo ships.
But if it is placed on a warship, it will definitely be like a godsend.
This is also one of the reasons why modern ships basically use propellers as their main driving force.
Even if there is a slight difference, it is only the shape of the blades, as well as the structure and number of the propellers.
"It's almost time, let's go into the water. 35 Lao Zhao instructed the guard next to him.
"Here!
The guards stepped back with fists clasped, and then ran away quickly, igniting one of the two kicks placed on the pier.
This is the signal for the launch of the new ship today.
"..."
"when!!!"
The deafening explosion sounded across the wide Weishui and reached the slipway on the other side.
Inside the big ship on the slipway, after hearing the explosion, the crew pushed the purely mechanical control lever to start the ship directly.
In the high-power steam engine, the accumulated power spurted out.
The flywheel drives the transmission mechanism, and the kinetic energy is directly transmitted to the two propellers on the bottom of the water.
"Gulululu‥..."
There was a sound of empty cannons shattering from the water droplets, and the big ship shook, and then slowly started.
"Woooo..."
A loud whistle sounded from the steam engine in the cabin.
There were also bursts of black smoke from the towering chimney.
Seeing that the giant ship has successfully used the slipway, others can say it, but Qiyu and the craftsmen of the Mechanical Young Mansion are dumbfounded.
What propeller the size of that person alone can propel such a huge ship forward?
God!
Are you kidding them?
Could it be that the immortals lost their magic on that?
If he knew what Qiyu and others were thinking at this moment, Su Yu would definitely laugh out loud.
As a native of Daqin, how could they ever know the knowledge of fluid mechanics?
Since the 767 did not know, just such a small propeller, under the action of the current, will generate a strong thrust.
"Woooo..."
The whistle sounded long, and after the giant ship pulled out of the slipway, it increased its horsepower and started to speed up.
Coupled with the push of water flow.
Soon the whole ship left the sight of everyone at an astonishing speed.
Su Yu calculated based on the references from both sides of the strait.
This ship, which weighed more than 5,000 stones, had a speed of at least fifteen knots, a terrifying speed of nearly twenty knots!
What is the speed of today's Daqin Building Ship?
In the case of smooth water and good wind, the fourth and fifth festivals will also be in the sky.
However, this gigantic ship, whose weight was three times that of an ordinary building ship, was at least four times as fast in speed.
Four times!
Lao Zhao clenched his fists excitedly.
Three times the carrying capacity, four times the speed, and a single ship inside and outside can improve the river transportation efficiency by more than ten times.
This is simply a divine boat!!!.