Opening game, American Tycoon

Chapter 184 Triple-expansion steam engine (third update, please subscribe)
On the way to the berth, the workers were pushing flatbed carts on the narrow-gauge small railway. The carts were filled with various shipbuilding materials such as regular planks, irons, and bolts. The steam hammer in the distance The sound of forging hammers from the workshop made the shipyard look chaotic.

After voluntarily giving way to the workers, they walked for a while, and the group arrived at the berth, where a clipper clipper boat with wooden shells got off the berth, where the workers were busy.

After arriving at the berth, Zhu Xianhai walked around to the stern of the ship. The planks on both sides of the stern have been removed, exposing the ship's ribs. The ship's ribs are made of wood, and the wooden ship's ribs are very thick. Through the ship's ribs, workers can be seen We are building a layer of cabins in the cabin.

"There is the power cabin."

said Philip Louth, coming from the other side of the boat.

"The original cabin affected the layout of the boiler, so it was necessary to redesign the cabin, but still encountered some problems. Although the "diagonal" steam engine produced by the shipyard can provide 600 horsepower, its weight and size are too large.
A bigger engine means added weight, increased displacement and loss of speed.Combined with the added coal bunker, expect a 50% reduction in cargo capacity, and unless there is a better, faster, more compact steam engine, my suggestion would be a 300 hp, or even a 150 hp steam engine...”

Once again Philip Lauth, a naval engineer, offered his advice.

"Sir, although it is very common to add steam engines to old ships, what they install is small steam engines, just to make up for the lack of sails, instead of using steam engines instead of sails as the main power, and its consumption The amount of coal is also huge! Even with 600 tons of coal loaded, the coal-fired voyage will not exceed 2000 nautical miles."

Philip Lauth's suggestion made Zhu Xianhai frowned. The reason why the steam engine was installed on the clipper ship was to increase the speed of the ship and increase the immigration speed.But right now, such modification seems to be a bit of a loss.

"So, the main problem is still the problem of the steam engine?"

After thinking about it, Zhu Xianhai said.

"What if we change to a new type of steam engine?"

"A new type of steam engine? I don't think there is a steam engine that can meet your needs, although every new steamer is launched now has a steam engine that is better, faster, and more compact than the previous one."

"The diagonal steam engine is definitely gone, but..."

Zhu Xianhai laughed.

"What about a triple-expansion steam engine?"

"Triple expansion steam engine?"

Philip wondered.

"What kind of steam engine is this?"

Almost after the steam engine was applied to trains and ships, as people studied steam in depth, they found that the Watt-type reciprocating piston steam engine had a great waste of thermal efficiency. After the steam worked once, it still contained The steam with huge energy is just discharged from the body and wasted in vain.

In the past few decades, some people have begun to develop some multi-cylinder steam engines that use steam to do work multiple times to drive steam engines. However, no one has yet proposed a clear principle and concept of multi-cylinder steam engines.The triple-expansion steam engine refers to a steam reciprocating machine in which the high-pressure steam coming out of the boiler expands three times in the high-pressure, medium-pressure, and low-pressure cylinders sequentially, converting the heat energy of the steam into mechanical work.

The invention of the triple-expansion steam engine, which uses the principle of three-time expansion to do work, has to wait another ten years, and its application on warships was even later in the 1880s.Although his application on warships was late, it was this triple-expansion steam engine with high thermal efficiency and low fuel consumption that changed the human navigation industry—it was it that brought the shipping industry to the steam age. advantage, completely eliminated the sail.

In the simulator, Nanhua's first ocean-going merchant ship used the triple-expansion steam engine just invented, and it was a domestic product manufactured through technology introduction. The reason why Zhu Xianhai boldly applied it to the ship was because he knew very well Its the best marine engine before the invention of the steam turbine.Not to mention merchant ships, in the era of ironclads and pre-dreadnoughts, he has always been the standard configuration of those warships, and even the famous "Liberty Ship" during World War II still used triple-expansion steam engines.

"A new type of steam engine,"

Zhu Xianhai pretended to smile mysteriously, and then said to Liang Mingwei.

"I can provide a technical document to the shipyard, and you can study it."

Where did the technical information come from?

Once again, Zhu Xianhai opened the system mall. Although the user level of the mall has not been upgraded, there are many more products. There are many products from the 1870s, and even products from the 1880s - that is also the time of the last long-term simulation , the time and space limit of the mall is limited to the simulation time.

Thanks to the "commodity upgrade" of the mall, in the past few months, Zhu Xianhai has purchased a lot of supplies from here, but what is the most purchased?
Books, of course—in the system mall, there are many more books printed by many publishing houses in Nanhua, from the most basic textbooks to natural science magazines, to technical books, there are all kinds of books.

Compared with other commodities offered in the mall, it is certain that these books are the most valuable possessions.

Although it is not possible to "wholesale", but with master books, simple "piracy" printing is not difficult at all.

Because of this, the problem of school textbooks that troubled Zhu Xianhai was easily solved. Not to mention primary school textbooks, hundreds of copies of technical school textbooks have been printed, even together with the "Chinese Dictionary" and "Chinese-English University". "Dictionary" and the like require time-consuming and laborious compilation of reference books, which are also directly reprinted.

Compared with counterfeit mechanical products, "pirated" books are simpler, and the wealth contained in these books is huge. They are the painstaking efforts of a generation of Nanhua people in the simulator, and even the hope of Zhu Xianhai's revenge. Because of this, for many leading He is cautious about technology and technical information.

After all, Nanhua's productivity is far behind that of Europe and the United States. Even if it can successfully turn advanced technology into products and export them to other countries, it is unlikely to make huge profits. After all, it is impossible for European and American countries to watch Nanhua use patents to make a lot of money.

They will also copycats and protect their own interests through patent lawsuits, just like the historical "aspirin" patent dispute. The US Patent Office and the courts have adopted delaying tactics until Bayer in Germany wins. At the time of the lawsuit, the [-]-year patent protection also expired.

The so-called "patent protection" has always had its "floating" space, and who can care about face in front of money.

Of course, what Zhu Xianhai is more worried about is that advanced technology will become a sharp weapon for imperial powers to attack Nanhua. After all, when productivity lags behind that of Europe and the United States, European and American countries can completely imitate Nanhua's products and give Nanhua greater strength on the battlefield. blow.After all, the mechanical technology of this year... Even the Qing Dynasty can imitate it, let alone the European and American powers, they want to imitate it, it is easy.

Even if you want to absorb those advanced technologies, you cannot do without foreign technicians!

Looking at some mechanical books on principles such as "Theory of Three-Expansion Reciprocating Steam Engine" in the mall, Zhu Xianhai still felt a little helpless!
It seems that the three-expansion machine will come out ahead of time...

(End of this chapter)