Homo sapiens.

Chapter 215 Potential Excavation
After listening to Huang Weida's introduction.

Several engineers finally knew the specific plan.

In fact, after entering the 21st century, ship technology has improved a lot compared to the last century, at least in terms of energy saving and emission reduction.

The main reason is that energy saving and emission reduction can reduce transportation costs. Shipping companies naturally like transport ships with high energy efficiency, which also encourages shipping companies to invest heavily in technological improvement.

"I have discussed some of the current cutting-edge technologies with several colleagues. There are four more suitable technologies, which are..."

Huang Weida took out his tablet computer and called up part of the information of the four technical solutions.

The four schemes are: low-speed large propeller, ultra-light hull, high-efficiency combined gas turbine unit, and exhaust gas and waste heat recovery system.

"The ultra-light hull has already been applied to this ship." Huang Weida pointed to the module hull on one side.

Everyone knows this technology very well.

Usually a 6500TEU container ship has a net load of 8 tons, an empty hull displacement of 2.4 tons, and a full-load displacement of 12 to 13 tons.

Among them, the empty ship displacement refers to the hull, equipment, lubricating oil, and fresh water, of which the hull is about 1.9 tons.

After switching to silicon-aluminum steel, the weight of the hull of the same specification will be reduced to about 1.2 tons, reducing the weight of the hull by 7000 tons.

The reason for this change.

The main reason is that the material density is different. The density coefficient of ordinary ship steel is about 7.5, while that of silicon aluminum steel is only about 4.8.

This part of the reduced dead weight of the hull can be converted into the load of the container, raising the load of 6500 standard containers to the upper limit of 8.7 tons.

It is equivalent to saving nearly 9% of transportation costs in disguise.

Huang Weida continued to introduce: "Low-speed large propellers are also one of the common methods for energy-saving renovation of many old ships, but there are technical barriers to the production technology of large propellers."

Hearing the technical threshold of large propellers, Eno immediately laughed: "We don't need to worry about this."

"Ha ha……"

"really."

Others didn't worry about that either.

The spare parts suppliers of other shipbuilding enterprises may have certain technical difficulties in producing qualified large propellers.

But the parts supplier of the New Luzon Shipbuilding Company is the new material of sea snails, not to mention large propellers, even super-large propellers can be produced, and their performance and service life are excellent.

"According to my simulation calculation results in the supercomputer, the arrangement of forward and reverse low-speed large propellers can reduce energy consumption by about 8%."

Eno touched his chin, and suddenly thought of a technology that has been popular in recent years: "Daewoo Shipbuilding and Deutschland are not experimenting with a technology called rotor sail? It seems that it can also save energy by about 8%."

"This technology does exist, but rotor sails are not suitable for container ships, and the scope of application is relatively narrow." Huang Weida spread his hands helplessly.

Everyone will understand when they think about it.

Container ships need to be loaded with containers, and there is not enough deck space for installing the relatively space-consuming rotor sails.

Ore carriers, cement carriers, grain carriers, passenger ships, oil tankers, etc., can be equipped with rotor sails.

This kind of technology is not difficult for the current New Luzon Shipyard, and it can even be done better. After all, it is difficult to think about the blessing of various new materials.

"As for the gas turbine and exhaust heat recovery system, this is actually a complete system. According to the current technology, it can probably reduce energy consumption by about 10%."

Eno nodded: "I have read the internal papers of this system, and it seems that the car company has already applied it."

"That's right, our set of technology is borrowed from Qingye Automobile Company, and at the same time added our improvement plan." Huang Weida explained with a smile.

"Is it a combined unit plan?" Yinuo obviously saw the key point.

Huang Weida's smile became even brighter: "Engineer Yinuo's eyes are like a torch."

His plan is not complicated. Taking advantage of the relatively small size of gas turbines and not requiring imported equipment, he changed the previous heavy-duty gas turbines into four sets of smaller gas turbines.

The purpose of this is to avoid the pain point of low speed and low efficiency of gas turbines.

The economic speed of cargo ships is around 11-13 knots. Although many cargo ships can reach the limit speed of more than 20 knots, in fact, no shipping company will choose high speed.

Because the high speed means that the energy consumption will be doubled several times, so the gain outweighs the loss.

Four medium-sized gas turbines were used instead, with two running at full capacity daily and two as spares.

And when you need to slow down, you can also turn off one of them, and the other will slowly reduce the power.

In case of equipment failure or acceleration, the backup gas turbine can be started.

In addition, the ship can also be equipped with a flywheel energy storage device for quickly starting the gas turbine, or emergency braking.

There is no need to introduce too much about the exhaust gas and heat recovery system, after all, Aoba Automobile has already applied it in this regard.

As for the waste gas and heat recovery system, Huang Weida is only a ship designer who can apply and give suggestions. The work of improving this system will be handed over to the researchers and engineers of Luzon Electric Company.

The only shortcoming of the current system is that the energy recovery efficiency of waste heat is too low, only less than 38%.

After research by Luzon Electric, they believe that the key to improving conversion efficiency and energy recovery efficiency lies in catalysts and catalytic systems.

As long as the efficiency of converting carbon dioxide and water vapor into methane can be improved, the efficiency of waste heat and energy recovery will increase.

Huang Weida actually knew very well in his heart that it wasn't that he was good, but that the company's technical reserves were too strong.

After various technologies are combined, there will often be complementary effects, and then the advantages will be further expanded.

For example, the compression of shipbuilding costs has increased the operational space of ship design, and there is a higher tolerance limit for the cost expenditure in the application of new technologies.

Another example is the localization of gas turbine technology, which has brought domestic gas turbines with high cost performance.

If it is still the same as before and can only import marine gas turbines at high prices from abroad, then Huang Weida would not dare to launch four medium-sized gas turbines.

Technological innovations in various production links and reductions in production costs will have an impact on the final product.

The large-scale cost effect brought about by Homo sapiens' systematic technological innovation is simply an earth-shaking change for the entire shipbuilding industry.

Now the New Luzon Shipbuilding Company is still digesting technology, integrating and expanding production capacity, and there are too many orders from internal brother companies, so it has not caused a huge impact on the global shipbuilding industry.

But this kind of dormancy cannot be hidden for too long.

Sooner or later, the New Luzon Shipbuilding Company will show its fangs and compete with the three major shipbuilding countries in East Asia.

This is unavoidable. Many industries around the world are becoming highly monopolized, and the winners must be a few.

The shipbuilding industry is just a microcosm of this era.

The industry competition in Asia is becoming more and more intense, and the situation in the Americas is becoming less and less optimistic.

It is mainly ABCD, which suffered continuous heavy losses last year. This year, there has been a huge gap in soybean planting.

However, the demand for grain and agricultural products in the Asian market did not increase significantly, and even dropped a little.

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(End of this chapter)