Han Yi's name is Li Fan, and the direction and train of thought are foolish, and the rest of the things will be easy to do.

For those who have such a rebellious bug as design expertise, with the beginning, the rest can be carried on.

According to Han Lao's guidance, since there is no foundation, it is better to give it a go and move towards the current highest technology. That is, the legendary dual-fuel ship engine.

Li Fanyu is no stranger to the concept of dual-fuel engine, which is actually an engine with diesel as the ignition fuel and combustible gas as the main fuel.

At present, the most used in research is diesel-natural gas dual-fuel engine.

Compared with oil, LNG has the characteristics of abundant reserves, convenient use and clean discharge. It is virtually free of harmful substances such as sulfides and tiny particles, and can effectively reduce nitrogen oxides and CO2 emissions by 90%, making it an ideal alternative energy source for the future.

What's more, gas is cheaper than marine diesel. In the state of long-term work, it is more friendly to the environment and more economical.

However, in this dual fuel that includes natural gas and marine diesel, Han Lao combined his own views and gave two branches of oil, that is, conventional marine diesel fuel and heavy fuel fuel.

During the process of oil, the lighter parts are separated first. Therefore, in the process of crude oil processing, gasoline, kerosene, and diesel will be produced in turn, and these three lighter oils, these three types of oil with relatively high combustion performance are collectively referred to as "fuel oil".

The last remaining heavier residue is called heavy oil, which is the legendary leftover tailing.

This kind of thing doesn't burn very well, but it burns. Therefore, it is commonly used for boiler fuel, heating furnace fuel, metallurgical furnace and other industrial furnace fuels.

The reason why this is specifically drawn is that the nature of using natural gas as a fuel is similar, and it is also to enhance the economy of the engine. It can meet the economic performance of the reclamation ship for a long time and reduce the difficulty of replenishment.

Therefore, according to Han Lao's guidance, the engine designed by Li Fanyu and Liu Qing together can actually use three fuels.

Previously, according to Liu Qing's idea, Zhengxin wanted to make achievements in the field of communication engines, and it was impossible for two separate products to form competitiveness and product advantages.

Therefore, it is better to take this opportunity to diffuse the four engines required by the Yishu project as the core, explore up and down, and make a series of products.

According to the requirements of the First Dredging Group, because of the need to carry out reclamation operations in the open sea, the engine power for the main propulsion must be large.

To meet the needs of navigation, the power of the main propulsion engine should not be less than 6000K.

The other two engines mainly provide power for the hydraulic pump and the cutter suction system, and the power shall not be less than 3000K in order to ensure the operation efficiency.

The other engine is to provide power for the lighting, communication, fire fighting, fresh water purification and other functions of the whole ship, and is used as a constant speed generator set, with a power of not less than 1500K.

Originally, according to Li Fanyu's meaning, the Shanshen I diesel engine that best meets the technical requirements of the first dredging group was magically modified, and the two 3000K power operation engines were solved first.

However, after being guided by Han Lao and fully considering Liu Qing's serialization suggestions, Li Fanyu decided to overturn the previous plan and start all over again.

In this way, although the energy paid is relatively large, it will lay a very good foundation for Zhengxin in the field of ship power in the future.

It's just that this kind of research and development is too much work.

Even with the support of design expertise and dozens of excellent engineers from the special equipment R&D department, Li Fanyu and Liu Qing still trapped themselves in the studio for a whole week to complete the 20.30.46 three bore series, L6.8, V12.16.18 each five models, covering the entire dual-fuel medium-speed marine engine for the needs of marine ships!

After making a considerable number of optimizations and improvements, it was officially put into testing.

In order to combine the power naming method of the previous special equipment R&D center, the new series of engines was named after the sea god by Li Fanyu.

In order to thank Academician Han Yiming for the ideological inspiration of the series of engines, the first generation of the series of aircraft was named Poseidon H.

H, naturally represents Academician Han Yiming.

Series engines can be fueled by gas, marine diesel or heavy fuel oil. And it can smoothly switch between various fuels during operation.

The independent liquid fuel system, designed by Liu Qing and optimized by Li Fanyu, can ensure that the output power remains unchanged during the switch from marine diesel to heavy fuel oil.

In gas mode, the engine is 35% more economically efficient than in fuel mode.

Carbon monoxide emissions can be reduced by about 75%, carbon dioxide emissions by about 20%, nitrogen oxide emissions can be reduced by 80%, and sulfide emissions can be reduced by 100%!

This is a standard that fully meets the Tier III standards of the International Maritime Organization.

As long as this standard is met, the theoretical Shanghai God H series dual-fuel engine can be applied to gas carriers, offshore supply ships, chemical tankers, icebreakers and other ocean-going ships!

And what's even more exciting.

After a series of intense tests, the Poseidon H series engine has come up with parameters that are enough to make any Chinese shipbuilding industry practitioner scream!

The series engine Poseidon H20, which is satisfied with constant speed generator sets or smaller variable speed machinery, is divided into three models according to the number of cylinders and layout.

The maximum continuous power of Poseidon H206L is 1110K, 8L is 1520K, and 10L can reach 1850K!

This kind of performance, if used to generate electricity, can fully meet the needs of a village with 70 to 100 households, and every household has modern household appliances!

It's just a small power station.

The Poseidon H34 series, which meets the needs of the ship's propulsion host and generator set, is divided into four models.

The maximum continuous power of the 6L is as high as 3000K, and as the most basic model in this series, its performance has far exceeded that of the Sanshen I designed by Li Fanyu before!

And 8L, 10L, 12V, it has reached an astonishing 4000, 5000, 6000K!

Among them, the high-end engine of this series, that is, Poseidon H3412V, 6000K power performance, has been fully qualified for any 10,000-ton giant ship as the main propulsion engine.

The first dredging group for the main power requirements of the reclamation vessel, this engine can also be met.

But it is clear that with the help of a burst of inspiration and design expertise, Li Fanyu did not stop there.

So, in Zhengxin's test laboratory, the engineers saw the giant among the engines, the king of the giants - that is, the Poseidon H46 series, which can shock a group of people just from the appearance!

Unlike the previous engines, there was also such a number of cylinders as 6,8. The engine of this series starts with 10 cylinders!

The lowest-performance model, which is the only L-layout product in the series of engines, the Poseidon H46L10, has a power of more than 10,000 - reaching an astonishing 10,500K!

The 12V, 14V and 16V engines have reached the super power of 14500K, 16800K and 18800K respectively!

Although this series of engines has not been tested for shipbuilding, it has reached the international leading standard in terms of parameters alone!

As soon as the test here was over, Li Fanyu immediately notified the Tongyang Dredging Group of the news.

In the face of Zhengxin's research and development speed of more than two weeks, Liu Shengyuan, the chief engineer of Tongyang Dredging who was in charge of the project, had deep doubts.

So, after some discussion, Liu Shengyuan personally invited ship engine experts from Zichai, Yuchai and Weichai to form a delegation.

In the second week of Yu Zhengxin's first successful test of the Poseidon H series, he came to Tiancheng.