Take Off My Aviation Era

Because of this, the Navy has paid more attention to the bidding and construction of the second phase of the West-East Gas Pipeline Project than other units.

It's just that their focus is not on China's 20 MW gas turbine, but on the improved DA-80 gas turbine of the Aviation Development Corporation.

This is not to say that the Navy does not value China's take-off products.

In fact, since the beginning of the new century, with the deepening of military reforms, the procurement of military equipment has changed a lot from the mandatory and task-based procurement in the 1980s and 1990s.

Incorporating the advanced practices of many western developed countries, such as investments like betting on both sides.

For example, the naval armament department has invested in China Ascendas and Aviation Development Corporation at the same time.

Therefore, no matter which company achieves results, the Navy has the priority to purchase.

The rest is to see which company can take the lead in producing the products required by the Navy.

Obviously, this is a competitive procurement model, which can not only improve efficiency, but also has an immeasurable boost to innovation.

Therefore, in some areas with relatively strong selectivity, the military is pursuing this procurement policy.

Back to the ship's gas turbine.

Obviously, the Aviation Development Corporation has come to the fore. As early as 2002, with the technical support of the Russian Aerospace Power Corporation, they imitated the DA-80 gas turbine. Ideal, but as the only 20 MW high-power gas turbine that can be put into practical use in China, DA-80 is still receiving high attention and praise, and it can be described as BUFF.

Several years have passed. Not only did the Aviation Development Corporation obtain the support of GE, but the Russian Aerospace Power Corporation was also not idle. Not only did the Ukrainian branch experts send the experts from the Ukrainian branch to the Aviation Development Corporation as consultants, they even went down in person to help the aviation industry. The head office solves the matching problem of related parts.

The Russian Aerospace Power Company is called for the friendship of comrades and brothers.

In fact, the Russian Aerospace Power Corporation is retreating, and is preparing to hide itself behind the scenes by eating patents and key spare parts, and lie down to make money.

Therefore, in recent years, the Aviation Development Corporation has done some hard work on DA-80, especially the DA-80T high-power gas turbine launched not long ago, which has a maximum power of 25 MW, which is equivalent to 33,525 horsepower.

Compared with the previous DA-80, the power of DA-80T is increased by 15%, fuel consumption is reduced by 20%, and maintainability and service life are enhanced.

Not only can it be used in a series of civilian fields such as energy pipeline transportation, power generation, petrochemical industry, etc.; its two parallel-driven 8000-ton guided missile destroyers have super-powered output with a speed of more than 30 knots, and they are also good choices for naval gas turbines.

It is itself a gas turbine project to equip the next generation of battleships in the Soviet era, coupled with the open supply chains of Russia and Ukraine, and the commendable efforts of the Aviation Development Corporation, the DA-80T gas turbine naturally attracts high attention from the navy.

As long as good performance can be achieved in the second phase of the West-East Gas Pipeline Project, the Navy’s bulk purchases are basically a high probability event that nails the board.

Because of this, the Aviation Development Corporation, which is aware of the criticality of this bidding, is more important than China's take-off from top to bottom. Not only will it take a share of more than 50 megawatts below 10 megawatts, it also expects to obtain about 30% of 20 megawatts. A contract for a watt-level high-power gas turbine.

Why is it said that it is anticipation rather than striving for it.

The reason is not simple. Just before the issuance of the tender for the second phase of the West-East Gas Pipeline Project, the Aviation Development Corporation and GE have met and discussed.

For the 20-megawatt high-power gas turbine, the Aviation Development Corporation takes 30%; GE takes 50%; the remaining 20% ​​is reserved for Siemens and Mitsubishi to show the openness and internationalization of the entire project.

As for China's take-off...Do they have a 20-megawatt gas turbine?

We must know that China's take-off is an independent innovation of aeroderivative fuel technology route, all independent and independent, insisting on pure localization, and they just obtained a relatively mature industrial gas turbine below 10 MW ten years ago.

How can it be possible to jump to the level of 20 megawatts in just ten years?

It is necessary to know that the development cycle of gas turbines is at least 15 years. Even if China takes off without food or drink, it will not be possible to complete the development of this level in 10 years.

Because of this, neither the Aviation Development Corporation nor GE, at the level of 20 MW, regard China Ascendas as an opponent.

This can be seen from the bidding documents for the second phase of the West-East Gas Pipeline Project. Only bids for gas turbines below 10 MW are offered to China, and there is no description of more than 20 MW.

As for the navy, let alone the frequent inspections and investigations of the DA-80T gas turbine production line of the Hangfa Corporation, but it is a silent attitude towards China Ascendas Aviation Power Co., Ltd. (Group).

Of course, with the ambition of the Aviation Development Corporation, we actually want to capture 50% of the share at the 20 MW level. However, the opponent is GE. Not only does the Aviation Development Corporation’s gas turbine technology and key supporting facilities of less than 10 MW. , The key is that the products GE has taken out this time are so powerful that there are no friends.

The shortlisted GE-2800 gas turbine adopts a brand-new technology called indirect cooling regenerative cycle, that is, on the basis of the traditional single-cycle gas turbine, an indirect cooling regenerative cycle device is added, so that the high-heat air flow generated by the gas turbine is renewed. Recycling promotes the secondary work of the internal device, thereby improving the overall thermal efficiency of the GE-2800 gas turbine.

According to GE, the overall thermal efficiency of the GE-2800 gas turbine is as high as 36%, which is a very high level in the world today.

It is necessary to know that the thermal efficiency of the early LM2500 equipped on the Type 052 guided missile destroyer is only 30%; the thermal efficiency of the DA-80T, which was upgraded with great efforts from the Aviation Development Corporation, has gradually reached 33%.

It can be said that the comprehensive thermal efficiency of the GE-2800 gas turbine can reach 36%, which is already unattainable. UU reading www.uukanshu.cóm

However, this is not the only advantage of the GE-2800 gas turbine. Its most commendable part is its fuel consumption. The unit fuel consumption rate is only 227 kg·per kWh.

It should be understood that the fuel consumption of a medium-speed diesel engine with tens of thousands of horsepower is only 210 kg·per kWh, and the GE-2800 gas turbine can achieve 227 kg·per kWh, which is very close to the fuel consumption of a diesel engine. .

Coupled with its own very excellent maintainability.

In terms of fuel consumption, it barely managed to achieve the DA-80T of 240 kg·kWh per kilowatt-hour with the effort of feeding.

Being pinched by someone, the product's technical indicators in all aspects are still so hip, even if the Aviation Development Corporation wants to deliberately target the lower midline, it will be beaten by others. After all, the GE-2800 gas turbine is lighter. , Better and stronger!

Being able to get 30% of the share privately is already a big bargain. What is there to dissatisfy the Aviation Development Corporation?