KR20230150541A - Superconducting power supply system and hydrogen propulsion hydrogen cargo carrier having the same - Google Patents

Abstract

A superconducting power supply system is provided by one embodiment of the present invention.
The superconducting power supply system according to an embodiment of the present invention includes a first tank storing liquefied hydrogen, a second tank storing liquefied natural gas, a power supply line supplying power, and a connection to the first tank. It includes a first fuel supply pipe that transfers hydrogen gas generated by vaporizing liquefied hydrogen, and a fuel transfer pipe that is connected to a second tank and transfers evaporation gas generated by vaporizing liquefied natural gas, and the power supply line is connected to the first fuel A superconducting effect may occur as it cools in contact with the supply pipe and fuel transfer pipe.

Description

Superconducting power supply system and hydrogen propulsion hydrogen cargo carrier having the same}

The present invention relates to a superconducting power supply system and a hydrogen carrier propelled by hydrogen. More specifically, it relates to a superconducting power supply system that generates a superconducting effect using evaporation gas generated in a tank and to a hydrogen carrier propelled by hydrogen. It's about.

In a situation where the supply and demand of alternative energy is urgently needed due to the depletion of fossil fuels, the hydrogen fuel market is expected to expand in the future, and accordingly, various technologies related to the storage and transportation of hydrogen are being developed.

Hydrogen can be stored in any form, whether gas or liquid, but from the perspective of storage and transportation, liquefied hydrogen is advantageous due to its relatively high energy density and transportation efficiency. However, liquefied hydrogen is a cryogenic fluid with a boiling point of about -253°C, and its specific gravity is as small as about 1/6 of that of liquefied natural gas (LNG), so its evaporation rate per volume (BOR; Boil Off Rate) is about 10 times that of liquefied natural gas. Because it is so high that it reaches twice as high, even if the tank is insulated, the liquefied hydrogen stored inside the tank will naturally evaporate during transportation, creating a large amount of boil-off gas (BOG). Evaporation gas is fundamentally difficult to solve because it is generated by phase change in the fluid due to energy transfer due to heat leakage from the tank itself and movement of the fluid due to the rocking of the ship. It is difficult to fundamentally solve the problem by increasing the pressure inside the tank to prevent evaporation of liquefied hydrogen. It causes a variety of problems, such as acceleration, so it must be dealt with appropriately.

Accordingly, there is a need for a power supply system and a ship structured to efficiently process the boil-off gas generated from the tank.

Republic of Korea Patent Publication No. 10-2020-0121934 (2020. 10. 27.)

The technical problem to be achieved by the present invention is to provide a superconducting power supply system that generates a superconducting effect using evaporation gas generated in a tank.

Another technical problem to be achieved by the present invention is to provide a hydrogen carrier propelled by hydrogen that generates a superconducting effect using boil-off gas generated in a tank.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A superconducting power supply system according to an embodiment of the present invention for achieving the above technical problem includes a first tank for storing liquefied hydrogen, a second tank for storing liquefied natural gas, and a power supply line for supplying power, A first fuel supply pipe connected to the first tank to transport hydrogen gas generated by vaporization of the liquefied hydrogen, and a fuel transfer pipe connected to the second tank to transport evaporation gas generated by vaporization of the liquefied natural gas. Including, the power supply line is cooled in contact with the first fuel supply pipe and the fuel transfer pipe to generate a superconducting effect.

The first fuel supply pipe and the fuel transfer pipe have a double pipe structure in which the first fuel supply pipe is located inside the fuel transfer pipe, and the power supply line may extend through the inside of the first fuel supply pipe.

The superconducting power supply system further includes a fuel cell connected to the first fuel supply pipe to receive the hydrogen gas and generate power, and the power supply line can transmit power produced by the fuel cell.

A hydrogen carrier propelled by hydrogen according to an embodiment of the present invention for achieving the above other technical problems includes a hull, the superconducting power supply system of claims 1 to 3 installed on the hull, and the fuel cell produced by the fuel cell. It includes a driving part that receives power and generates propulsion.

The fuel transfer pipe in contact with the power supply line may be reconnected to the second tank.

The hydrogen carrier propelled by hydrogen includes a second fuel supply pipe connected to the second tank to transfer the liquefied natural gas, a power generation module connected to the second fuel supply pipe to receive the liquefied natural gas and produce electricity, And it may further include an auxiliary power supply line that connects between the power generation module and the drive unit to supply power produced by the power generation module to the drive unit.

The auxiliary power supply line may be cooled in contact with the first fuel supply pipe and the fuel transfer pipe to generate a superconducting effect.

The power supply line and the auxiliary power supply line are each formed of a first power line passing through the inside of the first fuel supply pipe and a power cable including a superconducting cable cooled by the hydrogen gas, and are exposed to the outside of the first power line. It may include a second power line, and a connector connecting the first power line and the second power line.

The first fuel supply pipe and the fuel transfer pipe are each branched into a plurality, and the hydrogen carrier propelled by hydrogen includes a first buffer tank disposed in front of the fuel cell and into which the plurality of branched first fuel supply pipes join, It may further include a second buffer tank disposed at the front of the second tank and into which the plurality of branched fuel transfer pipes are joined.

The first fuel supply pipe and the second fuel supply pipe each include a heater that heats the hydrogen gas or the liquefied natural gas by exchanging heat with at least one of seawater, fresh water, or glycol water, and pressurizes the hydrogen gas or the liquefied natural gas. It may include a compressor.

According to the present invention, the cold heat of hydrogen gas is used to generate a superconducting effect and the evaporation gas is supplied to the fuel cell module to produce electricity, so hydrogen gas can be processed efficiently without wasting it and power loss is also reduced. This allows the ship to be operated economically. In particular, at least a portion of the power supply line that supplies power extends through the inside of the first fuel supply pipe through which hydrogen gas moves, and the first fuel supply pipe is located inside the fuel transfer pipe through which evaporation gas moves, thereby creating a superconducting effect and thermal insulation. Not only can the effect be maximized, but space utilization within the ship can also be increased.

1 is a diagram showing the operation of a superconducting power supply system according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1.
Figure 3 is a diagram showing the operation of a hydrogen carrier propelled by hydrogen according to an embodiment of the present invention.
Figure 4 is a diagram showing the operation of a hydrogen carrier propelled by hydrogen according to another embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, with reference to FIGS. 1 and 2, a superconducting power supply system according to an embodiment of the present invention will be described in detail.

The superconducting power supply system according to an embodiment of the present invention is a system that generates a superconducting effect to supply necessary power to demand, and can be installed on a hydrogen carrier propelled by hydrogen.

The superconducting power supply system uses the cold heat of hydrogen gas to generate a superconducting effect and supplies boil-off gas to a fuel cell module to produce power, so it can process hydrogen gas efficiently without wasting it and also reduces power loss. This allows the ship to be operated economically. In particular, at least a portion of the power supply line that supplies power extends through the inside of the first fuel supply pipe through which hydrogen gas moves, and the first fuel supply pipe is located inside the fuel transfer pipe through which evaporation gas moves, thereby creating a superconducting effect and thermal insulation. It has the feature of not only maximizing the effect but also increasing space utilization within the ship.

Hereinafter, with reference to FIGS. 1 and 2, the superconducting power supply system 1 will be described in detail.

FIG. 1 is a diagram showing the operation of a superconducting power supply system according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1.

The superconducting power supply system 1 according to the present invention includes a first tank 10, a second tank 20, a power supply line 30, a first fuel supply pipe 40, and a fuel transfer pipe 50. .

The first tank 10 is a tank that stores liquefied hydrogen, and its interior is sealed and insulated to be suitable for storage and transportation of ultra-low temperature liquefied hydrogen. The first tank 10 is, for example, a tank of a double structure including an inner tank, a cold insulation layer, and an outer tank, and the cold insulation layer can be maintained in a vacuum state and may include an insulating material with excellent thermal insulation properties. A first fuel supply pipe 40 is connected to the first tank 10.

The first fuel supply pipe 40 is a pipe that transports hydrogen gas generated by vaporizing liquefied hydrogen, and one end may be connected to the first tank 10 and the other end may be connected to a fuel cell 60, which will be described later. At least one heater 41 and a compressor 42 are installed on the first fuel supply pipe 40. The heater 41 heats the hydrogen gas with at least one of seawater, fresh water, or glycol water to the temperature required by the fuel cell 60, which will be described later, for example, 20°C to 40°C, and the compressor 42 Hydrogen gas heated in the heater 41 can be pressurized to the pressure required by the fuel cell 60. As the heater 41 and the compressor 42 heat and pressurize the hydrogen gas, the oxidation reaction of hydrogen in the fuel cell 60 can be performed more easily.

The fuel cell 60 is a device that is connected to the first fuel supply pipe 40 and produces power by receiving hydrogen gas. More specifically, it produces power by converting chemical energy generated by oxidation of gas into electrical energy. You can. The fuel cell 60 includes a fuel cell stack 61 and an inverter 62. The fuel cell stack 61 receives hydrogen gas from the first tank 10 and receives oxygen-containing air from an oxygen tank (not shown) or a blower (not shown) to generate electrical energy. . Here, air is not limited to general air consisting of about 80% nitrogen and about 20% oxygen that can be obtained in natural conditions. For example, the oxygen concentration may be higher or lower than general air. , it may contain some substances other than those found in general air. That is, air refers to a gas containing oxygen necessary for the fuel cell stack 61. The fuel cell stack 61 consists of an anode part (not shown) where the oxidation reaction of hydrogen occurs, a cathode part (not shown) where a reduction reaction of oxygen occurs, and a connection between the anode part and the cathode part to connect the anode part to the anode part. It includes a conductor (not shown) that allows electrons generated by the oxidation reaction of hydrogen to move to the cathode part, and an electrolyte is formed between the anode part and the cathode part to allow hydrogen ions generated by the oxidation reaction of hydrogen to move to the cathode part. This can be filled. Since the fuel cell stack 61 is a known technology, detailed description will be omitted. Since the electrical energy generated from the fuel cell stack 61 is in the form of direct current power, it can be supplied to the inverter 62 and converted. The inverter 62 converts the direct current power produced by the fuel cell stack 61 into alternating current power usable by the consumer A. Since it is a known technology, detailed description will be omitted.

The power produced by the fuel cell stack 61 is transmitted to the consumer A through the power supply line 30. The power supply line 30 is a line that supplies power and may include a first power line 31, a second power line 32, and a connector 33. The structure of the power supply line 30 will be described in more detail later.

The second tank 20 is a tank that stores liquefied natural gas, and may be sealed and insulated to minimize vaporization of the liquefied natural gas due to heat transmitted from the outside. The second tank 20 may be, for example, a membrane tank or a pressure C-type tank. If the second tank 20 is a pressure C-type tank, the installation cost increases, but the operating pressure is higher than that of a membrane tank, allowing an increase in pressure and temperature due to storage of boil-off gas generated by natural vaporization of liquefied natural gas. Not only can it withstand within a range, but the tolerable range is also large, allowing a larger amount of evaporative gas to be stored for a longer period of time. A fuel transfer pipe 50 is connected to the second tank 20.

The fuel transfer pipe 50 is a pipe that transfers boil-off gas generated by vaporizing liquefied natural gas, and one end and the other end may be connected to the second tank 20, respectively. That is, the boil-off gas discharged from the second tank 20 flows along the fuel transfer pipe 50, comes into contact with the power supply line 30, and then circulates back to the second tank 20.

The power supply line 30 is cooled in contact with the first fuel supply pipe 40 and the fuel transfer pipe 50, so that a superconducting effect may occur. To be described in more detail with reference to FIG. 2, the first fuel supply pipe 40 and the fuel transfer pipe 50 have a double pipe structure in which the first fuel supply pipe 40 is located inside the fuel transfer pipe 50, The power supply line 30 may extend through the inside of the first fuel supply pipe 40. The power supply line 30 extends through the inside of the first fuel supply pipe 40, and the first fuel supply pipe 40 is located inside the fuel transfer pipe 50, so the ultra-low temperature flowing outside the power supply line 30 The power supply line 30 is cooled by the hydrogen gas, thereby generating a superconducting effect. As a result, the electrical resistance becomes zero, thereby reducing power loss in the power supply line 30. At this time, the evaporation gas flowing through the fuel transfer pipe 50 located outside the first fuel supply pipe 40 blocks and insulates external heat, so the cold heat of the hydrogen gas flowing through the first fuel supply pipe 40 supplies power. It can be effectively transmitted to line 30.

As described above, the power supply line 30 may include a first power line 31, a second power line 32, and a connector 33. The first power line 31 includes a superconducting cable cooled with hydrogen gas and passes inside the first fuel supply pipe 40, and the second power line 32 is formed of a general power cable and extends to the outside of the first power line 31. may be exposed. For example, the second power line 32 extends to both sides of the first power line 31, one connects the inverter 62 and the connector 33, and the other connects the connector 33 and the demand source. (A) can be connected. Since the first power line 31 and the second power line 32 are electrically connected by the connector 33, the AC power converted by the inverter 62 can be easily supplied to the demand A.

Hereinafter, with reference to FIG. 3, the hydrogen carrier 100 propelled by hydrogen will be described in more detail.

Figure 3 is a diagram showing the operation of a hydrogen carrier propelled by hydrogen according to an embodiment of the present invention.

A hydrogen carrier 100 propelled by hydrogen according to an embodiment of the present invention includes a hull 2, a superconducting power supply system 1, and a driving unit 3.

The hull 2 forms the main body of the hydrogen carrier 100, which is propelled by hydrogen, and has a streamlined outer shape to minimize resistance due to ocean currents. The above-described superconducting power supply system 1, drive unit 3, second fuel supply pipe 70, power generation module 80, and auxiliary power supply line 90 are installed in the hull 2.

The superconducting power supply system 1 includes a first tank 10, a second tank 20, a power supply line 30, a first fuel supply pipe 40, a fuel transfer pipe 50, and a fuel cell 60. Included, and the description of each configuration is replaced with the above. The fuel cell 60 may further include a fuel cell stack 61, an inverter 62, and a switchboard 63.

The switchboard 63 is a device that receives AC power converted from the inverter 62 and distributes and controls it to each demand source, for example, the drive unit 3, which will be described later, and is used between the inverter 62 and the drive unit 3. It can be installed on the power supply line 30. Second power lines 32 are connected to both ends of the switchboard 63, and each second power line 32 may be connected to the first power line 31 through a connector 33. At this time, the first fuel supply pipe 40 and the fuel transfer pipe 50 can bypass the switchboard 63 through the connectors 33 respectively connected to both ends of the switchboard 63. The first fuel supply pipe 40, which bypassed the switchboard 63, passes through the heater 41 and the compressor 42 and is connected to the fuel cell stack 61, and the fuel transfer pipe 50 bypassed the switchboard 63. ) may be connected to the second tank 20.

The driving unit 3 receives the power produced by the fuel cell 60 to generate the propulsion force necessary for the operation of the ship, and can receive power produced by the fuel cell 60 through the power supply line 30. . The driving unit 3 can receive not only the power produced by the fuel cell 60 but also the power produced by the power generation module 80.

The power generation module 80 produces power by receiving liquefied natural gas, and may be a typical dual fuel engine (DF engine). The power generation module 80 receives liquefied natural gas from the second fuel supply pipe 70. The second fuel supply pipe 70 is a pipe that is connected to the second tank 20 and transports liquefied natural gas. One end may be connected to the second tank 20 and the other end may be connected to the power generation module 80. At least one heater 71 and a compressor 72 are installed on the second fuel supply pipe 70. The heater 71 heats the liquefied natural gas to the temperature required by the power generation module 80 by heat-exchanging the liquefied natural gas with at least one of seawater, fresh water, or glycol water, and the compressor 72 heats the liquefied natural gas heated in the heater 71. It can be pressurized to the pressure required by the power generation module 80. As the heater 71 and the compressor 72 heat and pressurize the liquefied natural gas, electric power can be easily produced in the power generation module 80.

The power produced by the power generation module 80 is supplied to the driving unit 3 through the auxiliary power supply line 90. The auxiliary power supply line 90 is connected between the power generation module 80 and the driving unit 3, and, like the power supply line 30, is in contact with the first fuel supply pipe 40 and the fuel transfer pipe 50 and is cooled to become superconducting. The effect may occur. More specifically, the first fuel supply pipe 40 and the fuel transfer pipe 50 have a double pipe structure in which the first fuel supply pipe 40 is located inside the fuel transfer pipe 50, and the auxiliary power supply line 90 It may extend through the inside of the first fuel supply pipe 40. At this time, as shown, the first fuel supply pipe 40 and the fuel transfer pipe 50 are branched and can contact the power supply line 30 and the auxiliary power supply line 90, respectively. In other words, the first fuel supply pipe 40 connected to the first tank 10 is branched and contacts the power supply line 30 and the auxiliary power supply line 90, respectively, and the fuel transfer pipe connected to the second tank 20 ( 50) is also branched and can be in contact with the power supply line 30 and the auxiliary power supply line 90, respectively. The auxiliary power supply line 90 extends through the inside of the first fuel supply pipe 40, and the first fuel supply pipe 40 is located inside the fuel transfer pipe 50, so that it flows outside the auxiliary power supply line 90. The auxiliary power supply line 90 is cooled by the ultra-low temperature hydrogen gas, thereby generating a superconductivity effect. As a result, the electrical resistance becomes zero, thereby reducing power loss in the auxiliary power supply line 90. At this time, since the evaporation gas flowing through the fuel transfer pipe 50 located outside the first fuel supply pipe 40 blocks and insulates external heat, the cold heat of the hydrogen gas flowing through the first fuel supply pipe 40 is used as auxiliary power. It can be effectively transmitted to the supply line 90.

The auxiliary power supply line 90 may include a first power line 91, a second power line 92, and a connector 93. The first power line 91 includes a superconducting cable cooled with hydrogen gas and passes inside the first fuel supply pipe 40, and the second power line 92 is formed of a general power cable and extends to the outside of the first power line 91. may be exposed. The first power line 91 and the second power line 92 may be electrically connected by a connector 93. In the drawing, the second power line 92 connected to the power generation module 80 is connected to one end of the first power line 91 through the connector 93, and the other end of the first power line 91 is connected to the power supply line 30. It is shown that the power produced by the power generation module 80 is connected to the first power line 31 and is indirectly transmitted to the driving unit 3 through the auxiliary power supply line 90 and the power supply line 30. It is not limited, and the connection structure of the auxiliary power supply line 90 may be modified in various ways. For example, the auxiliary power supply line 90 may be directly connected between the power generation module 80 and the driving unit 3.

Hereinafter, with reference to FIG. 4, a hydrogen carrier 100-1 propelled by hydrogen according to another embodiment of the present invention will be described in more detail.

Figure 4 is a diagram showing the operation of a hydrogen carrier propelled by hydrogen according to another embodiment of the present invention.

A hydrogen carrier 100-1 propelled by hydrogen according to another embodiment of the present invention has a first fuel supply pipe 40 and a fuel transfer pipe 50 each branched into a plurality, and a first fuel supply pipe 40a branched into a plurality. , 40b) further includes a first buffer tank 11 where the plurality of branched fuel transfer pipes 50a and 50b are joined and a second buffer tank 21. A hydrogen carrier 100-1 propelled by hydrogen according to another embodiment of the present invention has a first fuel supply pipe 40 and a fuel transfer pipe 50 each branched into a plurality, and a first fuel supply pipe 40a branched into a plurality. , 40b) is substantially the same as the above-described embodiment, except that it further includes a first buffer tank 11 where the plurality of branched fuel transfer pipes 50a and 50b are joined. same. Therefore, this will be mainly explained, but unless otherwise stated, the description of the remaining components will be replaced by the above-mentioned details.

The first fuel supply pipe 40 connected to the first tank 10 is branched into a plurality, one of which (40a) is connected to the connector (33d) disposed at the front of the driving unit (3), and one of which is connected to the power generation module (80). It is connected to a connector (not shown) disposed at the rear end, and either one (40b) may be connected to a connector (33b) disposed at the front end of the switchboard 63. At this time, the first fuel supply pipe (40a) connected to the connector (33d) disposed at the front of the driving unit (3) extends to the connector (33c) disposed at the rear of the switchboard (63) and does not bypass the switchboard (63). It can be joined to the first buffer tank 11, which will be described later. In addition, the first fuel supply pipe (40b) connected to the connector (33b) located at the front of the switchboard 63 extends to the connector (33a) located at the rear of the inverter 62 to join the first buffer tank (11). You can.

The first buffer tank 11 is a tank where a plurality of branched first fuel supply pipes 40 are joined, and may be placed at the front of the fuel cell 60.

The fuel transfer pipe 50 connected to the second tank 20 is branched into a plurality, one (50a) is connected to the connector (33d) disposed at the front end of the driving unit (3), and one is connected to the rear end of the power generation module (80). It is connected to a connector (not shown), and one of the connectors (50b) may be connected to a connector (33b) located at the front of the switchboard (63). At this time, the fuel transfer pipe (50a) connected to the connector (33d) disposed at the front end of the driving unit (3) extends to the connector (33c) disposed at the rear end of the switchboard (63) without bypassing the switchboard (63), as described later. It can be joined to the second buffer tank 21. In addition, the fuel transfer pipe 50b connected to the connector 33b located at the front of the switchboard 63 may extend to the connector 33a located at the rear of the inverter 62 and join the second buffer tank 21. .

The second buffer tank 21 is a tank where a plurality of branched fuel transfer pipes 50 are joined, and may be placed at the front of the second tank 20.

The first fuel supply pipe 40 and the fuel transfer pipe 50 are each branched and connected to different connectors 33a and 33d, so that cold heat from hydrogen gas and boil-off gas can be transmitted simultaneously in each section, thereby reducing power The superconducting effect can be generated more effectively in the supply line 30 and the auxiliary power supply line 90. In addition, the plurality of branched first fuel supply pipes 40 and fuel transfer pipes 50 are joined to the first buffer tank 11 and the second buffer tank 21, respectively, thereby supplying hydrogen gas to the fuel cell 60 and Boil-off gas recovery to the second tank 20 can be performed smoothly.

Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

1: Superconducting power supply system 2: Hull
3: Drive part
10: first tank 11: first buffer tank
20: second tank 21: second buffer tank
30: power supply line 31: first power line
32: second power line 33: connector
40, 40a, 40b: first fuel supply pipe 41: heater
42: Compressor 50, 50a, 50b: Fuel transfer pipe
60: fuel cell 61: fuel cell stack
62: Inverter 63: Switchboard
70: Second fuel supply pipe 71: Heater
72: Compressor 80: Power generation module
90: Auxiliary power supply line 91: First power line
92: second power line 93: connector
100: Hydrogen carrier propelled by hydrogen

Claims (10)

A first tank storing liquefied hydrogen;
A second tank storing liquefied natural gas;
A power supply line that supplies power;
A first fuel supply pipe connected to the first tank and transporting hydrogen gas generated by vaporizing the liquefied hydrogen, and
It includes a fuel transfer pipe connected to the second tank and transporting boil-off gas generated by vaporizing the liquefied natural gas,
A superconducting power supply system in which the power supply line is cooled in contact with the first fuel supply pipe and the fuel transfer pipe to generate a superconducting effect. According to claim 1,
The first fuel supply pipe and the fuel transfer pipe,
A superconducting power supply system in which the first fuel supply pipe has a double pipe structure located inside the fuel transfer pipe, and the power supply line extends through the inside of the first fuel supply pipe. According to clause 2,
It further includes a fuel cell connected to the first fuel supply pipe to receive the hydrogen gas and produce power,
The power supply line is a superconducting power supply system that transmits power produced by the fuel cell. hull;
The superconducting power supply system of paragraphs 1 to 3 installed on the hull, and
A hydrogen carrier propelled by hydrogen including a driving unit that generates propulsion by receiving power generated from the fuel cell. According to clause 4,
The fuel transfer pipe in contact with the power supply line is a hydrogen carrier propelled by hydrogen that is connected back to the second tank. According to clause 5,
A second fuel supply pipe connected to the second tank and transporting the liquefied natural gas,
A power generation module connected to the second fuel supply pipe to produce electricity by receiving the liquefied natural gas, and
A hydrogen carrier propelled by hydrogen further comprising an auxiliary power supply line that connects between the power generation module and the drive unit to supply power produced by the power generation module to the drive unit. According to clause 6,
The auxiliary power supply line is in contact with the first fuel supply pipe and the fuel transfer pipe and is cooled. A hydrogen carrier propelled by hydrogen that generates a superconducting effect. The method of claim 7, wherein the power supply line and the auxiliary power supply line are each:
A first power line passing through the first fuel supply pipe including a superconducting cable cooled by the hydrogen gas,
A second power line formed of a power cable and exposed to the outside of the first power line, and
A hydrogen carrier propelled by hydrogen including a connector connecting the first power line and the second power line. According to clause 7,
The first fuel supply pipe and the fuel transfer pipe are each branched into a plurality,
A first buffer tank disposed at the front of the fuel cell and into which the plurality of branched first fuel supply pipes join,
A hydrogen carrier propelled by hydrogen, further comprising a second buffer tank disposed in front of the second tank and into which the plurality of branched fuel transfer pipes are joined. The method of claim 6, wherein the first fuel supply pipe and the second fuel supply pipe each have,
A heater that heats the hydrogen gas or the liquefied natural gas by exchanging heat with at least one of seawater, fresh water, or glycol water;
A hydrogen carrier propelled by hydrogen including a compressor that pressurizes the hydrogen gas or the liquefied natural gas.