KR101371955B1 - Internal combustion engine generating system using hydrogen - Google Patents

Abstract

The present invention relates to an internal combustion engine generating system using hydrogen that electrolyzes water to generate the hydrogen and supplies it to an internal combustion engine as a fuel to drive the internal combustion engine and thus generate electricity. The system includes a hydrogen generating unit (100) generating the hydrogen by electrolyzing the water; an internal combustion engine (200) rotated by supply of the hydrogen from the hydrogen generating unit (100) as the fuel to generate a rotating force; a generator (300) transmitted with the rotating force from the internal combustion engine (200) to generate the electricity; and a control unit (400) controlling operation of the hydrogen generating unit (100), the internal combustion engine (200) and the generator (300) and controlling the output of the electricity generated by the generator (300). Since the hydrogen is used as the fuel of the internal combustion engine, it is possible to improve its generation efficiency. [Reference numerals] (140) Electronic control device

Description

Internal combustion engine power generation system using hydrogen {INTERNAL COMBUSTION ENGINE GENERATING SYSTEM USING HYDROGEN}

The present invention relates to an internal combustion engine power generation system, and more particularly, to generate hydrogen by electrolyzing water and supplying the generated hydrogen to fuel of the internal combustion engine to drive the internal combustion engine to produce electric power using hydrogen. It is about an engine power generation system.

A power generation system is a system that produces electricity by converting certain energy into electrical energy. In general, power generation generates electromotive force by electromagnetic induction by rotating a permanent magnet or an electromagnet in a coil, and converts generated electromotive force into electrical energy. This is used. To generate such power, kinetic energy that rotates a generator is required. The source of the kinetic energy is called a power generation resource. Hydroelectric power generation, thermal power generation, nuclear power generation, tidal power generation, wind power generation, geothermal power generation, It is classified into solar thermal power generation.

Thermal power, hydropower, and nuclear power among these power generation resources have problems such as exhaustion of power generation resources and environmental pollution due to limited power generation resources, and there is a problem of enormous cost for initial facility installation and operation. In addition, wind power, tidal power, solar power generation, etc. are affected by weather, such as weather, there is a problem in that it is not only a problem to use as a regular power resource, but also takes a lot of initial installation cost. According to these problems, recently, there is a tendency to develop power resources that can be used indefinitely without environmental pollution, such as solar power generation or wind power generation.

On the other hand, in recent years, a system for generating power using hydrogen has been developed, and such a hydrogen power generation system is a patent registration No. 0863725 "hydrogen generator and fuel cell power generation system". The registered patent produces hydrogen by electrolyzing water present in abundance on the earth, and supplying the produced hydrogen to fuel of a fuel cell so as to convert a chemical energy of hydrogen into electrical energy in a fuel cell to produce a direct current. Doing.

However, since the registered patent generates electricity by converting chemical energy of hydrogen into electrical energy through a fuel cell, there is an advantage that infinite power generation is possible without mechanical pollution without discharge of pollutants, but fuel is directly used for power generation and heat and electricity. Since it is converted into energy, the consumption of fuel is as big as the heat and electric energy produced. That is, the registered patent requires electricity in order to produce hydrogen used as fuel of the fuel cell. Since the amount of electricity required for hydrogen production is larger or similar to the amount of electricity produced through the fuel cell, its efficiency is not good. At present, it has not been put to practical use, and accordingly, technologies for improving power generation efficiency by using hydrogen produced as a fuel for fuel cells have been continuously studied.

The present invention has been proposed to solve the problems of the prior art, an object of the present invention is to produce hydrogen by electrolysis of water and to supply the produced hydrogen to the fuel of the internal combustion engine with high power generation efficiency to generate power To provide an internal combustion engine power generation system using hydrogen.

Another object of the present invention is to use a portion of the power produced through the internal combustion engine using hydrogen as a fuel to decompose water to produce hydrogen to enable hydrogen production by self-generation without a separate external power source To provide an internal combustion engine power generation system.

In order to achieve the above object, an internal combustion engine power generation system using hydrogen according to the present invention includes: a hydrogen generator for producing hydrogen by electrolyzing water; An internal combustion engine driven by receiving hydrogen from the hydrogen generator as fuel and generating rotational force; A generator which receives the rotational force from the internal combustion engine and is driven to produce electricity; And a control device that controls the operation of the hydrogen generator, the internal combustion engine, and the generator, and controls an external output of electricity produced through the generator.

The hydrogen generator is an internal combustion engine that produces hydrogen by electrolyzing water through a storage battery for storing power, a water supply device for supplying water, and an output power of a storage battery or a generator under control of the controller. It comprises a hydrogen generator for supplying.

Here, the control device is operated by supplying the power stored in the battery to the hydrogen generator during the initial operation of the hydrogen generator, the power generated when the internal combustion engine and the generator is driven by the hydrogen produced by the hydrogen generator to produce electricity It is preferable to supply to the hydrogen generator, and to charge the storage battery through the power supply produced.

On the other hand, the water supply device includes a water supply tank for storing water, a water supply valve for adjusting the amount of water flowing into the water supply tank, and a water level control device for controlling the water supply valve so that the water level of the water supply tank is kept constant; A water supply motor is provided for supplying water stored in the water supply tank to the hydrogen generator through a water supply pipe, and a filter for purifying water is installed in the water supply pipe.

In addition, the regular hydrogen generator has a water supply valve for controlling the amount of water supplied from the water supply device, a water level control device for controlling the water supply valve so that the level of the hydrogen generator is kept constant, and the current required to electrolyze the water A current regulator for adjusting a value, a gas pipe for supplying hydrogen generated by electrolysis of water to the internal combustion engine, and a gas shutoff valve installed in the gas pipe to block hydrogen supply from the internal combustion engine. The filter is installed to remove moisture of the hydrogen gas.

The internal combustion engine is started by receiving initial driving power from a starting motor driven by receiving power from a storage battery, and preferably repeats a four-stroke cycle with hydrogen as fuel after the initial starting.

The internal combustion engine power generation system using hydrogen according to the present invention can increase power generation efficiency by generating hydrogen by electrolyzing water and supplying the produced hydrogen as fuel to the internal combustion engine to generate power, and storing hydrogen produced separately. Instead of being supplied directly to the internal combustion engine, it is possible to escape stable storage costs and explosion risks that may occur when hydrogen is stored, thereby enabling stable operation.

In addition, the present invention is to drive the internal combustion engine because it does not need a separate external power supply after the power supply required for the initial hydrogen production by electrolysis of water using some of the electricity produced through the internal combustion engine to produce hydrogen. There is an economical effect that does not require additional fuel production costs.

1 is a conceptual diagram illustrating a process of generating hydrogen by electrolyzing water according to the present invention;
2 is an overall conceptual diagram of an internal combustion engine power generation system using hydrogen according to an embodiment of the present invention;
3 is an operating state diagram of an internal combustion engine power generation system according to the present invention;
4 is a flow chart of supplying hydrogen fuel generated through the hydrogen generator according to the present invention;
5 is a conceptual diagram of the operation of an internal combustion engine according to the present invention;
6 is a conceptual diagram of the operation of the generator according to the present invention;
7 is a flowchart illustrating the electricity production process of the internal combustion engine power generation system according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the characteristics of hydrogen used as the power generation fuel of the present invention will be described.

Hydrogen is a colorless and odorless gas, as is well known, and has the characteristic element number 1 and atomic weight of 1.0097, which is the lightest of the elements known so far and its specific gravity is only 1 / 14.5 of air. Such hydrogen has been mostly used as a raw material for producing ammonia and methanol, but in recent years, its consumption is increasing as a synthetic raw material for the petrochemical industry. These hydrogens are the most popular fuels in recent years in that they can drastically reduce air pollution caused by hydrocarbon fuels.

The thermal characteristic of hydrogen fuel is that the specific heat is very large. Under normal atmospheric pressure, the specific pressure specific heat is 14.9 kJ / kg · K, which is 14.5 times the specific pressure specific air pressure. The specific heat ratio is 1.41 similar to air, which is lower than that of Ne, He, which is the monoatomic molecule. However, Ne and He cannot be used as fuel as inert elements, so hydrogen is the most thermally efficient among the fuels available. It can be called fuel. This hydrogen is a binary atom, the molecular formula is simple and the physical properties are almost constant, and has a somewhat different characteristics from the conventional hydrocarbon-based fuel, such hydrogen has the following advantages.

(1) Since hydrogen can be produced using any energy from water, it can be said that the amount is almost infinite fuel.

(2) Hydrogen is one of the cleanest fuels compared to any other fuel because hydrogen is a binary atom with a simple combustion product. In the face of increasing regulations on CO2, the solution is to use a carbon-free fuel, and hydrogen fuel is the most suitable.

(3) Since hydrogen has a high flammability limit (λ = 10 to 0.14) and a small minimum ignition energy, it is suitable for a spark ignition engine, and stable combustion is possible even when a lean mixer is used.

(4) Hydrogen fuel is colorless and odorless and difficult to detect, and easily explodes by small sparks. However, hydrogen itself is non-toxic and has a low specific gravity, so it is easily diffused in the air, so it is relatively safer than propane or other gas when leaked outside.

While hydrogen has these advantages, it also has the following disadvantages.

(1) Easily ignited hydrogen leads to an increase in thermal efficiency in the low load region where lean mixers are used, but leads to premature ignition in high load regions where rich mixers are used, and to premature ignition and Backfire is likely to occur.

(2) The low calorific value of hydrogen is 2.7 times that of gasoline, but the theoretical air fuel ratio of hydrogen is 34.1: 1 in weight ratio and 15.1: 1 in gasoline, so the calorific value when the hydrogen-air theoretical premixer is inhaled in the same cylinder. Is reduced by 15% compared to gasoline. However, when directly injecting hydrogen gas into the cylinder, the amount of intake air increases, resulting in an increase of about 20% more than that of gasoline.

(3) Since hydrogen self-ignition temperature is higher than that of diesel oil, compression ignition is difficult.

(4) The exhaust composition of hydrogen is simple and there is almost no emission of CO, HC and smoke. However, since the adiabatic flame temperature of hydrogen is slightly higher than that of other fuels, the production of nitrogen oxides NOx is rapidly increased.

(5) Since hydrogen is secondary energy as well as electric power, not only problems such as storage (storage) until mass production of fuel cells using hydrogen fuel, but also problems on the fuel supply side such as mass production technology and storage / transportation technology of hydrogen. It remains a challenge to be solved.

(6) Since the ignition limit is much thinner than the theoretical equivalent ratio, it is easy to ignite in a high temperature source such as a flame. Hydrogen exposed from the tank is considered to be released as H 2 O as an oxidation catalyst that operates at temperatures close to room temperature.

(7) Care must be taken in the design and processing of airtight openings, such as valves, because the molecules are small and easily leak from narrow gaps.

(8) Since hydrogen is colorless and odorless, it is necessary to develop a detection method thereof.

In the present invention, hydrogen having such characteristics is used as a fuel for an internal combustion engine to generate electricity. As is widely known, hydrogen is a form in which two hydrogen molecules (H2) and one oxygen molecule (O) are combined on the earth. It is present as water (H 2 O). Therefore, when water is electrolyzed in reverse, hydrogen and oxygen are separated again. In the present invention, the hydrogen is separated and used to generate electricity through the power generation fuel of the internal combustion engine.

1 is a conceptual diagram illustrating a process of generating hydrogen by electrolyzing water according to the present invention.

As shown in FIG. 1, the electrolysis of water occurs in a pair of anodes and cathodes separated by a diaphragm DIAPHRAGM, and the diaphragm, the anode and the cathode are fixed by an insulator CELL FRAME to form an electrolytic cell.

In this structure, when power is supplied to the cathode and the anode to cause electrolysis of water, hydrogen is generated at the cathode and oxygen is generated at the anode as follows.

Cathode: 4H₂O + 4e--=> 2H₂ + 4OH-

ANODE: 4OH--=> O₂ + 2H₂O + 4e

Total reaction: 2H₂O-=> 2H₂ + O₂

In the present invention, when water is electrolyzed through the above process to generate hydrogen at the cathode, the generated hydrogen is supplied to the fuel of the internal combustion engine to drive the internal combustion engine, and the generator is generated through the rotational force generated by the internal combustion engine. To generate electricity. In addition, when electricity is produced through the generator, by using some of the electricity generated to be able to electrolyze the water so that the self-power generation can be made.

2 shows an overall conceptual diagram of an internal combustion engine power generation system using hydrogen according to an embodiment of the present invention.

As shown in FIG. 2, the internal combustion engine power generation system according to the present invention supplies a hydrogen generator 100 for generating hydrogen by electrolyzing water, and supplying hydrogen generated through the hydrogen generator 100 as fuel. Received and driven internal combustion engine 200, the generator 300 receives power from the internal combustion engine 200 to generate electricity to produce electricity, the hydrogen generator 100 and the internal combustion engine 200 and generator 300 It comprises an electronic control device 400 for controlling the operation of the).

The hydrogen generator 100 is a device for generating oxygen and hydrogen by electrolyzing water under the control of the control device 400, the hydrogen generated through the hydrogen generator 100 is the internal combustion engine through the gas pipe 200 will be supplied.

The internal combustion engine 200 is a device that is driven by the hydrogen supplied from the hydrogen generator 100 as a fuel to generate a rotational force, the internal combustion engine 200 is powered from the starting motor under the control of the control device 400 After receiving the initial start, the four stroke cycle of intake / compression / explosion / exhaust of hydrogen as fuel is repeated to reciprocate the piston and transfer it to the crankshaft to generate rotational force.

The generator 300 is a device for generating power by receiving the rotational force generated by the drive of the internal combustion engine 200, the generator 300 is connected to the rotational shaft of the internal combustion engine 200 through a belt or chain and the like. It receives the and rotates the rotor in accordance with the transmitted torque to generate electricity by electromotive force.

The control device 400 controls the operation of the hydrogen generator 100, the internal combustion engine 200 and the generator 300, and controls the external output of the power generated by the generator 300. In addition, the control device 400 supplies some of the power generated through the generator 300 to the hydrogen generating device 100 so that the hydrogen generating device 100 generates its own power without an external power source after initial startup. By controlling the electrolysis of water to produce hydrogen.

Figure 3 shows an operating state diagram of the internal combustion engine power generation system according to an embodiment of the present invention.

As shown in FIG. 3, the internal combustion engine power generation system according to the present invention includes a hydrogen generator 100 for generating hydrogen, an internal combustion engine 200 and a generator 300 driven and generated through hydrogen, and the hydrogen. The control device 400 for controlling the generator 100, the internal combustion engine 200 and the generator 300 is provided.

The hydrogen generator 100 includes a water supply device 110 for receiving water from the outside and storing the water, a hydrogen generator 120 for generating hydrogen by electrolyzing water received from the water supply device 110, It includes a storage battery 130 for supplying the initial power for the electrolysis of water to the hydrogen generator 120.

The water supply device 110 controls the water supply container 111 for storing the water supplied from the outside, the water supply valve 112 for adjusting the amount of water flowing into the water supply device 110, and the water supply valve 112 Water level control unit 114 for maintaining a constant level of the water supply tank 111 and the water supply motor 113 for supplying the water stored in the water supply tank 111 to the hydrogen generator 120 through the water supply pipe 115 It is provided. In addition, the water supply pipe 115 for supplying the water of the water supply device 110 to the hydrogen generator 120 is provided with a filter 116 to purify the water.

The hydrogen generator 120 is a hydrogen generator body 121 for generating hydrogen by electrolyzing the water supplied from the water supply device 110, and the water supply pipe 115 to adjust the amount of water supplied from the water supply device (110). And a water level control device 123 for maintaining a constant water level of the hydrogen generator main body 121 by adjusting the opening degree of the water supply valve 122 and water generated by electrolysis. In order to control the amount of hydrogen to adjust the current value to adjust the current value 127, the gas pipe 125 for supplying the hydrogen generated through the hydrogen generator 120 to the internal combustion engine 200, and the gas pipe 125 Is installed in the gas shutoff valve 124 for blocking the supply of hydrogen supplied to the internal combustion engine 200 is provided. In addition, the gas pipe 125 for supplying the hydrogen generated from the hydrogen generator 120 to the internal combustion engine 200 is provided with a filter 126 for removing the water of hydrogen.

The storage battery 130 is a device for supplying initial power used to generate hydrogen by electrolyzing water in the hydrogen generator 120, the storage battery 130 is a hydrogen generator 120 under the control of the control device 400 In the initial operation of the) to supply power to the hydrogen generator (120). In addition, when the power generation is made according to the driving of the generator 300, the storage battery 130 is charged by receiving a portion of the electricity output from the generator 300 under the control of the control device 400.

4 shows a flow chart of the hydrogen fuel generated through the hydrogen generator, the water supplied through the water supply pipe 115 of the water supply device 110 is purified through the filter 116, the hydrogen generator 120 Hydrogen generated through the electrolysis of water in the hydrogen generator 120 is supplied to the internal combustion engine 200 as fuel as the water is removed through the filter 126 of the gas pipe 125.

The internal combustion engine 200 is a device for generating a rotational force by driving the hydrogen supplied from the hydrogen generator 120 as a fuel, Figure 5 shows a conceptual diagram of the operation of the internal combustion engine according to the present invention.

As shown in FIG. 5, the internal combustion engine 200 has a piston 220 which repeats vertical up and down movement inside the cylinder 210, and is connected to a lower portion of the piston 220 so that the piston 220 moves up and down. And a crank shaft 230 for converting the motion into a rotational motion, and an ignition plug 211 for igniting and exploding the hydrogen fuel compressed by the piston 220 inside the cylinder 210. In addition, an upper portion of the cylinder 210 is formed with an intake pipe 212 for supplying hydrogen fuel inside the cylinder 210 and an exhaust pipe 213 for discharging the gas combusted in the cylinder 210.

The internal combustion engine 200 having the above configuration is the initial operation is made by the starting motor 250, the starting motor 250 is a crank shaft of the internal combustion engine 200, the motor shaft is a gear, clutch or belt, etc. It is connected to 230 and transmits power. When the crank shaft 230 is rotated by the starting motor 250, the piston 220 reciprocates up and down inside the cylinder 210, thereby performing intake, compression, explosion, and exhaust of hydrogen fuel. Done. For the explosion, the spark plug 211 receives power from the storage battery 130 and ignites the compressed hydrogen fuel by ignition under the control of the control device 400. Then, the internal combustion engine 200 starts the starting motor 250. Even without the power of), the explosive force of the hydrogen fuel causes the four-stroke cycle of intake, compression, explosion, and exhaust to be repeated. The driving of the internal combustion engine 200 rotates the crankshaft 230 according to the reciprocating motion of the cylinder 210, and the rotational force of the crankshaft 230 is transmitted to the generator 300.

The generator 300 is a device for generating electricity by using the rotational force transmitted from the internal combustion engine 200, Figure 6 shows a conceptual diagram of the operation of such a generator.

As shown in FIG. 6, the generator 300 is configured to generate electricity by generating electromotive force while the rotor 310 rotates between stators 320 forming a magnetic field through a magnet. The rotor 310 of the generator 300 is directly engaged with a crank shaft 230 of the internal combustion engine 200 and gears, clutches, belts, or the like, and receives a rotational force, and is generated as the rotor 310 rotates. The electricity is output to the outside through the output terminal under the control of the control device 400. Since the structure of the generator 300 follows the structure of a general alternator or a direct current generator, a detailed description thereof will be omitted.

The control device 400 is an electronic control device 400 for controlling the operation of the above-described hydrogen generator, the internal combustion engine 200 and the generator 300, the control device 400 is the water supply of the water supply device 110 Control, water electrolysis and hydrogen supply control of the hydrogen generator 120, charging and discharging control of the storage battery 130, drive control of the internal combustion engine 200 through the starting motor 250 and the spark plug 211, generator 300 It performs functions such as power generation, output power control, and system internal temperature control. In addition, the control device 400 monitors the operating state of the hydrogen generator 120, the hydrogen gas does not occur normally, generates an error signal to warn, monitor the output power of the generator 300, such as overcurrent or overvoltage If this occurs, it warns and cuts off the power output of the generator 300 to protect the system.

Hereinafter, a process of producing electricity through the internal combustion engine power generation system according to the present invention having the above configuration will be described.

7 is a flow chart showing the electricity production process of the internal combustion engine power generation system according to an embodiment of the present invention.

Step S110: First, when the system is turned on, water is supplied to the hydrogen generator 120 through the water supply device 110, and the water supplied to the hydrogen generator 120 through the water supply device 110 is a water supply pipe ( The water is purified through the filter 116 installed at 115, and this water is supplied until the water level of the hydrogen generator 120 reaches the set water level stably. Thereafter, the water supply device 110 adjusts the level of the hydrogen generator 120 so that the level of the hydrogen generator 120 can be maintained constant.

Step S120: When the water supplied through the water supply device 110 reaches the set level of the hydrogen generator 120, the hydrogen generator 120 electrolyzes water to generate hydrogen. The initial power used to electrolyze the water is supplied from the storage battery 130 under the control of the control device 400, and when the generator 300 operates to generate power, output power of the generator 300 is generated. Supplied through. The amount of hydrogen generated through the hydrogen generator 120 is adjusted according to the current controlled by the current regulator 127.

Steps S130 and S140: When hydrogen is generated according to the operation of the hydrogen generator 120, the generated hydrogen is supplied to the internal combustion engine 200 through the gas pipe 125 (S130) and the internal combustion engine through the supplied hydrogen fuel. 200 is operated (S140). The internal combustion engine 200 receives initial power from the starting motor 250 driven by the control device 400 to reciprocate the piston 220 provided in the cylinder 210, and reciprocates the piston 220. Hydrogen fuel supplied into the cylinder 210 in accordance with the movement is exploded by the ignition of the spark plug 211 to repeat the four-stroke cycle. The spark plug 211 is supplied with power from the battery 130 to ignite, and the operation of the spark plug 211 is controlled by the control device 400. In addition, the control device 400 adjusts the rotational force transmitted by the generator 300 by adjusting the RPM of the internal combustion engine 200 according to the power generation efficiency of the generator 300.

Step S150, S160: the rotational force generated by the drive of the internal combustion engine 200 is transmitted to the generator 300 (S150), the generator 300 is a rotor 310 through the rotational force received from the internal combustion engine 200 Is rotated inside the stator 320 to generate electricity according to the electromotive force.

Step S170: The electricity generated by the generator 300 is output to the outside through the output terminal according to the control of the control device 400, if the output power does not meet the reference or abnormality occurs the control device 400 Will shut off the output power and generate a fault alarm.

Step S180: On the other hand, when the power is normally produced and output by the generator 300, the control device 400 supplies a part of the output power to the storage battery 130 and the hydrogen generator 120 to charge the storage battery 130. At the same time, the power required to drive the hydrogen generator 120 is supplied.

Step S190: The hydrogen fuel production through the electrolysis of water and the power generation process through the hydrogen fuel are repeated until the system is terminated, and during this series of processes, the controller 400 maintains the internal temperature of the system at a set temperature. The internal temperature is controlled by using a heater or a fan.

As described above, the internal combustion engine power generation system using hydrogen according to the present invention produces hydrogen by electrolyzing water, drives the internal combustion engine 200 with the hydrogen produced as fuel, and the rotational force according to the driving of the internal combustion engine 200. By transmitting to the generator 300 to operate the generator 300 it is possible to produce electricity. In addition, by charging the storage battery 130 through some of the electricity produced by the generator 300, and to be used to electrolyze the water can be a continuous power generation by the self-generation after the drive of the generator 300.

On the other hand, in the case of generating power by driving an internal combustion engine power generation system using such hydrogen as fuel, the amount of power finally generated may be more industrially available than the amount of power required to produce hydrogen fuel. That is, since the internal combustion engine power generation system according to the present invention should produce hydrogen fuel by using self-generated power, a formula such as "the amount of self-generated power ≥ the amount of power required for fuel production + the amount of surplus power (use power)" must be established.

Hereinafter, it will be described whether the internal combustion engine power generation system using hydrogen applied to the present invention holds the above formula.

First, in order to calculate fuel consumption (g / PS.Hr) and fuel consumption amount (liter / Hr) from the fuel amount Qe, the fuel consumption time T (sec) must be calculated. Calculation is calculated | required as following formula (1).

[Equation 1]

T (sec) = (120 × U) ÷ (Engine Passage × Engine RPM / 1000 × Qe)

Here, U is described as a case where the engine is 500 cc in terms of the capacity of the fuel tank used in the tester.

The formula for calculating fuel economy (g / PS.Hr) from the fuel consumption time (T (sec)) is shown in Equation 2 below.

&Quot; (2) "

Fuel Consumption (g / PS.Hr) = 0.83 × 3600sec × U ÷ (Engine Power PS × T)

In addition, the formula for calculating the fuel consumption amount (liter / Hr) from the fuel consumption time (T (sec)) is the following equation (3).

&Quot; (3) "

Fuel Consumption (liter / Hr) = (U / T) × (1liter / 1000cc) × (3600sec / 1Hr)

According to the above equations, if the fuel quantity Qe value is 231.5 (output 405 PS / 18,000 RPM) and the engine has six cylinders, the fuel consumption is calculated as follows.

T = 120 × 500 ÷ (6 × 1.8 × 231.5) = 23.998 sec

Fuel Consumption = 0.83 × 3600 × 500 ÷ (405 × 23.998) = 153.716 g / PS.Hr

Fuel consumption per hour = (500 / 23.998) × 0.001 × 3600 = 75 liter / Hr

therefore,

Fuel consumption per minute = 75 liter / Hr / 60 minutes = 1.25 Liter

Fuel consumption per revolution = 1.25 Liter / 1800 RPM = 0.69 ml

As a result of the above calculation, the fuel consumption per minute of the internal combustion engine generator, which outputs 275KW, is 1.25 liters.

Therefore, the amount of hydrogen generated by electrolysis of water should be more than 1.25 liters, and the electricity consumption should also be less than 275KW output of the above generator.

On the other hand, the electricity consumption for the electrolysis of water and the hydrogen generated through it is as follows.

In electrolysis, 1 g equivalent is precipitated with respect to 1 Faraday current, that is, 1 Faraday = 96500 Coulomb = 96500 ASec, and 1 g equivalent of hydrogen is 1.008 g. In addition, the volume of 1 mole of hydrogen is 22.4 liters and the mass is about 2 g.

Thus, 1cc of hydrogen is 2/22400

(96500 Coulomb / 2g) × (2g / 22400) = 4.388 Coulomb

That is, 1 ml of hydrogen is generated when 4.388 seconds of current flows with 1 A of current.

Therefore, since the internal combustion engine described above requires 1.25 liters of fuel per minute,

Current required per second is (1250 ml × 4.388A) / 60 seconds = 91.4A

The amount of hydrogen required per second is 91.4A /4.388 = 20.8ml

If the battery is 12V / 7.61A, it can meet the fuel consumption of internal combustion engine.

Therefore, about 3.3 / 10000KW of the above generator output 275KW can produce the required fuel.

The fuel consumption calculated through the above processes is summarized as follows.

Generator: 275KW

Internal combustion engine: 500CC / 6 cylinders / 1800 RPM

-Fuel consumption per minute = 1.25 Liter

-The amount of hydrogen required per minute> = 1.25 Liter

Power Consumption = 91.4A (Battery 130 (12V / 7,61A))

-Power generation 275KW, 3.3 / 10000KW

Therefore, only water can be supplied through the internal combustion engine power generation system, and hydrogen can be produced by electrolyzing water at about 3.3 / 10000KW of electricity generation amount of 275KW, so that the remaining power can be supplied to the outside through the output terminal. It can be seen that it can be utilized.

As described above, the internal combustion engine power generation system using hydrogen according to the present invention produces hydrogen by electrolyzing water, and operates the internal combustion engine 200 using the produced hydrogen as fuel, and generates power from the internal combustion engine 200. The generator 300 receives electricity to produce electricity.

On the other hand, the generator 300 can be divided into a DC generator and an alternator according to the type, the DC generator is a direct current because the power output from the generator is a DC, without a separate device, such as charging the storage battery 130 of the internal combustion engine power generation system. It can be used internally. If the output power of the generator is AC power, an inverter device for converting AC power into staff power should be additionally provided. In addition, in the case of an alternator, when the externally required power source is an AC power source, the power source of the generator can be directly output and used.

As described above, the internal combustion engine power generation system according to the present invention uses water as a raw material, and directly processes and produces water as hydrogen fuel to supply the internal combustion engine 200 to develop or produce storage containers according to hydrogen storage, production costs, explosion hazards, and the like. Self-generated power can be used as a power source for the internal combustion engine power generation system and can be supplied to external equipment as output power. Therefore, if only the water supply and the maintenance of the system is properly made as a raw material is provided to enable self-generation without the external power supply.

The internal combustion engine power generation system using the water channel according to the present invention is not limited to the above-described embodiment, and the technical idea of the present invention and claims to be described below by those skilled in the art to which the present invention belongs. Of course, various modifications and variations can be made within the scope of equivalents.

100: hydrogen generator 110: water supply device
111: water supply 112: water supply valve
113: water supply motor 114: water level control device
115: water supply pipe 116: filter
120: hydrogen generator 121: hydrogen generator body
122: water supply valve 123: water level control device
124: gas shutoff valve 125: gas piping
126: filter 127: current regulator
130: storage battery 200: internal combustion engine
210: cylinder 211: spark plug
212: intake piping 213: exhaust piping
220: piston 230: crankshaft
250: starting motor 300: generator
310: rotor 320: stator
400: control device

Claims (8)

In a power generation system using hydrogen as a fuel,
A hydrogen generator 100 for producing hydrogen by electrolyzing water;
An internal combustion engine (200) driven by receiving hydrogen as fuel from the hydrogen generator (100) to generate rotational force;
A generator 300 that receives the rotational force from the internal combustion engine 200 and is driven to produce electricity;
It includes; a control device 400 for controlling the operation of the hydrogen generator 100, the internal combustion engine 200 and the generator 300, and controls the external output of electricity produced through the generator 300; Internal combustion engine power generation system, characterized in that. The method of claim 1,
The hydrogen generator 100 is
A storage battery 130 in which power is stored;
Water supply device 110 for supplying water,
Under the control of the control device 400, the hydrogen generator 120 to produce hydrogen by electrolyzing water through the output power of the storage battery 130 or the generator 300, and to supply the produced hydrogen to the internal combustion engine 200 An internal combustion engine power generation system characterized in that it comprises a). 3. The method of claim 2,
The control device 400 operates by supplying the power stored in the storage battery 130 to the hydrogen generator 120 during the initial operation of the hydrogen generator 120,
When the internal combustion engine 200 and the generator 300 are driven through the hydrogen produced by the hydrogen generator 120, the electricity is produced and supplied to the hydrogen generator, and the storage battery 130 is supplied through the produced power. An internal combustion engine power generation system, characterized by charging. 3. The method of claim 2,
The water supply device 110
Water tank 111 is stored water,
A water supply valve 112 for controlling an amount of water introduced into the water supply container 111;
A water level control device 114 for controlling the water supply valve 112 so that the water level of the water supply container 111 is kept constant;
Internal combustion engine power generation system characterized in that the water supply motor 113 for supplying the water stored in the water supply tank 111 to the hydrogen generator 120 through the water supply pipe 115 is provided. 5. The method of claim 4,
The water supply pipe 115 is an internal combustion engine power generation system, characterized in that the filter 116 is installed to purify the water. 3. The method of claim 2,
The hydrogen generator 120 is always
A water supply valve 122 for controlling an amount of water supplied from the water supply device 110;
A water level control device 123 for controlling the water supply valve 122 so that the water level of the hydrogen generator 120 is kept constant;
A current regulator 127 for adjusting a current value required to electrolyze water;
A gas pipe 125 for supplying hydrogen generated by the electrolysis of water to the internal combustion engine 200;
Is installed in the gas pipe 125, the internal combustion engine power generation system, characterized in that provided with a gas shutoff valve (124) for blocking the hydrogen supply of the internal combustion engine (200). The method according to claim 6,
The gas pipe (125) is an internal combustion engine power generation system, characterized in that a filter (126) for removing the water of hydrogen gas is installed. The method of claim 1,
The internal combustion engine 200
It is started by receiving initial driving power from a starting motor 250 driven by receiving power from the storage battery 130 in which power is stored, and after the initial starting, an internal combustion engine, which repeatedly performs a four-stroke cycle with hydrogen as fuel. Power generation system.

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