KR20160143408A - Pressure generating device using heat exchange of ultralow temperature liquid nitrogen and thermal media of all sorts and power generating apparatus using thereof - Google Patents
Pressure generating device using heat exchange of ultralow temperature liquid nitrogen and thermal media of all sorts and power generating apparatus using thereof Download PDFInfo
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- KR20160143408A KR20160143408A KR1020150080092A KR20150080092A KR20160143408A KR 20160143408 A KR20160143408 A KR 20160143408A KR 1020150080092 A KR1020150080092 A KR 1020150080092A KR 20150080092 A KR20150080092 A KR 20150080092A KR 20160143408 A KR20160143408 A KR 20160143408A
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- heat
- liquid nitrogen
- pressure vessel
- main pressure
- various
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
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- F24J2/00—
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
The present invention relates not only to all the heat sources such as the cold heat of liquid nitrogen at a cryogenic temperature and the waste heat discharged from each factory, industrial facility, public facilities and various commercial facilities, Energy acquisition to efficiently acquire the energy of proper means such as the state of electric energy or the state of the air pressure and the rotational driving force by heat exchange between the hot water of the hot water and the hot spring area or the underground hot water of the appropriate water temperature Liquid nitrogen which is supposed to expand in a gaseous state at a temperature of -196 ° C under a normal atmospheric pressure (1 atm) is accommodated in a sealed pressure vessel, and heat (heat) Heat) exchange, so that the high pressure in the pressure vessel A force directed to a cryogenic liquid nitrogen and the pressure generating apparatus and power generation apparatus using the same by heat exchange between the various heating medium for obtaining the energy of the actual use of the various means available.
Liquid nitrogen is a byproduct which is generated during the process of obtaining liquid oxygen by cooling the air and is very cheap in price. Unlike LNG and LPG, liquid nitrogen itself does not emit energy while directly burning, Only.
Liquid oxygen is a basic material for industry that is widely used in various industries such as rocket fuel and steelmaking. Liquid nitrogen, which is a byproduct of cooling the air and separating liquid oxygen by boiling point difference, And various experimental researches. Recently, it has been used as refrigerant for superconducting, but its demand is much lower than that of liquid oxygen, and the price is very low, about 200 ~ 500 won per liter.
In addition, liquid nitrogen has a large latent heat of evaporation that takes up 47.65 cal of heat per gram at -196 ° C under atmospheric pressure. Its specific gravity is 0.808, and liquid nitrogen weighing about 1 kg weighs about 1.24 liters do.
As described above, liquid nitrogen, which is very cheap and contains a considerably large amount of cold energy, has a very low rate of vaporization in contact with atmospheric air, and thus it has not been utilized as an alternative energy source which is realistic until now.
In reality, various means such as solar power, wind power generation, and hydrogen energy field, which are somewhat useful, are exposed to limitations and shortcomings of their own. First, the initial cost for making solar power generation facilities is very expensive (10-15%), which requires a very large area of land, while generating efficiency is low.
Not only is wind power generation costly at an early stage, but it is also very inefficient because a very large area of land is required.
Hydrogen energy, in particular, is very dangerous in terms of explosion, but it is a gas itself that is expensive to produce and store and transport. In order to make it liquid, there is enormous pressure and the containers, equipment and devices Hydrogen fuel cells, which are used in part because they are necessary and practically impossible, are also very expensive.
On the other hand, nitrogen in liquid or gaseous state does not burn by itself like LNG or LPG, so there is no danger of sudden ignition and explosion or fire due to it, and sudden explosion (Or liquid), which is completely free of danger, and especially because it is a by-product of the process of making liquid oxygen as mentioned above, it is a great advantage that the price is very low.
In addition, it has a social infrastructure based on the distribution process such as storage and transportation. Also, it is completely excluded to secure a large area as in the case of photovoltaic or wind power generation, and the initial cost for making the device is also very low.
Nitrogen is a clean, clean energy source that contains 78% of the atmospheric air and does not cause any environmental damage even if the liquid nitrogen is vaporized and released into the atmosphere.
In recent years, attempts have been made to generate electric energy by means of a thermoelectric element (Peltier element) such as waste heat or waste water that can be obtained from various factories or industrial facilities, but the thermoelectric element Peltier element) is used as a cooling material that is effectively used in a small food refrigerator or the like to cool the heat generated from components of various electronic products. The Peltier element is applied to a thermoelectric generator utilizing the temperature difference between the heat absorbing part and the heat radiating part The efficiency of the device is very low, less than 10%, and the base material itself consists of a continuous combination of P-type and N-type semiconductors. The price of the device itself is very high and the temperature difference between the heat- C), it is only possible to secure the efficiency of about 15%, which is the commercial limit. It is too limited to secure a temperature difference of several hundred degrees (about 200 ° C ~ 500 ° C) as waste heat or waste water obtained from factories or industrial facilities, and even if it is secured, It is also obvious that it costs a lot of money.
In the above, liquid nitrogen is a by-product of the process of producing liquid oxygen, and is stored and transported by a tanker vehicle or small pressure vessels. As a result, liquid nitrogen in a container which is simply sealed is somewhat vaporized And the pressure of the container will increase a little, but its size is so small that it is impossible to obtain realistic useful power.
As a background of the present invention, Korean Patent Laid-Open Publication No. 1998-018292, a gas turbine, an operation method thereof, and a power generation system have been proposed. Wherein the power generation system comprises a compressor section, a combustor for receiving compressed air from the compressor section, a gas turbine having a turbine section for receiving hot combustion gases from the combustor, and a cooling system, A heat exchanger for cooling the generator and for expanding the liquid nitrogen to a gaseous state by arranging the liquid nitrogen in a heat exchange relationship with the cooling system of the generator by receiving liquid nitrogen from the liquid nitrogen source, , Means for supplying the gas phase (i) to the combustor to reduce NOx formation therein, or (ii) to feed the turbine section to increase the gas turbine power output.
In the background art, nitrogen gas is obtained by passing liquid nitrogen through a cooling coil to control nitrogen oxides (NOx) in a combustor, and it is difficult to efficiently operate the turbine without a combustor. Also, this background art has no way to utilize the various waste heat mentioned above.
In the present invention, liquid nitrogen which is vaporized at -196 ° C under normal atmospheric pressure (1 atm) and tries to expand into a gaseous state is accommodated in a sealed pressure vessel, and heat exchange with the various heat sources A pressure generating device using heat exchange between cryogenic liquid nitrogen and various heat mediums to obtain energy of various means which can be practically used as a high pressure in a pressure vessel generated at that time, And a power generation device.
According to a preferred embodiment of the present invention, there is provided a pressure generating apparatus using heat exchange between cryogenic liquid nitrogen and various heat mediums,
There is provided a main medium pressure vessel for accommodating cryogenic liquid nitrogen and a heating medium supply means for receiving heat energy of a heating medium in a liquid or gaseous state obtained from various external heat sources and for transferring heat energy of the heating medium to cryogenic liquid nitrogen in the main pressure vessel And a high-pressure pressure is generated in the main pressure vessel accommodating the liquid nitrogen by the mutual heat exchange between the ultra-low temperature liquid nitrogen and the heat medium in the heat medium supply means.
A liquid nitrogen supply conduit connected to the liquid supply port for supplying liquid nitrogen to the main pressure vessel;
A liquid nitrogen supply opening / closing valve connected to the liquid nitrogen supply pipe for opening / closing the liquid nitrogen introduction passage;
A high pressure gas discharge pipe connected to the main pressure vessel for discharging high pressure gas generated by vaporization from cryogenic liquid nitrogen;
And a high-pressure gas discharge opening / closing valve connected to the high-pressure gas discharge pipe for opening / closing the high-pressure gas in the main pressure vessel.
Further, an auxiliary pressure vessel for storing the high-pressure gas is further provided between the main pressure vessel and the high-pressure gas discharge pipe.
Further, an intermediate valve is further provided in a line connecting the main pressure vessel and the auxiliary pressure vessel.
Further, each of the heat radiating plates and the heat absorbing plates, which are in the form of a plate, a band plate, a rod, a pin or a ring, are further attached to the inner and outer surfaces of the main pressure vessel.
In addition, a plurality of heat conductors penetrating the inside and outside of the outer wall of the main pressure vessel are provided, and one side portion of the heat conductor inside the main pressure vessel is in direct contact with the cryogenic liquid nitrogen accommodated in the inside of the pressure vessel And the other side of the heat conductor outside the main pressure vessel is in direct contact with the heating medium obtained from the various heat sources outside, thereby increasing the pressure inside the main pressure vessel by heat exchange.
The heat conductor includes a wide plate-shaped thermally conductive plate contacting the surface of the main pressure vessel and a thermally conductive protrusion protruding from the thermally conductive plate to the inside of the main pressure vessel.
Further, a plurality of small endothermic plates in the form of a plate, a strip, or a rod are attached to the outer surface of the thermally conductive plate.
Further, the heat radiating plates are further attached to the surface of the portion protruding from the heat conduction protrusion to the inside of the main pressure vessel by a certain amount, in the form of a plate, a band plate, or a rod.
In addition, one side of the main pressure vessel or a part of the outer walls of both sides are made of a material different from the body of the main pressure vessel and excellent in thermal conductivity, and one side is directly connected to the liquid or gaseous heating medium, And the other side of the main pressure vessel is provided with a heat conduction wall which is in direct contact with the cryogenic liquid nitrogen accommodated inside the main pressure vessel, and the heat conduction wall is hermetically sealed to the body of the main pressure vessel by bolts and nuts.
In addition, a plurality of heat sinks and endothermic plates, which are in the form of a plate, a band plate, and a rod, are attached to the inside and outside of the heat conductive wall.
In addition, the heating medium supply means may include:
And a heating medium accommodating chamber accommodating all or a part of the main pressure vessel and having a heating medium accommodating chamber capable of accommodating a liquid or gaseous heating medium obtained from various external heat sources.
In addition, the heating medium supply means may include:
The main pressure vessel may have a plurality of bends to penetrate or penetrate the main pressure vessel in an integral straight pipe shape continuously and collectively to lengthen the path in the main pressure vessel, A hollow pipe or a pipe is installed in a path passing through the curved path of the pipe to return to a position adjacent to the original inlet and flows through a pipe or a vessel provided with liquid or gaseous heat mediums obtained from various external heat sources And one or more heat conduction tubes for transferring heat to the cryogenic liquid nitrogen in the main pressure vessel to increase the pressure inside the main pressure vessel.
The heat conduction pipe is further provided with heat dissipating plates in the form of a plate, a band plate, or a barrel, the outer circumferential surface being in direct contact with the liquid nitrogen in the main pressure vessel in a section located inside the main pressure vessel .
Further, the heating medium is characterized by being hot water obtained by solar heat.
The heating medium is characterized by being hot spring water or ground water obtained in a natural environment.
Further, the heating medium is obtained from waste heat or wastewater generated in various industrial facilities or commercial facilities.
The heat medium storage container may have a heat medium inlet port on one side and a heat medium discharge port on the other side.
Meanwhile, the power generation apparatus to which the pressure generating apparatus using the heat exchange between the cryogenic liquid nitrogen and various heat mediums according to the present invention is applied,
A pressure generating device for generating a high pressure by using heat exchange between the cryogenic liquid nitrogen and various heat mediums;
A turbine connected to a discharge port side of the main pressure vessel provided in the pressure generator to obtain rotational power from a discharge pressure of high-pressure nitrogen gas;
And a generator driven by the rotary shaft of the turbine to generate electric energy.
According to the pressure generating apparatus using the heat exchange between the cryogenic liquid nitrogen and the various heating mediums of the present invention, a heating medium accommodating vessel for accommodating a heating medium obtained from various external heat sources (heat sources) together with a pressure vessel accommodating liquid nitrogen is separately provided Mutual heat exchange between the heating medium and the liquid nitrogen is rapidly performed, the pressure in the pressure vessel is increased, and the air pressure is safely generated, so that the energy of the proper means such as the rotational driving force or the electric energy can be efficiently obtained.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a pressure generating device using heat exchange between cryogenic liquid nitrogen and various heating mediums according to a first embodiment of the present invention; FIG.
Fig. 2 is a configuration diagram in a state in which a sub-pressure vessel according to a modification of Fig. 1 is added. Fig.
FIG. 3 is a perspective view showing a state in which the main pressure vessel and the heating medium accommodating vessel of FIG. 1 are engaged. FIG.
Figure 4 is a modified perspective view of the main pressure vessel of Figure 3;
5 is a configuration diagram of a pressure generating device using heat exchange between cryogenic liquid nitrogen and various heating mediums according to a second embodiment of the present invention.
Fig. 6 is a modified configuration diagram of Fig. 5; Fig.
FIGS. 7 to 9 are diagrams showing the configuration of a pressure generating device showing various aspects according to a third embodiment of the present invention. FIG.
10A to 11B are diagrams showing the configuration of a pressure generating device showing various aspects according to a fourth embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.
The pressure generating device using heat exchange between the cryogenic liquid nitrogen and various heat mediums according to the present invention may be configured as shown in FIG. 1 according to the first embodiment.
A
As another form of the first embodiment, an
The
The
The heating
It is preferable that the heating
Here, the heating medium has a temperature of room temperature or higher and can be hot water acquired by solar heat. The heating medium may also be hot spring water or ground water obtained in a natural environment. The heating medium may also be obtained from waste heat or waste water generated from various industrial or commercial facilities.
As described above, in the first embodiment, the
The
2, when liquid nitrogen is to be replenished to the
Pressure compressed in the
On the other hand, on the inner and outer surfaces of the
As a form of the second embodiment, as shown in Figs. 5 and 6, a
The
The
The wide plate-shaped thermally conductive plate 13, which is in contact with the outer surface of the portion accommodated in the heat-
7, 8 and 9, the main body of the
A plurality of
As another embodiment of the fourth embodiment, the heating medium supply means may be constituted by one or more
Therefore, the
In order to enhance heat exchange performance, the
Assuming that the liquid nitrogen in the
The power W (watts) = pressure x discharge amount obtained from the above assumption, where W is a value according to the time unit of the discharge amount.
In order to convert the above power, it is necessary to change the pressure unit to N (Newton unit) / m 2, so 667 kg / cm 2 = 667 x 9.8 x 10000 = 65,366,000 N / m 2.
If 1 L of liquid nitrogen is discharged in the gaseous state for 1 hour, the liquid discharge amount per 1 second becomes 0.001 / 3600 = 2.7 × 10 -7 m³ / sec (here, 1 liter = 0.001 m³) The power per second becomes W = 65,366,000 x 2.7 x 10 -7 = 18.156w, and if the power is converted again by the power for one hour, 18.156 x 3600 = 65,364wh = about 65 kwh.
If it is assumed that the liquid nitrogen remaining in the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.
10: Main pressure vessel
11: Heat conduction wall
12: thermoconductor
121: Thermal conduction valve
122: endothermic plate
123: heat conduction protrusion
124: heat sink
14: Channel
16: intermediate valve
20:
20a: heat medium inlet
20b: heat medium outlet
21: Heat conduction tube
30: liquid nitrogen supply pipe
32: liquid nitrogen introduction opening / closing valve
40: High-pressure gas discharge pipe
42: High-pressure gas discharge opening / closing valve
44: Turbine
46: generator
50: auxiliary pressure vessel
101, 111, 123, 211:
102, 112, 122:
Claims (19)
A liquid nitrogen supply pipe (30) connected to inject liquid nitrogen into the main pressure vessel (10);
A liquid nitrogen supply opening / closing valve (32) connected to the liquid nitrogen supply pipe (30) for opening / closing the liquid nitrogen introduction passage;
A high pressure gas discharge pipe (40) connected to the main pressure vessel (10) and discharging high pressure gas generated by vaporization from cryogenic liquid nitrogen;
And a high-pressure gas discharge opening / closing valve (42) connected to the high-pressure gas discharge pipe (40) for opening / closing the high-pressure gas in the main pressure vessel (10) .
And a supplementary pressure vessel (50) for storing the high-pressure gas is further provided between the main pressure vessel (10) and the high-pressure gas discharge pipe (40), and heat exchange between the cryogenic liquid nitrogen and various heat- Pressure generating device used.
Characterized in that an intermediate valve (16) is further provided in a conduit (14) connecting the main pressure vessel (10) and the auxiliary pressure vessel (50) Device.
A heat radiating plate 101 and a heat absorbing plate 102 are further attached to the inner and outer surfaces of the main pressure vessel 10 in the form of a plate, a band plate, a rod, a pin or a ring. A pressure generating device using heat exchange between cryogenic liquid nitrogen and various heat mediums.
A plurality of heat conductors 12 penetrating the inside and outside of the outer wall of the main pressure vessel 10 are provided and one side portion of the heat conductor 12 inside the main pressure vessel 10 is connected to the inside of the pressure vessel 10 And the other part of the heat conductor 12 outside the main pressure vessel 10 is in direct contact with the heating medium obtained from various external heat sources and is heated by heat exchange with the inside of the main pressure vessel 10 Pressure liquid nitrogen and heat exchange between the cryogenic liquid nitrogen and various heat mediums.
The thermoconductor 12 includes a thermally conductive plate 121 having a large plate contact with the surface of the main pressure vessel 10 and a thermally conductive protrusion 123 protruding from the thermally conductive plate 121 to the inside of the main pressure vessel 10 And a heat exchanger for exchanging heat between the cryogenic liquid nitrogen and various heat mediums.
A plurality of small endothermic plates 122 in the form of a plate, a band plate, or a bar size are attached to the outer surface of the thermally conductive plate 121, and the heat exchange between the cryogenic liquid nitrogen and various heat- Pressure generating device used.
Wherein a heat sink (124) in the form of a plate, a band plate, or a rod is attached to the surface of the portion protruding from the heat conduction protrusion (123) to the inside of the main pressure vessel (10) And a pressure generating device using heat exchange between various heat mediums.
The main pressure vessel 10 is made of a material different from the main body of the main pressure vessel 10 and having excellent thermal conductivity on one side or a part of the outer walls of both sides of the main pressure vessel 10, And the other side thereof is in direct contact with the cryogenic liquid nitrogen accommodated inside the main pressure vessel 10. The thermally conductive wall 11 is fixed to the main pressure vessel 10 by bolts and nuts, Wherein the cryogenic liquid nitrogen is hermetically coupled to the body of the vessel (10).
A plurality of heat sinks 111 and endothermic plates 112 in the form of a plate, a band plate, or a rod are attached to the inside and the outside of the heat conductive wall 11, and the cryogenic liquid nitrogen and various heat carriers Pressure generating device using heat exchange between the two.
Wherein the heating medium supply means comprises:
A heating medium accommodating vessel (20) accommodating all or a part of the main pressure vessel (10) and having a heating medium accommodating chamber (201) capable of accommodating a liquid or gaseous heating medium obtained from various external heat sources, And a heat exchanger for exchanging heat between the cryogenic liquid nitrogen and various heat mediums.
Wherein the heating medium supply means comprises:
The main pressure vessel 10 may have a plurality of bends to penetrate or penetrate the main pressure vessel 10 in an integral straight pipe shape to continuously extend the inside of the main pressure vessel 10, A hollow pipe or tube is installed in the pressure vessel 10 through a plurality of curved paths so as to pass back to a position adjacent to the original inlet, and a liquid or gaseous state obtained from various external heat sources And the heat energy of the heat medium is transferred to the cryogenic liquid nitrogen in the main pressure vessel 10 to increase the pressure inside the main pressure vessel 10 21. The pressure generating device according to claim 21, wherein the cryogenic liquid nitrogen is heat exchanged between the cryogenic liquid nitrogen and various heat mediums.
In the heat conduction pipe 21, an outer circumferential surface which is in direct contact with the liquid nitrogen in the main pressure vessel 10 in a section located inside the main pressure vessel 10 is formed into a plate shape, a band plate shape, And a plurality of heat dissipation plates (211) are further attached to the plurality of heat dissipation plates.
Characterized in that the heating medium is hot water obtained by solar heat, and the pressure generating device using heat exchange between the cryogenic liquid nitrogen and various heating mediums.
Characterized in that the heating medium is hot spring water or ground water obtained in a natural environment, and a pressure generating device using heat exchange between cryogenic liquid nitrogen and various heating mediums.
Wherein the heating medium is obtained from waste heat or wasted hot water generated in various industrial facilities or commercial facilities and is discharged from the cryogenic liquid nitrogen and various heat mediums.
Wherein the heating medium accommodating vessel (20) has a heating medium inlet (20a) at one side and a heating medium outlet (20b) at the other side, wherein the cryogenic liquid nitrogen is heat exchanged between various heating mediums.
A turbine (44) connected to a discharge port side of the main pressure vessel (10) provided in the pressure generating device and obtaining rotational power from discharge pressure of high pressure nitrogen gas;
And a generator (46) driven by a rotation axis of the turbine (44) to generate electric energy. The power generation apparatus according to claim 1, wherein the pressure generator is a heat exchanger.
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR19980018292A (en) | 1996-08-02 | 1998-06-05 | 스나이더 버나드 | Gas Turbine, Its Operation Method and Power Generation System |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR19980018292A (en) | 1996-08-02 | 1998-06-05 | 스나이더 버나드 | Gas Turbine, Its Operation Method and Power Generation System |
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