KR102075550B1 - 순산소 연소 발전 시스템 - Google Patents
순산소 연소 발전 시스템 Download PDFInfo
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- KR102075550B1 KR102075550B1 KR1020180112006A KR20180112006A KR102075550B1 KR 102075550 B1 KR102075550 B1 KR 102075550B1 KR 1020180112006 A KR1020180112006 A KR 1020180112006A KR 20180112006 A KR20180112006 A KR 20180112006A KR 102075550 B1 KR102075550 B1 KR 102075550B1
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- 238000010248 power generation Methods 0.000 title claims abstract description 72
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 66
- 239000000446 fuel Substances 0.000 title claims abstract description 36
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 198
- 238000001816 cooling Methods 0.000 claims abstract description 119
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 99
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 99
- 238000007906 compression Methods 0.000 claims abstract description 93
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 50
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000001301 oxygen Substances 0.000 claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 34
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 description 23
- 230000008859 change Effects 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
-
- 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
- F01K25/103—Carbon dioxide
-
- 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
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/003—Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
도 2는 본 발명에 따른 근사 등온 압축 과정과 기존 압축 과정의 온도-엔트로피 변화를 시뮬레이션한 결과를 나타내는 도면;
도 3은 근사 등온 압축 과정을 적용한 순산소 연소 발전 싸이클과 기존의 압축 과정을 적용한 순산소 연소 발전 싸이클의 압력-온도 변화를 시뮬레이션한 결과를 나타내는 도면;
도 4는 본 발명의 일 실시 예에 따른 냉각 원심형 압축기의 구성을 도시하는 도면;
도 5는 본 발명의 일 실시 예에 따른 냉각 측류형 압축기의 구성을 도시하는 도면;
도 6은 냉각 압축기에서 저온의 산소 및 질소를 적용한 냉각 위치를 예시하는 도면;
도 7은 냉각 압축기의 냉각 위치에 따른 온도-엔트로피 변화와 압력-압축 일 변화를 시뮬레이션한 결과를 나타내는 도면;
도 8은 냉각 압축기의 냉각 위치에 따른 압축 일과 순 효율을 시뮬레이션한 결과를 나타내는 도면;
도 9는 본 발명의 일 실시 예에 따른 순산소 연소 발전 시스템의 동작 프로세스를 설명하는 순서도.
120: 연소기 130: 터빈
140: 발전기 150: 복열기
160: 예냉기 170: 물 분리기
180: 냉각 압축기
Claims (10)
- 초임계 이산화탄소(S-CO2)를 작동 유체로 하는 순산소 연소 발전 시스템에 있어서,
외부로부터 유입되는 공기를 압축하여 산소(O2)와 질소(N2)를 분리하는 공기 분리기;
상기 공기 분리기에서 공급된 산소와 연료 간의 연소 반응을 통해 생성된 열 에너지를 상기 작동 유체인 초임계 이산화탄소로 전달하는 연소기; 및
상기 초임계 이산화탄소를 압축시킴과 동시에, 상기 공기 분리기에서 발생하는 저온의 산소와 질소 중 적어도 하나를 이용하여 압축 과정의 초임계 이산화탄소를 냉각시키는 냉각 압축기를 포함하고,
상기 냉각 압축기는, 상기 초임계 이산화탄소를 압축시키는 압축기와 상기 압축 과정의 초임계 이산화탄소를 냉각시키는 열 교환 장치를 포함하는 것을 특징으로 하는 순산소 연소 발전 시스템. - 삭제
- 제1항에 있어서,
상기 냉각 압축기는, 냉각 원심형 압축기 또는 냉각 측류형 압축기임을 특징으로 하는 순산소 연소 발전 시스템. - 제3항에 있어서,
상기 냉각 원심형 압축기는, 임펠러(impeller)의 전단부를 냉각시키는 포워드 쿨링(forward cooling) 방식이 적용된 압축기임을 특징으로 하는 순산소 연소 발전 시스템. - 제1항에 있어서,
상기 연소기에서 배출되는 고온/고압의 가스 매질이 팽창하면서 회전 날개에 충동 또는 반동력을 주어 기계적 에너지로 변환하는 터빈을 더 포함하는 순산소 연소 발전 시스템. - 제5항에 있어서,
상기 터빈에서 배출되는 가스 매질과 상기 냉각 압축기에서 배출되는 이산화탄소 간의 열 교환을 수행하는 복열기를 더 포함하는 순산소 연소 발전 시스템. - 제6항에 있어서,
상기 복열기를 통과한 가스 매질을 냉각시키는 예냉기를 더 포함하는 순산소 연소 발전 시스템. - 제5항에 있어서,
상기 터빈과 축으로 연결되어 회전 구동하며, 상기 터빈으로부터 전달 받은 운동 에너지를 전기 에너지로 변환하는 발전기를 더 포함하는 순산소 연소 발전 시스템. - 제1항에 있어서,
상기 연소기에서의 연소 반응을 통해 생성된 물(H2O)을 제거하는 물 분리기를 더 포함하는 순산소 연소 발전 시스템. - 제9항에 있어서,
상기 물 분리기는, 상기 냉각 압축기와 연결된 유로를 통해 상기 초임계 이산화탄소를 상기 냉각 압축기로 제공하는 것을 특징으로 하는 순산소 연소 발전 시스템.
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CN114000930A (zh) * | 2021-12-09 | 2022-02-01 | 中国华能集团清洁能源技术研究院有限公司 | 一种分流再压缩式超临界co2循环发电系统及方法 |
US11480074B1 (en) | 2021-04-02 | 2022-10-25 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11486370B2 (en) | 2021-04-02 | 2022-11-01 | Ice Thermal Harvesting, Llc | Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations |
US11486330B2 (en) | 2021-04-02 | 2022-11-01 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
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