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WO2020213773A1 - Système de production d'énergie de navire utilisant un cycle de rankine organique ayant un rendement de production d'énergie amélioré - Google Patents

Système de production d'énergie de navire utilisant un cycle de rankine organique ayant un rendement de production d'énergie amélioré Download PDF

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Publication number
WO2020213773A1
WO2020213773A1 PCT/KR2019/004764 KR2019004764W WO2020213773A1 WO 2020213773 A1 WO2020213773 A1 WO 2020213773A1 KR 2019004764 W KR2019004764 W KR 2019004764W WO 2020213773 A1 WO2020213773 A1 WO 2020213773A1
Authority
WO
WIPO (PCT)
Prior art keywords
power generation
main engine
ship
unit
working fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2019/004764
Other languages
English (en)
Korean (ko)
Inventor
유영호
정양범
견광필
이제훈
주대원
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BIP INDUSTRIES Co Ltd
Original Assignee
BIP INDUSTRIES Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BIP INDUSTRIES Co Ltd filed Critical BIP INDUSTRIES Co Ltd
Publication of WO2020213773A1 publication Critical patent/WO2020213773A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/02—Driving of auxiliaries from propulsion power plant
    • 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
    • F01K15/00—Adaptations of plants for special use
    • F01K15/02—Adaptations of plants for special use for driving vehicles, e.g. locomotives
    • F01K15/04—Adaptations of plants for special use for driving vehicles, e.g. locomotives the vehicles being waterborne vessels
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • 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
    • 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

Definitions

  • the present invention relates to a power generation system of a ship using an organic Rankine cycle, and relates to a power generation system of a ship using an organic Rankine cycle capable of generating power through the organic Rankine cycle using a heat source generated from the main engine of the ship.
  • a low temperature steam thermal power cyclone that uses a freon or hydrocarbon-based organic medium that evaporates in a lower temperature range than water as a working fluid Since high-pressure steam is obtained, high-efficiency power can be generated by using a low-temperature heat source.
  • cooling water and a heat source of combustion gas discharged from the main engine are discharged to the main engine, and a technology to utilize them in various ways is required.
  • An object of the present invention is to solve the above problems, and to provide a power generation system for a ship using an organic Rankine cycle with improved power generation efficiency capable of efficiently generating power by using waste heat generated from a ship's engine.
  • the present invention is an ORC (Organic Rankine Cycle) power generator for operating a generator by circulation of a working fluid;
  • a main engine cooling unit in which the refrigerant circulated to the main engine of the ship is heat-exchanged with the working fluid of the ORC power generation unit to supply a heat source to the working fluid;
  • a main engine waste heat heat source for selectively heat-exchanging the high-temperature combustion gas exhausted from the main engine of the ship to the ORC power generation unit or the main engine cooling unit;
  • a refrigerant supply unit supplying fresh water for a ship's boiler to the ORC power generation unit to be used as a refrigerant for cooling the working fluid.
  • the ORC power generation unit is composed of a pump, an evaporator, a turbine, and a condenser, and heat exchange is performed with the main engine cooling unit and the main engine waste heat heat source unit in the evaporator.
  • the main engine waste heat heat source unit heat-exchanges with the ORC power generation unit when the main engine of the ship is under a low load, and heat exchange with the main engine cooling unit when the main engine of the ship is under high load.
  • the refrigerant supply unit supplies fresh water to the condenser from a fresh water tank in which fresh water for a boiler of a ship is stored to be used as a refrigerant for a working fluid, and supplies fresh water discharged from the condenser to the boiler.
  • the power generation system can be utilized by supplying a heat source to the organic Rankine cycle by using the heat of the cooling water generated from the main engine of the ship and the exhaust waste heat discharged according to fuel consumption.
  • FIG. 1 is a flowchart of a power generation system for a ship using an organic Rankine cycle with improved power generation efficiency according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of combustion gas in case of a main engine low load of a power generation system of a ship using an organic Rankine cycle having improved power generation efficiency according to an embodiment of the present invention.
  • FIG. 3 is a flow chart of a combustion gas in the case of a high load of the main engine of a power generation system of a ship using an organic Rankine cycle having improved power generation efficiency according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a power generation system for a ship using an organic Rankine cycle with improved power generation efficiency according to an embodiment of the present invention.
  • the inventors of the ship's power generation system using an organic Rankine cycle with improved power generation efficiency is largely, the ORC power generation unit 100, the main engine cooling unit 200, the main engine waste heat source unit 300, and a refrigerant supply unit. It consists of including 400.
  • the ORC (Organic Rankine Cycle) power generation unit 100 is a power generation circuit that generates electricity by operating the generator 110 by circulation of a working fluid.
  • the ORC power generation unit 100 is composed of a pump 120, an evaporator 140, a turbine 160, and a condenser 180, and the main engine cooling unit 200 and the main engine waste heat in the evaporator 140 Heat exchange is performed with the heat source unit 300 to receive a heat source to the working fluid.
  • the working fluid is circulated by the pumping of the pump 120, and the working fluid is heated in the evaporator 140 and delivered to the turbine 160 in a vaporized state to operate the generator 110 by rotation to produce electric energy. You will be able to.
  • the working fluid uses a freon or hydrocarbon-based organic medium to evaporate at a lower temperature than water.
  • the main engine cooling unit 200 is a circuit that cools the main engine ME.
  • a heat source is supplied to the working fluid of the ORC power generating unit 100, and specifically, the evaporator 140 ) To transfer the heat source to the working fluid.
  • the main engine cooling unit 200 is a circuit in which the refrigerant circulated to the main engine of the ship is heat-exchanged with the working fluid toward the evaporator 140 side of the ORC power generating unit 100 to supply a heat source to the working fluid.
  • the refrigerant is fresh water, and is cooled to a predetermined temperature by heat exchange with sea water to cool the main engine ME.
  • the temperature of fresh water is circulated at about 10°C to 36°C, and as the temperature of fresh water is supplied closer to 10°C, the combustion efficiency of the main engine increases. Since the temperature of fresh water varies depending on the temperature of seawater (polar or tropical), an appropriate temperature range can be set in consideration of this.
  • the main engine waste heat heat source unit 300 is a circuit for discharging exhausted combustion gas, and supplies a heat source to the working fluid of the ORC power generation unit 100 as waste heat of the exhausted combustion gas to use the waste heat that is discarded. .
  • the main engine waste heat heat source 300 selectively heat-exchanges high-temperature combustion gas exhausted from the main engine ME of the ship with the ORC power generation unit 100 or the main engine cooling unit 200.
  • a first line 320 for direct heat exchange to the ORC power generation unit 100, a second line 340 for heat exchange with the main engine cooling unit 200, and the first line 320 It may be composed of a valve 360 that opens and closes the flow path with two lines 340.
  • the main engine waste heat source unit 300 directly heats the combustion gas generated from the main engine ME with the evaporator 140 of the ORC power generation unit 100, or the main engine cooling unit 200
  • the refrigerant may be heated by heat exchange through the circuit and the heat exchanger 360 to indirectly heat exchange with the evaporator 140 of the ORC power generating unit 100 to supply a heat source.
  • This reason is to supply a heat source having a temperature within a suitable range to the ORC power generation unit 100 according to the operating state of the main engine (ME) of the ship.
  • the combustion gas heat source of the main engine waste heat heat source unit 300 allows heat exchange with the ORC power generation unit 100 when the main engine ME of the ship is under a low load, and the main engine of the ship is under a high load. In this case, heat exchange with the main engine cooling unit 200 may be performed.
  • FIG. 1 is a flowchart of a power generation system for a ship using an organic Rankine cycle with improved power generation efficiency according to an embodiment of the present invention.
  • the inventors of the ship's power generation system using an organic Rankine cycle with improved power generation efficiency is largely, the ORC power generation unit 100, the main engine cooling unit 200, the main engine waste heat source unit 300, and a refrigerant supply unit. It consists of including 400.
  • the ORC (Organic Rankine Cycle) power generation unit 100 is a power generation circuit that generates electricity by operating the generator 110 by circulation of a working fluid.
  • the ORC power generation unit 100 includes a pump 120, an evaporator 140, a turbine 160, and a condenser 180, and the main engine cooling unit 200 and the main engine waste heat in the evaporator 140 Heat exchange is performed with the heat source unit 300 to receive a heat source to the working fluid.
  • the working fluid is circulated by the pumping of the pump 120, and the working fluid is heated in the evaporator 140 and delivered to the turbine 160 in a vaporized state to operate the generator 110 by rotation to produce electric energy. You will be able to.
  • the working fluid uses a freon or hydrocarbon-based organic medium to evaporate at a lower temperature than water.
  • the main engine cooling unit 200 is a circuit that cools the main engine ME.
  • a heat source is supplied to the working fluid of the ORC power generating unit 100, and specifically, the evaporator 140 ) To transfer the heat source to the working fluid.
  • the main engine cooling unit 200 is a circuit in which the refrigerant circulated to the main engine of the ship is heat-exchanged with the working fluid toward the evaporator 140 side of the ORC power generating unit 100 to supply a heat source to the working fluid.
  • the refrigerant is fresh water, and is cooled to a predetermined temperature by heat exchange with sea water to cool the main engine ME.
  • the temperature of fresh water is circulated at about 10°C to 36°C, and as the temperature of fresh water is supplied closer to 10°C, the combustion efficiency of the main engine increases. Since the temperature of fresh water varies depending on the temperature of seawater (polar or tropical), an appropriate temperature range can be set in consideration of this.
  • the main engine waste heat heat source unit 300 is a circuit for discharging exhausted combustion gas, and supplies a heat source to the working fluid of the ORC power generation unit 100 as waste heat of the exhausted combustion gas to use the waste heat that is discarded. .
  • the main engine waste heat heat source 300 selectively heat-exchanges high-temperature combustion gas exhausted from the main engine ME of the ship with the ORC power generation unit 100 or the main engine cooling unit 200.
  • a first line 320 for direct heat exchange to the ORC power generation unit 100, a second line 340 for heat exchange with the main engine cooling unit 200, and the first line 320 It may be composed of a valve 360 that opens and closes the flow path with two lines 340.
  • the main engine waste heat source unit 300 directly heats the combustion gas generated from the main engine ME with the evaporator 140 of the ORC power generation unit 100, or the main engine cooling unit 200
  • the refrigerant may be heated by heat exchange through the circuit and the heat exchanger 360 to indirectly heat exchange with the evaporator 140 of the ORC power generating unit 100 to supply a heat source.
  • This reason is to supply a heat source having a temperature within a suitable range to the ORC power generation unit 100 according to the operating state of the main engine (ME) of the ship.
  • the combustion gas heat source of the main engine waste heat heat source unit 300 allows heat exchange with the ORC power generation unit 100 when the main engine ME of the ship is under a low load, and the main engine of the ship is under a high load. In this case, heat exchange with the main engine cooling unit 200 may be performed.
  • FIG. 2 is a flow chart of combustion gas in case of a main engine low load of a power generation system of a ship using an organic Rankine cycle having improved power generation efficiency according to an embodiment of the present invention.
  • the combustion gas heat source of the main engine waste heat heat source unit 300 is directly heat-exchanged with the working fluid through the ORC power generation unit 100 and the heat exchanger 380 through the first line 320.
  • the waste heat of the combustion gas can sufficiently provide a heat source required for evaporation of the working fluid by the low load operation of the main engine (ME).
  • FIG. 3 is a flow chart of a combustion gas in the case of a high load of the main engine of a power generation system of a ship using an organic Rankine cycle having improved power generation efficiency according to an embodiment of the present invention.
  • the combustion gas heat source of the main engine waste heat heat source unit 300 heats out a refrigerant through the heat exchanger 220 of the main engine cooling unit 200, and this refrigerant is combined with the working fluid of the ORC power generation unit 100. Heat exchange.
  • valve 360 may be adjusted to adjust the flow rate of the combustion gas to the first line 320 or the second line 340. Since the temperature of the combustion gas is different and the temperature of the refrigerant varies according to the operating state of the main engine (ME) of the ship, it is possible to properly control the flow rate and eventually maintain a constant temperature of the heat source supplied to the working fluid.
  • ME main engine
  • the refrigerant supply unit 400 supplies fresh water for the boiler of the ship to the ORC power generation unit 100 to be used as a refrigerant for cooling the working fluid.
  • the refrigerant supply unit 300 supplies fresh water to the condenser 180 of the ORC power generation unit 100 from a fresh water tank 410 in which fresh water for a boiler of a ship is stored to be used as a refrigerant for the working fluid, and the condenser 180 ), the fresh water discharged from the fresh water tank 410 to the boiler 420 is merged with the pipe to be supplied.
  • the present invention contributes to the improvement of power generation efficiency by improving the cooling effect of the condenser 180 by using fresh water for the boiler of the ship, and by supplying the fresh water discharged from the condenser 180 to the boiler 420, the boiler 180 ) It is possible to increase the temperature of the fresh water supplied to) to improve the operating efficiency of the boiler 180, as well as to prevent the overall energy loss of the system.
  • the power generation system in ship-related fields can be utilized by supplying a heat source to the organic Rankine cycle by using the heat of the cooling water generated from the main engine of the ship and the exhaust waste heat discharged according to fuel consumption.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

La présente invention comprend : une unité de production d'énergie à cycle de rankine organique (ORC) qui commande un générateur d'énergie en fonction de la circulation d'un fluide de travail; une unité de refroidissement de moteur principal pour fournir une source de chaleur au fluide de travail par échange de chaleur entre un fluide de refroidissement circulant vers un moteur principal d'un navire et le fluide de travail dans l'unité de production d'énergie ORC; une unité de source de chaleur perdue de moteur principal qui permet à un gaz de combustion à haute température évacué du moteur principal du navire d'échanger sélectivement de la chaleur avec l'unité de production d'énergie ORC ou l'unité de refroidissement de moteur principal; et une unité d'alimentation en agent de refroidissement qui fournit de l'eau pure pour une chaudière du navire à l'unité de production d'énergie ORC de telle sorte que l'eau pure est utilisée comme agent de refroidissement pour refroidir le fluide de travail.
PCT/KR2019/004764 2019-04-17 2019-04-19 Système de production d'énergie de navire utilisant un cycle de rankine organique ayant un rendement de production d'énergie amélioré Ceased WO2020213773A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0044748 2019-04-17
KR20190044748 2019-04-17

Publications (1)

Publication Number Publication Date
WO2020213773A1 true WO2020213773A1 (fr) 2020-10-22

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PCT/KR2019/004764 Ceased WO2020213773A1 (fr) 2019-04-17 2019-04-19 Système de production d'énergie de navire utilisant un cycle de rankine organique ayant un rendement de production d'énergie amélioré

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023024352A1 (fr) * 2021-08-25 2023-03-02 江苏大学 Système d'alimentation en chaleur et é<en nergie combiné solaire reposant sur un chauffage assisté par chaudière à cycle de rankine organique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012067683A (ja) * 2010-09-24 2012-04-05 Toyota Industries Corp ランキンサイクル装置
KR101290289B1 (ko) * 2012-05-31 2013-07-26 한국해양대학교 산학협력단 선박용 온도차 유기 랭킨 사이클 발전 장치
KR20130107324A (ko) * 2010-11-02 2013-10-01 에너제틱스 젠렉 리미티드 모듈식 가열 시스템
KR101463178B1 (ko) * 2013-09-26 2014-11-21 비아이피 주식회사 온수를 이용한 orc 발전 시스템
KR20160135871A (ko) * 2015-05-18 2016-11-29 (주)규원테크 오알씨 시스템을 이용한 다목적 보일러
US20180313234A1 (en) * 2015-10-21 2018-11-01 Orcan Energy Ag Functional synergies of thermodynamic cycles and heat sources

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012067683A (ja) * 2010-09-24 2012-04-05 Toyota Industries Corp ランキンサイクル装置
KR20130107324A (ko) * 2010-11-02 2013-10-01 에너제틱스 젠렉 리미티드 모듈식 가열 시스템
KR101290289B1 (ko) * 2012-05-31 2013-07-26 한국해양대학교 산학협력단 선박용 온도차 유기 랭킨 사이클 발전 장치
KR101463178B1 (ko) * 2013-09-26 2014-11-21 비아이피 주식회사 온수를 이용한 orc 발전 시스템
KR20160135871A (ko) * 2015-05-18 2016-11-29 (주)규원테크 오알씨 시스템을 이용한 다목적 보일러
US20180313234A1 (en) * 2015-10-21 2018-11-01 Orcan Energy Ag Functional synergies of thermodynamic cycles and heat sources

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023024352A1 (fr) * 2021-08-25 2023-03-02 江苏大学 Système d'alimentation en chaleur et é<en nergie combiné solaire reposant sur un chauffage assisté par chaudière à cycle de rankine organique

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