JP2003097352A - Cogeneration system utilizing lng cryogenics - Google Patents

Cogeneration system utilizing lng cryogenics

Info

Publication number
JP2003097352A
JP2003097352A JP2001295620A JP2001295620A JP2003097352A JP 2003097352 A JP2003097352 A JP 2003097352A JP 2001295620 A JP2001295620 A JP 2001295620A JP 2001295620 A JP2001295620 A JP 2001295620A JP 2003097352 A JP2003097352 A JP 2003097352A
Authority
JP
Japan
Prior art keywords
heat
lng
load
power
cogeneration
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.)
Pending
Application number
JP2001295620A
Other languages
Japanese (ja)
Inventor
Koji Ikuta
Masaru Ito
Hiroshi Kondo
勝 伊藤
耕治 生田
博 近藤
Original Assignee
Chugoku Electric Power Co Inc:The
中国電力株式会社
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 Chugoku Electric Power Co Inc:The, 中国電力株式会社 filed Critical Chugoku Electric Power Co Inc:The
Priority to JP2001295620A priority Critical patent/JP2003097352A/en
Publication of JP2003097352A publication Critical patent/JP2003097352A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

PROBLEM TO BE SOLVED: To establish a cogeneration system utilizing the LGN cryogenics which realizes remotely decentralized power source from an existing LNG plant facility, and dynamically feeds the power and the heat in an interlocking manner to an external load. SOLUTION: The cogeneration system X comprises an LNG storage tank 1 to introduce LNG from an LNG plant facility P, a vaporizer 2 which introduces LNG and generates the cryogenics and boil-off gas (BOG) or gaseous hydrogen, a micro gas turbine 3 which introduces the boil-off gas (BOG) or gaseous hydrogen, and performs the power generation and heat exhaust, an output 6 for thermal load which feed the thermal energy to an external thermal load (A) via a heat exchanger 4 for cold to perform the heat exchange by introducing a refrigerant absorbing the cold in a circulating manner and a heat exchanger 5 for exhaust heat collection to perform the heat exchange by introducing the exhaust heat, and an output 7 for power load which supplies the power to the external power load (A) by the power generation.

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【本発明の属する技術分野】本発明は、LNG冷熱を利
用して外部負荷に対応する電力供給と熱利用をおこなう
コージェネシステムに係り、詳しくは、マイクロガスタ
ービン又は燃料電池発電装置を用い、既存のLNGプラ
ント設備に対して遠隔立地した分散電源となり、かつ、
機動的に電力と熱を供給するようにしたLNG冷熱を利
用するコージェネシステムに関する。なお、コージェネ
システムは、熱併給発電システム(co-generation syste
m)の通称である。また、熱と熱エネルギーは互換的に使
用する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cogeneration system that uses LNG cold heat to supply electric power and use heat in response to an external load. Is a distributed power source located at a remote location from the LNG plant facility of
The present invention relates to a cogeneration system that uses LNG cold heat to flexibly supply electric power and heat. The cogeneration system is a co-generation system.
It is a common name for m). Also, heat and heat energy are used interchangeably.
【0002】[0002]
【従来の技術】従来より、LNGプラント設備を利用す
る空調装置(例えば、特開平9−133430号公
報。)が知られている。
2. Description of the Related Art Conventionally, an air conditioner utilizing LNG plant equipment (for example, Japanese Patent Laid-Open No. 9-133430) is known.
【0003】また、LNGから発生する蒸発ガス(BO
D)を発電燃料とする複合発電プラントが知られてい
る。(例えば、特開平2−86926号公報。)
Further, the evaporative gas (BO
A combined power generation plant using D) as a power generation fuel is known. (For example, JP-A-2-86926.)
【0004】一方、近年の地球温暖化対策に向けた環境
規制等の要請下で、次世代のクリーンエネルギー(電
源)として期待されている燃料電池関連技術の研究開発
が急伸してきている。
On the other hand, research and development of fuel cell-related technology, which is expected as next-generation clean energy (power source), has been rapidly growing under the demand of environmental regulations for countermeasures against global warming in recent years.
【0005】燃料電池の用途は多様であるが、これまで
にも自動車用、家庭用、分散電源用、及び事業用の電源
として燃料電池発電装置(セルスタック)を用い、外部
負荷に対応する電力供給と排熱利用をおこなうコージェ
ネシステムが知られている。
Although fuel cells have various uses, the fuel cell power generator (cell stack) has been used as a power source for automobiles, households, distributed power sources, and businesses, and electric power corresponding to an external load has been used. A cogeneration system that supplies and uses exhaust heat is known.
【0006】このなかに、固体高分子型セルスタックか
らなる燃料電池発電装置(PEFC)、又はこれを用い
たPEFCコージェネシステムの提案があり、さらにL
NG改質装置により生成した水素ガスを発電燃料とする
ものがある。
[0006] Among them, there is a proposal of a fuel cell power generation device (PEFC) composed of a solid polymer type cell stack, or a PEFC cogeneration system using the same.
Some use hydrogen gas generated by an NG reformer as power generation fuel.
【0007】[0007]
【発明が解決しようとする課題】しかしながら、実用段
階における発電効率やLNG改質装置の熱効率に問題が
あり、低コスト化技術についても開発途上である。
However, there is a problem in the power generation efficiency in the practical stage and the thermal efficiency of the LNG reformer, and a cost reduction technique is still under development.
【0008】こうしたなかで、本発明者らは、電力の負
荷平準化に寄与する小型分散型電力貯蔵・供給システム
を構築し、エネルギーの有効利用と発電コストの低減を
図るために、LNG(冷熱)を利用したマイクロガスタ
ービン又は燃料電池発電装置(PEFC)を用い、外部
負荷に対応する電力供給と排熱利用をおこなうコージェ
ネシステムの研究開発に取り組み、その成果物のひとつ
として本発明を完成するに至ったものである。
Under these circumstances, the present inventors constructed a small distributed power storage / supply system that contributes to load leveling of electric power, and in order to effectively use energy and reduce power generation cost, LNG ) Is used to research and develop a co-generation system that uses a micro gas turbine or a fuel cell power generator (PEFC) to supply power and use exhaust heat corresponding to an external load, and complete the present invention as one of the outcomes. It came to.
【0009】本発明はこのような事情に鑑みなされたも
のであって、コンパクトな構成により家庭用や事業用の
空調装置と連系するLNG冷熱を利用するコージェネシ
ステムを提供するものである。
The present invention has been made in view of the above circumstances, and provides a cogeneration system that utilizes LNG cold heat and is connected to a home or business air conditioner with a compact structure.
【0010】[0010]
【課題を解決するための手段】課題を解決するために本
発明は、LNG冷熱を利用して外部負荷に対応する電力
供給と熱利用をおこなうコージェネシステムにおいて、
マイクロガスタービン又は燃料電池発電装置を用い、既
存のLNGプラント設備に対して遠隔立地した分散電源
となり、かつ、機動的に電力と熱を供給するようにした
LNG冷熱を利用するコージェネシステムであって、L
NGプラント設備からLNGを導入するLNG貯槽又は
LNG供給ラインと、前記LNGを導入して、冷熱と蒸
発ガス(BOG)又は水素ガスを生成する気化装置又は
LNG改質装置と、前記蒸発ガス(BOG)又は水素ガ
スを導入して発電と排熱をおこなうマイクロガスタービ
ン又は燃料電池発電装置と、前記冷熱を吸収した冷媒を
循環導入して熱交換をおこなう冷熱用熱交換器、及び前
記排熱を導入して熱交換をおこなう排熱回収用熱交換器
を介して外部の熱負荷に対して熱エネルギーを供給する
熱負荷用アウトプットと、前記発電により外部の電力負
荷に対して電力供給する電力負荷用アウトプットを具備
し、前記熱負荷用アウトプット及び電力負荷用アウトプ
ットを外部負荷に連系するようにしたことを特徴とする
ものである。
In order to solve the problems, the present invention provides a cogeneration system that uses LNG cold heat to supply power and heat corresponding to an external load.
A cogeneration system that uses a micro gas turbine or a fuel cell power generator, is a distributed power source located remotely from an existing LNG plant facility, and uses LNG cold heat to flexibly supply electric power and heat. , L
An LNG storage tank or LNG supply line for introducing LNG from an NG plant facility, and a vaporizer or LNG reformer for introducing cold LNG and vaporized gas (BOG) or hydrogen gas, and the vaporized gas (BOG). ) Or a micro gas turbine or a fuel cell power generator that introduces hydrogen gas to perform power generation and exhaust heat, a heat exchanger for cold heat that circulates and introduces a refrigerant that has absorbed the cold heat, and the exhaust heat. An output for heat load that supplies heat energy to an external heat load through a heat exchanger for exhaust heat recovery that introduces heat and an electric power that supplies power to an external power load by the power generation. A load output is provided, and the heat load output and the power load output are connected to an external load.
【0011】[0011]
【発明の実施の形態】本発明の実施の形態は、上記構成
において、熱負荷及び電力負荷からなる外部負荷が氷蓄
熱空調装置であり、スーパーマーケット、コンビニエン
スストア、病院等の電力、給湯、冷蔵・冷凍、空調需要
等へ適用可能としている。
BEST MODE FOR CARRYING OUT THE INVENTION The embodiment of the present invention is the above-mentioned structure, wherein the external load consisting of a heat load and an electric power load is an ice storage air conditioner, and electric power, hot water supply, refrigeration / cooling of supermarkets, convenience stores, hospitals, etc. It can be applied to refrigeration and air conditioning demand.
【0012】また、燃料電池発電装置には固体高分子型
セルスタックからなるPEFCを採用している。
A PEFC made of a solid polymer type cell stack is used in the fuel cell power generator.
【0013】[0013]
【実施例】本発明の一実施例を添付図面を参照して以下
説明する。なお、発電出力は1〜数十kWでよいが、規
模の拡縮は本発明の要旨に影響するものではない。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. The power generation output may be 1 to several tens of kW, but the scaling of the scale does not affect the gist of the present invention.
【0014】図1にシステム構成概要図を示すとおり、
本発明システムXは、LNG冷熱を利用して外部負荷に
対応する電力供給と熱利用をおこなうコージェネシステ
ムであって、マイクロガスタービン3又は燃料電池発電
装置(PEFC)を用い、既存のLNGプラント設備P
に対して遠隔立地した分散電源となり、かつ、連系する
外部負荷(A)に対して機動的に電力供給と熱利用をお
こなうものである。
As shown in the schematic diagram of the system configuration in FIG.
The system X of the present invention is a cogeneration system that uses LNG cold heat to supply power and utilize heat in response to an external load, and uses an existing LNG plant facility using a micro gas turbine 3 or a fuel cell power generator (PEFC). P
In contrast, it is a distributed power source located at a remote location, and flexibly supplies power and uses heat to an external load (A) that is interconnected.
【0015】具体的なシステム構成としては、LNGプ
ラント設備PからLNGを導入するLNG貯槽1又はL
NG供給ライン〔図示省略〕と、LNGを導入して、冷
熱と蒸発ガス(BOG)又は水素ガスを生成する気化装
置2又はLNG改質装置〔図示省略〕と、蒸発ガス(B
OG)又は水素ガスを導入して発電と排熱をおこなうマ
イクロガスタービン3又はPEFC〔図示省略〕と、L
NG冷熱を吸収した冷媒を循環導入して熱交換をおこな
う冷熱用熱交換器4、及び排熱を導入して熱交換をおこ
なう排熱回収用熱交換器5を介して外部の熱負荷に対し
て熱エネルギーを供給する熱負荷用アウトプット6と、
発電により外部の電力負荷に対して電力供給する電力負
荷用アウトプット7を具備する。なお、システム制御は
遠隔監視によりおこなう。(図中、遠隔サポートシステ
ム。)
As a concrete system configuration, the LNG storage tank 1 or L for introducing LNG from the LNG plant equipment P is used.
NG supply line [not shown], vaporizer 2 or LNG reformer [not shown] that introduces LNG to generate cold heat and evaporative gas (BOG) or hydrogen gas, and evaporative gas (B
OG) or a micro gas turbine 3 or PEFC (not shown) that introduces hydrogen gas to generate electricity and exhaust heat, and L
To the external heat load via the heat exchanger 4 for cold heat that circulates and introduces the refrigerant that has absorbed the NG cold heat to perform heat exchange, and the heat exchanger 5 for exhaust heat recovery that introduces exhaust heat and performs heat exchange. Heat load output 6 for supplying heat energy,
The power load output 7 supplies power to an external power load by power generation. System control is performed by remote monitoring. (In the figure, remote support system.)
【0016】そして、熱負荷用アウトプット6及び電力
負荷用アウトプット7を外部負荷に連系するようにして
いる。この外部負荷は、例えば氷蓄熱空調装置Aであ
り、スーパーマーケット、コンビニエンスストア、病院
等の電力、給湯、冷蔵・冷凍、空調需要等へ適用可能と
している。
The heat load output 6 and the power load output 7 are connected to an external load. This external load is, for example, an ice heat storage air conditioner A, which can be applied to electric power, hot water supply, cold storage / freezing, air conditioning demand, etc. in supermarkets, convenience stores, hospitals and the like.
【0017】[0017]
【発明の効果】本発明は以上の構成よりなるものであ
り、これによれば燃料としてLNGを使用することによ
り、従来大気中に放出していた熱エネルギーを活用する
ので、エネルギーの有効利用と発電コストの低減を図る
ことができる。
EFFECTS OF THE INVENTION The present invention has the above-mentioned constitution. According to this, by using LNG as a fuel, the thermal energy conventionally emitted to the atmosphere is utilized, so that the energy can be effectively utilized. It is possible to reduce the power generation cost.
【0018】家庭用や事業用のコージェネシステムとし
て、コンパクトに構成しているので、機動的に、かつ低
価格でシステム構築可能であり、スーパーマーケット、
コンビニエンスストア、病院等の電力、給湯、冷蔵・冷
凍、空調需要等へ適用可能で利用拡大(普及)が期待で
きる。
Since it is compactly constructed as a cogeneration system for home and business use, the system can be constructed flexibly and at a low price.
It can be applied to electric power, hot water supply, refrigeration / freezing, and air-conditioning demand at convenience stores, hospitals, etc., and can be expected to expand usage (spread).
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の一実施例を示すシステム構成概要図で
ある。
FIG. 1 is a schematic diagram of a system configuration showing an embodiment of the present invention.
【符号の説明】[Explanation of symbols]
1 LNG貯槽(又はLNG供給ライン) 2 気化装置(又はLNG改質装置) 3 マイクロガスタービン(又はPEFC) 4 冷熱用熱交換器 5 排熱回収用熱交換器 6 熱負荷用アウトプット 7 電力負荷用アウトプット A 氷蓄熱空調装置〔外部負荷〕 P LNGプラント設備 X 本発明コージェネシステム 1 LNG storage tank (or LNG supply line) 2 Vaporizer (or LNG reformer) 3 Micro gas turbine (or PEFC) 4 Heat exchanger for cold heat 5 Exhaust heat recovery heat exchanger 6 Heat load output 7 Power load output A Ice heat storage air conditioner [external load] PLNG plant equipment X The present invention cogeneration system
───────────────────────────────────────────────────── フロントページの続き (72)発明者 生田 耕治 広島県広島市中区小町4番33号 中国電力 株式会社内 Fターム(参考) 5H026 AA06    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Ikuta             Chugoku Electric Power 4-33 Komachi, Naka-ku, Hiroshima City, Hiroshima Prefecture             Within the corporation F-term (reference) 5H026 AA06

Claims (3)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 LNG冷熱を利用して外部負荷に対応す
    る電力供給と熱利用をおこなうコージェネシステムにお
    いて、マイクロガスタービン又は燃料電池発電装置を用
    い、既存のLNGプラント設備に対して遠隔立地した分
    散電源となり、かつ、機動的に電力と熱を供給するよう
    にしたLNG冷熱を利用するコージェネシステムであっ
    て、LNGプラント設備からLNGを導入するLNG貯
    槽又はLNG供給ラインと、前記LNGを導入して、冷
    熱と蒸発ガス(BOG)又は水素ガスを生成する気化装
    置又はLNG改質装置と、前記蒸発ガス(BOG)又は
    水素ガスを導入して発電と排熱をおこなうマイクロガス
    タービン又は燃料電池発電装置と、前記冷熱を吸収した
    冷媒を循環導入して熱交換をおこなう冷熱用熱交換器、
    及び前記排熱を導入して熱交換をおこなう排熱回収用熱
    交換器を介して外部の熱負荷に対して熱エネルギーを供
    給する熱負荷用アウトプットと、前記発電により外部の
    電力負荷に対して電力供給する電力負荷用アウトプット
    を具備し、前記熱負荷用アウトプット及び電力負荷用ア
    ウトプットを外部負荷に連系するようにしたことを特徴
    とするLNG冷熱を利用するコージェネシステム。
    1. A cogeneration system that uses LNG cold heat to supply electric power and use heat in response to an external load, using a micro gas turbine or a fuel cell power generator, and distributing the remote location to an existing LNG plant facility. A cogeneration system that uses LNG cold heat as a power source and that flexibly supplies electric power and heat, by introducing the LNG storage tank or LNG supply line that introduces LNG from the LNG plant equipment, and the LNG. A vaporizer or LNG reformer that produces cold heat and evaporative gas (BOG) or hydrogen gas, and a micro gas turbine or fuel cell power generator that introduces the evaporative gas (BOG) or hydrogen gas to generate electricity and exhaust heat And a heat exchanger for cold heat that circulates and introduces the refrigerant that has absorbed the cold heat to perform heat exchange,
    And a heat load output for supplying heat energy to an external heat load via a heat exchanger for recovering heat by introducing the exhaust heat, and an external power load by the power generation. A cogeneration system utilizing LNG cold heat, comprising a power load output for supplying electric power, and connecting the heat load output and the power load output to an external load.
  2. 【請求項2】 熱負荷及び電力負荷からなる外部負荷が
    氷蓄熱空調装置である請求項1記載のLNG冷熱を利用
    するコージェネシステム。
    2. The cogeneration system utilizing LNG cold heat according to claim 1, wherein the external load including the heat load and the electric power load is an ice heat storage air conditioner.
  3. 【請求項3】 燃料電池発電装置が固体高分子型セルス
    タックからなるものである請求項1記載のLNG冷熱を
    利用するコージェネシステム。
    3. The cogeneration system utilizing LNG cold heat according to claim 1, wherein the fuel cell power generation device comprises a solid polymer type cell stack.
JP2001295620A 2001-09-27 2001-09-27 Cogeneration system utilizing lng cryogenics Pending JP2003097352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001295620A JP2003097352A (en) 2001-09-27 2001-09-27 Cogeneration system utilizing lng cryogenics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001295620A JP2003097352A (en) 2001-09-27 2001-09-27 Cogeneration system utilizing lng cryogenics

Publications (1)

Publication Number Publication Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105451A (en) * 2004-10-04 2006-04-20 Chubu Plant Service Co Ltd Gas cogeneration equipment
CN102338700A (en) * 2011-05-19 2012-02-01 北京航空航天大学 Engine exhaust emission cooling system of high-altitude simulation test of piston engine
KR101302012B1 (en) * 2011-10-21 2013-08-30 삼성중공업 주식회사 Hydrogen-Mixed Fuel Supplying Apparatus and Vessel Having the Same

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JPH09138063A (en) * 1995-11-14 1997-05-27 Osaka Gas Co Ltd Air separating method and air separating device utilizing liquefied natural gas cold heat
JP2633847B2 (en) * 1987-02-25 1997-07-23 カルソニック株式会社 Automotive refrigerator
JP2000179984A (en) * 1998-12-10 2000-06-30 Takenaka Komuten Co Ltd Regenerative power/heat combined supply system
JP2001056163A (en) * 1999-08-19 2001-02-27 Meidensha Corp Cogeneration system

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JP2633847B2 (en) * 1987-02-25 1997-07-23 カルソニック株式会社 Automotive refrigerator
JPH09138063A (en) * 1995-11-14 1997-05-27 Osaka Gas Co Ltd Air separating method and air separating device utilizing liquefied natural gas cold heat
JP2000179984A (en) * 1998-12-10 2000-06-30 Takenaka Komuten Co Ltd Regenerative power/heat combined supply system
JP2001056163A (en) * 1999-08-19 2001-02-27 Meidensha Corp Cogeneration system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105451A (en) * 2004-10-04 2006-04-20 Chubu Plant Service Co Ltd Gas cogeneration equipment
CN102338700A (en) * 2011-05-19 2012-02-01 北京航空航天大学 Engine exhaust emission cooling system of high-altitude simulation test of piston engine
KR101302012B1 (en) * 2011-10-21 2013-08-30 삼성중공업 주식회사 Hydrogen-Mixed Fuel Supplying Apparatus and Vessel Having the Same

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