WO2020004702A1 - Système de stockage d'énergie climatisé à l'aide d'un thermosiphon - Google Patents

Système de stockage d'énergie climatisé à l'aide d'un thermosiphon Download PDF

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Publication number
WO2020004702A1
WO2020004702A1 PCT/KR2018/008883 KR2018008883W WO2020004702A1 WO 2020004702 A1 WO2020004702 A1 WO 2020004702A1 KR 2018008883 W KR2018008883 W KR 2018008883W WO 2020004702 A1 WO2020004702 A1 WO 2020004702A1
Authority
WO
WIPO (PCT)
Prior art keywords
thermosiphon
air conditioner
battery
container
energy storage
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/KR2018/008883
Other languages
English (en)
Korean (ko)
Inventor
임지훈
이상열
정민욱
최진혁
김진홍
전용호
김근성
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.)
Korea Electric Power Corp
Original Assignee
Korea Electric Power Corp
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 Korea Electric Power Corp filed Critical Korea Electric Power Corp
Publication of WO2020004702A1 publication Critical patent/WO2020004702A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to an energy storage system using an air storage siphon (Energy Storage System with Air conditioner using thermosiphon). More specifically, the present invention relates to an energy storage system for controlling the temperature of a battery container using the thermosiphon principle.
  • air storage siphon Energy Storage System with Air conditioner using thermosiphon.
  • Energy Storage System is a system that saves renewable energy such as solar power and wind power, which is difficult to produce power at desired time, and makes it available at the required time.
  • energy storage systems are key components for implementing next-generation power grids such as smart grids.
  • the energy storage system consists of a plurality of batteries and stores the power produced by the batteries. Batteries with chemical properties are very limited in battery operation (charge or discharge) due to the limited operating temperature range. That is, since the battery is sensitive to temperature, if the operating temperature is above or below the operating temperature, the battery may be severely damaged, such as deterioration and tissue deformation, and its life may be drastically reduced and the characteristics of the battery may be changed. Therefore, the energy storage system is equipped with an air conditioning system such as a cooling fan to maintain the temperature of the battery within a certain range.
  • an air conditioning system such as a cooling fan to maintain the temperature of the battery within a certain range.
  • the problem to be solved in the present invention is to quickly and efficiently control the heat of the battery container, and to apply the thermosiphon principle in addition to the existing container air conditioner.
  • the temperature of the battery container is controlled by using the principle of thermosiphon, and for this purpose, heat exchange between the circulating air and the battery by the container air conditioner, and the heat of the circulating air is applied to the thermosiphon principle as well as the container air conditioner. Heat exchange with the outside of the container.
  • the energy storage system has a container with a battery and an air conditioner inside, a partition located between the battery and the air conditioner, and an upper space and a lower space at the upper and lower portions of the partition, respectively, and the circulated air introduced through the lower space from the air conditioner is provided.
  • the battery is cooled and flows back into the air conditioner through the upper space, and heat is circulated by a thermosiphon installed in the upper space and the outer top of the container.
  • a thermosiphon indoor unit is installed in an upper space
  • a thermosiphon outdoor unit is installed at an outer upper end of the container.
  • thermosiphon In the case of using the thermosiphon according to the present invention, it is possible to reduce the power consumption and increase the cooling efficiency compared to the case of using the steam compression refrigeration cycle alone.
  • thermosiphon principle is a separate thermosiphon principle.
  • 2 is a battery container to which the present invention is applied.
  • thermosiphon device 4 is a battery container and a thermosiphon device to which the present invention is applied.
  • thermosiphon device 5 is a thermosiphon device and a battery container air conditioner according to the present invention.
  • Figure 6 is a whole view of the battery, air conditioner, thermosiphon device to which the present invention is applied.
  • thermosiphon 7 is a table showing the results of the demonstration according to the application of thermosiphon.
  • FIG. 1 shows the principle of a separate thermosiphon.
  • the split type thermosiphon has a form in which the middle part (evaporator) 10 and the condensation part (condenser) 20 are separated, and the steam passage and the condensate return path are connected to each other, and is also called a loop thermosiphon.
  • thermosiphon The operating principle of the thermosiphon is that first, the gas introduced into the evaporator heats the evaporator wall and thus vaporizes the saturated working fluid in the evaporator conduit.
  • the vaporized vapor is collected in the evaporator collecting tube, and the vapor is transferred to the condensing unit along the connection line with the condensing unit by the vapor pressure difference.
  • the steam transferred to the condensation unit is transferred from the steam collection tube to each condensation tube where the heat is transferred to the wall to condense.
  • the condensed working fluid then collects in the lower liquid collection tube along the inner wall by gravity and returns to the evaporator. In this process, the heat transferred to the condenser wall is dissipated by air.
  • the heat pipe 22 may be used in the condensation unit for effective heat exchange.
  • the evaporator of the separate thermosiphon is placed inside the container of the energy storage system (ESS), ie battery 30 and the condenser is placed on top of the evaporator outside the container.
  • One side of the container is provided with an air conditioner of the steam compression refrigeration cycle principle for cooling the inside of the container.
  • FIG. 2 shows inside the battery container. Batteries are divided into two rows and two pairs, and the duct 32 through which holes 34 are formed is passed through the bottom of the container. However, it is not necessarily limited thereto.
  • the bulkhead is installed to distinguish it from the space where the battery is located, and the air conditioner is located outside the bulkhead. As will be described later, the thermosiphon evaporation part is located in the upper space 52 located above the partition wall.
  • thermosiphon evaporation unit 3 is a circulating air flow inside the battery container.
  • the air cooled from the air conditioner 50 is heat-exchanged from the space at the bottom of the battery 30 through the hostile battery, and is heated again into the air conditioner through the upper space of the partition wall while being heated.
  • the space in which the thermosiphon evaporation unit is located may be positioned in a manner of being inserted into the partition wall in the upper space of the partition wall.
  • the air conditioner exchanges heat with an outdoor unit (not shown) located outside to blow the cooled air into the space where the battery is loaded by the circulation fan through the lower space under the partition wall.
  • thermosiphon refrigerant and the air conditioner refrigerant are respectively distinguished.
  • the circulating air passing through the evaporator of the thermosiphon device is cooled again in the evaporator of the air conditioner and then supplied to the bottom of the battery module by the circulation fan.
  • thermosiphon refrigerant heated by the circulating air is delivered to the thermosiphon condenser located on the outer top of the container.
  • the thermosiphon condenser it is cooled by external air, and a separate watering device may be added if a cooling fan is installed or insufficient for this purpose.
  • the heated thermosiphon coolant is transferred from the top of the thermosiphon evaporator to the top of the thermosiphon condenser, and after cooling, it is transferred from the bottom of the thermosiphon condenser to the bottom of the thermosiphon evaporator and closed.
  • the condenser and compressor as evaporators and external units of the air conditioner.
  • the low temperature air discharged from the vapor compression refrigeration cycle circulates while absorbing heat while cooling the battery module while flowing into the container.
  • the heat absorbed circulating air passes through the evaporator of the thermosiphon and the temperature decreases.
  • the working fluid of the thermosiphon receives heat and evaporates to the condensation unit.
  • Relatively low temperature outside air transfers heat through the condenser and the temperature rises.
  • the working fluid condenses and descends by gravity to the evaporator.
  • the thermosiphon discharges heat inside the energy storage system container to the outside by the phase change of the working fluid in the enclosed space.
  • FIG. 5 illustrates in more detail the applied thermosiphon device and battery container air conditioner of the present invention.
  • the thermosiphon device is divided into an outdoor unit and an indoor unit, and the indoor siphon evaporator is located in the upper space of the partition wall. Air temperature measured at three points T1, T2, and T3, and To is the outdoor temperature.
  • thermosiphon applied cooling system was installed in the battery container of the ESS demonstration complex (Jeju Chocheon S / S) and the performance comparison test of the thermosiphon-free battery container (container 1) and the thermosiphon applied battery container (container 7) was conducted was performed.
  • the battery container was subjected to a performance test while exposed to the outside air, and during the performance test, the battery was repeatedly charged (2 hours) and discharged (2 hours) by PCS control (0.25 C-rate). To is maintained between 21 ° C. and 25 ° C. using an air conditioner thermosiphon chiller and the air conditioner is set to operate at a set temperature (To) of 25 ° C. and stop at 21 ° C.
  • the thermosiphon cooler is set to operate when all three conditions are met. The three conditions are as follows.
  • Spray water for evaporative cooling of the thermosiphon outdoor unit was operated from 9 am to 18:00 and the operation was linked with the thermosiphon cooling system.
  • the temperature inside and outside the container and power consumption were measured with a sampling cycle of 4 seconds.
  • the T-type thermocouple was used for the internal temperature measurement of the container, the RTD temperature sensor was used for the external temperature measurement, and the power meter was used for the power measurement.
  • thermosiphon applied container cooling device is reduced by 11.8 ⁇ 18.7% compared to the unapplied container cooling device.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Selon la présente invention, la température d'un contenant de batterie est régulée à l'aide du principe du thermosiphon. À cet effet, un échange de chaleur entre l'air de circulation et une batterie est effectué par un climatiseur de contenant et la chaleur de l'air de circulation est échangée avec l'environnement à l'extérieur du contenant par le principe du thermosiphon ainsi que par le climatiseur de contenant. À cet effet, le système de stockage d'énergie comprend : un contenant comportant une batterie et un climatiseur en son sein ; une paroi de séparation disposée entre la batterie et le climatiseur ; et un espace supérieur et un espace inférieur disposés au-dessus et au-dessous de la paroi de séparation, respectivement, moyennant quoi l'air de circulation introduit à partir du climatiseur à travers l'espace inférieur refroidit la batterie et est à nouveau introduit dans le climatiseur à travers l'espace supérieur et la chaleur est mise en circulation par des thermosiphons installés dans l'espace supérieur et sur la partie supérieure externe du contenant, respectivement. Un dispositif utilisant le principe du thermosiphon comprend une unité intérieure de thermosiphon installée dans l'espace supérieur et une unité extérieure de thermosiphon installée sur la partie supérieure extérieure du contenant.
PCT/KR2018/008883 2018-06-27 2018-08-06 Système de stockage d'énergie climatisé à l'aide d'un thermosiphon Ceased WO2020004702A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0074283 2018-06-27
KR1020180074283A KR102140944B1 (ko) 2018-06-27 2018-06-27 열사이펀을 이용해 공조하는 에너지저장시스템

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WO2020004702A1 true WO2020004702A1 (fr) 2020-01-02

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WO (1) WO2020004702A1 (fr)

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KR102402125B1 (ko) * 2020-06-23 2022-05-27 한국전력공사 에너지 저장 시스템 온도 조절 장치
KR102539930B1 (ko) * 2022-11-29 2023-06-05 라인테크놀러지 주식회사 제어룸과 에너지저장룸이 구분된 ess의 냉각 시스템
CN118156684A (zh) * 2024-03-08 2024-06-07 北京海博思创科技股份有限公司 储能箱

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KR20120076756A (ko) * 2010-12-30 2012-07-10 주식회사 포스코아이씨티 배터리 시스템
KR20150042103A (ko) * 2013-10-10 2015-04-20 현대자동차주식회사 차량의 고전압배터리 공조시스템 및 공조방법
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DE102012108110B4 (de) * 2012-08-31 2014-06-26 Rittal Gmbh & Co. Kg Kühlanordnung für in einem Innenraum eines Schaltschranks angeordnete Komponenten
KR101292847B1 (ko) 2013-04-26 2013-08-02 (주)써모텍 히트파이프를 이용한 데이터 센터의 공조 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003302178A (ja) * 2002-04-08 2003-10-24 Sharp Corp ループ型サーモサイホンおよびスターリング冷蔵庫
KR20120076756A (ko) * 2010-12-30 2012-07-10 주식회사 포스코아이씨티 배터리 시스템
KR20150042103A (ko) * 2013-10-10 2015-04-20 현대자동차주식회사 차량의 고전압배터리 공조시스템 및 공조방법
KR20160047345A (ko) * 2014-10-22 2016-05-02 주식회사 엘지화학 배터리 시스템의 냉각 공기 흐름 제어 시스템 및 방법
KR20160049761A (ko) * 2014-10-28 2016-05-10 주식회사 엘지화학 배터리 컨테이너의 냉난방 시스템 및 방법

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KR102140944B1 (ko) 2020-08-05

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