CN108649294A - The joint simulation method of radiator and liquid cooling battery pack - Google Patents
The joint simulation method of radiator and liquid cooling battery pack Download PDFInfo
- Publication number
- CN108649294A CN108649294A CN201810347523.1A CN201810347523A CN108649294A CN 108649294 A CN108649294 A CN 108649294A CN 201810347523 A CN201810347523 A CN 201810347523A CN 108649294 A CN108649294 A CN 108649294A
- Authority
- CN
- China
- Prior art keywords
- heat
- radiator
- heat exchange
- temperature
- battery pack
- 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
Links
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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
- H01M10/625—Vehicles
-
- 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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Evolutionary Computation (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Computer Hardware Design (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to electric automobile lithium battery fields, the specifically joint simulation method of radiator and liquid cooling battery pack, include the following steps：Preliminary heat sink model is established, the heat exchange area of heat sink model, quality, flow and the temperature of setting air and coolant liquid are obtained；Heat output is found out, heat exchange amount is calculated；Heat exchange amount and heat output are compared；If finding out the difference of above-mentioned heat output and above-mentioned heat exchange amount, absolute value≤2% of the ratio of the difference and heat exchange amount then assumes the outlet temperature of coolant liquid and repeats abovementioned steps calculating again again；If finding out the difference of above-mentioned heat output and above-mentioned heat exchange amount, the absolute value ＞ 2% of the ratio of the difference and heat exchange amount then obtains determining heat sink model.Quick, convenient, effectively the structure and parameter of radiator can be optimized by using this method, improve uniformity and validity that coolant liquid cools down battery pack temperature.
Description
Technical field
The invention belongs to electric automobile lithium battery fields, the specifically joint simulation method of radiator and liquid cooling battery pack.
Background technology
For electric vehicle as new energy, discharge is low, it might even be possible to realize zero-emission, can greatly reduce the dirt to environment
Dye, so the use of battery is more and more extensive.But the Wen Sheng of stack battery and temperature inconsistency can not only be led during use
The decline for causing battery capacity utilization rate and available power, can also reduce the service life of battery pack, be unfavorable for electric vehicle
It uses and promotes.So battery thermal management has irreplaceable significance in battery management system.
Battery pack is the power core of electric vehicle, battery technology development be restrict the significant impact of Development of Electric Vehicles because
Element.Lithium ion battery will produce a large amount of heat due to the presence of Joule heat and reaction heat etc., since arrangement space limits, hold
It easily causes that radiating condition is poor, and causes the accumulation of battery pack heat, lead to temperature rise.Battery thermal management is generally divided into sky
Cold, liquid cooling, phase-change material are cooling and heat pipe cools down, wherein the cooling effect of liquid cooling is most quick.But coolant liquid passes through battery case
After, due to absorbing the heat of battery, temperature necessarily increases, and will be unfavorable for the cold of battery case when entering battery case once again
But.So should radiate as possible to coolant liquid outside the enclosure, the structure and parameter of radiator is optimized, is improved cold
But the uniformity and validity that liquid cools down battery case temperature.
Invention content
The purpose of the present invention is to provide the joint simulation methods of a kind of radiator and liquid cooling battery pack, it is expected to solve mesh
A kind of preceding method preferably optimized to the heat spreader structures and parameter for being docked with liquid cooling battery pack not yet is asked
Topic.
To achieve the goals above, the present invention provides the joint simulation method of a kind of radiator and liquid cooling battery pack, packets
Include following operating procedure：
Preliminary heat sink model is established to computer simulation system input relevant parameter, is inputted to computer simulation system
Relevant parameter obtains the heat exchange area of heat sink model, quality, flow and the temperature of setting air and coolant liquid；
1) radiator coolant inlet temperature is set, it is assumed that heat sink model cooling liquid outlet temperature is less than heat sink model
Cooling liquid inlet temperature finds out heat output using equation of heat balance, then finds out radiator air outlet temperature；
2) by known air themperature and coolant liquid inlet temperature and 1) in the air that is calculated and coolant liquid go out
Mouth temperature calculates logarithmic mean temperature difference (LMTD)；
3) coefficient of heat transfer of air side and coolant liquid side is calculated according to logarithmic mean temperature and heat spreader structures parameter；
4) heat exchange amount is calculated according to the coefficient of heat transfer and heat transfer equation；Above-mentioned heat exchange amount is compared with heat output；
If finding out the difference of above-mentioned heat output and above-mentioned heat exchange amount, absolute value≤2% of the ratio of the difference and heat exchange amount,
The outlet temperature of coolant liquid is then assumed again and is repeated again 1)~3) step calculating；
If finding out the difference of above-mentioned heat output and above-mentioned heat exchange amount, the absolute value ＞ 2% of the ratio of the difference and heat exchange amount,
Then obtain determining heat sink model.
It is found by the applicant that in the difference of above-mentioned heat output and above-mentioned heat exchange amount, the ratio of the difference and heat exchange amount it is absolute
When value ＞ 2%, you can, can be quick, convenient, effective right by using this method to obtain a preferable radiator of performance
The structure and parameter of radiator optimizes, and improves uniformity and validity that coolant liquid cools down battery pack temperature.
Further, liquid cooling battery pack model is obtained to computer simulation system input relevant parameter, by above-mentioned determination
Heat sink model docked with the coolant pipe of liquid cooling battery pack model.
Above-mentioned radiator can take away a part of heat of coolant liquid, make cold as main thermal component on automobile
But liquid temperature declines, and coolant liquid back flows back into liquid cooling battery pack later, into next circulation.
Above-mentioned radiator is docked with liquid cooling battery pack, i.e., by the exit water temperature of liquid cooling battery pack (battery case) interior coolant liquid
As the inlet water temperature of radiator, using the exit water temperature of coolant liquid in radiator as the inlet water temperature of battery case.
Further, the model foundation of above-mentioned radiator is write using UDF formats.
Further, the calculating of above-mentioned joint simulation method is completed in FLUENT softwares.
The present invention also provides a kind of radiator, including core, the hydroecium for being separately positioned on core upper and lower, above-mentioned hydroeciums
On be provided with connecting tube for docking liquid cooling battery pack cooling tube.Wherein core is that coolant liquid and external environment exchange heat
Structure.
Further, above-mentioned core includes the heat exchanger tube that upper and lower directions extends, the above-mentioned transversely arranged arrangement of heat exchanger tube；On
It states to be provided with by the side of heat exchanger tube and passes hot linked heat-radiation belt with the heat exchanger tube.
Further, above-mentioned heat-radiation belt is the plate body of undaform.
Further, above-mentioned heat-radiation belt includes the tablet arranged up and down, connected by bent plate between adjacent panels, it is above-mentioned
Tablet and bent plate form the plate body of above-mentioned undaform.
Further, being mutually parallel between above-mentioned adjacent panels.
The tablet and bent plate of heat-radiation belt above-mentioned in this way form fin, to increase the disturbance of air, to increase heat dissipation.
Further, the core includes at least two rows of set of heat exchange tubes, the set of heat exchange tubes is by least two heat exchanger tubes
It is set up in parallel composition；It is provided with heat-radiation belt between the adjacent set of heat exchange tubes.
The present invention is described further with reference to the accompanying drawings and detailed description.The additional aspect of the present invention and excellent
Point will be set forth in part in the description, and partly will become apparent from the description below.Or practice through the invention
It solves.
Description of the drawings
The attached drawing for constituting the part of the present invention is used for assisting the understanding of the present invention, content provided in attached drawing and its
Related explanation can be used for explaining the present invention in the present invention, but not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the radiator of the present invention and tentative calculation flow diagram in the joint simulation method of liquid cooling battery pack；
Fig. 2 is the structural schematic diagram of the radiator of the present invention；
Fig. 3 is the schematic diagram that the radiator of the present invention is docked with liquid cooling battery pack；
Fig. 4 is the radiator cooling capacity line chart of the present invention；
Number in figure is followed successively by：1- cores, 2- hydroeciums, 3- connecting tubes, 4- liquid cooling battery packs, 5- heat exchanger tubes, 6- heat dissipations
Band.
Specific implementation mode
Clear, complete explanation is carried out to the present invention below in conjunction with the accompanying drawings.Those of ordinary skill in the art are based on these
The present invention will be realized in the case of explanation.Before in conjunction with attached drawing, the present invention will be described, of particular note is that：
Technical solution and technical characteristic in the present invention provided in each section including following the description are not being rushed
In the case of prominent, these technical solutions and technical characteristic can be combined with each other.
In addition, the embodiment of the present invention arrived involved in following the description is generally only the embodiment of a branch of the invention, and
The embodiment being not all of.Therefore, based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under the premise of labour, should all belong to the scope of protection of the invention.
About term in the present invention and unit.Term in description and claims of this specification and related part
" comprising " and its any deformation, it is intended that cover and non-exclusive include.
Picture 1-4, a kind of radiator provided in present embodiment, including core 1, it is separately positioned on 1 upper and lower of core
Hydroecium 2, the connecting tube 3 for docking 4 cooling tube of liquid cooling battery pack is provided on above-mentioned hydroecium 2.Above-mentioned core 1 includes up and down
The heat exchanger tube 5 that direction extends, 5 transversely arranged arrangement of above-mentioned heat exchanger tube；It is provided with by the side of above-mentioned heat exchanger tube 5 and the heat exchanger tube 5
Pass hot linked heat-radiation belt 6.Here heat exchanger tube 5 and heat-radiation belt 6 may be used and be welded.The core 1 includes at least two
Set of heat exchange tubes is arranged, the set of heat exchange tubes is set up in parallel by least two heat exchanger tubes and is formed；It is arranged between the adjacent set of heat exchange tubes
There is heat-radiation belt 6.
Above-mentioned heat-radiation belt 6 is the plate body of undaform, and above-mentioned heat-radiation belt 6 includes the tablet arranged up and down, between adjacent panels
It is connected by bent plate, above-mentioned tablet and bent plate form the plate body of above-mentioned undaform, i.e., by the way that undaform folding is made in heat-radiation belt 6
It folds to increase the contact area with air, is mutually parallel between above-mentioned adjacent panels.The tablet and bent plate of heat-radiation belt above-mentioned in this way
Fin is formed, is provided with fin on 6 face of heat-radiation belt to increase the disturbance of air, to increase heat dissipation.
The joint simulation method of radiator and liquid cooling battery pack, including following operating procedure：
Preliminary heat sink model is established to computer simulation system input relevant parameter, is inputted to computer simulation system
Relevant parameter, obtains the heat exchange area of heat sink model, quality, flow and the temperature of setting air and coolant liquid are built first
Vertical heat sink model：Including the calculating etc. of heat transfer area, shaping size, logarithmic mean temperature difference (LMTD), heat output and exit water temperature.
It is as follows：
1) radiator coolant inlet temperature is set, it is assumed that heat sink model cooling liquid outlet temperature is less than heat sink model
Cooling liquid inlet temperature finds out heat output using equation of heat balance, then finds out radiator air outlet temperature；
2) by known air themperature and coolant liquid inlet temperature and 1) in the air that is calculated and coolant liquid go out
Mouth temperature calculates logarithmic mean temperature difference (LMTD)；
3) coefficient of heat transfer of air side and coolant liquid side is calculated according to logarithmic mean temperature and heat spreader structures parameter；
4) heat exchange amount is calculated according to the coefficient of heat transfer and heat transfer equation；Above-mentioned heat exchange amount is compared with heat output；
If finding out the difference of above-mentioned heat output and above-mentioned heat exchange amount, absolute value≤2% of the ratio of the difference and heat exchange amount,
The outlet temperature of coolant liquid is then assumed again and is repeated again 1)~3) step calculating；
If finding out the difference of above-mentioned heat output and above-mentioned heat exchange amount, the absolute value ＞ 2% of the ratio of the difference and heat exchange amount,
Then obtain determining heat sink model.
Above-mentioned steps calculate radiator outlet water temperature using trial and error procedure, the calculating for the present invention, the heat exchange of radiator
The mass flow and temperature of area, air and coolant liquid are known conditions, but the outlet temperature of two fluids is unknown, so
The logarithmic mean temperature difference (LMTD) of heat transfer can not be just found out, meanwhile, the qualitative temperature of fluid can not be also determined, so can not calculate each
The coefficient of heat transfer of fluid.So in this case, generally being calculated using trial and error procedure, steps are as follows for specific calculating：
Radiator heat transfer area：The heat exchange of radiator carries out in the core, and the water pipe sections of core walk cooling water, dissipates
On the torrid zone air, so the heat transfer area of core can be divided into the heat dissipation area of water side and the heat dissipation area of gas side：
The heat dissipation area F of water sidew
Fw=2 × (L1+W1)×H1×N2 (1)
Wherein, L1For water pipe cross-section lengths, unit mm；
W1For water pipe cross-sectional width, unit mm；
H1It is long for water pipe, unit mm；
N2For water pipe number.
The heat dissipation area F of gas sidea
Wherein, HH is fin height, unit m；
W is the fin pitch of waves, unit m；
L is core thickness, unit m；
N1For gas side port number.
The calculating of shaping size：The calculation of thermodynamics of fluid will use Reynolds number ReWith nusselt number Nu, and the two values
Calculating, usually to use shaping size.For pipe, shaping size had both been its radius, and for non-round, then it takes
Equivalent diameter is generally calculated by following formula as its shaping size, equivalent diameter：
Wherein, A accumulates for fluid passage section, unit m2
U is wetted perimeter, and unit m, meaning is exactly to participate in the perimeter of heat transfer.
So the heat transfer equivalent diameter D of water sidew：
The equivalent diameter of gas side is Da：
The calculation of thermodynamics of radiator follows Heat transfer equation and heat balance equation.Generally by two methods, it is respectively
Efficiency-unit number method and LMTD method.The present invention will use logarithmic mean temperature for the calculating of outlet tank temperature
The method of difference.
The calculating of logarithmic mean temperature difference (LMTD)：For gilled tube radiator, since temperature of the fluid from import to outlet is variation
Process, the differential thermal calculation of cold fluid and hot fluid is complex, is generally calculated using logarithmic mean temperature difference (LMTD) in engineering, and introduces amendment
Coefficient.So the mean temperature difference Δ t of hot and cold streammIt is represented by：
Wherein, Δ tmaxRepresent tw1-ta2Or tw2-ta1In larger value；
ΔtminRepresent tw1-ta2Or tw2-ta1In smaller value；
tw1And tw2Indicate the out temperature of water；
ta1And ta2Indicate the out temperature of air.
φ is the temperature correction coefficient of gilled tube radiator, and it is 0.97 that its value can be obtained by, which reading up the literature,.
The calculating of radiator heat transfer amount：The heat transfer equation of cold and hot fluid can be indicated by following formula in radiator：
Qa=ha·Fa·η0a·(tw-tma) (7)
Qw=hw·Fw·(tmw-tw) (8)
Wherein, QaAnd QwRespectively air to the caloric receptivity of wall surface and coolant liquid to the thermal discharge of wall surface；
haAnd hwThe respectively coefficient of heat transfer between air and wall surface and the coefficient of heat transfer between coolant liquid and wall surface；
tmaAnd tmwThe respectively temperature of air and coolant liquid；
η0aFor the gross efficiency of fin surface.
Assuming that the diabatic process is steady state heat transfer, then it is believed that Q=Qa=Qw, simultaneously because in heat exchanger medium temperature
It is evolution with distance, so the temperature difference of two media can be indicated by mean logarithmic temperature difference, heat output Q is represented by：
For haAnd hwThe determination of numerical value generally uses empirical equation, the wherein coefficient of heat transfer h of air and wall surface in engineeringa
Wherein, GaFor air mass area ratio flow；
J is the surface heat transfer factor, generally the method for experimental fit is used to obtain in engineering:
Wherein, ReLPFor Reynolds number；
LP is shutter pitch.
The surface film thermal conductance h of coolant liquidw
Wherein, DwIt is equivalent diameter；
λwThe thermal coefficient of coolant liquid；
NuwFor nusselt number, due to water velocity in radiator and unhappy, it is considered that be in laminar flow or transition flow shape
State, so NuwIt is calculated using Gnielinski formula：
Wherein, fiFor pipe coefficient of internal friction, can be calculated by Filonenko formula：
fi=(1.82lnRew-1.64)-2 (14)
Wherein, RewFor water side Reynolds number.
The equation of heat balance of radiator is represented by：
Qa=qa·Cρ,a·(ta2-ta1)×1000 (15)
Qa=qw·Cρ,w·(tw1-tw2)×1000 (16)
Wherein, ta1And ta2It is the inlet temperature and outlet temperature of gas side respectively；
tw1And tw2It is the inlet temperature and outlet temperature of water side respectively；
qaAnd qwIt is the mass flow of gas side and water side respectively；
Cρ,aAnd Cρ,wThe specific heat at constant pressure of gas and coolant liquid respectively.
When the absolute value ＞ 2% of the ratio of the difference of above-mentioned heat output and above-mentioned heat exchange amount, the difference and heat exchange amount, i.e.,
It can obtain a preferable radiator of performance.
Liquid cooling battery pack model is obtained to computer simulation system input relevant parameter, by the heat sink model of above-mentioned determination
It is docked with the coolant pipe of liquid cooling battery pack model, with simulated battery group under high load capacity operating mode, the temperature of coolant liquid and battery pack
Spend situation of change.
Suitable core size is selected according to total heat dissipation of battery.Such as Fig. 4, setting environment temperature is 25 DEG C, is provided in Fig. 4
When coolant temperature is 25 DEG C to 80 DEG C, by the cooling situation of radiator, when inlet water temperature is 80 DEG C, by radiator
Temperature becomes 68.02 DEG C afterwards, and temperature drop is 11.98 DEG C, it is believed that the heat sink model is correct, the simulation meter after can be used for
It calculates.
Followed by radiator and liquid cooling battery case dock, i.e., using the exit water temperature of coolant liquid in battery case as radiator
Inlet water temperature, using the exit water temperature of coolant liquid in radiator as the inlet water temperature of battery case, as shown in Figure 2.It calculates
It completes in FLUENT, so the model of radiator is write using UDF formats, is loaded into FLUENT, and carry out each
The docking of interface.
Comparative result：Setting coolant rate is 30g/s, initial temperature 298K.Model pair is calculated with radiator temperature
After connecing, the temperature of battery and coolant liquid gradually rose with the time in battery case.With the mean temperature comparison under two kinds of operating modes, hair
Now plus the battery of heat spreader module is not than adding the battery mean temperature of heat spreader module high 1.3K.If calculated with average temperature rising,
Then plus the average temperature rising of heat spreader module is higher than 23% or so not added.This just illustrates in the radiation processes of battery, coolant liquid
Influence of the temperature to the Wen Sheng of battery or bigger, if in simulation process, simply by battery case coolant liquid into
If mouth temperature is defined as constant temperature and actual deviation is larger.So the Wen Sheng of coolant liquid is taken into account, it can be better
Simulating actual conditions.
In 1800s, it is 0.54K to have the battery temperature mean square deviation of radiator, is 1.03K without heat spreader module,
There is the effect of radiator better than no radiator.Reason is analyzed, the maximum temperature difference checked in battery pack is it is found that there are radiator feelings
Under condition, temperature difference 3.53K；And in no radiator, maximum temperature difference 5.59K, so maximum temperature in the case of having radiator
Difference is smaller, so causing temperature mean square deviation smaller.
In conclusion present embodiments provide for a kind of preferably to the radiator knot for being docked with liquid cooling battery pack 4
The method that structure and parameter optimize.
The related content of the present invention is illustrated above.Those of ordinary skill in the art are in the feelings illustrated based on these
The present invention will be realized under condition.Based on the above of the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under the premise of labour, should all belong to the scope of protection of the invention.
Claims (10)
1. the joint simulation method of radiator and liquid cooling battery pack, it is characterised in that：Including following operating procedure：
Preliminary heat sink model is established to computer simulation system input relevant parameter, is inputted to computer simulation system related
Parameter obtains the heat exchange area of heat sink model, quality, flow and the temperature of setting air and coolant liquid；
1) radiator coolant inlet temperature is set, it is assumed that heat sink model cooling liquid outlet temperature is cooled down less than heat sink model
Liquid inlet temperature finds out heat output using equation of heat balance, then finds out radiator air outlet temperature；
2) by known air themperature and coolant liquid inlet temperature and 1) in the outlet temperature of air and coolant liquid that is calculated
Degree calculates logarithmic mean temperature difference (LMTD)；
3) coefficient of heat transfer of air side and coolant liquid side is calculated according to logarithmic mean temperature and heat spreader structures parameter；
4) heat exchange amount is calculated according to the coefficient of heat transfer and heat transfer equation；The heat exchange amount is compared with heat output；
If finding out the difference of the heat output and the heat exchange amount, absolute value≤2% of the ratio of the difference and heat exchange amount then weighs
1)~3 the new outlet temperature for assuming coolant liquid simultaneously repeats again) step calculating；
If finding out the difference of the heat output and the heat exchange amount, the absolute value ＞ 2% of the ratio of the difference and heat exchange amount, then
To determining heat sink model.
2. the joint simulation method of radiator as described in claim 1 and liquid cooling battery pack, it is characterised in that：To computer mould
Quasi- system input relevant parameter obtains liquid cooling battery pack model, by the heat sink model of the determination and liquid cooling battery pack model
Coolant pipe docks.
3. the joint simulation method of radiator as claimed in claim 1 or 2 and liquid cooling battery pack, it is characterised in that：It is described to dissipate
The model foundation of hot device is write using UDF formats.
4. the joint simulation method of radiator as described in claim 1 and liquid cooling battery pack, it is characterised in that：The joint is imitative
The calculating of true method is completed in FLUENT softwares.
5. radiator, it is characterised in that：Including core (1), it is separately positioned on the hydroecium (2) of core (1) upper and lower, the hydroecium
(2) connecting tube (3) for docking liquid cooling battery pack (4) cooling tube is provided on.
6. radiator as claimed in claim 5, it is characterised in that：The core (1) includes the heat exchanger tube that upper and lower directions extends
(5), the transversely arranged arrangement of the heat exchanger tube (5)；It is provided with to conduct heat with the heat exchanger tube (5) by the side of the heat exchanger tube (5) and connect
Heat-radiation belt (6).
7. radiator as claimed in claim 6, it is characterised in that：The heat-radiation belt (6) is the plate body of undaform.
8. radiator as claimed in claim 7, it is characterised in that：The heat-radiation belt (6) includes the tablet arranged up and down, adjacent
It is connected by bent plate between tablet, the plate body of the tablet and the bent plate composition undaform.
9. radiator as claimed in claim 8, it is characterised in that：It is mutually parallel between the adjacent panels.
10. radiator as claimed in claim 6, it is characterised in that：The core (1) includes at least two rows of set of heat exchange tubes, institute
It states set of heat exchange tubes and is set up in parallel by least two heat exchanger tubes and formed；Heat-radiation belt (6) is provided between the adjacent set of heat exchange tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347523.1A CN108649294A (en) | 2018-04-18 | 2018-04-18 | The joint simulation method of radiator and liquid cooling battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347523.1A CN108649294A (en) | 2018-04-18 | 2018-04-18 | The joint simulation method of radiator and liquid cooling battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108649294A true CN108649294A (en) | 2018-10-12 |
Family
ID=63746494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810347523.1A Pending CN108649294A (en) | 2018-04-18 | 2018-04-18 | The joint simulation method of radiator and liquid cooling battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108649294A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109800476A (en) * | 2018-12-27 | 2019-05-24 | 中国航天空气动力技术研究院 | A kind of cooler construction optimization method suitable for arc tunnel |
| CN109858197A (en) * | 2019-04-08 | 2019-06-07 | 麦格纳斯太尔汽车技术（上海）有限公司 | A kind of automobile batteries heat management emulation mode |
| CN110134983A (en) * | 2019-03-04 | 2019-08-16 | 天津大学 | The modeling method of proton exchanging film fuel battery cooling system |
| CN112131698A (en) * | 2019-06-25 | 2020-12-25 | 北京新能源汽车股份有限公司 | Method and device for obtaining optimized value of pipe-belt type radiator |
| CN112345582A (en) * | 2020-11-05 | 2021-02-09 | 福州大学至诚学院 | Semiconductor refrigerating sheet performance parameter testing method |
| CN115207395A (en) * | 2022-07-21 | 2022-10-18 | 武汉雄韬氢雄燃料电池科技有限公司 | Evaluation method for intercooler of fuel cell system |
| CN115683682A (en) * | 2022-11-02 | 2023-02-03 | 江苏拓米洛环境试验设备有限公司 | Water chiller testing arrangement and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204834796U (en) * | 2015-08-21 | 2015-12-02 | 北京闪信鼎中技术有限公司 | Battery module temperature control simulator |
| CN105552478A (en) * | 2016-01-15 | 2016-05-04 | 温州大学 | Design method of power battery temperature control system and corresponding control system |
| CN105870540A (en) * | 2016-06-07 | 2016-08-17 | 普天新能源车辆技术有限公司 | Battery pack cooling system |
-
2018
- 2018-04-18 CN CN201810347523.1A patent/CN108649294A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204834796U (en) * | 2015-08-21 | 2015-12-02 | 北京闪信鼎中技术有限公司 | Battery module temperature control simulator |
| CN105552478A (en) * | 2016-01-15 | 2016-05-04 | 温州大学 | Design method of power battery temperature control system and corresponding control system |
| CN105870540A (en) * | 2016-06-07 | 2016-08-17 | 普天新能源车辆技术有限公司 | Battery pack cooling system |
Non-Patent Citations (1)
| Title |
|---|
| 任冰禹: ""锂电池单体及电池组散热仿真及优化"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109800476A (en) * | 2018-12-27 | 2019-05-24 | 中国航天空气动力技术研究院 | A kind of cooler construction optimization method suitable for arc tunnel |
| CN110134983A (en) * | 2019-03-04 | 2019-08-16 | 天津大学 | The modeling method of proton exchanging film fuel battery cooling system |
| CN110134983B (en) * | 2019-03-04 | 2023-04-18 | 天津大学 | Modeling method of proton exchange membrane fuel cell cooling system |
| CN109858197A (en) * | 2019-04-08 | 2019-06-07 | 麦格纳斯太尔汽车技术（上海）有限公司 | A kind of automobile batteries heat management emulation mode |
| CN109858197B (en) * | 2019-04-08 | 2023-03-24 | 麦格纳斯太尔汽车技术（上海）有限公司 | Automobile battery thermal management simulation method |
| CN112131698A (en) * | 2019-06-25 | 2020-12-25 | 北京新能源汽车股份有限公司 | Method and device for obtaining optimized value of pipe-belt type radiator |
| CN112131698B (en) * | 2019-06-25 | 2024-03-22 | 北京新能源汽车股份有限公司 | Method and device for obtaining optimized value of pipe-strip radiator |
| CN112345582A (en) * | 2020-11-05 | 2021-02-09 | 福州大学至诚学院 | Semiconductor refrigerating sheet performance parameter testing method |
| CN112345582B (en) * | 2020-11-05 | 2024-05-28 | 福州大学至诚学院 | Method for testing performance parameters of semiconductor refrigeration sheet |
| CN115207395A (en) * | 2022-07-21 | 2022-10-18 | 武汉雄韬氢雄燃料电池科技有限公司 | Evaluation method for intercooler of fuel cell system |
| CN115207395B (en) * | 2022-07-21 | 2023-02-03 | 武汉雄韬氢雄燃料电池科技有限公司 | Evaluation method for intercooler of fuel cell system |
| CN115683682A (en) * | 2022-11-02 | 2023-02-03 | 江苏拓米洛环境试验设备有限公司 | Water chiller testing arrangement and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108649294A (en) | The joint simulation method of radiator and liquid cooling battery pack | |
| Liu et al. | The performance management of a Li-ion battery by using tree-like mini-channel heat sinks: experimental and numerical optimization | |
| Zhang et al. | Optimization design for improving thermal performance of T-type air-cooled lithium-ion battery pack | |
| Sheng et al. | Lightweight liquid cooling based thermal management to a prismatic hard-cased lithium-ion battery | |
| US20220027539A1 (en) | Method and system for manufacturing a heat exchanger for supercritical pressure fluid | |
| Kuang et al. | Research on control strategy for a battery thermal management system for electric vehicles based on secondary loop cooling | |
| Zhang et al. | Cooling performance optimization of air cooling lithium-ion battery thermal management system based on multiple secondary outlets and baffle | |
| CN106159379B (en) | A kind of cooling device and mode selecting method of electrokinetic cell system heat pipe fin | |
| Zhu et al. | Multi-objective optimization of a liquid cooled battery module with collaborative heat dissipation in both axial and radial directions | |
| CN107887669B (en) | A kind of heat dissipation metal power battery pack construction design method and battery pack | |
| Wu et al. | Investigation on the performance enhancement of baffled cold plate based battery thermal management system | |
| Ren et al. | A general three-dimensional simulation approach for micro-channel heat exchanger based on graph theory | |
| CN110134983B (en) | Modeling method of proton exchange membrane fuel cell cooling system | |
| CN111144054B (en) | Modeling method for natural circulation characteristic of villiaumite cooling high-temperature reactor passive waste heat discharge system | |
| CN102709618A (en) | Microchannel cooling temperature equalizing system for ventilation of lithium battery | |
| CN109858197A (en) | A kind of automobile batteries heat management emulation mode | |
| Tang et al. | Thermal performance of a thermal management system with a thin plate and a slender tube for prismatic batteries | |
| CN211829107U (en) | Honeycomb type micro-channel cooling plate for battery thermal management | |
| Huang et al. | Performance investigation and optimization of latent heat storage exchangers with sandwiched tree-channels | |
| Askar et al. | Transient experimental study of a latent heat thermal energy storage in a heat exchanger for effective thermal management | |
| CN114385960A (en) | Energy average temperature-based dividing wall type heat exchanger performance calculation method | |
| CN109974136A (en) | A kind of radiator, air-conditioner outdoor unit and air conditioner | |
| CN206976529U (en) | A kind of battery bag radiator structure | |
| Wu et al. | Topological optimization and thermal performance of cold plates for lithium-ion battery with non-uniform heat sources | |
| Wei et al. | Investigation of Novel Type of Cylindrical Lithium-ion Battery Heat Exchangers Based on Topology Optimization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181012 |
|
| RJ01 | Rejection of invention patent application after publication |