CN107509359B - The method of adaptively changing phase-change material heat transfer interface - Google Patents
The method of adaptively changing phase-change material heat transfer interface Download PDFInfo
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Abstract
The method of adaptively changing phase-change material heat transfer interface disclosed by the invention, it is desirable to provide a kind of method that transformation rate is high, heat transfer resistance is small.The technical scheme is that: paraffinic base composite phase-change material is wrapped up with flexible heat conducting nano composite material, forms scale in some tens of pm to the phase change grains in hundreds of microns section；Above-mentioned phase change grains are made to the paraffinic base flexible, porous phase-change material of porous media using foam process；Paraffinic base flexible, porous phase-change material is packaged, phase-change energy storage device is formed；Difference gauge is powered on, open positive displacement pump, heat from heat source enters phase-change energy storage device by fluid working substance, fluid working substance is introduced directly into inside paraffinic base flexible, porous phase-change material, fluid working substance flows between phase change grains gap, heat is carried near phase change grains, the heat for being originated from heat source is rapidly absorbed；The adaptive change with the generation of heat transfer of the heat transfer interface of phase-change energy storage device, and accelerate the phase transition process of phase change grains.
Description
Technical field
The present invention relates to electronic equipment thermal control fields, suitable for solving the problems, such as the high heat consumption equipment cooling of short time work
Adaptively changing phase-change material heat transfer interface method.
Background technique
Phase-change energy storage device is that thermal energy is converted to a kind of device stored after chemical energy.It passes through heat exchange for thermal energy
It is stored in phase-change material, the phase-change material encapsulated in energy-storage units at this time is undergone phase transition, and absorbs it in phase transformation largely
Latent heat simultaneously keeps temperature invariable and stores the amount of heat of absorption in energy-accumulating element, realizes heat-accumulating process.To
When needing, use is released using phase-change material, then thermal energy, solid heat storage body and external environment is made to reach thermal balance.Phase
The micropackaging for becoming material has many advantages, such as increases heat transfer area, reduces phase-change material with the reaction and reduction of external environment
Bring volume change when phase transformation.Although phase-change material itself has, storage density is big, and the advantages that thermal energy storage process approximately constant temperature,
But the pyroconductivity of this kind of material is very low, limits its application to a certain extent.Theoretically, any material can act as
Phase-changing energy storage material, but actually phase-changing energy storage material will generally meet following some conditions: 1. phase transition temperature and target is used
Match;2. latent heat of phase change is big;3. cheap and easy to get;4. chemical stability is good;5. the compatibility with storage container is good;6. thermostabilization
Property is good;7. having good heat transfer and mobile performance;8. having lower vapour pressure.In addition, energy storage material should also have it is nontoxic,
When tasteless, phase transformation volume change it is small, it is small without supercooling or degree of supercooling, without the properties such as phase Segregation, nonflammable.
Currently, the electronic equipment of certain short-term operations is provided with higher and higher calorific value, it is sustainable within several minutes
Ground generates thousands of watts of heat consumptions, and Primary Component temperature rises rapidly in a short time, causes equipment job insecurity even to exist and burns
The risk ruined.In order to solve this problem, currently used scheme is that phase-change energy storage device is installed in equipment.Specific method
Be: the heat of device is conducted to phase-change energy storage device, and the phase-change material encapsulated in a device is made to undergo phase transition, be completed at the same time suction
Heat can thus make the temperature of hot equipment heat sink (i.e. phase change device) be no more than the transformation temperature of material.But due to phase transformation
The thermal coefficient of material is usually very low, when the phase-change material temperature of neighbouring heat-transfer area reaches transformation temperature, the phase transformation far from heat-transfer area
Material temperature and transformation temperature cause it that can not undergo phase transition there are also the larger temperature difference, are also just unable to complete the process of heat absorption.Currently,
The transformation ratio of usual phase change device is lower, and phase-change material is not fully utilized, needs to introduce new method to improve phase-change material
Utilization rate, can just control the temperature of heat-producing device as much as possible under limited engineering specifications in this way.
In numerous energy storage technologies, the storage of energy is realized using phase-changing energy storage material (PCMS) and release is considered as
One of optimal energy storage technology.In various thermal energy storage methods, the method energy storage density using phase-change material PCM energy storage is big,
It and is approximately constant temperature process in energy storage and exoergic process, so having been a hot spot of research.The prior art is made using fin
Stone for packing material, when heat transfer direction and the perpendicular i.e. fin of fin and paraffin constitute arranged in series, between fin
Wax layer constitutes main thermal resistance, and effective thermal conductivity is extremely restricted, basic and paraffin especially when voidage is larger
Thermal coefficient is suitable；When heat transfer direction i.e. fin consistent with fin direction and paraffin are constituted when being arranged in parallel, due to fin
Effect, effective ability is greatly improved, and effective thermal conductivity is mainly determined by fin proportion；It is stored up in phase transformation
In thermal, filling fin can effectively improve the capacity of heat transmission along fin direction, but fill heat horizontal proliferation energy using fin
Power is very poor, and phase-change material fusing and setting rate cannot be effectively improved during phase-change material absorbs and releases heat,
Service efficiency is lower, is unfavorable for the raising of phase change material device entirety hot property.It is with foam copper, foamed aluminium filling paraffin respectively
Example with copper, aluminum fin-stock in parallel and serial two ways filling paraffin when effective thermal conductivity carried out calculate compare, from meter
Result is calculated this it appears that using foam metal as packing material, overall effect is better than fin, can significantly improve phase
Become the heat transfer property and energy storage efficiency of energy storage device.When foam metal is as packing material, foamed metal structures are reduced to two dimension
Cyclic extensions hexagonal mesh form, and heat transfer unit is divided into nine heat-conducting layers.The capacity of heat transmission with the increase of voidage and
Reduce, effective thermal conductivity is connected between two kinds of situations in parallel in fin, it can be seen that it is imitated after being added to foam metal
Situation of the fruit close to fin parallel connection；In phase change material device, although filling fin can effectively improve leading along fin direction
Thermal energy power, but, phase-change material absorb and release heat during phase very poor using fin filling heat lateral diffusion-capability
Becoming material fusing and setting rate cannot be effectively improved, and service efficiency is lower, is unfavorable for phase change material device entirety hot property
Raising.When using foam metal, due to the circulation hexahedron structure of foam metal, its effective ability is equal in any direction
It is identical, and thermal coefficient is itself also greatly increased relative to phase-change material.When foamed aluminium is combined with paraffin, by
Existing thermal contact resistance when not accounting for conducting heat between phase-change material and foam metal fiber, foam metal surface will form one
Layer oxide layer, this also results in capacity of heat transmission decline.Traditional phase-change material thermal coefficient is lower, therefore in use,
In material internal, there are biggish temperature gradients, and when heat transfer interface reaches phase transition temperature, material is apart from heat transfer interface compared with distal part
The temperature divided may be far below transformation temperature, can not undergo phase transition.Since the randomness of foam process is stronger, each phase change grains it
Between gap and disunity, cause the flow resistance of each runner different, therefore heating of the liquid working substance to the phase change grains of different parts
Power is different, the heat transfer interface of conventional phase change material be it is fixed, material can not be adjusted by way of changing interface
Internal Temperature Distribution.To sum up, there are biggish wastes for conventional phase change material.In all phase-changing energy storage materials, paraffinic base is multiple
Closing phase-change material is one of common phase-change material.The olefin material can as needed be adjusted formula, different transformation temperatures
The material equipment that can match different demands.It is swollen that obvious volume can occur after the heat absorption of part paraffinic base composite phase-change material
It is swollen.High molecular polymer is added in high heat conducting nano filler, the thermal coefficient of polymer can be effectively improved, so that flexibility be made
Heat conducting nano composite material.Heat conducting nano composite material can be divided into the particle-filled type of zero dimension, one according to the dimension difference of filler
Dimension fiber filled-type, two-dimensional slice filled-type and mixed fillers filled-type, the thermal coefficient of first three are usually no more than 1W/m.K,
And mixed fillers filled-type can greatly promote thermal coefficient.Current more typical mixed fillers filled-type high molecular polymer
Have the following two kinds: first is that EP(epoxy resin) in the MWCNTs(multi-walled carbon nanotube of nano-aluminum nitride doping is added) and micron AlN
Laminar composite material is made in mixed fillers, and thermal coefficient is up to 64.5W/m.K, second is that by one-dimensional mixed fillers MWCNTs and micro-
The bakelite C F of meter level carbon fiber CFs filling, thermal coefficient is up to 393W/m.K.Due to foam process randomness compared with
By force, the gap between each phase change grains and disunity cause the flow resistance of each runner different, therefore liquid working substance is to different parts
The heating power of phase change grains is different.Many times, phase-change energy storage device is suitable for the transient working in finite time
Operating condition, so the transformation rate for accelerating phase change device is necessary.Traditional phase change device due to only one heat transfer interface,
And interface is immutable, therefore the transformation rate of material is slower.Due to each in use, volume change can all occur for phase-change material
Change, if Reusability tradition phase change device, there may be gap between phase-change material and encapsulating housing, leads to boundary of conducting heat
The thermal contact resistance in face rises, and result is exactly further to weaken the energy storage effect of entire phase change device.
The rate of heat transfer of high energy-storage units melting process is to reduce phase-change accumulation energy system to fill, release the energy time, improves system effect
The important measures of rate, thus the extensive concern by domestic and foreign scholars.The prior art suitable phase transition temperature and phase in order to obtain
Become the performances such as latent heat and two or more phase change material is usually matched to the multi-component combined phase-change object of synthesis according to a certain percentage
Matter adjusts phase transition temperature and latent heat of phase change using the interaction between phase change material molecule.Phase-change material is in process of setting
There is the transformation interface of change with time, phase-change material its density, specific heat and thermal coefficient in temperature change are possible to send out
Changing.Movement in phase transition process there is phase interface causes the transmitting of the quality, momentum and energy of phase-change material.Very much
When, phase-change energy storage device is suitable for the transient working operating condition in finite time, so accelerating the transformation rate of phase change device is
It is necessary to.
Summary of the invention
The purpose of the present invention is provide one kind for the problem that traditional phase-change energy storage device thermal conductivity is low, phase control with changed scale is low
The method for the adaptively changing phase-change material heat transfer interface that transformation rate is high, heat transfer resistance is small.
Above-mentioned purpose of the invention can be reached by the following measures.A kind of adaptively changing phase-change material heat transfer interface
Method, it is characterised in that include the following steps: to be wrapped up paraffinic base composite phase-change material with flexible heat conducting nano composite material,
Scale is formed in some tens of pm to the phase change grains in hundreds of microns section；Above-mentioned phase change grains are made using foam process porous
The paraffinic base flexible, porous phase-change material of medium；Paraffinic base flexible, porous phase-change material is packaged, phase-change accumulation energy dress is formed
It sets；The positive displacement pump 3 being connected with phase-change energy storage device makes liquid circulation by heat source 4, by test phase-change energy storage device inlet and outlet
2 both ends of difference gauge of pressure difference, are connected to the stream socket of phase-change energy storage device 1, and in difference gauge 2 and positive displacement pump 3
Between connection controller 5 formed cooling system；To difference gauge be powered on, open positive displacement pump 3,4 heat of heat source by fluid working substance into
Enter phase-change energy storage device, fluid working substance is introduced directly into inside paraffinic base flexible, porous phase-change material, and fluid working substance is in phase change grains
It is flowed between gap, heat is carried near most of phase change grains, rapidly absorb the heat for being originated from heat source 4；Phase transformation storage
Heat transfer interface adaptive change with the generation of heat transfer of energy device, accelerates the heat absorption phase transition process of phase change grains.
The present invention has the advantages that compared with the prior art.
The transformation ratio of phase-change material is high.The present invention has been introduced directly into fluid working substance in paraffinic base flexible, porous phase-change material
Portion, fluid working substance flow between phase change grains gap, and heat is carried near most of phase change grains, source is rapidly absorbed
The heat of self-heat power 4, by the temperature gradient in phase-change material heat transfer interface adaptively changing phase change device, therefore phase change device
Interior temperature gradient is smaller；It is different by heating power of the fluid working substance to the phase change grains of different parts, partial phase change
Particle expansion and this characteristic of blocking part channel, make runner all change at any time during the work time, i.e. phase-change accumulation energy
The all adaptive changes in the generation with heat transfer at any time of the heat transfer interface of device, and the direction changed is to make not yet to undergo phase transition
Particle undergo phase transition, therefore the material phase transformation rate of this variable heat transfer interface phase-change energy storage device is high.Solves traditional phase
It is lower to become material thermal conductivity, in use process, there are problems that biggish temperature gradient in material internal, and overcome heat transfer
When interface reaches phase transition temperature, temperature of the material apart from heat transfer interface compared with distal part may be far below transformation temperature, can not occur
Phase transformation；The heat transfer interface of conventional phase change material be it is fixed, the temperature of material internal can not be adjusted by way of changing interface
Degree distribution, causes conventional phase change material to have the defects that larger waste.
The transformation rate of phase-change material is high.The present invention uses flexible heat conducting nano composite material by paraffinic base composite phase-change material
Package, using paraffinic base flexible, porous phase-change material as heat conduction reinforced medium, the rate of heat transfer inside phase-change energy storage device is obtained
Larger raising forms scale in some tens of pm to the phase change grains in hundreds of microns section；Using foam process by above-mentioned phase transformation
The paraffinic base flexible, porous phase-change material of porous media is made in particle；Paraffinic base flexible, porous phase-change material is packaged, shape
At phase-change energy storage device.The uniformity of device interior temperature distribution has also obtained preferably improving；Simultaneously by increasing phase transformation storage
The heat transfer interface area of energy device, and the mode that the interface can also change with the progress of heat transfer, can be more rapidly
The heat for being originated from heat source is absorbed, so that the temperature of heat source is more effectively controlled, so that the transformation rate of phase change device of the invention
It is higher than conventional apparatus.
Heat transfer resistance is small.After paraffinic base flexible, porous phase-change material of the present invention is in conjunction with flexible heat conducting nano composite material,
Inside is separated into many small heat transfer unit particles in one heat transfer network of phase-change energy storage device Inner Constitution, due to net
Network structure inhibits the free convection of paraffin, and heat can quickly be transmitted along the flowing trace between phase change grains gap, and be led to
It crosses biggish specific surface area and diffuses to composite inner rapidly, the Efficient Characterization thermal coefficient of material can be mentioned significantly
Height, improve phase-change energy storage device inside temperature uniformity so that inside device either during solid-state, liquid phase-change all
The smaller temperature difference is maintained, is conducive to phase transition process quickly, efficiently, sufficiently.Since heat can be carried to mostly by fluid working substance
Near number phase change grains, therefore the variation of the thermal contact resistance can't directly influence the endothermic process of phase change device, to drop
The risk that thermal resistance increases when low Reusability.Paraffinic base flexible, porous phase-change material and phase-change material are bonded composite phase-change
After material, heat can quickly be transmitted along flexible heat conducting nano composite material fiber, and be expanded rapidly by biggish specific surface area
It is dissipated to composite inner, the Equivalent Thermal Conductivities of paraffinic base composite phase-change material composite phase-change material is made to have obtained mentioning greatly very much
Height, the risk that thermal resistance increases when reducing Reusability.Solves traditional phase change device Reusability, every time in use, phase transformation
Volume change can all occur for material, may have gap between phase-change material and encapsulating housing, lead to connecing for heat transfer interface
It touches thermal resistance to rise, further weakens the defect of the energy storage effect of entire phase change device.
The sustainable electronic equipment dissipating heat in short-term, under the conditions of the confined space, high heat consumption of the present invention, can make in the confined space
The electronic equipment of short-term operation is effectively radiated, and a kind of brand-new solution is provided.Electronics can preferably be controlled to set
The temperature of standby internal crucial heating device, no matter for promoting the main performance of electronic equipment or promoting reliability has more
Active influence.
Detailed description of the invention
Fig. 1 is the schematic diagram of the cooling system of adaptively changing phase-change material heat transfer interface of the present invention
Fig. 2 be Fig. 1 in the initial state, the microcosmic amplification signal before absorbing heat inside paraffinic base flexible, porous phase-change material
Figure.
Fig. 3 is when partial phase change has occurred in Fig. 1 after heat absorption, and the microcosmic amplification inside paraffinic base flexible, porous phase-change material is shown
It is intended to.
In figure: 1 phase-change energy storage device, 2 difference gauges, 3 positive displacement pumps, 4 heat sources, 5 controllers.
Specific embodiment
Refering to fig. 1-3.According to the present invention, paraffinic base composite phase-change material is wrapped up with flexible heat conducting nano composite material,
Scale is formed in some tens of pm to the phase change grains in hundreds of microns section；Above-mentioned phase change grains are made using foam process porous
The paraffinic base flexible, porous phase-change material of medium；Paraffinic base flexible, porous phase-change material is packaged, phase-change accumulation energy dress is formed
It sets；The positive displacement pump 3 being connected with phase-change energy storage device makes liquid circulation by heat source 4, by test phase-change energy storage device inlet and outlet
2 both ends of difference gauge of pressure difference are connected to the stream socket of phase-change energy storage device 1, and difference gauge 2 and positive displacement pump 3 it
Between connection controller 5 formed cooling system；Difference gauge 2 is powered on, positive displacement pump 3 is opened, 4 heat of heat source is entered by fluid working substance
Phase-change energy storage device, fluid working substance are introduced directly into inside paraffinic base flexible, porous phase-change material, and fluid working substance is stitched in phase change grains
It is flowed between gap, heat is carried near most of phase change grains, rapidly absorb the heat for being originated from heat source 4；Phase-change accumulation energy
The adaptive change with the generation of heat transfer of the heat transfer interface of device, accelerates the heat absorption phase transition process of phase change grains.In phase transformation
In the heat absorption phase transition process of grain, the enthalpy of paraffinic base flexible, porous phase-change material rises, and generates expansion, sufficiently the phase after expansion
Become particle blocked the original glide path in partial phase change particle gap, force more multiple working medium to sufficiently heat absorption, sufficiently it is swollen
Swollen phase change grains flowing.Amount of heat will no longer be received in abundant heat absorption, adequately expanded phase change grains stage, and not sufficiently
There are the working medium of greater flow around heat absorption, not adequately expanded phase change grains, accelerate the heat absorption phase transformation of these phase change grains
Journey；When the phase-change energy storage device inlet and outlet pressure difference that difference gauge 2 detects reaches setting value, paraffinic base flexible, porous phase transformation material
The transformation ratio of material is close to design limit, and controller 5 powers off positive displacement pump at this time, stops fluid working substance circulation.When the difference received
When pressure meter signal reaches preset value, 5 output signal of controller makes positive displacement pump stop working, the variable heat transfer of phase-change energy storage device 1
Interface is the period heat absorption task completed in embodiment.
It specifically includes, first, is wrapped up paraffinic base composite phase-change material using above-mentioned flexible heat conducting nano composite material,
Scale is formed in some tens of pm to the little particle in hundreds of microns section, the present invention is referred to as phase change grains；
Second, numerous phase change grains are made to the form of porous media using foam process, the present invention is referred to as paraffinic base
Flexible, porous phase-change material；
Paraffinic base flexible, porous phase-change material is packaged by third, forms phase-change energy storage device；
4th, positive displacement pump is connected with phase-change energy storage device, and make liquid circulation by heat source, by difference gauge both ends point
It is not connected to the stream socket of phase-change energy storage device；
5th, difference gauge is powered on, the inlet and outlet pressure for starting to test phase-change energy storage device is poor；
6th, positive displacement pump is opened, and its flow is made to keep stablizing, before phase transformation, in paraffinic base flexible, porous phase-change material
The microcosmic amplification in portion is illustrated as shown in Figure 1, arrow therein is flowing trace schematic diagram, and fluid working substance flows between phase change grains
It is dynamic；
7th, heat source is loaded, heat enters phase-change energy storage device by fluid working substance, makes paraffinic base flexible, porous phase transformation material
The enthalpy of material rises, and generates expansion shown in Fig. 2, these adequately expanded phase change grains have blocked the original flowing road in part
Line forces more multiple working medium to not sufficiently heat absorption, not adequately expanded phase change grains flowing；I.e. in this stage, it sufficiently absorbs heat, fill
Amount of heat will no longer be received by dividing the phase change grains of expansion, and not absorb heat sufficiently, exists around not adequately expanded phase change grains
The fluid working substance of greater flow, these fluid working substances are that they bring more heats, and accelerate the heat absorption of these phase change grains
Phase transition process, until most phase change grains are all expanded, the flow resistance inside paraffinic base flexible, porous phase-change material has been at this time
In higher position；When most phase change grains are all expanded, the flow resistance inside paraffinic base flexible, porous phase-change material is
In higher position, when the phase-change energy storage device inlet and outlet pressure difference that difference gauge 2 detects reaches setting value, show paraffinic base
The transformation ratio of flexible, porous phase-change material has been approached design limit, and controller 5 powers off positive displacement pump at this time, stops fluid working substance and follows
Ring.In whole work process, the case where previous step, repeatedly, generally occurs, and improves the transformation ratio of phase change grains significantly.
Claims (5)
1. a kind of method of adaptively changing phase-change material heat transfer interface, it is characterised in that include the following steps: with flexible thermally conductive
Nanocomposite wraps up paraffinic base composite phase-change material, forms scale in some tens of pm to the phase transformation in hundreds of microns section
Grain；Above-mentioned phase change grains are made to the paraffinic base flexible, porous phase-change material of porous media using foam process；Paraffinic base is soft
Property porous phase-change material be packaged, formed phase-change energy storage device (1)；The positive displacement pump (3) being connected with phase-change energy storage device, makes
Liquid circulation will be tested difference gauge (2) both ends of phase-change energy storage device (1) inlet and outlet pressure difference, be separately connected by heat source (4)
Stream socket in phase-change energy storage device (1), and connect controller (5) between difference gauge (2) and positive displacement pump (3) and formed and dissipate
Hot systems；Difference gauge (2) are powered on, are opened positive displacement pump (3), heat source (4) heat enters phase-change energy storage device by fluid working substance
(1), fluid working substance is introduced directly into inside paraffinic base flexible, porous phase-change material, and fluid working substance flows between phase change grains gap
It is dynamic, heat is carried near most of phase change grains, the heat for being originated from heat source (4) is rapidly absorbed；Phase-change energy storage device (1)
Heat transfer interface adaptive change with the generation of heat transfer, in the heat absorption phase transition process of phase change grains, paraffinic base flexible, porous
The enthalpy of phase-change material rises, and generates expansion, and sufficiently the phase change grains after expansion have blocked partial phase change particle gap original
Glide path, force more multiple working medium to sufficiently heat absorption, the not flowing of adequately expanded phase change grains, and sufficiently absorbing heat, filling
Amount of heat will no longer be received by dividing the phase change grains stage of expansion, and not absorbed heat sufficiently, around not adequately expanded phase change grains
There are the working medium of greater flow, accelerate the heat absorption phase transition process of these phase change grains.
2. the method for adaptively changing phase-change material heat transfer interface as described in claim 1, it is characterised in that: work as difference gauge
(2) when the phase-change energy storage device inlet and outlet pressure difference detected reaches setting value, the phase transformation of paraffinic base flexible, porous phase-change material
Rate at this time powers off positive displacement pump close to design limit, stops fluid working substance circulation.
3. the method for adaptively changing phase-change material heat transfer interface as described in claim 1, it is characterised in that: when most phase transformations
Particle is all expanded, and the flow resistance inside paraffinic base flexible, porous phase-change material has been in higher position, and difference gauge (2) is visited
When the phase-change energy storage device inlet and outlet pressure difference measured reaches setting value, show the transformation ratio of paraffinic base flexible, porous phase-change material
Design limit is had been approached, controller (5) powers off positive displacement pump at this time, stops fluid working substance circulation.
4. the method for adaptively changing phase-change material heat transfer interface as described in claim 1, it is characterised in that: to positive displacement pump
(3) it is powered on, after the pressure that difference gauge (2) is measured is stablized, controller (5), which is powered on heat source (4), to generate heat, with phase-change accumulation energy
Device (1) can be changed the endothermic process of heat transfer interface, and the internal phase change grains of phase-change energy storage device (1) produce expansion, swollen
Internal heat transfer interface is constantly changing during swollen；Also, the flowing pressure difference at phase-change energy storage device (1) both ends gradually on
It rises.
5. the method for adaptively changing phase-change material heat transfer interface as described in claim 1, it is characterised in that: work as difference gauge
(2) when collected pressure difference reaches setting value, controller (5) sends out off signal to positive displacement pump (3), and positive displacement pump (3) stops at this time
Only work, heat absorption of the variable heat transfer interface execution cycle task of phase-change energy storage device (1).
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| CN110963044B (en) * | 2019-12-24 | 2024-02-13 | 南京航空航天大学 | Wing deicing device based on nanocomposite phase change material and working method thereof |
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| CN201662258U (en) * | 2010-01-25 | 2010-12-01 | 中国农业机械化科学研究院呼和浩特分院 | Solar phase-change heat reservoir |
| CN103509526A (en) * | 2012-06-17 | 2014-01-15 | 曹雪娟 | Porous substrate phase-changing heat storage particles and preparation method thereof |
| CN203116576U (en) * | 2012-11-26 | 2013-08-07 | 华南理工大学 | Heat pipe cluster |
| CN103862742A (en) * | 2014-03-14 | 2014-06-18 | 中国科学院深圳先进技术研究院 | Phase-change metal thermal interface composite material and preparation method thereof |
| CN104001458A (en) * | 2014-06-16 | 2014-08-27 | 深圳市优能橡塑制品股份有限公司 | Phase-change thermoregulation microcapsule and preparing method thereof |
| WO2016149500A1 (en) * | 2015-03-18 | 2016-09-22 | The Texas A&M University System | Flexible and compliant thermal interface materials |
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| CN107509359A (en) | 2017-12-22 |
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