CN108728047A - Purposes of the cetylamine as phase-changing energy storage material - Google Patents

Purposes of the cetylamine as phase-changing energy storage material Download PDF

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Publication number
CN108728047A
CN108728047A CN201811070844.8A CN201811070844A CN108728047A CN 108728047 A CN108728047 A CN 108728047A CN 201811070844 A CN201811070844 A CN 201811070844A CN 108728047 A CN108728047 A CN 108728047A
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China
Prior art keywords
phase
heat
cetylamine
thermal energy
energy
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Pending
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CN201811070844.8A
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Chinese (zh)
Inventor
李安
孙寒雪
朱照琪
陈丽华
陈涛
梁卫东
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Lanzhou University of Technology
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Lanzhou University of Technology
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Priority to CN201811070844.8A priority Critical patent/CN108728047A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • 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
    • Y02E60/14—Thermal energy storage
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

Purposes of the cetylamine as phase-changing energy storage material, the fusion temperature when compound energy storage are 26.3 ~ 46.2 DEG C, and setting temperature when heat release is 26.7 ~ 29.7 DEG C；Phase-change accumulation energy latent heat is 230.1 ~ 283.9 kJ/kg, which has low degree of supercooling（<10℃）With high latent heat, when absorbing and storing thermal energy, heat source temperature should control within the scope of 46.2 ~ 70 DEG C.The organic phase change material especially suitable under environmental condition thermal energy, industry more than waste heat or solar energy storage, and by the thermal energy of storage for Indoor environment heat supply or driving absorption refrigeration mechanism cold, to solve thermal energy for giving use in space or temporal mismatch problem, the utilization ratio of the energy is improved.

Description

Purposes of the cetylamine as phase-changing energy storage material
Technical field
The present invention relates to the technologies of phase-change heat-storage material, specifically utilize organic compound by phase transition absorb or A large amount of thermal energy are discharged, thermal energy is solved for giving use in space or temporal mismatch problem, improves the utilization ratio of the energy.
Background technology
Renewable Energy Development global pollution and weather for caused by solving serious energy crisis and fossil fuel The serious environmental problems such as warm are of great significance.So far, the energy-consuming of fossil fuel is relied on for a long time for satisfaction Active demand, develop a variety of green sustainable energies such as wind energy, water energy, solar energy, nuclear energy, biomass energy, geothermal energy.Separately On the one hand, effective use of energy sources and reduction energy waste are to reduce the substituted pesticides of energy consumption and discharge.As a kind of energy Storage platform, phase-changing energy storage material by phase from solid-state can become liquid or liquid becomes storing when solid-state and release latent heat Carry out adjusting ambient temperature.In phase transition process, they are when temperature is varied slightly with larger latent heat.Since its high-energy is deposited Density, low temperature variation and considerable economic benefit characteristic are stored up, phase-changing energy storage material has become various thermal centers and can answer in recent years With（Such as solar energy storage）Theme.
Current many phase-changing energy storage materials are stored for thermal energy or solar energy, including inorganic phase-changing material, such as hydrated salt and Metal alloy, organic phase change material, such as paraffin, aliphatic acid, polyalcohol（Such as polyethylene glycol）, sugar alcohol（Antierythrite and mannitol） Deng.For given phase-change material, latent heat is essential for its practical application.In known phase-change material, hydration Salt and the metal alloy usually high latent heat with 68-1163 kJ/kg, however most is only applicable to high-temperature heat accumulation, And with strong phase separation and supercooling, greatly hamper their practical application.In contrast, organic phase change material has Medium latent heat within the scope of 86-340 kJ/kg, phase transition temperature are suitable for low temperature stored energy application between 0 and 172 DEG C.
Currently, for phase-change material in the application of low temperature energy storage field, paraffin class latent heat of phase change ranging from 170-269 kJ/ Kg, fatty acid latent heat of phase change ranging from 148-218 kJ/kg, polyalcohols latent heat of phase change ranging from 83-187 kJ/kg, sugar Alcohols latent heat of phase change ranging from 263-340 kJ/kg.Wherein sugar alcohol has been developed as efficient organic phase change material, high at its Under potential heat value, sugar alcohol can compete with inorganic phase-changing material and using the intrinsic advantage of organic phase change material, in thermal energy and too It is positive to show huge potentiality in terms of energy storage.It is inspired by these discoveries, seeks the novel phase-change material pair with high latent heat It is extremely important in renewable and energy sustainability system structure.The molecular formula of the organic compound of cetylamine is：C16H35N, Molecule has the following structure：
。
Invention content
The object of the present invention is to provide a kind of cetylamine as phase-change heat-storage material field of thermal energy storage application.
The present invention is purposes of the cetylamine as phase-changing energy storage material, and the molecular formula of cetylamine is：C16H35N；With as follows Structure：, The organic compound can store by phase transformation or discharge thermal energy, the purposes as phase-changing energy storage material.
Usefulness of the present invention is：Thermal energy is solved for giving use in space or temporal mismatch problem, is improved The utilization ratio of the energy；The organic phase change material has low degree of supercooling（<10℃）With high latent heat, the organic phase change energy storage material Exothermic temperature, high heat storage capacity and good long-time service stability are inhaled with suitable.The Organic phase change thermal storage material The thermal energy of storage can be used as driving the heat source of Absorption Refrigerator work or directly as indoor life heat source.
Description of the drawings
Fig. 1 is the DSC figures in embodiment 1.
Specific implementation mode
The present invention is purposes of the cetylamine as phase-changing energy storage material, and the molecular formula of cetylamine is：C16H35N；With as follows Structure：, should Organic compound can store by phase transformation or discharge thermal energy, the purposes as phase-changing energy storage material.
Purposes of the above-described cetylamine as phase-changing energy storage material, fusion temperature when cetylamine heat accumulation is 26.3 ~ 46.2 DEG C, setting temperature when heat release is 32.6 ~ 34.7 DEG C；Phase-change accumulation energy latent heat is 280.3 ~ 309.7 kJ/kg, is being absorbed simultaneously When storing thermal energy, heat source temperature should control within the scope of 49.9 ~ 80 DEG C.
Purposes of the above-described cetylamine as phase-changing energy storage material, cetylamine be suitable for environmental condition under thermal energy, Waste heat or solar energy storage more than industry, and by the thermal energy of storage for Indoor environment heat supply or driving absorption refrigeration mechanism It is cold.
Purposes of the above-described cetylamine as phase-changing energy storage material, cetylamine storage are originated from the heat under environmental condition Can, industry more than waste heat or solar energy storage and obtain thermal energy when, be phase-change material to be placed in container, then phase transformation material will be filled Waste heat heat source or electric heater are in direct contact and are allowed to molten with heating phase-change material more than the container of material and solar thermal collector, industry Change, or by thermal energy, waste heat heat source or electric heater more than solar thermal collector, the industry pass in container by heat-transfer working medium Simultaneously heating phase-change material is allowed to the method melted to realize to phase-change material, and the heat-transfer working medium is water vapour or conduction oil.
Purposes of the above-described cetylamine as phase-changing energy storage material, the thermal energy by phase-change material storage is for building When building object indoor heating or driving absorption refrigeration mechanism cold, thermal energy need to be conveyed to interior from phase-change material using heat-transfer working medium Heater or Absorption Refrigerator, the working medium can be water or conduction oil；When using water as heat-transfer working medium, by phase transformation The hot water of material heating can also be used directly as domestic hot-water.
The above-described thermal energy by phase-change material storage is inhaled by refrigerant heat transfer for Indoor environment heat supply or driving When receipts formula refrigeration machine cooling, Temperature of Working after phase-change heat-storage material heats can before heating Temperature of Working to 50 DEG C of range It is interior to continuously adjust.
By specific embodiment, present invention is further described in detail, it is intended to reader be helped to be better understood from the present invention Essence and feature, not as to this case can practical range restriction.
Embodiment 1：
About 5mg organic phase change materials are taken, in DSC 200F3（NETZSCH, Germany make）On differential scanning calorimeter, with The heating rate of 5 DEG C/min, DEG C progress differential scanning calorimetry, the fusing point for measuring the organic phase change material are from 0 DEG C to 100 44.7 ~ 49.9 DEG C, fusion enthalpy is about 280.3 kJ/kg；About 5mg organic phase change materials are taken, in DSC 200F3（NETZSCH, Germany make）On differential scanning calorimeter, with the warming and cooling rate of 5 DEG C/min, carried out 50 times in 0 DEG C to 100 DEG C range Differential scanning calorimetry is recycled, the fusing point for measuring the organic phase change material is stablized within the scope of 44.7 ~ 49.9 DEG C always, setting temperature Within the scope of 32.6 ~ 34.7 DEG C, fusion enthalpy is stablized within the scope of 280.3 ~ 309.7 kJ/kg always.
Embodiment 2：
It is 5mm by outer diameter, it is 5mm, disk diameter 4.5cm that the copper pipe of wall thickness 0.3mm, which is bent into tube spacing, totally 4 layers of disk structure At coil pipe, by coil pipe be put into around by 1cm thickness asbestos material package the straight type glasses of 150mL in, adding 100g has Machine phase-change material, coil pipe is embedded to, then rim of a cup is covered with thermal insulation material, the port of coil pipe emersion lid 2cm again with heat-resistant adhesive Pipe connects；The temperature for controlling electric heater is 70 DEG C, from bottom-heated glass, organic phase change material is made all to melt, stopped Heating, 25 DEG C of tap water is passed through into coil pipe, controls the flow of water, and can control exit water temperature degree is 38 DEG C.
Embodiment 3：
It is 80 DEG C by the electric heater temperature control in embodiment 2, from bottom-heated glass, keeps organic phase change material all molten Change, stop heating, 25 DEG C of conduction oil is passed through into coil pipe, control the flow of oil, can control outlet oil temperature is 45 DEG C.
Embodiment 4：
It is 80 DEG C by the electric heater temperature control in embodiment 2, from bottom-heated glass, keeps organic phase change material all molten Change, stop heating, 25 DEG C of conduction oil is passed through into coil pipe, controls the flow of oil, outlet oil temperature can be made to be gradually increased to 50 DEG C, and stablize in this temperature.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks Domain is included within the scope of the present invention.

Claims (6)

1. purposes of the cetylamine as phase-changing energy storage material, the molecular formula of cetylamine are：C16H35N；It has the following structure：, this is organic Compound can store by phase transformation or discharge thermal energy, the purposes as phase-changing energy storage material.
2. purposes of the cetylamine according to claim 1 as phase-changing energy storage material, it is characterised in that when cetylamine heat accumulation Fusion temperature be 44.7 ~ 49.9 DEG C, setting temperature when heat release is 32.6 ~ 34.7 DEG C；Phase-change accumulation energy latent heat be 280.3 ~ 309.7 kJ/kg, when absorbing and storing thermal energy, heat source temperature is within the scope of 49.9 ~ 80 DEG C.
3. purposes of the cetylamine according to claim 1 as phase-changing energy storage material, it is characterised in that cetylamine is suitable for Waste heat or solar energy storage more than thermal energy, industry under environmental condition, and the thermal energy of storage is used for Indoor environment heat supply or drive Dynamic absorption refrigeration mechanism cold.
4. purposes of the cetylamine according to claim 2 as phase-changing energy storage material, it is characterised in that the cetylamine storage Deposit under environmental condition thermal energy, industry more than waste heat or solar energy storage and obtain thermal energy when, be to be placed in phase-change material In container, then waste heat heat source more than the container for filling phase-change material and solar thermal collector, industry or electric heater be in direct contact Be allowed to melt with heating phase-change material, or by heat-transfer working medium by thermal energy from solar thermal collector, industry more than waste heat heat source or electricity Heater passes to the phase-change material in container and heating phase-change material is allowed to the method melted to realize, the heat-transfer working medium is Water vapour or conduction oil.
5. purposes of the cetylamine according to claim 2 as phase-changing energy storage material, it is characterised in that described by phase transformation material Material storage thermal energy for Indoor environment heat supply or driving absorption refrigeration mechanism cold when, need to use heat-transfer working medium by thermal energy from Phase-change material is conveyed to household heater or Absorption Refrigerator, and the working medium can be water or conduction oil；When using water conduct When heat-transfer working medium, the hot water heated by phase-change material can also be used directly as domestic hot-water.
6. the thermal energy according to claim 5 by phase-change material storage by refrigerant heat transfer for Indoor environment heat supply or When driving absorption refrigeration mechanism cold, it is characterised in that Temperature of Working after phase-change heat-storage material heats can working medium before heating Temperature is to can continuously adjust in the range of 50 DEG C.
CN201811070844.8A 2018-09-14 2018-09-14 Purposes of the cetylamine as phase-changing energy storage material Pending CN108728047A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111518521A (en) * 2020-05-20 2020-08-11 温州大学 Preparation method of hexadecylamine/hydroxyapatite composite phase change material
CN112063162A (en) * 2020-08-19 2020-12-11 浙江理工大学 Spinning-grade polyamide composite fatty amine shaping energy storage material and preparation method thereof
CN113912641A (en) * 2021-10-29 2022-01-11 四川大学 Bio-based phase-change energy-storage type flame retardant and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111518521A (en) * 2020-05-20 2020-08-11 温州大学 Preparation method of hexadecylamine/hydroxyapatite composite phase change material
CN112063162A (en) * 2020-08-19 2020-12-11 浙江理工大学 Spinning-grade polyamide composite fatty amine shaping energy storage material and preparation method thereof
CN113912641A (en) * 2021-10-29 2022-01-11 四川大学 Bio-based phase-change energy-storage type flame retardant and preparation method thereof

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