Heat Storage Performance Research Articles

Machine learning and multilayer perceptron enhanced CFD approach for improving design on latent heat storage tank

Solid-liquid phase change heat storage is an important method to solve the mismatch of the generation and usage of waste heat, which is conducive to decarbonization and energy conservation. However, there always exists inhomogeneity for the melting and temperature of the phase change material (PCM) in solid–liquid phase change heat storage. Changing the shape of the heat storage tank will change the distance of heat transfer to the phase change material, thus changing the heat storage performance. Therefore, this paper designed ten shapes of trapezoidal tank with different proportions of upper and lower radius. And the heat storage performance of ten cases were investigated through the designed numerical model, whose accuracy is convinced through comparison with experimental results. Many indexes are proposed to evaluate the properties of the latent heat thermal energy storage (LHTES) from the view of whole region, uniformity among subregions, and the storage heat performance of integrity. Except for drawing mass fraction, temperature, and streamline contours, the temperature proportion and the average velocity are proposed to quantitatively evaluate the temperature distribution and convection intensity. The results showed that the cases with larger upper radius are shorter than cases with larger lower radius. In addition, the shortest melting time is 17210 s, which is about 39.2% shorter by 11080 s than that of basic case. The evaluation from the view of uniformity also indicated that properly increasing the PCM amount is beneficial for improving the melting uniformity. The most uniform temperature and mass fraction are case 5 and case 4, respectively, with 12.92% and 38.28% improvement. Finally, one multilayer perceptron (MLP) network model is built to predict the melting fraction and total heat storage. After training, one model with a deviation lower than 10% between simulation and prediction is set up.

Numerical investigation of the influence of unsteady inlet temperature on heat storage performance of a novel bifurcated finned shell-tube heat storage tank

Due to the change of solar radiant intensity with time, the melting process in the phase change energy storage system connected to the solar collector occurs under the unsteady inlet temperature. Three unsteady inlet temperature conditions have been proposed, and their average inlet temperature has been used as the corresponding steady inlet temperature conditions to form three comparative working conditions. Under different comparison conditions, a three-dimensional numerical comparison analysis has been conducted on the heat storage performance of a novel bifurcated finned shell-tube heat storage tank. Compared with the corresponding steady inlet temperature condition, the unsteady inlet temperature condition can accelerate the melting process and improve the temperature uniformity of the phase change material. The liquid fraction differences of TA and Ta, TC and Tc at the end of the reaction are 9.5% and 7.5% respectively, and the difference in the time required for the liquid fractions of TB and Tb to reach 1 is 17.7%. The evaluation coefficients for the three comparative working conditions are 3.1, 1.3 and 3.6 respectively. The results can provide a certain reference value for the performance optimization and practical application of the latent heat storage system.

Studying the performance of phase change heat storage enhanced by ultrasonic energy

The ultrasonic wave could propagate in elastic media and bring ultrasonic flow which could effectively strengthen the convective heat transfer. Thus, various research works have been carried out on the enhancement effect for its potential future application. This work studied the influence of the acoustic flow effect on the melting process of phase change material. For the first, the influence of ultrasonic acting position on enhancement effect was examined. Then, the effectiveness of ultrasonic energy on enhancing heat storage process was discussed. The present work was also compared with other representative studies. The results show that when the side surface of the container is a constant temperature heating surface, the ultrasonic vibration surface at the bottom of the container has best melting performance of phase change heat storage. Then, a new evaluation method of heat transfer enhancement was proposed. The new method cannot only measure the improvement of melting performance, but also clearly measure the relationship between the improvement of melting performance and the consumption of ultrasonic energy. Finally, by contrast and analysis with representative studies, the development potential and further research direction of ultrasonic enhanced phase change heat storage are clarified. This work can provide reference for the further application of active heat transfer enhancement technology in the field of phase change heat storage.

Biomimetic optimized vertically aligned annular fins for fast latent heat thermal energy storage

Latent heat thermal energy storage (LHTES) technology has been widely used in balancing energy demand and intermittent energy supply, as well as thermal management in buildings, but suffers from slow heat storage rates. Here, biomimetic topology-optimized vertically aligned annular fins are proposed to accelerate heat storage performance. Taking the maximum average temperature as the optimization objective function, optimized biomimetic fins can shorten the melting time by 45.9% compared with traditional fins as verified by experimental measurements. Such a fast heat storage rate is also superior to that of pitch-varying fins and diameter-varying fins by 18.4% and 23.5%, respectively. Meanwhile, the temperature uniformity is greatly improved by biomimetic fins with a reduction of average temperature difference in phase change materials (PCMs) by 75.3%. The underlying mechanism can be attributed to accelerated melting of PCMs close to the outer bottom boundary due to unique bifurcation structures of topology optimized fins. The fractal dimension of optimized fins is similar to that of leaf vein structures, demonstrating that proposed topology structures are close to Natural’s optimal solutions. This study provides novel biomimetic structures for accelerating thermal energy storage rate and promotes the application of biomimetics in LHTES techniques.

Experimental and simulation study on the heat transfer mechanism and heat storage performance of copper metal foam composite paraffin wax during melting process

Experimental and simulation study on the heat transfer mechanism and heat storage performance of copper metal foam composite paraffin wax during melting process

A numerical evaluation of a latent heat thermal energy storage system in the presence of various types of nanoparticles

Due to the high demand for using phase change materials (PCMs) in thermal systems and to the goal of improving the thermal efficiency of solar systems, herein, the heat storage performance of nano PCM (nPCM) was numerically scrutinized. For this purpose, a vertical double-tube heat exchanger containing paraffin and five different nanoparticles was simulated. By originating scientific results, 31 radial fins were considered on the tube side of the heat exchanger. RT35 paraffin wax as PCM includes a melting point close to the ambient temperature, making it easy to investigate domestic usage's charging and discharging processes. It was found that nanoparticles be able to decrease the duration of melting and solidification processes. Adding 5 vol% of Cu, CuO, TiO2, Carbon nanotube (CNT), and Graphene nanoplatelet (GNP) to the PCM caused 6.6%, 10.2%, 10.7%, 33.4%, and 56.4% of the melting time reduction, while time reductions of 20.3%, 13.4%, 13.2%, 43.1%, and 69.7% for solidification were observed, respectively. The results showed that thermal conductivity, density, and heat capacity properties affect the melting process, whereas thermal conductivity was the most critical parameter in the solidification process. Thus, despite the better performance of CuO and TiO2 compared to Cu in the melting process, it diminished the solidification time greater than the others. Also, the presence of nanoparticles was more significant in the solidification process. Moreover, the heat transfer coefficient of GNP-PCM was the highest among others (66.63 W/m2.K for 5 vol%), while it was 24.68 W/m2.K for 5 vol% of Cu-PCM. This comprehensive study yielded beneficial results for preparing more efficient thermal energy storage systems.

Experimental study of the thermal performance of heat storage-integrated solar receiver for parabolic dish collectors.

Parabolic dish collectors (PDC) efficiently produce hot fluids for medium-temperature applications. Thermal energy storage employs phase change material (PCM) due to its high energy storage density. This experimental research proposes a solar receiver for the PDC with a circular flow path surrounded by PCM-filled metallic tubes. The selected PCM is a eutectic mixture of KNO3 and NaNO3 (60%:40% by wt). At a peak solar radiation of about 950 W/m2, the receiver surface reached a maximum of 300°C. The modified receiver is tested outdoors with water as a heat transfer fluid (HTF). The energy efficiency of the proposed receiver is about 63.6%, 66.8%, and 75.4% for the HTF at 0.111kg/s, 0.125kg/s, and 0.138kg/s, respectively. The receiver's exergy efficiency is recorded at about 8.11% at 0.138kg/s. The receiver with a maximum reduction of CO2 emission is about 1.16 tons recorded at 0.138kg/s. The exergetic sustainability is analyzed using key indicators, like the waste exergy ratio, improvement potential, and sustainability index. The proposed receiver design with PCM effectively produces maximum thermal performance with a PDC.

Experimental and Numerical Optimization Study on Performance of Phase-Change Thermal Energy Storage System

Promoting the use of solar energy resources has always involved the challenges of instability and supply–demand mismatch. The key to solving these issues is to efficiently store and utilize solar energy resources using high-performance heat storage devices. This study designed a high-performance shell-and-tube phase-change thermal storage device and established a numerical model using ANSYS software to summarize the device’s dynamic melting law. To verify the accuracy of the numerical simulation, a performance testing platform for the phase-change thermal storage device was built to investigate the impact of various factors, such as the inlet water temperature, inlet water flow rate, type of heat storage, and initial temperature of the device, and to reveal the change law of the device’s performance. The results show that the inlet water temperature has the most significant impact on the device’s heat storage and release performance. When the device’s heat storage or release is used for heating, changing the inlet water flow rate has a weak and limited effect on the device’s performance. However, when the device’s heat release is used to provide domestic hot water, increasing the make-up water temperature and reducing the inlet water flow rate can significantly improve the device’s effective heat release. Furthermore, based on the experimental validation of the model’s correctness, this study further simulated and studied the impact of different factors on the device’s heat storage process to optimize its structural design and provide technical references for the device’s actual operation and installation. The results show that the placement of fins has a negligible effect on the performance of the heat storage device while reducing the fin spacing and increasing the fin thickness can significantly improve the melting efficiency of the phase-change material (PCM). Additionally, the heat storage characteristics of the device are significantly better in the vertical installation mode than in the horizontal installation mode. This study provides theoretical guidance and technical references for the design and use of phase-change thermal storage devices.

Albizzia pollen-inspired phase change capsules accelerate energy storage of packed-bed thermal energy storage system

Packed-bed thermal energy storage (PBTES) system using phase change capsules has been widely applied for thermal energy harvesting and management to alleviate unbalanced energy supply and demand problems. However, the slow thermal energy charging is always a daunting challenge limiting its fast development. Here, a bionic phase change materials (PCMs) capsule by mimicking the natural structure of albizzia pollen is proposed. The heat storage performance and economy of capsules with different internal fin structures are investigated numerically and experimentally. The thermal charging of pollen-type PCMs capsules is the fastest, whose melting time prominently reduces by 19 %, 24 %, 41 % and 61 % compared to the plate-type, ring-type, column-type, and pure PCMs capsules, respectively. That is because the contact area between the skeleton and the capsule wall is increased and the average distance between PCMs and the heat transfer surface is shortened. The pollen-type capsules exhibit the best economy with the exergy efficiency is improved by 15 % compared to pure PCMs capsule. By optimizing the ratio of fin length to radius (L/R) to 5/6, the melting time can be further reduced by 62 % and the exergy efficiency can be improved by 16 % owing to the enhanced heat transfer rate in the center of the pollen-type capsules. A PBTES system is further built based on optimized pollen-based capsules, and faster heat storage rate is successfully demonstrated in experiments. These results provide alternative solutions for optimizing PBTES systems and improving their thermal energy storage performances.

Numerical Simulation of the Ca(OH)2/CaO Thermochemical Heat Storage Process in an Internal Heating Fixed-Bed Reactor

Using a Ca(OH)2/CaO thermochemical heat storage system is an effective way to promote the utilization of renewable energy. However, poor thermal conductivity restricts the application of a widely used fixed-bed reactor. To improve the heat storage rate, the internal heating mode, which heats the reactant via the internal heating tube instead of the external wall, was adopted, and the heat storage process in the fixed-bed reactor was investigated numerically. The results show that the number and location of tubes have a significant impact on heat storage performance. Compared with the external wall heating mode, the optimized scheme of six internal heating tubes can shorten the reaction time by 21.78%. The temperature and reaction extent distribution reveal that as the reaction proceeds, the optimized scheme has a higher temperature and reaction extent. Additionally, the effects of different conditions, such as solid particle porosity, wall temperature, outlet pressure, and solid particle size, were also analyzed. The study demonstrates that increases in solid particle porosity, wall temperature, and solid particle size as well as a decrease in outlet pressure can improve the heat storage rate.

Performance study and heating simulation on novel latent heat thermal energy storage device suit for air source heat pump

Latent heat thermal energy storage (LHTES) technology can solve the problem of limited performance improvement of air source heat pump (ASHP) systems due to the time mismatch between building energy demand and operational efficiency in low temperatures. Therefore, this paper proposes a LHTES device suitable for the ASHP system. Firstly, the internal structure is obtained by ANSYS numerical simulation. Furthermore, experiments are carried out to verify the heat storage and release performance of the proposed device under different inlet water temperatures and flow rates. Finally, the operational effects of the ASHP-LHTES combined heating system are analyzed by TRNSYS. The design results show that a liquid phase ratio of 97.24 % is achieved with a pipe diameter of 16 mm, tube pitch of 70 mm, and 1/2 horizontal tube fins. Experiment results exhibit that the proposed device performs excellently under optimal conditions, with 89.7 % effective heat storage efficiency and 92.5 % available heat release efficiency. TRNSYS results indicate that the annual operating cost of the combined heating system saves 32.9 % compared with the single ASHP heating system, although the power consumption increases by 24.4 %. This study can provide theoretical support for the application of low-temperature LHTES devices in the ASHP system.

Shape-stable erythritol composite phase change materials with controlled latent heat release for spatiotemporally thermal energy utilization

Phase change materials (PCMs) have been extensively concerned recently as suitable medium for thermal energy storage due to their absorbing or releasing a large amount of latent heat in the phase change process. However, traditional PCMs usually crystallize spontaneously to release their latent heat in the cooling process, which greatly limits their practical application in thermal energy long-term storage and controllable release. Herein, we designed and synthesized a shape-stable erythritol (ERY)-based composite PCM with attractive performance of latent heat controlled storage and release using a facile aqueous fabrication route. In this composite, calcium ions cross-linked with sodium alginate is introduced to construct strong hydrogen bonding with ERY to increase the activation energy barrier for stabilizing supercooling, thus realizing long-term latent heat stored in supercooling state. The supercooled ERY composite can be maintained at room temperature for 50 days and subsequently controllably releases latent heat by thermal or mechanical trigger method. Meanwhile, the ERY composite exhibits excellent shape stability without any leakage over the phase change temperature. In addition, the crystallization enthalpy can reach 181.2 J/g, which can be maintained even after 80 thermal cycles, showing superior thermal energy storage capacity and repeatability. The crystallization kinetics study reveals that the crystallization mode of the ERY composite is three-dimensional growth spherical diffusion. This work provides an important strategy for the design and synthesis of shape-stable PCMs with controllable latent heat storage and release performance, which is of great prospect for the development of spatiotemporally thermal energy storage technology.

Eco-friendly wood plastic composites with biomass-activated carbon-based form-stable phase change material for building energy conversion

Phase change materials (PCM) can store heat energy through the process of phase change and keep the ambient temperature in a comfortable range, thus reaching the aim of energy conservation and emission reduction. To improve the latent heat capacity, activated carbon (AC) with a dendritic pore structure was used as the carrier, and polyethylene glycol (PEG) was loaded by vacuum adsorption method. A dendritic pore structure with a nesting pattern of macropores, mesopores, and micropores was formed through the steam activation process of waste wood chips, leading to a high load capacity (70%) and uniform distribution, which showed high heat storage performance (ΔHm reached 116 J/g). Then the form-stable phase change material with satisfactory performance (AC/PEG-70) was combined with wood flour/ high-density polyethylene (WF/HDPE) through blending and hot pressing to fabricate phase change heat storage wood-plastic composite material (A-WPC). When the AC/PEG-70 content was 50%, the elongation at break increased by 167% (20%), and the rigidity of the material enhanced. ΔHm of A-WPC-50 was 19 J/g, undoubtedly at this point, achieving the expected thermal performance. Thus, we prepared an eco-friendly wood-plastic composite with high latent heat capacity and high stability by using the dendritic pore structure of biomass activated carbon-based form-stable PCM, which has great significance in promoting energy conservation and emission reduction, responding to green technological innovation and promoting the development of the green and low-carbon industry.

A comprehensive approach combining gradient porous metal foam and the magnetic field to regulate latent heat storage performance

This study proposes a comprehensive regulation method of gradient porous metal structure combined with the magnetic field to improve the controllability of heat utilization of latent heat thermal energy storage (LHTES) unit. Melting and solidification are considered. The enthalpy porosity method and magnetic force model describe the phase change of phase change material (PCM) and the movement of Fe3O4 nanoparticles under the magnetic field and assume the local thermal non-equilibrium model of metal foam. The numerical model is consistent with the visual experimental results of melting front evolution. The effects of magnetic nanoparticle concentration and gradient porosity on heat transfer and thermal energy change during melting and solidification are numerically studied. The results show that the phase change rate increases with the concentration of nanoparticles. The positive magnetic field further accelerates the phase change and heat energy change. The addition of copper foam considerably shortened the phase change time. The positive magnetic field accelerated the melting and heat energy change rate of PCM in copper foam by 18.2% and 23.1%, but the improvement of solidification was weak. Based on magnetic field promotion, the setting of porosity spacing with different gradients can regulate the phase interface uniformity, total heat energy, and heat energy change rate. Finally, according to different heat utilization scenarios of the LHTES system, this study gives recommended cases to optimize the performance of melting, solidification, and the phase change cycle.

A medium-temperature, tubeless heat exchanger based on alloy microencapsulated phase change material (MEPCM)/ceramic composites

High-performance heat storage materials and devices are urgently needed to meet the demand for efficient heat storage. Herein, a novel SnBi58 alloy microencapsulated phase change material (MEPCM)/ceramic composite with flow channels inside is fabricated for medium-temperature heat storage, which combines the characteristics of sensible heat storage (SHS) and latent heat storage (LHS). Then a tubeless heat exchanger based on the composite is constructed, and its heat storage performance is experimentally studied. The results show that the thermal conductivity of the composite-based heat exchanger is doubled (up to 3.09 W/(m·K)) and the heat storage density is increased by 30.4% to 559.1 MJ/m3 compared with the ceramic-based heat exchanger. Meanwhile, the heat storage performance of the heat exchanger can be improved with the increase of inlet temperature and mass flow rate, and it is more sensitive to the response of the inlet temperature. Furthermore, the average heat storage duty of the heat exchanger reaches 1183 W/(m3·°C), which is 3.56 times the mean value of other heat storage devices. Finally, test results confirm the high thermal reliability of the composite, which can meet the tubeless heat exchange requirements.

Shape stabilized three-dimensional porous SiC-based phase change materials for thermal management of electronic components

As electronic components get smaller and more powerful, effective thermal management is needed to address the problem of more heat accumulation due to increased power density. Phase change materials (PCM) have shown great potential in thermal management within confined spaces, but the low thermal conductivity of PCM, and low enthalpy and electrical resistance of composite PCM (CPCM) significantly limit its application in electronic systems. Herein, porous silicon carbide felt (SiC) with stable shape was prepared by using commercial carbon fiber felt (CF) as carbon source. CPCM was prepared by using a multi-layer porous network structure composed of silicon carbide nanowires and silicon carbide fibers as a three-dimensional frame structure to seal paraffin (PA), which improved the thermal conductivity and electrical resistivity of the PCM. The PA/S1 based on porous SiC skeleton has high thermal conductivity (0.794 W·(m·K)−1), high enthalpy (231.4 J·g−1), high energy storage efficiency (89.81%) and high electrical resistivity (2.05 × 106 Ω·cm), as well as good shape stability and acceptable thermal performance. As a kind of thermal management material, CPCM shows excellent heat storage performance and temperature resistance effect, which enlarges the time of the heating element in reaching its peak temperature by five times. Therefore, the CPCM has enormous potential in thermal management of electronic products.

Advances in High-Temperature Molten Salt-Based Carbon Nanofluid Research

Molten salt is an excellent medium for heat transfer and storage. The unique microstructure of carbon nanomaterials leads to good mechanical stability, low density, high thermal conductivity, and high strength, etc. The addition of carbon nanomaterials to molten salt to form molten salt nanofluid can remarkably enhance the specific heat capacity and thermal conductivity of molten salt and reduce the molten salt viscosity, which is of great importance to increase the heat storage density and reduce the heat storage cost. Nevertheless, some challenges remain in the study of such nanofluids. The main challenge is the dispersion stability of carbon nanomaterials. Therefore, to improve research on carbon nanofluids, this paper summarizes the progress of carbon-based molten salt nanofluid research worldwide including the preparation methods of molten salt nanofluids, the improvement of heat transfer performance, and the improvement of heat storage performance. The effects of carbon nanoparticle concentration, size, and type on the heat transfer and storage performance of molten salt are derived, and the effects of nanoparticle shape on the heat transfer performance of molten salt are analyzed while more promising preparation methods for carbon-based molten salt nanofluids are proposed. In addition, the future problems that need to be solved for high-temperature molten salt-based carbon nanofluids are briefly discussed.

Optimization design and performance investigation on the cascaded packed-bed thermal energy storage system with spherical capsules

Most of the previous researches on the cascaded packed-bed latent heat storage (CPTES) system are the thermal performance optimization based on numerical calculation. Experimental studies are few and mainly focus on single design parameter at low-temperature conditions. Lack of the detailed temperature - flow field experimental data and optimization scheme for the CPTES system. In this paper, an optimized two-layered filling structure of packed-bed heat storage system (OT-PTES) was proposed, which considers melting temperature of phase change material (PCM), capsule diameter, and filling volume ratio. The heat transfer process of PCM capsule and heat transfer fluid (HTF) during charging/discharging process were studied in detail by experiments. Under consistent working conditions, the average charging/discharging rate, total heat capacity, overall efficiency, and exergy efficiency was evaluated. And the influences of HTF inlet flow and the volume filling ratio of two-layered on thermal performance were analyzed. Finally, the concentric diffusion model was used to simulate the system to further optimize its hierarchical structure. The results are concluded as follows: (1) The temperature difference between PCM capsule and HTF at the interface changes continuously, and there is also an obvious temperature gradient in the radial direction of HTF, which improves the heat transfer efficiency. (2) Through experiments, the packed-bed with single large/small size PCM capsules are compared with the OT-PTES system. The overall efficiency of the latter is 74.2%, increased by 3.38% and 8.28%, and the exergy efficiency is 62.7%, increased by 7.5% and 52%. It is proved that the OT-PTES system has better charging/discharging performance. (3) When the volume filling rate = 1/2, the system has the best thermal performance (75.04%) and exergy efficiency (67.1%). (4) The numerical simulation results show that the overall performance of the packed-bed is optimal when the capsule size composition is 20–30 mm and the temperature difference of PCMs melting point is 60 ℃. In summary, OT-PTES is an optimized system with better heat storage performance. This study can provide experimental data support for the optimal design of the PLTES system and useful guidance for industrial applications.

Comparative study of novel backfill coupled heat exchangers using different waste materials in underground stopes

Underground mines in China are rich in geothermal resources. Based on backfill mining technology, the collaborative development of deep mineral resources and geothermal resources can be realized. The key of this approach is to form artificial thermal reservoirs by heat storage backfill body and to extract geothermal energy as much as possible through the built-in pipe. It is important to investigate the backfill material and system parameter design to improve the heat storage and release performance of backfill body and enhance the extraction efficiency of geothermal energy in mine. In this paper, experimental and simulation studies of backfill coupled heat exchanger system with different backfill materials are carried out to make a comparative study. The backfill materials involved include traditional backfill material, natural flake graphite backfill material and paraffin RT28 backfill material. After comparing the heat storage and heat release behavior, liquid fraction variation and efficiency of different systems, the natural flake graphite backfill body which has better engineering value is selected to further conduct experiments to study the influence of surrounding rock temperature, initial temperature of backfill body and inlet water temperature on the thermal performance of the system. The results show that with the increase of surrounding rock temperature, initial temperature of backfill body, or the decrease of inlet water temperature, the total heat storage, heat release and energy utilization coefficient of the system all increase. When the initial temperature of backfill is 26 °C, surrounding rock temperature is 45 °C, inlet velocity and temperature are respectively 0.7 m/s and 18 °C, the energy utilization coefficient of the system is the highest, which is 81.4%. The research results are helpful to the design of heat storage backfill body and the improvement of thermal performance of the system.

Heat storage and conductive properties of the polypyrrole aerogel-based new shape-stabilized phase change composite

The development of materials or devices for the storage of sustainable thermal energy is of great significance in alleviating the energy crisis. In this paper, polypyrrole (PPy) aerogels was prepared through the induction of ionic surfactant-oleic acid. Then, it was taken as the carrier material of paraffin to form a new shape-stabilized phase change material(PCM). The morphology, functional groups and pore structure of the samples were measured by SEM, FTIR and BET, respectively. The heat storage and thermal cycling performance were characterized by DSC. The light thermal properties were recorded through a multi-channel temperature recorder under a simulated light source, and the conductive properties were tested using a resistivity tester. The relationship between the adsorption rate to paraffin and the molar ratio of different pyrroles to surfactants was explored. The addition of oleic acid gave PPy aerogel the best adsorption rate to paraffin. When the molar ratio of pyrrole monomer to oleic acid was 7:1, the maximum adsorption rate of PPy aerogel was 59.81 %, which was 117.39 % of the adsorption rate of polypyrrole aerogel without surfactant. And when the mass fraction of paraffin was 55 %, the resistivity of PPy aerogel shape-stabilized PCM was about 40 Ω·cm which met the requirements of resistivity of conductive materials. The prepared shape-stabilized PCM has the application prospect in the field of energy-saving and antistatic, and achieving clean production.