Sodium Acetate Trihydrate Research Articles

Electrically driven nucleation for enhanced control of salt hydrate hydrogel heat release in long-term thermal storage applications

Sodium acetate trihydrate (SAT) is a well-known salt hydrate phase change material (PCM) with large energy density and a high degree of supercooling, making it suitable for long-term thermal storage. However, effectively discharging heat from the supercooled SAT remains a challenge. This study delves into optimizing the electrical nucleation process in an SAT-based PCM, beginning with the validation of electrode pre-treatment and concluding with initiation under various conditions. The research identifies the optimal voltage and electrode spacing for nucleation. The crucial role of diffusion field interactions from growing crystals at different sites is highlighted, noting that their convergence creates a complex concentration gradient profile that hampers crystallization efficiency. Additionally, an increase in electrode pairs correlates with a more uniform heat distribution. Findings revealed that through material modification and nucleation strategy optimization, the theoretical crystallization time for SAT-based PCMs can vary significantly, ranging from 44 to 252 s. This variability, offering up to a 472.73 % extension in discharge time, underscores the PCM's adaptability for customized applications, especially in fields requiring variable discharge rates, such as residential heating and electronic thermal management.

Thermal performance of a novel composite phase change material for solar-assisted air source heat pump packed bed thermal energy storage application

The thermal properties of the heat storage medium in the solar-assisted air source heat pump (SAASHP) systems must be aligned with the system’s heat generation temperature while satisfying the heat demand. In this study, a novel composite phase change material (CPCM) for efficient heat storage in SAASHP systems was developed. Our investigation revealed that the incorporation of 8 wt% KNO3, 1.5 wt% thickener, and 1.0 wt% Al2O3 nanoparticles into sodium acetate trihydrate resulted in the manifestation of desirable properties suitable for SAASHP systems. The compound exhibited a suitable melting point of 48.66 °C, high latent heat of 235.97 kJ/kg, low supercooling degree of 2.25 °C, and good thermal conductivity of 0.905 W/(m·K). Furthermore, the novel CPCM demonstrated exceptional thermal stability, with only an 8.64 % loss of latent heat after undergoing 200 cycles, while maintaining a supercooling degree within a range of 6 °C for each cycle. Moreover, molecular dynamics simulation results further indicated that the presence of KNO3 weakened the interaction between CH3COONa molecules and water molecules, leading to a reduction of the melting point. Additionally, numerical analysis revealed that the total heat storage capacity and exergy storage capacity of the packed bed thermal energy storage (PBTES) system filled with the novel CPCM are 358.8 MJ and 25.1 MJ, respectively. With an increase in the heating power of the SAASHP system from 10 kW to 30 kW, the cycle heat storage time of the PBTES system can decrease by 38.8 %, while an increase in the flow rate from 2 m3/h to 6 m3/h can reduce the time by 26.3 %. These findings have significant implications for the selection and composition design of thermal storage materials in SAASHP systems.

Optimizing thermal performance of sodium acetate trihydrate phase-change-materials through synergistic effects of binary graphene nanoadditives for prolonged hot beverage maintenance

Sodium acetate trihydrate (SAT) is a promising candidate for thermal energy storage due to its high latent enthalpy and economic viability. However, limitations like supercooling and low thermal conductivity hinder its practical application. Herein, these challenges are addressed by developing a novel SAT-based composite phase change material (PCM) through incorporation of binary nanoadditives—graphene oxide (GO) and graphene nanoplatelets (GNP) to mitigate supercooling and enhance thermal conductivity, respectively. Notably, the optimal composite, SAT/0.25GO/0.75GNP, identified through systematic formulation optimization, retains a high latent enthalpy (281.09 J/g), comparable to pure SAT (290.47 J/g), with improved thermal conductivity and substantially reduced supercooling and phase separation issues. The combined effects of GO and GNP, likely due to noncovalent interactions, enhanced heat transfer in the composite, which was further tested in a vacuum mug. The SAT/0.25GO/0.75GNP composite achieved ideal drinking temperatures (60–50 °C) for hot water in just 4 minutes–18 times faster than the PCM-free control mug and 6 times faster than the Mug containing pure SAT. While the PCM-free mug maintains hot water within this interval for only 49 min, MugPCM, encapsulating pure SAT, retains heat for 76 min, and that with SAT/0.25GO/0.75GNP keeps remarkably hot for as long as 100 min.

Extraction and characterisation of gelatine from yellowfin tuna skin pretreated with a eutectic solvent

The accumulation and management of waste generated during the processing of seafood products is one of the major current challenges in the fishery industry. Among these residues, fish skin stands out for its high collagen content, from which high-quality gelatine can be obtained. However, conventional methods for gelatine extraction are time-consuming and complex processes that involve the use of strong acidic and alkaline solutions, leading to serious environmental concerns. This research studied the use of a eutectic solvent, formed by two safe and environmentally friendly compounds such as sodium acetate trihydrate and urea, to pretreat the skin of yellowfin tuna before the extraction of gelatine. Two different times of pretreatment were tested, and the subsequent extraction was carried out in warm water, resulting in much higher yields of gelatine (0.3 g/g wet fish skin) than previous studies. Additionally, using FT-IR analysis and amino acid profiling, it was observed that the pretreatment time did not significantly affect the structure or composition of the gelatine. However, some variation was found in its molecular weight distribution and therefore in its rheological properties: with an increase in the pretreatment time, both the molecular weight and the storage modulus of the gel also increased, as well as the gelation and melting temperatures. This contribution offers a simplified process that reduces environmental impact and provides the opportunity to tailor the final product.

Protein expression, purification, crystallization and crystallographic studies of BPSL0741 from Burkholderia pseudomallei.

Burkholderia pseudomallei is the causative agent of the lethal disease melioidosis. This bacterium infects animals and humans and is increasingly resistant to multiple antibiotics. Recently, genes associated with survival of the bacterium in the infected host have been identified. One of these genes, bpsl0741, is annotated as a hypothetical protein of 185 amino acids. Here, recombinant BPSL0741 (rBPSL0741) protein was expressed, purified, verified by mass spectrometry, crystallized and analyzed by X-ray diffraction. rBPSL0741 was crystallized by vapor diffusion using a reservoir solution consisting of 0.2 M ammonium acetate, 0.1 M sodium acetate trihydrate pH 4.6, 30% PEG 4000. The crystals diffracted to 2.1 Å resolution using an in-house X-ray diffractometer and belonged to an orthorhombic space group, with unit-cell parameters a = 62.92, b = 64.57, c=89.16 Å. The Matthews coefficient (VM) was calculated to be 2.18 Å3 Da-1, suggesting the presence of two molecules per asymmetric unit and an estimated solvent content of 43.5%. The crystal was deemed to be suitable for further structural studies, which are currently ongoing.

Improvement of the Subcooling Problem of Sodium Acetate Trihydrate by a Combination of Stirring or Internal Electric Field and Nucleating Agent

Improvement of the Subcooling Problem of Sodium Acetate Trihydrate by a Combination of Stirring or Internal Electric Field and Nucleating Agent

Experimental investigation on heating performance of long- and short-term PCM storage in Chinese solar greenhouse

Phase change material (PCM) board on north wall of the greenhouses can absorb and store solar heat during the daytime, then releases it at night to provide the thermal environment for crop growth. However, its capability to regulate the greenhouse temperatures in severe winter is limited, necessitating an additional heat source. The heat gap within the greenhouse can be replenished flexibly and promptly by controllable triggering of supercooled salt hydrate for long-term heat storage. This study proposed a synergetic energy storage and release system, combining the short-term storage and passive release of the PCM wallboard with the long-term storage and active triggering solidification of the supercooled salt hydrate in separate storage unit. The temperature regulation effect of this synergetic system was experimentally investigated in a test Chinese greenhouse. The results showed that the combination of the PCM north wallboard with the supercooled salt hydrate storage unit reduced the daytime average temperature by 2.0 °C ~ 3.8 °C compared with the control greenhouse. In sunny days, the PCM north wallboard could meet the nighttime heat demand of the greenhouse with the average temperature rise of 5.2 °C ~ 6.7 °C. In severe weather, by triggering supercooled sodium acetate trihydrate (SAT, CH3COONa·3H2O, Tm = 58.0 °C) at late night, the temperature rose by 5.3 °C in 1 h, effectively heating for 5 h. While supercooled sodium thiosulfate pentahydrate (STP, Na2S2O3·5H2O, Tm = 48.5 °C) was triggered, the temperature rose by 3.3 °C in 1 h, effectively heating for 4 h. Furthermore, the synergetic system was still effective for greenhouses under ventilation and irrigation conditions during the day. This study provides guidance for the development of synergetic PCM systems with long- and short-term solar thermal storage and release for greenhouse heating.

Adjustable temperature and high thermal conductivity composite phase change material based on sodium acetate trihydrate–alanine/expanded graphite for thermal management of electronic devices

Phase change energy storage technology using phase change materials (PCMs) is a viable solution to effectively address the heat dissipation problems of electronic devices. Herein, we proposed to prepare a modified PCM using CH3COONa·3H2O (SAT) as main PCM, 9 wt% DL-Alanine (DL) as temperature modifier, and 2 wt% Na2HPO4·12H2O as nucleating agent. Calculations using density functional theory method confirmed that the adjustment of DL on phase change temperature of SAT was originated from the hydrogen bond between them. Then, the modified PCM was loaded into 14 wt% expanded graphite (EG) to obtain a composite PCM with a suitable phase change temperature of 52.9 °C, phase change enthalpy of 227.4 J/g as well as supercooling degree of 6.6 °C, and the thermal conductivity of the composite PCM was as high as 11.52 W·m−1·K−1. SEM and pore structure analyses showed that the modified PCM was successfully loaded into the pore structure of EG, and their combination was verified by XRD and FT-IR as a physical interaction. After 200 heating–cooling cycles, the phase change temperature and enthalpy of the composite PCM was basically unchanged along with consistent crystal structure and chemical composition, showing an excellent thermal reliability. A comparative analysis applied in a testing system showed that with loading of the composite PCM temperature control module, the critical time of the electronic chip was extended by 4670 s and the thermal equilibrium temperature was decreased by 20.4 °C, presenting a good thermal management performance. Therefore, the prepared composite PCM had great potential for application in thermal management of electronic devices.

Experimental study on supercooling performance optimization of sodium acetate trihydrate phase change energy storage materials

In response to the pressing demands for sustainable energy, the development of efficient energy storage materials and technologies has emerged as a focal point in contemporary research. Sodium acetate trihydrate (CH3COONa·3H2O, SAT), recognized for its potential as a mid-to-low temperature phase change material (PCM) in energy storage systems, encounters significant limitations due to its substantial supercooling effect and inferior thermal conductivity. Traditional approaches to enhance SAT's thermal performance often involve costly additives, which hinder their adoption on an industrial scale. This study introduces SAT as a base compound, and through a fusion blending method, binary eutectic hydrate salt composites (CPCMs) are synthesized with either sodium sulfate decahydrate (Na2SO4·10H2O, SSD) or disodium hydrogen phosphate dodecahydrate (Na2HPO4·12H2O, DHPD) in varying ratios. The results demonstrate that the prepared eutectic hydrates effectively reduce the supercooling degree of pure SAT from above 35 °C to below 10 °C, with the SAT/SSD-5/5 composition exhibiting the lowest supercooling at 3.17 °C. Notably, these eutectic blends possess appreciable latent heat capacities, with SAT/SSD-9/1 delivering 196.18 J/g, and exhibit improved thermal conductivity, as seen in SAT/SSD-3/7 with a coefficient of 0.8925 W/(m·K). Furthermore, the SAT-based eutectic hydrates are devoid of expensive additives, facile to manufacture, and applicable over a broad temperature range (20–60 °C), making them highly suitable for large-scale commercial applications.

Thermal Properties of Disodium Hydrogen Phosphate Dodecahydrate–Coated Metal Foam/Sodium Acetate Trihydrate Composite as Phase Change Material

Abstract Salt hydrates, like the sodium acetate trihydrate (SAT), possess a remarkable ability to store copious amounts of thermal energy, thanks to their ingenious utilization of a high latent heat of fusion. This unique property makes them a compelling choice for various energy storage applications. In this study, aluminum and copper foams with pore sizes of 40, 80, and 110 pores per inch (PPI) coated with disodium hydrogen phosphate dodecahydrate were prepared, and their effects on the SAT solidification temperature, latent heat of fusion, and thermal conductivity were investigated. The samples' thermal conductivity was measured using the guarded heat flow method. Thermal properties, including latent heat of fusion and supercooling were measured using the T-History method. The results showed that the metal foam matrix is an effective method of enhancing the thermal conductivity of SAT while occupying a small volume of the composite. The copper foam with a PPI of 80 was able to increase the effective thermal conductivity to 2.62 W/(m⋅K), an increase of 388.15% compared to pure SAT while occupying approximately 6.5% of the composite volume. The T-History results showed a solidification temperature of 57.52 °C along with a super cooling of 3.28 °C for the same sample set. Furthermore, it was also found that copper samples significantly outperformed the aluminum ones, despite the higher porosity.

Double-network aerogel-based eutectic composite phase change materials for efficient solar energy storage and building thermal management

Phase change materials (PCMs) have shown great promise in solar energy storage and thermal management of buildings. Nevertheless, the solid-liquid PCMs currently used in these applications face multiple challenges that need to be addressed, such as inadequate solar absorption capacity, leakage issues, and low phase change enthalpy. In this research, urea and sodium acetate trihydrate (SAT) were employed as the main PCMs, while disodium hydrogen phosphate dodecahydrate (DHPD) served as the nucleating agent. Additionally, we used polyvinyl alcohol/silica (PVA/SiO2) aerogel as a porous support structure. Carbon nanotubes (CNTs) were also introduced as photothermal conversion materials to fabricate a photothermal conversion-type double-network aerogel-based eutectic composite PCM (ECPCM). The prepared ECPCM exhibited excellent shape stability, high mechanical strength, and outstanding photothermal conversion performance. Moreover, the ECPCM demonstrated good flame retardancy, low supercooling, and the absence of phase separation issues. Furthermore, the ECPCM demonstrated efficient solar energy storage capacity and outstanding performance in building thermal management. This study offers a new perspective on the advancement of ECPCMs in solar energy storage and thermal management of buildings.

Latent heat absorption of alkali metal hydrates enables delayed ignition and improved flame retardancy of epoxy resin

In this work, alkali metal hydrates, barium hydroxide octahydrate (BHO) and sodium acetate trihydrate (SAT) were added into epoxy resin (EP) to prepare a series of flame-retardant EP composites. It showed that EP samples can pass the V-0 rating of UL-94 when the amount of hydrated salt exceeds 45 wt%. When the additional amount of SAT is 50 wt%, the LOI of the EP sample increases to as high as 39% compared to 19% of pure EP. In addition, the time to ignition (TTI) of EP with 50 wt% SAT was prolonged to 157 s from 63 s of pure EP, which can provide valuable time for fire escape. The peak heat release rate (PHRR) was reduced by 63.9% compared with that of pure EP (from 1392.4 kW/m2 to 502.18 kW/m2), which indicated that phase change heat absorption plays a crucial role in reducing fire hazards of EP.

Enhancing visible light absorption of form-stable CH3COONa·3H2O composite phase change material and its application in thermoelectric power generation

The utilization of Phase Change Material (PCM) for solar heat storage represents an effective solar energy storage method. Nevertheless, this promising technology encounters several obstacles, particularly PCM leakage and dissatisfied solar absorptance. This study focuses on the development of a photothermal conversion composite PCM tailored for solar energy storage and its subsequent integration into a thermoelectric power generation system. The composite PCM was synthesized using an evaporation-impregnation method, with melamine foam (MF) serving as the adsorbent material, graphene oxide (GO) as the light-absorbing component, and sodium acetate trihydrate (SAT) as the thermal storage medium. It is shown that the MF demonstrates an exceptional adsorption capacity for SAT, whose mass fraction exceeds 99 % in the final composite. The composite PCM exhibits a remarkable melting enthalpy of 251.5 J/g, comparable to that of pure SAT. The integration of GO into MF/SAT improves the solar absorptance of the composite, elevating it from 23.3 % to 81.5 %, thereby enhancing the photothermal conversion performance. To assess the practical solar energy storage potential of the prepared PCM, a thermoelectric power generation system was designed and underwent a continuous 22-hour performance test in a real outdoor enviornment. The results reveal that the system is able to maintain voltage generation for about 10 hours after the sun disappears. This proves the superior photothermal conversion and heat storage capabilities of the prepared materials. This research offers a viable approach for direct solar energy storage and conversion to electricity, advancing renewable energy technologies.

Performance evaluation and thermal stabilization of photovoltaic panels using phase-change materials

Photovoltaic (PV) is a widely used technology that generates power from solar energy. The solar radiations reaching PV panels are converted into electrical energy and heat, however the panel temperature increases, leading to a decrease in performance. This issue can be resolved using cooling methods. Phase-change materials (PCMs) are utilized in passive cooling methods, which do not consume energy, store the heat from the panel and cool them. In this study, sodium acetate trihydrate (PCM-1), palmitic acid (PCM-2), and a eutectic mixture of stearic acid and palmitic acid (PCM-3) were placed in a container and integrated into monocrystalline and polycrystalline PV panels to examine the impact of PCM on various performance metrics including power output, energy efficiency, and PV panel surface temperature. The experiments are carried out in Izmir, which has a hot climate condition in summer months. The solar irradiance of Izmir city and standard test condition of 1000 W/m2 were applied to the panels in the experiments. Results showed that the maximum temperature decreased, compared to the reference panel (without PCM), by 22.84 % and 14.4 %, respectively, when using PCM-1 and eutectic mixture in the monocrystal panel at 1000 W/m2 in August. The power and efficiency increased by 24.97 % and 24.95 %, respectively, for the polycrystalline panel in July. These results indicate that PCMs enhanced the cooling and increased the performance of the PV panels with high surface temperatures due to intense solar irradiation.

Synthesis, Spectral Analysis, DFT and Molecular docking studies of Some Novel Oxime Derivatives

A series of novel Di‑tert‑butyl(E)-4‑hydroxy-6-(hydroxyimino)-4-methyl-2-arylcyclohexane-1,3-dicarboxylate derivatives were synthesized in two steps with excellent yields. In the First step, tert‑butylacetoacetate and substituted benzaldehyde were directly condensed using methylamine catalyst in ethanol as a solvent to create substituted 1,3-bis(tert‑butoxycarbonyl)-cyclohexanone. A second stage involved synthesizing BHMAC (Ar = pH and Ar = p-OCH3C6H4) by treating the respective ketones in an ethanol medium with hydroxylamine hydrochloride and sodium acetate trihydrate. NMR, IR, and mass spectroscopy were used to confirm the oxime derivatives. Density functional theory calculations at the DFT/B3LYP level using 6–31G++ (d, p) have been performed to reproduce the structure and geometry in order to understand the electrical behavior of synthesized compounds. Using bovine serum albumin, a protein denaturation test is used to assess anti-inflammatory efficacy. BHMAC demonstrates conventional pharmacological molecules in its notable anti-inflammatory action and has effects that are dependent on concentration. Utilizing the phosphomolybdenum technique, the total antioxidant activity of the 2,4-bis(tert‑butoxycarbonyl)-cyclohexanone oxime (2 a and 2 b) was assessed standard Vitamin C medications .The results revealed that 2 a & 2 b possess significant antioxidant activity Molecular docking experiments indicate that the chemical may interact with anti-inflammatory and antioxidant causing enzymes. Strong binding energies and inhibition constants with cyclooxygenase (PDB: 1PGG) are demonstrated by BHMAC, suggesting that it is a suitable material for investigations pertaining to anti-inflammatory. BHMAC's remarkable anti-inflammatory and antioxidant properties, together with its synthesis and characterization, highlight its potential as a viable candidate for more biomedical research and therapeutic development.

Numerical simulation of a combined thermochemical-latent energy storage system based on paired metal hydrides and phase change material

The main goal of this paper is to assess the operating performance of a thermal energy storage system that combines latent and thermochemical heat storage for their utilization in industrial waste heat recovery as well as in solar power plants. Thermal energy is stored and released through endothermic desorption and exothermic absorption processes, thereby cycling hydrogen between two paired metal hydrides (MHs). The thermal performance of the dynamically coupled Mg2Fe/LaNi5 pair, which has never been investigated before, is presented in this study. Sodium acetate trihydrate is used as a PCM for the LaNi5-tank thermal management. Moreover, during the heat charging stage, the Mg2Fe-tank was subjected to a typical solar heat flux. A mathematical model has been established and utilized to simulate how the storage system would operate in practical situations. The impacts of the operating conditions, which are the efficiency of the supplied heat system, the HTF temperature, the heat transfer coefficient, and the initial temperature of the MH beds, on the storage system's performance are studied and discussed in detail. The findings from this investigation revealed that the pairing of Mg2Fe with LaNi5 at suitable operating conditions enabled the storage system to achieve a specific energy storage capacity of 2 MJ/kg of Mg2Fe and an efficiency of 87.1 %. The results of this study reveal the excellent performance of a potential and viable metal hydride pair (Mg2Fe/LaNi5) for its usage in thermal energy storage systems.

Low-temperature synthesis in the dittmarite–sodium acetate trihydrate system: electrochemical activity of M3+/M2+ redox couples in AMPO4 (A = Na, Li; M = Mn, Mn/Fe)

Phase-pure NaMPO4 (M = Mn, Mn/Fe; isotypic to triphylite) and Li(Mn/Fe)PO4 were isolated as a result of the low- temperature reaction between NH4MPO4·H2O (M = Mn, Mn/Fe) and AcONa·3H2O or AcOLi, respectively. Electrochemical tests in half-cells revealed that Na-based compounds exhibit poor electrochemical activity vs. metallic Na, while the similarly synthesized Li counterpart demonstrates decent cycling in Na cells. The synthetic features, crystal structures and properties of related members of the olivine family are discussed.

Magnetically triggered heat release from hydrate salt composite microchannels for low-temperature battery thermal management

While active thermal managements for Li-ion battery (LIB) consume a large amount of energy, passive one based on phase change material (PCM) fails to release thermal energy for heating as required. Thus, intelligent heat storage and release is urgently needed for utilizing PCM as passive thermal management. Herein, porous boron nitride/polyvinyl alcohol (BN/PVA) skeleton with highly ordered microchannels was fabricated to impregnate hydrate salt sodium acetate trihydrate (SAT) solution forming shape-stable SAT@BN/PVA composite with efficient thermal energy storage performance. Disturbance from magnetic trigger in the hydrate salt composite microchannels promotes nucleation and solidification, thus initiates heat release as required and remotely. Meanwhile, anisotropic heat transfer from the highly ordered microchannels can effectively enhance heat release velocity and efficiency. The magnetic triggered process is studied theoretically and experimentally, and optimized to release heat in 25 s with efficiency up to 99%. Consequently, heat release can improve temperature by 10 °C when battery pack stops working at −20 °C and enhance discharge capacity by 75% during cold-start. This research provides a new method for intelligent thermal management of LIB working in cold environment.

Preparation and Photothermal Properties of Accordion‐Like MXene/Sodium Acetate Trihydrate Composite Phase Change Materials

Phase change materials (PCMs) are promising options for thermal energy storage. Combining sodium acetate trihydrate (SAT) with MXene, the composite phase change materials (CPCMs) have been prepared. The surface morphology, thermal storage performance, and solar energy photothermal conversion efficiency of the CPCMs with various MXene contents are analyzed. According to the microstructure morphology analysis, MXene is accordion‐shaped, and tightly associated with SAT. Differential scanning calorimetry measurement results show that CPCMs possess high latent heat and suitable phase change temperature for the applications of solar heat storage. The absorption wavelength range of SAT/MXene is extended from 200–258 nm to 200–497.7 nm with a photothermal conversion efficiency of 81.3%. SAT/MXene‐2%, SAT/MXene‐8%, and SAT/MXene‐14% have thermal conductivities of 0.84, 1.14, and 1.47 W/ (m · K), respectively, which are higher by 44.9%, 96.6%, and 153.4% than 0.59 W/ (m · K) of pure SAT. CPCMs exhibit excellent thermal stability and reliable cycling stability after 50 cycles, which show that MXene can prevent leakage during the solid‐liquid phase transition process. The expansion of PCM's practical applicability and MXene/SAT composites with good photothermal characteristics create a theoretical foundation for the effective use of renewable energy sources.

Numerical simulation and optimization of compact latent heat exchanger with micro-channel plate in shape-stabilized composite phase change material

To enable the rapid provision of domestic hot water, this study presents the independent design of a plate heat exchanger featuring a large heat exchange area and a compact structure. Utilizing a sandwich structure, the thermal storage unit integrates two shaped composite phase change materials (CPCM), namely sodium acetate trihydrate (SAT)/expanded graphite (EG) blocks of identical thickness — in conjunction with a micro-channel heat exchange plate. Multiple thermal storage units are stacked to create the heat exchanger. Experimental validation of the heat transfer performance of this thermal energy storage heat exchanger is conducted, accompanied by the establishment of a heat transfer model elucidating the interaction between the phase change material (PCM) and the fluid. The investigation explores the impact of varying thicknesses of shape-stabilized CPCM, thermo-physical parameters of CPCM, and flow rates on enhancing the thermal efficiency of the thermal energy storage heat exchanger. Results indicate a competitive relationship between the phase change enthalpy and thermal conductivity of CPCM under constant density. Increasing the mass fraction of SAT effectively boosts its heat storage density. However, this improvement is counterbalanced by a reduction in CPCM's thermal conductivity, resulting in diminished heat transfer rates within the material and reduced efficiency in transferring heat between the material and the fluid. Optimal performance is achieved when the mass fraction of sodium acetate trihydrate is 80 wt% and the CPCM thickness is 20 mm. At these parameters, the thermal energy storage heat exchanger exhibits the highest heat transfer efficiency. Furthermore, the heat exchanger is capable of producing 197.86 kg of hot water in 1365 s at an inlet flow rate of 300 L/h, achieving an impressive discharging efficiency of 82.73 %. These findings underscore the feasibility of employing the mini-channel plate thermal energy storage heat exchanger for the rapid preparation of domestic hot water.