EFFICIENCY ASSESSMENT OF GLYCOL COLD THERMAL ENERGY STORAGE
The effect of varying environment temperature on the efficiency of glycol cold thermal energy storage (CTES) is investigated. Several thermodynamic system parameters are analyzed, such as change in storage temperature, storage heat load, energy and exergy efficiencies and exergy destruction. Glycol CTES is treated as a potential application of
Deep eutectic solvents: viable sustainable electrolytes for
Deep eutectic solvents (DES) have emerged as a promising avenue for energy storage applications. These unique solvents, derived from readily available and biodegradable components, offer advantages such as low cost, high thermal stability, and excellent compatibility with a wide range of electrode materials.
Heat transfer performance and transport properties of ZnO–ethylene glycol and ZnO–ethylene glycol
Experiments were carried out on preparation and characterization of ZnO–ethylene glycol (EG) and ZnO–ethylene glycol–water nanofluids and analysis of their performance as coolants. Favorable interactions between ZnO nanoparticles and ethylene glycol molecules ensured superior transport properties of ZnO–EG nanofluids.
Selective production of ethylene glycol at high rate via cascade
Now a cascade electrochemical heterogeneous system can produce ethylene glycol from ethylene or from CO2 under ambient conditions using
Development of sodium acetate trihydrate-ethylene glycol
The development of such heating sources will rely on the materials having high thermal energy storage density and suitable heat releasing temperature with a
Solvent-free synthesis of cellulose nanocrystal-graft-poly (ethylene glycol
Solid–solid phase change materials (SSPCMs) have drawn substantial interest due to their excellent thermal energy storage performances and shape stability. Herein, a series of solid–solid phase change nanoparticles were successfully synthesized by grafting poly (ethylene glycol) (PEG, phase change working substance) onto cellulose
Investigation of the effects of thermal, oxidative and irradiation
The present work reports the effects of multiple treatments on the behaviour of poly-ethylene glycol with an average molecular weight of 2000 g/mol, to be used as PCM in thermal energy storage systems. The objective is to examine the performance of PEG 2000 under different stimulus, which simulates possible operating
Investigation of the effects of thermal, oxidative and irradiation treatments on the behaviour of poly-ethylene glycol
Investigation of the effects of thermal, oxidative and irradiation treatments on the behaviour of poly-ethylene glycol as a phase change material in thermal energy storage systems Z. Ajji a, H. Jouhara b, * a Polymer Technology Division, Radiation Technology Department, AECS, P. O. Box 6091, Damascus, Syria
Polyester‐based phase change materials with flexible poly(ethylene glycol) chains for thermal energy storage
To solve this vital problem, people are developing renewable energy such as many types of thermal energy to provide clean and sustainable resources for the entire society [4,5]. Phase change
How Does A Glycol Cooling System Work?
The first step in setting up a glycol cooling system is to establish a glycol water chiller in a closed loop system. A glycol water chiller is a type of refrigeration system that cools a tub of glycol to
Recent progress in alkaline direct ethylene glycol fuel cells for sustainable energy production
As such, ethylene glycol can be an energy carrier in an energy-storage system via interconversion between ethylene glycol and oxalic acid (oxalate). Takeguchi et al. [87] proposed the concept of carbon-neutral energy-cycle system using ethylene glycol as energy carrier, as illustrated in Fig. 6 d–f.
Cycling Stability of Poly(ethylene glycol) of Six Molecular Weights
Poly(ethylene glycol), H–(O–CH 2 –CH 2) thermal conditions is very crucial to prevent performance degradation during the real working conditions of the thermal energy storage system. Thermophysical properties are also of importance during TES choice and design. These properties were also measured for PEG.
Highly improved aqueous Zn‖LiMn2O4 hybrid-ion batteries using poly(ethylene glycol
Aqueous Zn metal batteries are a promising candidate for low-cost, safe, and sustainable energy storage systems. Nonetheless, the practical application of such batteries is still impeded by the inferior Zn anode performance and instability of the cathode. Herein, we investigate the performance of an aqueous
Solvent-free synthesis of cellulose nanocrystal-graft-poly (ethylene
Solid–solid phase change materials (SSPCMs) have drawn substantial interest due to their excellent thermal energy storage performances and shape stability. Herein, a series of solid–solid phase change nanoparticles were successfully synthesized by grafting poly (ethylene glycol) (PEG, phase change working substance) onto cellulose
Poly(ethylene glycol)/acrylic polymer blends for latent
Latent heat thermal energy storage (LHTES) properties of the blends were evaluated by using the differential scanning calorimetry (DSC) technique. In the form-stable blends, PEG acted like phase
Preparation and thermal properties of polyethylene glycol
Phase Change Material (PCM) thermal energy storage systems have emerged as a promising solution for efficient thermal energy storage from low to very high-temperature applications. This paper presents an investigation into the utilization of medium temperature range PCM-based systems for domestic hot water application, focusing on
Ethylene glycol
The ethylene glycol either gains energy from the source (lake, ocean, water well) or dissipates heat to the sink, depending on whether the system is being used for heating or cooling. Pure ethylene glycol has a specific heat capacity about one half that of water.
Phase change characteristics of ethylene glycol solution-based
Nanofluids, particularly water-based nanofluids, have been extensively studied as liquid–solid phase change materials (PCMs) for thermal energy storage
Poly(ethylene glycol)/acrylic polymer blends for latent heat
Among the PCMs investigated, polyethylene glycol (PEG) is one of the prospective candidates in this regard as it exhibits relatively high latent heat-storage capacity, tunable solid-liquid phase
Ethylene glycol nanofluids dispersed with monolayer graphene
Ethylene glycol (EG) nanofluids have been intensively explored as one of the most promising solid–liquid phase change materials for subzero cold thermal energy storage
Electrically conductive hydrogels for flexible energy storage systems
This review summarized the material design and synthetic approach of ECHs, demonstrating the advances of percolation theory in ECH materials, followed by
Recent progress in alkaline direct ethylene glycol fuel cells for sustainable energy
that in the alkaline DEFC. Also, ethylene glycol is much less volatile due to the high boiling point (19 o C) [15]. 8 In additionethylene glycol, has the potential to be an energy carrier in n energya -storage system, since ethylene glycol can be synthesized via an
Non-eutectic Phase Change Materials for Cold Thermal Energy Storage
Phase change materials provide high-density thermal energy storage and a wide range of temperatures are required to meet different storage applications for cascaded thermal storage systems. Thus, non-eutectic phase change materials, namely aqueous ethylene glycol and ethanol solutions, are investigated in this paper for
Investigation of the effects of thermal, oxidative and irradiation treatments on the behaviour of poly-ethylene glycol
PEG (poly-ethylene glyco1) with an average molecular weight of 2000 g/mol has been investigated as a phase change material for thermal energy storage applications. PEG sets
A comprehensive review on sub-zero temperature cold thermal energy storage materials, technologies, and applications: State
The design of these types of thermal energy storage (TES) systems is mostly similar to the ones used for higher temperature ranges. Ethylene glycol/Sodium propionate/H 2 O (1:1:8 wt%) Multicomponent organic mixture −15 127.8 [7] Corn-oil ester/Tap −15
Ethylene glycol as an efficient and reversible liquid-organic
efficient and reversible liquid to liquid organic hydrogen carrier system based on inexpensive, readily available and renewable ethylene glycol. This hydrogen storage
Heat transfer performance and transport properties of ZnO–ethylene
Thermal management and energy storage systems are thrust areas of research in fields such as automobile/industrial cooling, Viscosity of ethylene glycol–water mixture, the base fluid showed higher temperature dependency compared to nanofluids, which might be due to the higher magnitude of intermolecular forces that
Carbon fibre-reinforced poly(ethylene glycol) diglycidylether based multifunctional structural supercapacitor composites for electrical energy
Herein, with a new high-strength solid electrolyte, we prepare a practical high-performance load-bearing/energy storage integrated electrochemical capacitors with excellent mechanical strength
Battery thermal management systems: Recent progress and
Therefore, a proper battery thermal management system (BTMS) is necessary to create an efficient and robust system that is adversely affected by internal and ambient temperature variations. The BTMSs are also needed to enhance the battery''s safety, cycle life, and performance while reducing the associated cost.
Polyester‐based phase change materials with flexible poly(ethylene
Due to their outstanding merits like high density of energy storage and isothermal nature in phase transition procedures [12, 13], PCMs have been employed in many fields such as solar-thermal
