Haowei Hu a School of Environment and Energy Engineering, Anhui Jianzhu The effects of applying a phase-change energy storage wall in office buildings in hot summer and cold winter climate zones were analyzed by comparing several factors based on numerical calculations, specifically focusing on the internal and external wall temperature
Thermal energy storage (TES) is of great importance in solving the mismatch between energy production and consumption. In this regard, choosing type of Phase Change
Domanski and Fellah [25] established a mathematical model of the heat storage and release process of a 2-stage phase change heat storage device and discussed the effect of phase change temperature on the temperature distribution and unit energy storage rate of PCMs by numerical simulation based on the second law of thermodynamics. The results show that
The organization of the article is as follows: Types of Cooling Techniques, PCM Working Mechanism, and PCM Application is elaborated in Sect. 2 followed by a summary of phase change material, types of phase change material, and incorporation technique analysis in Sect. 2.The experimental analysis and software simulation of PCM composites used in
Although phase change heat storage technology has the advantages that these sensible heat storage and thermochemical heat storage do not have but is limited by the low thermal conductivity of phase change materials (PCM), the temperature distribution uniformity of phase change heat storage system and transient thermal response is not ideal.There are
The global electricity demand, escalating fossil fuel prices, and serious problems about global warming have re-energized the idea of aggressively migrating to renewable energy (RE) sources, particularly over the past two decades [192].Out of all other renewable energy sources, solar energy is the most efficient energy source, as it is environmentally friendly,
One type of thermal energy storage is latent heat storage, which makes use of the large amount of enthalpy that can be stored during the phase change of a storage material, and is an
Box-type phase change energy storage thermal reservoir phase change materials have high energy storage density; the amount of heat stored in the same volume can be 5–15 times that of water, and the volume can also be 3–10 times smaller than that of ordinary water in the same thermal energy storage case [28]. Compared to the building phase change
Given the limitations of above-mentioned traditional tunnel cooling methods, our research team proposed an innovative cooling method of utilizing phase change material (PCM) plates to reduce the high ambient temperature inside the tunnel [16].This method innovatively combined the shallow geothermal energy extraction technology (i.e., utilizing
Solar energy is more efficient and abundant when compared to other renewable sources. Thus, in this context, a single slope solar desalination system with energy storage (phase change materials – PCMs) is designed and developed to analyze the Energy, Exergy, Economic and Environmental (4 – E) performance.
Compressed air energy storage (CAES) technology is one of the important technologies to address the instability of renewable energy sources. To further make full use of the system heat of compression and reduce the problem of energy grade dissipation inside the accumulator, this paper proposes a novel CAES system coupled with a graded phase change
The new technological challenge is mainly addressed to the development of high energy density thermal storage based on phase change materials (PCM) (Pereira da Cunha and Eames, 2016), in order to significantly reduce the required storage volumes and cost (Sharma et al., 2009).Generally, latent thermal energy storage - called to work in the temperature range
The primary aim of the research is to design and develop a novel phase change material thermal energy storage system for the domestic thermal energy storage application. The TES system should be able to capture the excess amount of thermal energy from the electricity grid or the
The problem of solar intermittency can be effectively addressed by solar-to-thermal energy storage using phase change materials (PCMs). Nevertheless, intricate operating scenarios and the extreme environment of PCMs restrict their uses, and the solar energy selective absorption also impedes the attainment of high photo-thermal conversion.
The management of energy consumption in the building sector is of crucial concern for modern societies. Fossil fuels'' reduced availability, along with the environmental
Thermal energy storage (TES) using phase change materials (PCMs) has received increasing attention since the last decades, due to its great potential for energy savings
The efficient conversion and storage of thermal energy are crucial for sustainable energy systems, and phase change materials (PCMs) offer a promising solution for latent heat storage (LHS). However, because these materials present problems such as phase-change leakage and low electrical and thermal conductivities, they cannot be used efficiently
The effects of applying a phase-change energy storage wall in office buildings in hot summer and cold winter climate zones were analyzed by comparing several factors based
The objectives for this report are to compare three different phase change material intended for thermal energy storage in a life cycle analysis point of view with both environmental and health
Paraffin wax and various nanoparticles (CuO, Al 2 O 3 and Fe 3 O 4) were used as matrix and heat conduction enhancer of phase change materials (PCMs), respectively.The dispersant Span 80 was added into the nanocomposite to provide stable PCMs. Based on analyses of melting and freezing curves and infrared thermal imaging tests, the phase change
Thermal energy storage technology is an effective method to improve the efficiency of energy utilization and alleviate the incoordination between energy supply and demand in time, space and intensity [5].Thermal energy can be stored in the form of sensible heat storage [6], [7], latent heat storage [8] and chemical reaction storage [9], [10].Phase change
This paper proposes to connect a thermal energy storage (TES) with phase change material (PCM) to a photovoltaic (PV) installation in order to store surplus output at the
1.3 Thermal Energy Storage Thermal energy storage (TES) is an advanced energy technology that usually involves temporary storage of high- or low temperature energy to be harvest later or at another location. Examples of when this technology are in use are solar energy for heat at night-time and ice for cooling during summer [4].
In this context, studies such as the recent investigation into ester-based phase change cold storage materials, synthesized by combining polyethylene glycol and lauric acid,
1. Introduction. Currently, cold chain transportation relies on vapour compression refrigeration cycle which is driven by diesel engines [] ch technology is expensive due to both high fuel and maintenance costs; it also emits a significant amount of CO 2 and particulate matter thus contributing to global warming.. Taking the advantage of the high energy density [] and
However, the density of material energy storage is relatively low, the volume of equipment is relatively large, the stored heat energy cannot be released at a certain temperature when releasing heat energy, and its temperature change is continuous [11, 12]; Phase change (latent heat) heat storage technology is to store and release heat by using the change of latent
The dearth of clear and potable water is one of the most critical problems experienced all over the world. There is an urge that the existing problem be addressed immediately. Pure water resources are getting depleted day by day with an increase in pollution and population. The possible way to get rid of this problem is to transform the accessible
In order to improve the application of renewable energy in cold regions and overcome the drawback of the low performance of traditional air source heat pumps (ASHP) in a low temperature environment, a novel type of dual-source heat pump system is proposed, which includes a heat pump, photovoltaic–thermal (PVT) modules, an air heat exchanger, and phase
Liang et al. [16] focused their work on determining the most appropriate radial fin arrangement to accelerate the phase change material melting process in a vertical latent heat thermal energy storage (LHTES) unit. The design parameters including the fin height and pitch were chosen to optimize the thermal behaviour of the LHTES unit.
Investigation of phase state and heat storage form of the phase change material (PCM) layer integrated into the exterior walls of the residential-apartment during heating season
Phase change materials (PCMs) are ideal carriers for clean energy conversion and storage due to their high thermal energy storage capacity and low cost. During the phase transition process, PCMs are able to store
Phase change materials (PCMs) having a large latent heat during solid-liquid phase transition are promising for thermal energy storage applications. However, the relatively
While TCS can store high amounts of energy, the materials used are often expensive, corrosive, and pose health and environmental hazards. LHS exploits the latent heat of phase change whilst the storage medium (phase change material or PCM) undergoes a phase transition (solid-solid, solid-liquid, or liquid-gas).
1 天前· This study evaluates the thermal and energy performance of building envelopes incorporating phase change materials (PCM) compared with traditional resistive thermal
This work aims to improve the efficacy of phase change material (PCM)-based shell-and-tube-type latent heat thermal energy storage (LHTES) systems utilizing differently shaped fins. The PCM-based thermal process faces hindrances due to the lesser thermal conducting property of PCM. To address this issue, the present problem is formulated by
As an advanced energy storage technology, the compressed CO2 energy storage system (CCES) has been widely studied for its advantages of high efficiency and low investment cost. However, the current literature has
Several studies have concentrated on enhancing LHTES systems by adding fins into the shell and tube PCM heat exchangers. Ajarostaghi et al. [38] carried out a detailed computational analysis on shell-and-tube PCM storage featuring fins to improve thermal efficiency.They examined the effect of the number and configuration of HTF tubes, in addition to the number and placement
Thermal energy storage (TES) is of great importance in solving the mismatch between energy production and consumption. In this regard, choosing type of Phase Change Materials (PCMs) that are widely used to control heat in latent thermal energy storage systems, plays a vital role as a means of TES efficiency. However, this field suffers from lack of a
This study reports the results of the screening process done to identify viable phase change materials (PCMs) to be integrated in applications in two different temperature ranges: 60–80 °C for mid-temperature applications and 150–250 °C for high-temperature applications. The comprehensive review involved an extensive analysis of scientific literature and commercial
Volume 2, Issue 8, 18 August 2021, 100540 Phase change materials (PCMs) having a large latent heat during solid-liquid phase transition are promising for thermal energy storage applications. However, the relatively low thermal conductivity of the majority of promising PCMs (<10 W/ (m ⋅ K)) limits the power density and overall storage efficiency.
In this regard, choosing type of Phase Change Materials (PCMs) that are widely used to control heat in latent thermal energy storage systems, plays a vital role as a means of TES efficiency. However, this field suffers from lack of a comprehensive investigation on the impact of various PCMs in terms of exergy.
In this context, phase change materials (PCMs) have emerged as key solutions for thermal energy storage and reuse, offering versatility in addressing contemporary energy challenges.
On behalf of all authors, the corresponding author states that there is no conflict of interest. Taheri, M., Pourfayaz, F., Habibi, R. et al. Exergy Analysis of Charge and Discharge Processes of Thermal Energy Storage System with Various Phase Change Materials: A Comprehensive Comparison. J. Therm.
Thermal energy storage (TES) is of great importance in solving the mismatch between energy production and consumption. In this regard, choosing type of Phase Change Materials (PCMs) that are widely used to control heat in latent thermal energy storage systems, plays a vital role as a means of TES efficiency.
By controlling the temperature of phase transition, thermal energy can be stored in or released from the PCM efficiently. Figure 1 B is a schematic of a PCM storing heat from a heat source and transferring heat to a heat sink.
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