How can cross-seasonal thermal storage improve solar energy utilization?
As heat storage volume increases, hot water preparation costs and heat loss per unit volume decrease. Thus, developing large-scale cross-seasonal thermal storage systems is an effective solution to improve the thermal efficiency and solar energy utilization of solar heating systems.
Why is cross-seasonal heat storage important?
The mismatch between solar radiation resources and building heating demand on a seasonal scale makes cross-seasonal heat storage a crucial technology, especially for plateau areas. Utilizing phase change materials with high energy density and stable heat output effectively improves energy storage efficiency.
Can solar energy be used for cross-seasonal heating in highland areas?
Thus, the solar-driven cascaded phase change heat storage system for cross-seasonal heating holds significant application value in highland areas. The system utilizes solar energy as the primary energy source, which is abundant in the plateau region, effectively reducing reliance on traditional fossil energy sources and mitigating carbon emissions.
What is seasonal thermal energy storage (STES)?
Therefore, when the "source" side (solar heat source side) and the "load" side (energy using side) have significant seasonal characteristic, the seasonal thermal energy storage (STES) can effectively solve the mismatching characteristic of the solar energy heating system in time, space and strength.
Can a cross-seasonal heat storage system achieve low-carbon heating?
This study integrates cascaded phase change with a cross-seasonal heat storage system aimed at achieving low-carbon heating. The simulation analyzes heat distribution and temperature changes from the heat storage system to the heating terminal.
What are heat storage methods for solar-driven cross-seasonal heating?
Heat storage methods for solar-driven cross-seasonal heating include tank thermal energy storage (TTES), pit thermal energy storage (PTES), borehole thermal energy storage (BTES), and aquifer thermal energy storage (ATES) 14, 15, 16. As heat storage volume increases, hot water preparation costs and heat loss per unit volume decrease.
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Advances in seasonal thermal energy storage for solar …
The current energy demand in the buildings sector (e.g. space heating and domestic hot water) accounts for 40 % of the total energy demand in the European Union (EU) [1].This demand is often met by means of district heating (DH) systems that are connected to combined heat and power (CHP) and/or heating plants in which the heat produced comes mostly from …
Learn More →Performance investigation of a solar-driven cascaded phase …
Utilizing phase change materials with high energy density and stable heat output effectively improves energy storage efficiency. This study integrates cascaded phase change …
Learn More →A Review of Seasonal Hydrogen Storage Multi-Energy …
Based on these, the key to the study of a multi-energy system for cross-season hydrogen storage is to start with hydrogen storage methods, coupling models, and benefit evaluation. ... buffer links to realize a "system-hydrogen-natural gas" hybrid energy storage system. In the field of models, Yang et al. [4] proposes a wind power and ...
Learn More →Seasonal energy storage for zero-emissions multi-energy systems …
In this contribution, we provide a framework for modeling underground hydrogen storage, with a focus on salt caverns, and we evaluate its potential for reducing the emissions …
Learn More →Optimization of integrated energy systems considering …
To address the problem of large differences in user loads and renewable energy sources between seasons, a regionally integrated energy system, including the seasonal thermal energy storage system, is established. The seasonal thermal energy storage system is coupled with heat pumps and solar collectors.
Learn More →Seasonal thermal energy storage using natural structures: …
Seasonal thermal energy storage (STES) allows storing heat for long-term and thus promotes the shifting of waste heat resources from summer to winter to decarbonize the district heating (DH) systems. Despite being a promising solution for sustainable energy system, large-scale STES for urban regions is lacking due to the relatively high initial investment and …
Learn More →Operation strategy of cross-season solar heat storage heating system …
In the high-cold and high-altitude area in western China, due to the abundant solar energy and hydropower resources, the use of electric auxiliary cross-season solar heat …
Learn More →VWHPRI*URXQG VRXUFH+HDW 3XPSIRU&URVV …
storage system can also achieve cross-season utilization of natural energy, provides a new way for the application of ground source heat pump heating technology in severe cold areas. However, the ...
Learn More →A review of available technologies for seasonal thermal energy storage ...
Solar energy storage has been an active research area among the various solar energy applications over the past few decades. As an important technology for solving the time-discrepancy problem of solar energy utilisation, seasonal/long-term storage is a challenging key technology for space heating and can significantly increase the solar fraction.
Learn More →Research on Thermal Characterization of Soil Heat Transfer in Cross ...
The cross-seasonal borehole thermal storage technology is based on the solar heat source exchanging heat with the underground soil through the buried pipe heat exchanger, …
Learn More →CN103175275A
The invention relates to a domestic installation, namely, a cross-season energy storage pool. The cross-season energy storage pool is characterized in that a container-shaped energy storage pool (2) which can contain water is arranged, a waterproof insulation layer (10) is arranged around the container-shaped energy storage pool (2) which can contain water, an energy accumulation …
Learn More →CN109405615B
A phase-change material based seasonal heat storage pool. The heat storage tank is an enclosed space consisting of a bottom part, side walls and a top part, and the enclosed space is filled with a heat storage accumulation bed consisting of phase-change materials. The heat storage tank is internally provided with a hot water well and a cold water well.
Learn More →Development status and prospect of underground thermal ...
Numerical modeling of aquifer thermal energy storage system. Energy, 35(12): 4955−4965. DOI: 10.1016/j.energy.2010.08.029. Larsen H, Sonderberg P. 2015. DTU International Energy Report: Energy Systems Integration for the Transition to Non-Fossil Energy
Learn More →Ten differences of seasonal borehole thermal energy storage system …
Cross-seasonal energy storage systems based on sensible heat storage often have a large scale, with energy storage media including water, rock, soil, etc. Seasonal BTES system is a type of STES system and one of the most promising long-term underground thermal energy storage technologies [11] .
Learn More →Underground Pumped hydro storage
Figure 1. Underground pumped hydro scheme [11] Figure 2. Grid gallery underground pumped lower reservoir example [3] Underground Pumped hydro storage Principle Since decades pumped hydro storage is a proved technology in the energy-management system to balance the differences between generation and demand of electrical energy. Similar
Learn More →Advance in deep underground energy storage
Advance in deep underground energy storage: YANG Chunhe,WANG Tongtao (State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China) Abstract; Figure/Table; References (0)
Learn More →Seasonal energy storage for zero-emissions …
The deployment of diverse energy storage technologies, with the combination of daily, weekly and seasonal storage dynamics, allows for the reduction of carbon dioxide (CO2) emissions per unit ...
Learn More →Seasonal energy storage for zero-emissions multi-energy systems …
Underground hydrogen storage (UHS) was already proposed in the 1970s by Gregory et al. [11], Kippenhan and Corlett [12], and Walters [13].Later, Carden and Paterson [14], and Lindblom [15] have extended the work to a more quantitative analysis with focus on various reservoirs and mined caverns, respectively.Today, among the large-scale installations that can …
Learn More →Performance investigation of a solar-driven cascaded phase …
This study aims to utilize solar energy and phase change thermal storage technology to achieve low carbon cross-seasonal heating. The system is modelled using the open source EnergyPlus software ...
Learn More →An overview of underground energy storage in porous …
China is currently constructing an integrated energy development mode motivated by the low carbon or carbon neutrality strategy, which can refer to the experience of energy transition in Europe and other countries (Xu et al., 2022; EASE, 2022).Various branches of energy storage systems, including aboveground energy storage (GES) and underground energy …
Learn More →The most comprehensive analysis of …
At the same time, under certain conditions, underground thermal energy storage systems have more significant economic benefits compared with ordinary geothermal systems. The return on investment time for a typical …
Learn More →Optimal planning of Cross-regional hydrogen energy storage systems ...
The cross-regional consumption of renewable energy can effectively solve the problem of the uneven spatial distribution of renewable energy. To explore the application of hydrogen energy storage systems (HESS) for cross-regional consumption of renewable energy, optimal planning of cross-regional HESS considering the uncertainty is researched in this study.
Learn More →Assesment for optimal underground seasonal thermal energy storage
Underground thermal energy storage includes water tank systems, aquifer storage, and underground soil storage, mainly focused on borehole arrays, whose application …
Learn More →Seasonal hydrogen storage for sustainable renewable energy …
Child et al. carried out an analysis using the EnergyPLAN tool to identify the role of energy storage in a conceptual 100% renewable energy system for Finland in 2050, assuming installed capacities of renewable alone with hybrid energy storage systems that include a stationary battery, battery electric vehicle (BEV), thermal energy storage, gas ...
Learn More →Stochastic optimal planning scheme of a zero-carbon multi-energy system ...
The environmental nuisance attributed to the conventional power industry, coupled with the increasing concern of the energy crisis [1, 2], has promoted the adoption of sustainable and self-regulated energy systems such as solar photovoltaic (PV) and wind energy [[3], [4], [5], [6]].On the contrary, multi-energy systems (MES) that deal with the integration of various …
Learn More →Underground Gravity Energy Storage: A Solution …
Low-carbon energy transitions taking place worldwide are primarily driven by the integration of renewable energy sources such as wind and solar power. These variable renewable energy (VRE) sources require energy …
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