Design and thermodynamic analysis of an advanced liquid air energy storage system coupled with LNG cold energy, ORCs and natural resources Energy, 275 ( 2023 ), Article 127538, 10.1016/j.energy.2023.127538
Latent thermal energy storage (LTES) heat exchangers have been intensively studied for a wide variety of applications such as buildings [1][2][3], grid level energy storage [4,5] and cold chain ...
Also replacing air with CO 2 in the energy storage system contributes to providing an approach to realize large-scale utilization of CO 2 [11]. Several impressing works have already been reported about the feasibility of the compressed CO 2 energy storage (CCES). A CCES system with low- and high-pressure reservoirs was presented …
The calculation results show that when other design parameters remain constant, under the un-equal compression ratio design condition, when the energy storage system is three-stage design, and the compressor adiabatic efficiency is as high as 95%, the compression heat temperature is only 379.05.K, the round-trip efficiency is the highest …
The energy storage density of the combined thermochemical energy storage LAES system was 3.4 times higher than that of the stand-alone LAES system [26]. Shahram Derakhshan et al. integrated a parabolic trough solar collector with a liquid air energy storage system and optimized the proposed system using a genetic algorithm …
By lowering the condensation temperature of the ORC-subsystem, cold energy storage can raise the cycle temperature differential. Cold storage Rankine Carnot battery (CSRCB) or called cold TI-PTES was first proposed by Frate et al. [31]. In a CSRCB system, the vapor compression refrigerator (VCR) is used to produces cooling at a sub …
Park et al. [21] proposed a LAES system coupling with LNG regasification and thermal energy storage, where LNG cold energy gradient utilization was adopted to improve the efficiency and thermal energy storage was applied to realize flexible operation. The results showed that the electrical round-trip and exergy efficiency were 187.4% and …
Generally, energy storage can be divided into thermal energy storage (TES) and electric energy storage (EES). TES are designed to store heat from a source …
Thermal energy storage based on phase change materials (PCMs) can improve the efficiency of energy utilization by eliminating the mismatch between energy supply and demand. It has become a hot research topic in recent years, especially for cold thermal energy storage (CTES), such as free cooling of buildings, food transportation, …
The application of the cold and heat storage technology with renewable energy distributed systems is an important development direction in the future. This study could provide …
The schematic of the LAES system is shown in Fig. 1 (a), including the compressor subsystem, the cold storage subsystem, the liquid air tank, and the turbine subsystem the energy storage process, the ambient air …
It is noted that there is no need to verify the irrelevance of the time step because an adaptive time step is used in COMSOL Multiphysics 6.0. Therefore, only the grid irrelevance is verified. By taking Case 1 (i.e., m in = 18 kg/s, T C, in = 600 K, PCM1:PCM2:PCM3 = 1:1:3, and d PCM1 = 20 mm, d PCM2 = 20 mm, d PCM3 = 30 mm) …
In this paper, the design method for liquid phase cold storage was proposed. A novel liquid air energy storage system with the compression power of 100 …
The exergy efficiency of heat exchangers is primarily influenced by the temperature difference between the hot and cold fluids. The exergy efficiencies of cooler#1 ∼ cooler#4 are 84.15 %, 87.14 %, 88.70 % and 92.95 %, while those of the AH#1 ∼ AH#3 are 74.94 %, 76.85 % and 77.03 %, respectively. ... Techno-economic analysis of an …
The technology for storing thermal energy as sensible heat, latent heat, or thermochemical energy has greatly evolved in recent years, and it is expected to grow up to about 10.1 billion US dollars by 2027. A thermal energy storage (TES) system can significantly improve industrial energy efficiency and eliminate the need for additional …
The design of thermochemical energy storage systems is complex and requires appropriate consideration of many factors. Generally, many criteria need …
Nitrogen as a refrigerant gas can obtain a low temperature of about –160°C [31], so nitrogen was selected as the cold source of the system. The cold energy storage cycle is mainly composed of heat exchangers and hot and cold fluid storage tanks. The cold energy storage cycle mainly acts in the first two stages of precooling.
Energy storage systems can mitigate the intermittent issues of renewable energy and enhance the efficiency and economic viability of existing energy …
The general status in different applications is outlined and summarized. Ultimately, the challenges of scale-up application in energy storage and development prospect of future energy storage technology are expressed. The result indicates that, the energy storage has been widely applied in power systems connected with renewable …
The performance of the system''s cold energy storage unit depends on the nature of the medium. Propane''s temperature range is adequate for recovering and storing the high-grade cold energy of LNG [26].Given that a substantial amount of cold energy is also present in the gasification process of liquid air, this design employs a two …
A typical district cooling system (DCS) with a chilled water storage system is analyzed in hot summer and cold winter area in China. An analysis method concerning operation modes is proposed based on measured data, which is obtained by long term monitoring and on-site measurements of cooling season. The DCS operates at …
Table S1 lists these properties of TBA SCH with comparison with ice. The density of TBA SCH is larger than that of ice (917 kg/m 3[61]) and is in the range of 1055–1094 kg/m 3. It makes SCH a superior candidate for cold energy storage and transport as it reduces the storage and transport volume required.
This is because the double-layer envelope is set two phase change temperature (23 C and 34 C). It can play a role of storage energy in winter, summer and transition season. 3.4. Influence of the thickness of …
In this paper, a novel LAES system integrating LNG cold energy, including intermediate energy storage, ORCs for cold energy utilization, multi-stage direct expansion, and …
Section snippets Optimization model of building energy systems. In view of the characteristics of building energy demand in hot summer and cold winter zones, energy storage system and gas boiler plus electricity chiller (i.e. reference system case I) are employed to provide energy demand for the building, and the optimization model of …
The methodology is divided into four steps covering: (a) description of the thermal process or application, (b) definition of the specifications to be met by the TES …
As mentioned above, a recuperated gas turbine power plant with an ITES inlet air cooling system is considered in this study. Fig. 1 illustrates the schematic diagram of the gas turbine power plant with inlet air cooling via ITES system, which has been considered in the present study. As shown in this figure, the whole plant consists of three …
Liquid air energy storage (LAES) is a kind of cryogenic energy storage technology that offers the advantages of relatively sizeable volumetric energy density and ease of storage, which will have good application prospects for power management systems in the future.
Table 9.4 lists the liquid yield, specific energy consumption, exergy efficiency and round-trip efficiency for three typical liquefaction processes and the modified Claude process with hot and cold energy storage. The storage and discharging sections of the three first processes are the same; the only difference is the liquefaction section for ...
To improve the utilization rate of liquefied natural gas (LNG) cold energy, reduce hydrogen (H 2) liquefaction cost, recover waste heat and reduce carbon dioxide (CO 2) emission, this study designs a steam methane reforming (SMR) H 2 liquefaction and waste heat recovery system based on LNG cold energy for the production of 10 tons of …
Considering China''s the large population, grain production and storage particularly play a vital role in its the national security. According to the white paper of "Food Security in China" published by the State Council of China [3], China''s annual grain production has remained above 650 × 10 6 t since 2015, and the grain storage capacity …
Furthermore, as underlined in Ref. [10, 18, 19], LAES is capable to provide services covering the whole spectrum of the electricity system value chain such as power generation (energy arbitrage and peak shaving), transmission (ancillary services), distribution (reactive power and voltage support) and "beyond the meter" end-use …
Highlights. A novel VOC cryogenic recovery system with cold energy storage was designed. The system can deal with exhaust gas discharged intermittently or under variable conditions. The system can use valley power for large-scale cold storage, providing cooling capacity for system operation at peak power consumption.
Techno-economic analysis of an advanced polygeneration liquid air energy storage system coupled with LNG cold energy, solar energy, and hydrate based desalination Energ Conver Manage, 297 ( 2023 ), Article 117726, 10.1016/j.enconman.2023.117726
Abstract. The application of energy storage technology can improve the operational. stability, safety and economy of the powe r grid, promote large -scale access to renewable. energy, and increase ...