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Multi-objective optimization and evaluation of the building …
Building integrated photovoltaic thermal (BIPV/T)-energy pile ground source heat pump (GSHP) system effectively maintains the soil thermal balance and improves the photovoltaic efficiency by recovering the waste solar heat from the BIPV/T collector to charge the ground. However, due to the strict carbon emission restriction and economic …
Seasonal thermal energy storage in Finland
• Why do we need seasonal energy storage? • How do we store energy for long periods? • What is the future of seasonal energy storage? Questions welcome! 9.3.2020 …
Numerical analysis of seasonal heat storage in an energy pile …
By injecting thermal energy in summer and extracting it in winter, the ground in the area of a building''s piles can be used for seasonal energy storage, as long …
Heat Transfer and Bearing Characteristics of Energy Piles: Review
Energy piles, combined ground source heat pumps (GSHP) with the traditional pile foundation, have the advantages of high heat transfer efficiency, less …
Energy Storage Charging Pile Management Based on Internet of …
Energy Storage Charging Pile Management Based on Internet of Things Technology for Electric Vehicles Zhaiyan Li 1, Xuliang Wu 1, Shen Zhang 1, Long Min 1, Yan Feng 2,3,*, Zhouming Hang 3 and Liqiu ...
Numerical analysis of seasonal heat storage in an energy pile ...
The energy balance equation of the saturated soil has the following form: (13) ∂ (ρ C p (T-T 0)) ∂ t ︸ Heat storage + div (f T) ︸ Heat transfer-Q T = 0 where f T is the heat flow, Q T is a volume heat source, and ρ and C p are the density and specific heat of the mixture (solid matrix with voids filled by liquid), respectively.
Simulation and Analysis of the Thermal-Mechanical Response of an Energy ...
The evaluation and optimal design of energy piles is an emerging research direction in recent years. Huang et al. [] proposed a new type of independent drawable double helix energy pile and evaluated its heat pumping effect by numerical simulation.Alberdi-Pagola et al. [] verified and optimized an actual energy pile foundation …
Energy Storage Charging Pile Management Based on Internet of …
The battery energy storage technology is applied to the traditional EV (electric vehicle) charging piles to build a new EV charging pile with integrated charging, discharging, and storage; Multisim software is used to build an EV charging model in order to simulate the charge control guidance module. The traditional charging pile …
Thermomechanical performance analysis of MicroPCM-enhanced energy pile ...
Energy pile is a form of pile foundation that combines load-bearing and heat exchange, marking a pivotal avenue for harnessing geothermal energy. Recent strides in research have highlighted the incorporation of microencapsulated phase change materials (MicroPCM) into energy piles due to their potential to amplify heat transfer efficiency.
Accelerated development of new charging piles to solve new energy ...
In order to facilitate the new energy vehicle owners'' trip to this pagoda, the State Grid Jinhua Power Supply Company has installed newly-developed ceiling-mounted movable charging piles, smart mobile charging robots and mobile charging-and-storage machines in the pagoda site''s underground garage, which really impresses the tourists.
Numerical analysis of seasonal heat storage in an energy pile …
Surface temperature boundary conditions are in most cases defined using either a constant temperature [3,9], often the same as the initial temperature [1, 4 to 8, 11, 13, 15, 17, 20], or in a few ...
2025 Shanghai International Charging Pile and Battery Swapping ...
2025 Shanghai International Charging Pile and Power Exchange Technology Exhibition will be held in Shanghai New International Expo Centre on August 13-15, ... charging station intelligent network project planning results, energy storage batteries, power batteries and battery management systems, etc., and actively build this exhibition into a ...
Laboratory study on the thermo-mechanical behaviour of a phase …
Phase change concrete energy pile (PCCEP) is a kind of underground energy structure with economy and efficiency. A set of model experimental system of PCCEP was built in the laboratory to assess the effects of phase change process, inlet water temperatures, intermittent modes, mechanical loads and thermal cycles on its thermo- …
A DC Charging Pile for New Energy Electric Vehicles
New energy electric vehicles will become a rational choice to achieve clean energy alternatives in the transportation field, and the advantages of new energy electric vehicles rely on high energy storage density batteries and efficient and fast charging technology. This paper introduces a DC charging pile for new energy electric …
Finite cylinder-source model for energy pile heat exchangers: …
A mean integral solution to the FCS (finite cylindrical source) model for ground heat exchangers that takes into account the heat capacity inside the borehole or foundation and allows estimation of temperature field for an arbitrary borehole configuration is presented as a single integral. Approximate expressions for the average temperature …
A holistic assessment of the photovoltaic-energy storage …
In addition, as concerns over energy security and climate change continue to grow, the importance of sustainable transportation is becoming increasingly prominent [8].To achieve sustainable transportation, the promotion of high-quality and low-carbon infrastructure is essential [9].The Photovoltaic-energy storage-integrated …
Underground solar energy storage via energy piles | Request PDF
Wu et al. [41] investigated the solar energy storage capacity of an energy pile-based bridge de-icing system with the bridge deck embedded with thermal pipes severing as the solar collector.
Investigation on thermal performance of energy pile and borehole heat ...
The building was a two-story above ground with independent foundations and no basement. Polyethylene pipes, double-U shape (thickness = 2 mm and outer diameter = 25 mm), were installed in the energy piles and the borehole heat exchangers. Furthermore, one energy pile and one borehole heat exchanger were selected for experiments.
Energy Storage Charging Pile Management Based on …
of the energy-storage charging pile; (2) the control guidance circuit can meet the requirements of the charging pile; (3) during the switching process of charging pile connection state, the voltage
Design And Application Of A Smart Interactive Distribution Area …
This paper proposes a collaborative interactive control strategy for distributed photovoltaic, energy storage, and V2G charging piles in a single low-voltage distribution station …
A review on energy piles design, evaluation, and optimization
Understanding the heat transfer across energy piles is the first step in designing these systems. The thermal process goes in an energy pile, as in a borehole heat exchanger, in different stages: heat transfer through the ground, conduction through pile concrete and heat exchanger pipes, and convection in the fluid and at the interface …
Underground solar energy storage via energy piles: An …
Energy storage needs to account for the intermittence of solar radiation if solar energy is to be used to answer the heat demands of buildings. Energy piles, which embed thermal loops into the ...
Incorporating phase change materials in geothermal energy piles for thermal energy storage …
Energy storage substances such as phase change materials (PCMs) can be incorporated into energy piles to store the heat that is rejected into the ground to improve the performance of the GEP ...
Surface as a solar collector. Piles charging the clay …
Piles charging the clay storage in summer and discharging in winter. Source publication. Underground parking lot at Turku market square - Zero energy parking hall and the biggest solar...
Field tests on the thermomechanical responses of PHC energy piles …
Energy piles play dual roles of structural load bearing and heat exchange with shallow geothermal energy. Based on a pile foundation construction project for gymnasium engineering in Zhoukou city, five field tests were carried out to study the thermomechanical responses of a prestressed high-strength concrete pipe pile (PHC) …