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Reduced-order modeling method for phase-change thermal energy storage
Fig. 1 shows the schematic of the phase change thermal storage device, in which the PCM slabs are separated by tubes. As the fluid flows through the tube, heat is transferred between the fluid and the PCM slab. Fig. 2 shows the phase change process (either melting or solidification) in a single PCM slab derived from the PCM-HX simulation
Thermal performance of a plate-type latent heat thermal energy storage heat exchanger
DOI: 10.1016/j.est.2023.107295 Corpus ID: 258142544 Thermal performance of a plate-type latent heat thermal energy storage heat exchanger - An experimental investigation and simulation study @article{Li2023ThermalPO, title={Thermal performance of a plate
Simulation study on the effect of fins on the heat transfer performance of horizontal dual-inner-tube latent thermal energy storage heat exchangers
Among the most important forms of energy, heat is used daily in domestic, commercial, transportation, and industrial settings [2]. Heat exchangers are considered to be the most crucial component
Multi-objective optimization of a plate heat exchanger thermal
A plate heat exchanger thermal energy storage working with a heat pump was optimized. The optimization observes significant enhancements in the system''s
Finite cylinder-source model for energy pile heat exchangers: Effects of thermal storage and vertical temperature variations
Finite cylinder-source model for energy pile heat exchangers: Effects of thermal storage and vertical temperature variations Author links open overlay panel Tatyana V. Bandos a, Álvaro Campos-Celador b, Luis M.
Investigation Performance of Shell-and-Tube Heat Exchangers
a further cooling procedure throughout the heat exchanger before it is transported via a tube with a U-shaped shape. The research used a heat exchanger with a shell and tube
Heat Exchangers For Green Energy Storage Projects
With over 84 years of industry experience, Glacier Energy has the specialist knowledge required to manufacture custom heat transfer equipment using exotic metals like inconel or titanium. As one of the most inventive engineering teams in the industry, we''re the perfect partner for any green energy storage project.
Heat release characteristics of a latent heat storage heat exchanger
On the other hand, heat exchangers that can be used in non-clean environments are critical in recent applications. For example, the scale of geothermal utilization [8][9][10] and the solidified
Customized Heat Exchangers | Noren Thermal, Inc.
Whether you need a single custom unit or multiple ones, we''re here to design and manufacture heat exchangers that align perfectly with your application''s demands.
Experimental Study of the Annual Operation of an Air-soil Heat Exchanger in Ouagadougou, American Journal of Energy
The use of air-soil heat exchangers for cooling habitats has developed considerably in recent years. An air-soil heat exchanger (ASHE) is a geothermal system that uses the thermal inertia of the soil to heat or cool part of the air to renew a habitat. It is sometimes called a Canadian well or a Provencal well. In this present work, we have
Simulation study on charging performance of the latent energy storage
A fast reduced model for a shell-and-tube based latent heat thermal energy storage heat exchanger and its application for cost optimal design by nonlinear programming. International Journal of Heat and Mass Transfer, Volume 176,
Experimental and computational study of melting phase
In this paper, the heat exchanger structure and HTF parameters of a plate-type latent heat thermal energy storage (LHTES) heat exchanger were investigated through experiments and simulations. From the experimental tests, it was observed that thermocouples accelerated the melting process of paraffin by 6 % on average for a single
Multi-Objective Optimization of a Plate Heat Exchanger Thermal Energy
Request PDF | On Jan 1, 2023, Mehrdad Taghavi and others published Multi-Objective Optimization of a Plate Heat Exchanger Thermal Energy Storage with Phase Change Material | Find, read and cite
Reduced-order modeling method for phase-change thermal energy storage heat exchangers
To speed up the design process of thermal energy storage devices, it is critical to develop fast and accurate modeling methods for phase change material embedded heat exchangers (PCM HXs). This study developed and compared two approximation-assisted reduced-order PCM HX models for the simulation of thermal storage
Unsteady analysis of the cold energy storage heat exchanger in
DOI: 10.1016/j.energy.2021.122989 Corpus ID: 245440996; Unsteady analysis of the cold energy storage heat exchanger in a liquid air energy storage system @article{Chen2021UnsteadyAO, title={Unsteady analysis of the cold energy storage heat exchanger in a liquid air energy storage system}, author={Jiaxiang Chen and Luwei
Thermal performance of a plate-type latent heat thermal energy storage
With this aspect ratio, a staggered heat exchanger with an energy storage capacity of 1800 kJ was designed, as shown in Fig. 14. The total PCM volume was 0.01 m 3 for different structures. During energy storage, the heat transfer fluid (HTF) whose temperature was higher than the melting point of paraffin entered the heat
Paraffin core-polymer shell micro-encapsulated phase change materials and expanded graphite particles as an enhanced energy storage medium in heat
The Micro-Encapsulated Phase Change Materials (MEPCMs) with the melting point temperature of 28 C was used as an energy storage medium to control the thermal behaviour of a heat exchanger.
Thermal Characterization of Prototypical Integral Collector Storage Systems With Immersed Heat Exchangers | J. Sol. Energy
Natural convection is measured in an enclosure that represents an integral collector storage system (ICS) with an immersed tube-bundle heat exchanger. Heat transfer coefficients for bundles of 240 tubes contained in a thin enclosure of aspect ratio of 9.3:1 and inclined at 30 deg to the horizontal are obtained for a range of transient
Effect of inner-tube spacing on charging and discharging performance of latent energy storage heat exchangers
The used mesh is presented in Fig. 1 c.To ensure that the simulation results are not affected by mesh elements and time steps, the numerical simulations were conducted under different mesh elements and time steps. As shown in Fig. 2 a and b, the maximum difference of liquid fraction between 15444 elements and 24304 elements is
Experimental comparison of two heat exchanger concepts for latent heat
Published by Elsevier Ltd. Peer-review under the responsibility of EUROSOLAR - The European Association for Renewable Energy. 11th International Renewable Energy Storage Conference, IRES 2017, 14-16 March 2017, Düsseldorf, Germany Experimental compa iso of tw heat exchanger concepts for latent heat
Paraffin Wax As A Phase Change Material For Thermal Energy Storage: Tubes In Shell Type Heat Exchanger
The most optimal PCMs for efficiently heating water are myristic acid, palmitic acid, and stearic acid, which possess a high heat retention capacity for an extended duration. Paraffin wax is one
Thermal energy storage heat exchanger: Molten salt heat exchanger design for utility power plants
Thermal energy storage heat exchanger: Molten salt heat exchanger design for utility power plants Sizing procedures are presented for latent heat thermal energy storage systems that can be used for electric utility off-peak energy storage, solar power plants and other preliminary design applications.
Air-Sand Heat Exchanger for High-Temperature Storage
The air is distributed to the two modules and flows through two RSiC walls, transfers its thermal energy to the sand. 021010-6 / Vol. 133, MAY 2011 HotAir680''C Hot/Cold Sand Heliostat Field UUP Blower Cold Airî iBIower 110 cf Steam Generator steam 65 bar. 460''C Cold Storage Transport to Heat Exchanger Fig. 12 Modified storage concept for
Experimental Study of the Annual Operation of an Air-soil Heat
It is sometimes called a Canadian well or a Provencal well. In this present work, we have presented the experimental prototype implemented in Ouagadougou. It is
An experimental study on energy-storage based defrosting performance of an air source heat pump system with a micro-channel heat exchanger
At 300 s and 150 s, the outlet refrigerant temperatures of micro-channel heat exchanger in traditional and energy storage defrosting modes both reached 20.0 C, which was considered that the frost on the micro-channel heat exchanger had been completely
Modelling of Heat Exchangers Based on Thermochemical Material for Solar Heat Storage
Available online at ScienceDirect Energy Procedia 61 (2014) 2809 – 2813 The 6th International Conference on Applied Energy – ICAE2014 Modelling of heat exchangers based on thermochemical material for solar heat storage systems
Selection of Phase Change Material for Latent Heat Thermal Energy
Abstract. Phase change materials (PCMs) are promising for storing thermal energy as latent heat, addressing power shortages. Growing demand for concentrated solar power systems has spurred the development of latent thermal energy storage, offering steady temperature release and compact heat exchanger designs.
Experimental investigation of underground seasonal cold energy storage using borehole heat exchangers
1. Introduction Thermal energy storage (TES) technologies have been found to be a feasible option for addressing the challenges related to greenhouse gas emissions, global warming and energy saving (Stekli et al., 2013) this perspective, the exploration for an
Numerical investigation on the melting of nanoparticle
Latent heat storage units are widely used in building heating systems due to its high energy storage density, whereas the practical performances of them are limited by the low thermal conductivities of phase change materials. In this paper, copper nanoparticles were added into paraffin to enhance the heat transfer rate of a latent heat
Experimental and computational investigation of a latent heat energy
To improve heat transfer to/from the PCM, thus increasing the rate of charging/discharging of the storage unit, different configurations of heat exchangers (storage unit is in fact a kind of a
A review of thermal energy storage in compressed air energy storage
The future research directions of thermal energy storage in CAES are discussed. Compressed air energy storage (CAES) is a large-scale physical energy storage method, which can solve the difficulties of grid connection of unstable renewable energy power, such as wind and photovoltaic power, and improve its utilization rate.
Numerical investigation of heat transfer enhancement in a multitube thermal energy storage heat exchanger
However, because of the poor thermal conductivity of PCMs, designing an energy storage heat exchanger is a difficult challenge [19]. There are certain drawbacks to employing PCM in battery
Performance investigation and optimization of latent heat storage exchangers
Fig. 11 b quantifies the total amount of heat storage (i.e., heat storage capacity) as well as the latent heat fraction (i.e., the ratio of latent heat to total heat storage) of the two LHSE units. As described in the figure, the total heat storage capacity of innovative LHSE units is much higher than traditional LHSE units, except for the initial
Thermal performance of a latent thermal energy storage for exploitation
A PCM storage with a commercial paraffin inside an asymmetric plate heat exchanger was developed.. Experimental characterization under full load and partial load conditions was accomplished. • Energy storage densities of 116–198 kJ kg −1 were measured in the range 70–86 °C.. Charging/discharging the storage at 80% of max
Evolutionary Design of Heat Exchangers in Thermal Energy Storage
This chapter reviews the fundamental knowledge developed by the application of the constructal principle to the energy flows in the design of heat
A Vegetable Oil as Heat Transfer Fluid for Parabolic Trough
Semantic Scholar extracted view of "A Vegetable Oil as Heat Transfer Fluid for Parabolic Trough Collector: Dynamic Performance Analysis under Ouagadougou
Improvement of thermal performance of novel heat exchanger
At these parameters, the thermal energy storage heat exchanger exhibits the highest heat transfer efficiency. Furthermore, the heat exchanger is capable of producing 197.86 kg of hot water in 1365 s at an inlet flow rate of 300 L/h, achieving an impressive discharging efficiency of 82.73 %. These findings underscore the feasibility of
Unsteady analysis of the cold energy storage heat exchanger in a liquid air energy storage
Liquid air energy storage (LAES) is promising in the large scale energy storage field. The heat exchanger (Hex) in a LAES system using liquid phase working mediums for cold energy storage (CES) works discontinuously for the intermittent characteristic of the LAES. Variable temperature distribution exists in the Hex for CES (Hex-CES) in the intermittent
State-of-the-art heat transfer fluids for parabolic trough collector
HTF (Heat transfer fluid) is made to pass through the absorber tube, which converts water to steam and then the steam is made to run the turbine to generate power. Storage of energy after sundown and low heat transfer efficiency of the HTF are the major challenges faced by solar thermal technologies.
Experimental Study of the Annual Operation of an Air-soil
An air-soil heat exchanger (ASHE) is a geothermal system that uses the thermal inertia of the soil to heat or cool part of the air to renew a habitat. It is sometimes