Evaluation of Heat Transfer Performance of a Multi-Disc Sorption Bed Dedicated for Adsorption Cooling Technology

Sosnowski, Marcin

doi:10.3390/en12244660

Cited by 29 publications

(21 citation statements)

References 59 publications

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“…The reference wind speed at the hub height was 11.4 m/s [9]. The Grid Convergence Index (GCI) is recommended by the Fluids Engineering Division of the American Society of Mechanical Engineers as a reliable method for grid independence analysis [36]. The GCI was performed to evaluate the grid independence analysis results from the mesh resolution.…”

Section: Computational Domain and Grid Setupmentioning

confidence: 99%

Research on the Power Capture and Wake Characteristics of a Wind Turbine Based on a Modified Actuator Line Model

Xue

Duan²,

et al. 2022

Energies

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On a wind farm, the wake has an important impact on the performance of the wind turbines. For example, the wake of an upstream wind turbine affects the blade load and output power of the downstream wind turbine. In this paper, a modified actuator line model with blade tips, root loss, and an airfoil three-dimensional delayed stall was revised. This full-scale modified actuator line model with blades, nacelles, and towers, was combined with a Large Eddy Simulation, and then applied and validated based on an analysis of wind turbine wakes in wind farms. The modified actuator line model was verified using an experimental wind turbine. Subsequently, numerical simulations were conducted on two NREL 5 MW wind turbines with different staggered spacing to study the effect of the staggered spacing on the characteristics of wind turbines. The results show that the output power of the upstream turbine stabilized at 5.9 MW, and the output power of the downstream turbine increased. When the staggered spacing is R and 1.5R, both the power and thrust of the downstream turbine are severely reduced. However, the length of the peaks was significantly longer, which resulted in a long-term unstable power output. As the staggered spacing increased, the velocity in the central near wake of the downstream turbine also increased, and the recovery speed at the threshold of the wake slowed down. The modified actuator line model described herein can be used for the numerical simulation of wakes in wind farms.

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Section: Computational Domain and Grid Setupmentioning

confidence: 99%

Research on the Power Capture and Wake Characteristics of a Wind Turbine Based on a Modified Actuator Line Model

Xue

Duan²,

et al. 2022

Energies

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“…The AI methods can also be successfully used to model multibed chillers with multistage working cycles, in which the interdependence of many parameters determines the total efficiency of the device and the generated cooling capacity [29]. The computational fluid dynamics (CFD) models were elaborated in [30,31] to create and evaluate the novel constructions of adsorption beds. The numerical analyses of the finned heat exchanger geometries were carried out in [32,33] in order to improve the heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of an Intensified Heat Transfer Adsorption Bed (IHTAB) Reactor Prototype

et al. 2021

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The first experience in the operation of intensified heat transfer adsorption bed reactor designed for low-pressure adsorption processes is presented in this paper. This work aims to assess the possibility of fluidizing the porous media bed induced by the pressure difference between the evaporator and the adsorption reactor. The conducted experimental research allowed indicating the type of silica gel recommended to use in fluidized beds of adsorption chiller. The fixed bed of silica gel was observed for the lower pressure differences, while fluidization appeared in the case of the pressure difference between the evaporator and the adsorption chamber higher than 1000 Pa. The most significant differences in the adsorption process between the fixed bed and the fluidized bed are revealed in the changes of sorbent temperatures. The silica gel bed was fluidized with water vapor generated in the evaporator.

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“…The results of the CFD simulation showed that the heat transfer performance of a heat plate is improved under various conditions, and the correctness of the model was verified by the experimental results. Marcin Sosnowski et al [22] investigated the possibility of implementing an innovative multidisc sorption bed combined with a heat exchanger into adsorption cooling technology experimentally and numerically, and they incorporated a sorption model developed in-house into the commercial CFD code in the analysis [23].…”

Section: Introductionmentioning

confidence: 99%

An Advanced Flexible Multiflow Path Fixture Cooling Method for Additive Manufacturing Repair of Aero Blades

et al. 2021

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Currently, how to release the heat accumulated in the molten pool rapidly is the key factor in blade repair. We analyzed the problem of the current cooling method in blade additive manufacturing repair. Based on cooling effect, we proposed an advanced flexible multiflow path fixture cooling method for blade additive manufacturing repair. We created a coupled heat transfer model and deduced the heat transfer law for multiflow path conjugate flexible clamping. We obtained the optimal cooling scheme for flexible multiflow paths through numerical analysis. We built an experimental platform and tested the cooling effect of the fixture prototype by experiment. The results show that compared with the current cooling method, the new cooling method not only can lower the initial temperature of the fixture rapidly and realize the steady-state heat transfer between the fixture and the flow path quickly but can also significantly enhance the ability of fluid to participate in heat transfer in new flow paths, which significantly improves the cooling effect. The research results are of great significance for the improvement of aero blade additive manufacturing repair. INDEX TERMS Cooling method, blade repair, flexible fixture, numerical analysis, heat transfer.

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Evaluation of Heat Transfer Performance of a Multi-Disc Sorption Bed Dedicated for Adsorption Cooling Technology

Cited by 29 publications

References 59 publications

Research on the Power Capture and Wake Characteristics of a Wind Turbine Based on a Modified Actuator Line Model

Research on the Power Capture and Wake Characteristics of a Wind Turbine Based on a Modified Actuator Line Model

Experimental Investigation of an Intensified Heat Transfer Adsorption Bed (IHTAB) Reactor Prototype

An Advanced Flexible Multiflow Path Fixture Cooling Method for Additive Manufacturing Repair of Aero Blades

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