Thermal and aerodynamic efficiency of a stationary switching regenerative heat exchanger

Monarkin, Nikolay; Лукин, С. В.; Anurov, Yu. M.; Tihomirov, B A; Agasiants, G A; Galileev, S M; Akhmetov, T. R.

doi:10.1088/1755-1315/337/1/012067

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…This section compares the aerodynamic characteristics of the regenerator, obtained in three different ways -known analytical equations [16,17], numerical results from computer simulations, and experimental measurements described above. The results for the pressure drop in the regenerator depending on the airflow rate, obtained in the three ways, are presented in the graph in Fig.…”

Section: Assessment Of the Aerodynamicmentioning

confidence: 99%

Verification and validation of a CFD model of a fixed regenerator for heat recovery from air

2021

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The article presents verification and validation of a numerical model of conjugated heat and mass transfer processes and aerodynamics in a fixed "honeycomb" type regenerator with square channels for heat recovery from the exhaust air of a local ventilation system. The processes in the regenerator are simulated by the CFD method. The influence of the processes of condensation and evaporation of moisture in the humid air on the efficiency of the regenerator has been investigated through these simulations and is shown in the article. The calculations of the fixed regenerator's thermal efficiency and pressure losses are made by known analytical models and the results are compared with those of the numerical model. The article compares the model simulation results with experimental data and data from reference sources.

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Section: Assessment Of the Aerodynamicmentioning

confidence: 99%

Verification and validation of a CFD model of a fixed regenerator for heat recovery from air

2021

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“…This requires additional efforts to improve the regenerative heat exchangers for decentralized ventilation units and the way they function. A parametric analysis of the factors affecting the efficiency of such devices is presented in [3,4]. For the current optimization, a multi-parameter mathematical model of a regenerator with periodic action was used, taking into account the mutual influence of all essential factors on the functional characteristics of the regenerator, presented in the article [5].…”

Section: Introductionmentioning

confidence: 99%

Simple improvements for decentralized air handling unit for regenerative heat recovery

Penev,

Tsokov,

Shushulov

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This paper presents the optimization of a fixed regenerative heat exchanger for a decentralized air handling unit (AHU) and a simple algorithm for its control. The influence of the geometric characteristics of the regenerative matrix and the duration of the airflow switching periods on thermal efficiency was analyzed. For this purpose, a numerical analysis using the finite volume method of the ANSYS, Fluent software was used. The simple logic of control is proposed as a result of field experiments and numerical analysis based on close-to-real operating conditions. The control algorithm prevents the operation of the device in case of a significant imbalance of the air flows and in case of a strong deterioration of the efficiency of the regenerator as a result of the presence of condensation of water vapour in the airflow through the regenerator.

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“…The most energy-efficient among them are stationary switching regenerative heat exchangers (SSRHE). Such devices can decrease the high heat consumption for ventilation and provide a fairly simple solution to the problem of insufficient air exchange in some rooms [1,2].…”

Section: Introductionmentioning

confidence: 99%

The influence of main parameters of regenerative heat exchanger on its energy efficiency

et al. 2020

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The influence of various parameters of stationary switching regenerative heat exchangers used for ventilation on its thermal efficiency was studied. Considered are the geometric (length, diameter and wall thickness of a single equivalent nozzle channel), thermophysical (density and heat capacity of the nozzle material) and operation (air flow through the regenerator and the time of one stage of accumulation/regeneration of thermal energy) parameters.

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Thermal and aerodynamic efficiency of a stationary switching regenerative heat exchanger

Cited by 6 publications

References 5 publications

Verification and validation of a CFD model of a fixed regenerator for heat recovery from air

Verification and validation of a CFD model of a fixed regenerator for heat recovery from air

Simple improvements for decentralized air handling unit for regenerative heat recovery

The influence of main parameters of regenerative heat exchanger on its energy efficiency

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