Analysis of the efficiency of air-to-air heat exchanger with a periodic change in the flow direction

Низовцев, М. И.; Borodulin, V. Yu; Letushko, V. N.; Zakharov, Alexander

doi:10.1016/j.applthermaleng.2015.09.029

Cited by 34 publications

(21 citation statements)

References 37 publications

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“…Most of the information comes from catalogs and brochures from manufacturers. In the literature, experimental and theoretical study of the heat exchanger with a periodic change in the flow direction for room ventilation [7], and stochastic analysis of compact plate-fin recuperators for microturbines [8] can be found.…”

Section: Introductionmentioning

confidence: 99%

Research of Single Room Decentralized Heat Recovery Unit

Koper

Palmowska

Myszkowska

2020

Architecture, Civil Engineering, Environment

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Mechanical ventilation systems with heat recovery units are one of the key elements of low energy residential buildings and it has gained increasing interest during the last years. This research presents experimental investigation of the work of the compact recuperator, as a part of the decentralized, single pipe ventilation system, in real conditions. An experimental study was carried out to obtain data for tested unit efficiency calculation, for supply and exhaust mode. The scope of measurement encompassed the air temperature and airflow rate. Tested recuperator fulfilled its role of ventilation with heat recovery, however, some deficiencies were indicated. As a result of measurements it has been noticed that it is possible to improve the device in the future. This possibility of improvement of this device was suggested in the conclusions.

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Section: Introductionmentioning

confidence: 99%

Research of Single Room Decentralized Heat Recovery Unit

Koper

Palmowska

Myszkowska

2020

Architecture, Civil Engineering, Environment

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“…If the exchanger surface of regenerators is coated with desiccants, they will be able to exchange both heat and moisture, while the surface without desiccant is able to exchange only heat between airflows. Rotary regenerators have been extensively studied in the literature [11]; however, studies regarding the application of stationary regenerators in HVAC systems in the literature are very limited [12]- [15], despite their promising effectiveness compare to other types of AAEEs.…”

Section: Introductionmentioning

confidence: 99%

“…Although several studies have been done to understand the physics of heat and moisture transfer in energy wheels, only a few studies have focused on the testing and modeling of fixed-bed heat and moisture regenerators for HVAC applications [11], [18], [19]. Nizotsev et al [12], [20] performed experimental and numerical research on a heat exchanger mounted on the building wall with a reversible fan to create a periodic change in the airflow direction. They studied the variation of effectiveness with mass flow rate and air temperature.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Fixed-Bed Regenerators for Energy Recovery in Buildings Applications

2020

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Energy consumption for ventilation purposes in buildings makes up a considerable portion of HVAC energy consumption. Energy recovery ventilators (ERVs) can reduce the required energy to pre-condition outdoor air in winter and summer seasons. Due to the high ratio of heat transfer area to volume, Fixed-Bed Regenerators (FBRs) can reach high effectiveness up to 90%. However, limited research studies are available for FBRs in HVAC applications. In this paper, a small-scale test facility is used to determine the sensible effectiveness of a FBR. Furthermore, a numerical model is proposed and validated against the experimental results from the small-scale test facility. The numerical results for latent effectiveness have been compared with available data in the literature and the comparison shows a satisfactory agreement between numerical and results from the literature.

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“…Despite various applications of FBRs in furnaces and heat recovery systems in industries such as aluminum, cement and glass making, the available literature on the applications of FBRs for HVAC systems is limited [5]. Nizovtsev et al [6] performed an experimental study on a FBR for single room ventilation. They also presented a simple one-dimensional, physical-mathematical model.…”

Section: Introductionmentioning

confidence: 99%

Fixed Bed Regenerators for HVAC Applications

Ramin

Krishnan

Simonson

2019

Symposium on Energy Efficiency in Buildings and Industry

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Air-to-air energy recovery ventilators (ERVs) are able to reduce the required energy to condition ventilation air in buildings. Among different types of ERVs, fixed-bed regenerators (FBRs) have a higher ratio of heat transfer area to volume. However, there is limited research on FBRs for HVAC applications. This paper presents preliminary experimental and numerical research of FBRs at the University of Saskatchewan. The numerical and experimental results for effectiveness of FBR agree within experimental uncertainty bounds and the results agree with available empirical correlations in the literature.

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Analysis of the efficiency of air-to-air heat exchanger with a periodic change in the flow direction

Cited by 34 publications

References 37 publications

Research of Single Room Decentralized Heat Recovery Unit

Research of Single Room Decentralized Heat Recovery Unit

Effectiveness of Fixed-Bed Regenerators for Energy Recovery in Buildings Applications

Fixed Bed Regenerators for HVAC Applications

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