A new approach to regenerating heat and moisture in ventilation systems

Aristov, Yu. I.; Mezentsev, I. V.; Mukhin, V. A.

doi:10.1016/j.enbuild.2007.02.029

Cited by 32 publications

(11 citation statements)

References 9 publications

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“…First, the difference between the common Ventireg method [8] and the new VentireC approach is discussed. The Ventireg unit consists of an Ad bed, located inside the unit close to the room; and an HS bed placed close to the outdoors (Figure 1a).…”

Section: Description Of the Ventirec Processmentioning

confidence: 99%

“…An effective Ventireg method for simultaneous heat and humidity regeneration in ventilation systems in cold countries was suggested and tested in [8]. In the Ventireg process, indoor air passes through adsorbent (Ad) and heat-storing (HS) beds, where indoor moisture and heat are respectively absorbed.…”

Section: Introductionmentioning

confidence: 99%

“…This approach reduces heat loss, avoids ice formation at the unit's exit point, and humidifies the supplied air to ensure comfortable indoor conditions. This system achieved energy recovery up to 95%, while 70-90% of the moisture was returned to the room, simultaneously preventing ice formation, as tested under climatic conditions in Western Siberia [8]. The Ventireg is excellently adapted for cold countries, as its efficiency increases with a larger difference between indoor and outdoor temperatures.…”

Section: Introductionmentioning

confidence: 99%

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New Adsorption Method for Moisture and Heat Exchange in Ventilation Systems in Cold Countries: Concept and Mathematical Simulation

et al. 2020

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Due to global climate change and fossil fuel depletion, the rational use of thermal energy has attracted great research interest. Large differences between indoor and outdoor temperatures in cold regions results in huge amounts of heat waste and drop in indoor humidity. Ventireg, an adsorption method, has been often recommended for heat and humidity regeneration in cold countries. In this research work, VentireC, an advanced method employing two thermally coupled adsorbent beds is discussed. It allows the heat released during adsorption of moisture in one adsorber to be transferred to another adsorber to facilitate water desorption. The VentireC approach is comprehensively analysed and described in this paper. A composite adsorbent based on LiCl in silica gel pores, which can exchange up to 0.5 g-H2O/g-sorbent, is selected for VentireC processes under cold Western Siberia conditions. Mathematical simulation of humidity recuperation, employing the selected sorbent with and without thermal coupling, demonstrates the advantages of the VentireC process.

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Section: Description Of the Ventirec Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Adsorption Method for Moisture and Heat Exchange in Ventilation Systems in Cold Countries: Concept and Mathematical Simulation

et al. 2020

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“…Based on the knowledge achieved by this study, Aristov et al [5] created the regenerating heat and moisture exchanger VENTIREG. VENTIREG exchangers are formed by a layer of heat storing material and a layer of water absorbent that operate intermittently [4].…”

Section: Ventireg Exchangersmentioning

confidence: 99%

“…In order to achieve a further reduction in energy use, the focus must be set on high energy efficient ventilation and heat/energy recovery [4]. Estimates show that 70 % of the energy lost through mechanical ventilation systems can be recovered by using heat/energy recovery systems [5]. Estimates show heat recovery systems typically recover about 60-95% of the heat in exhaust air [6].…”

Section: Introductionmentioning

confidence: 99%