Abstract
The paper deals with the causes and consequences of malfunctioning of natural and mechanical ventilation systems in civil buildings of Russia. Furthermore it gives their classification and analysis based on the literature review. On the basis of the analysis technical solutions for improving the efficiency of ventilation systems in civil buildings are summarized and the field of their application is specified. Among the offered technical solutions the use of autonomous ventilation systems with heat recovery is highlighted as one of the most promising and understudied. Besides it has a wide range of applications. The paper reviews and analyzes the main Russian and foreign designs of ventilation systems with heat recovery that are mostly used in practice. Three types of such systems: UVRK-50, Prana-150, ТеFо are chosen for consideration. The sequence of field tests of selected autonomous ventilation systems have been carried out in order to determine the actual air exchange and efficiency of heat recovery. The paper presents the processed results of the research on the basis of which advantages and disadvantages of the tested ventilation systems are identified and recommendations for engineering and manufacturing of new design models of autonomous ventilation systems with heat recovery are formulated.
Highlights
Today, we can come across the term "sick building syndrome" in the specialized literature
We can come across the term "sick building syndrome" in the specialized literature. This is a widespread phenomenon in most civil buildings of Russia [1,2,3,4,5,6]
The main causes of the ventilation systems malfunctioning in premises of civil buildings are ambiguous and depend on lots of factors
Summary
We can come across the term "sick building syndrome" in the specialized literature. This is a widespread phenomenon in most civil buildings of Russia [1,2,3,4,5,6]. The main causes of the ventilation systems malfunctioning in premises of civil buildings are ambiguous and depend on lots of factors. Regulatory causes – the papers [10 14] provide facts that as the requirements for thermal protection of buildings were reviewed, since 1995, the degree of air-tightness has been considerably increased. Codes of structural design were changed, a number of factors affecting the estimated and actual values of the air exchange remain unconsidered as far as contemporary standards are concerned [16, 18, 19]
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