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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Broyda V.A. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleEffectiveness of supply-exhaust heat recovery devices in co-operation with natural ventilation
Abstract.This article discusses the interaction of pairs of supply-exhaust heat recovery devices and natural ventilation. Equations of disposable pressure and pressure drop along the routes of air through the regenerative devices and exhaust system is written. Solution of the system of equations is in the form of exact formulas. On the basis of the system of equations for these devices is calculated airflows. Progress of the outside air temperature in annual cycle is described by harmonic oscillations. Since it involves change in the gravitational pressure, which affects the air flows through all of these devices. Characteristics of regeneration efficiency is given for the equal flow of supply and exhaust air through a pair of devices. Changes in air flow ratios reduce the efficiency of heat recovery. As a result of an assessment of the efficiency of heat recovery, which takes into account the temperature conditions, the estimated floor of the building, given the ratio of the air flow of the regenerative devices, and natural ventilation.
Keywords.Heat recovery, natural ventilation, effectiveness.
For citations:Broyda V.A. Effectiveness of supply-exhaust heat recovery devices in co-operation with natural ventilation // Izvestiya KGASU. 2011. №4(18) P.193-198.


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