COMPLEX APPROACH METHODOLOGY AT DESIGNING VENTILATING EQUIPMENT WITH HEAT RECUPERATOR FOR ENTERPRISES OF ENGINEERING INDUSTRY

There are problems unsettled by manufacturers and installers of ventilation equipment during the design and definition of economy of its use connected with the absence of taking into account specific peculiarities of conditions for its operation and definition of reliable initial data for designing that causes errors during designing and unjustified expectations of a customer. There are obtained analytical dependences allowing the definition of reliable initial data for designing ventilation equipment with the recuperator of the heat of air removed for the specific conditions of operation in an engineering workshop. On their basis there is developed an algorithm for the computation of money savings taking into account actual energy consumption in value terms while overcoming aerodynamic resistances, a technique for the automated choice of essential equipment is also shown. The problem of the theoretical definition of incoming air temperature at the output of the recuperator Tin. air re. is solved. For computation automation there is carried out an approximation of data by mean temperature Tatm during diurnal hours Tatm day and nocturnal ones Tnoct. of the day for the last ten years for the eastern areas of Belarus and regression equations are obtained. The algorithm obtained in combination with analytical dependences for the definition of the condensate volume formed in the recuperator at the efficient arrangement of the ventilation equipment make a methodology for the complex approach at designing ventilation equipment with the heat recuperator for enterprises of engineering industry. The methodology mentioned allows designing a ventilation system for the workshop of an engineering enterprise in accordance with specific conditions of its operation it also allows defining a reliable value of economy of funds taking into account actual loss.