Optimization of rectangular cross-section air ducts
Abstract
Optimization of rectangular cross-section air ducts
Incoming article date: 19.04.2022The article provides a solution to the problem of optimizing air ducts with a rectangular cross-section for ventilation and air conditioning systems. Based on the use of the methodology for optimizing air ducts according to the above costs, the optimal proportions of the sides of the rectangular cross-section of the duct are determined, depending on the amount of material costs for the duct device and the cost indicators of its operation. The obtained optimal aspect ratios of the cross sections of the ducts are universal and do not depend on the location of the duct relative to the system fan. These conditions allow, at the design stage of the ventilation system, to assess the degree of optimality of the decisions made on the choice of the dimensions of the cross-sections of the ducts and, if necessary, to make appropriate changes to the design solutions of the ventilation system. The obtained optimality conditions allow them to be included in the calculation programs of the air.
Keywords: fan, air heater, ventilation system, heating and ventilation system, energy, power, energy efficiency, energy conversion, mechanical power flow, thermodynamic system