OPTIMIZED DESIGN AND ANALYSIS OF AIR HANDLING UNIT LEVERAGING CAE TOOLS

Abstract

Air Handling Unit is defined as a self-contained unit that the conditions of air vary while
passing through it and reach to the desired temperature and humidity. To perform variations in weather
conditions various processes such as heating, cooling, humidification, dehumidification and mixing are
applied. In this research thermodynamic modeling and analysis of air handling units approaching
minimum energy consumption is achieved. The objective function for analyzing is pressure drop of air
crossing coil per cooling and heating load of the system. This function comprises all thermal and
geometrical parameters of the coils such as coil surface area, number of rows, fin spacing and air side
pressure drop of the coil. The optimization results are to compose of minimum pressure drop, optimum
area, and optimum number of rows and fin spacing. The effects of varying the cooling and heating load,
fin efficiency and the surface area of the coil on fan power consumption are investigated as well. A
simulation results to experimental results, gained with a test bed. This method is used to design the unit
in modeling tool Catia, which is simple method as compared with the other design methods. These work
gives the combination of theoretical and software tool to provide a comparative analysis in the Ansys for
the duct size.