Comparative study of ventilation strategies for a residential air conditioning system

This paper presents two kinds of ventilation strategies applied respectively to an air-duct-type residential central air conditioning (A/C) system including a variable-speed compressor with inverter and a multi-speed air handler fan. First strategy : the ventilation damper was controlled according to the carbon dioxide (CO2) concentration of space air , allowing intermittent ventilation. Second strategy : outdoor air was inhaled into the habitable space continuously at a fixed minimum flow rate specified by ASHRAE Standard 62.2P. Those two ventilation strategies were compared in detail , using a validated simulation model for the A/C system,