Optimisation of Heating, Ventilation and Air Conditioning (HVAC) with CO2 Removal System

Abstract

Maintaining the Indoor Air Quality while designing Heating, Ventilation and Air Conditioning (HVAC) in the buildings, has always been a challenging task. In a usual design, the indoor air quality is maintained by ensuring certain numbers of air changes in the buildings per hour, in which we add the fresh air into the HVAC system of the building from the outside environment. The study presented in this paper differs from this usual design approach for HVAC in the concept that it does not take the outside air (which is generally at a significantly higher or lower temperature than that of the inside air) for maintaining the desired CO₂ and oxygen levels inside the air-conditioned space but it makes use of the Indoor Air Quality Management System recently invented by BUNKERMAN [1, 2] to achieve this purpose. With a result, a considerable reduction in Peak Heat Load (20 to 30% approximately) is achieved as illustrated in the calculations presented in this study. The proposed approach also helps in electrical load balancing in a city in peak load hours and it mitigates the harmful effects of the split air conditioners which lack the provisions of ensuring the desired levels of CO₂ and Oxygen in the indoor air-conditioned space.