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EVALUATION OF SMART BOOSTER FANS AND DAMPERS FOR ADVANCED hvac SYSTEMS

Journal of Green Building 2021年第2期16卷 115-127页

作者： Behdad Rezanejadzanjani Paul G.O’Brien Department of Mechanical Engineering Lassonde School of EngineeringYork University 4700 Keele St.TorontoONM3J 1P3Canada

There is potential to significantly reduce CO_(2) emissions by increasing the efficiency and reducing the duty cycle of hvac systems by using smart booster fans and *** booster fans fit in the vents within a home,operating quietly on low power(2W)to augment hvac systems and improve their *** this study,a prototype duct system is used to measure and evaluate the ability for smart booster fans and dampers to control airflow to different vents for the purpose of increasing the efficiency of hvac *** case studies were evaluated:an hvac system(1)without any fans or dampers,(2)with a fan installed in one vent,but without any dampers,(3)with dampers installed at the vents,but without any fans,and(4)with both fan and dampers *** results from both the experi-mental and numerical evaluation show that the smart booster fan and dampers can significantly improve the airflow at a vent that is *** example,the airflow at the last vent in a ducting branch was increased from 17 to 37 CFM when a smart booster fan was installed at this *** from the numerical analysis show that for the case of an underperforming vent during the winter season the hvac running time may be reduced from 24 hr/day to 5.6 hr/***,results from the numerical analysis show the hvac running time is further reduced to 4.5 hr/day for cases 3 and 4.

关键词： hvac efficiency smart booster fans smart dampers airflow at hvac vents hvac duty cycles computational fluid dynamics(CFD)

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