Fluctuation of indoor temperature caused by energy recovery ventilator in air conditioning system in China: problem analysis and improvements

摘要

Many air conditioning systems with single energy recovery ventilator could not meet with the outdoor air load and the need for dehumidification in residential building in China. This could make indoor air temperature fluctuate and result in condensing on the outlet. Adding a direct - expansion blast heater with heat pump for outdoor air system and designing a reasonable fresh - air airflow distribution were proposed. After theoretical analysis and experimental investigation on an engineering case, the results showed that the initial fluctuation of indoor air temperature and condensing on the outlet had reduced effectively.