Measurement on Energy Conservation of Heat Pump Air ConditioningSystem Employing Energy Recovery Ventilation in an Office Building

It is known that there are some methods ofenergy conservation for building facilities.Energy recovery ventilator (ERV),which canrecover sensible heat and latent heat, is one ofthe solution to reduce heatinglcooling loads,which are related to the power consumption ofair conditioning systems. Manufacturesspecify the performance of ERV'seffectiveness on the specification, however,there are few measured examples on energyeffectiveness in actual conditions in mildclimate area. Hence, measurements on energyreduction of heating system with ERV employed in an office building were executed with actual condition in winter season. From the measurement results, use of ERV reduced heat pump heating systems' energy consumption by approximately 30%. Heating load due to ventilation was reduced by 62%.