Abstract
Kita Ward Office Building was designed as an energy-efficient model building of Nagoya City. It was decided by the city government to investigate the actual performance from the viewpoint of energy as well as environment in order to feed-back the knowledge to the future design policies. Present paper introduces the building design at first, both architectural and mechanical, as well as energy conservation technologies applied. It also includes facts how the measures and analyses were made applying the additional installation of sensors and data aquisition center. Latter half of it is devoted to develop the analyses of actual performance of principal energy-efficient equipments, that is gas-fired double-effect absorption machine, variable volume pump/fan systems and total heat exchangers between outside air and exhaust air. Results show that the performance of variable volume system saved fan and pump energy by approximately 35% in the winter, and the total heat exchangers had almost the same efficiency as the manufacturer's catalogue data, but the COP of the absorption machine has been a little lower than the predicted value from the factory test.
