외기냉방을 이용한 제습증발냉각기반 전외기 공조시스템 적용성 실증

Abstract

The main purpose of this paper was to investigate the free-cooling thermal performance of a desiccant and evaporative cooling-assisted-100% outdoor air system (LD-IDECOAS) via experimental measurements in a pilot system. The major componentsof LD-IDECOAS are cooling tower, indirect evaporative cooler, direct evaporative cooler as a free-cooling system. The thermal performance of the system is investigated under hot and humid climatic condition via installed pilot system. The pilot system of the LD-IDECOAS was installed on a office building and 42m2 room area. The automatic control and monitoring system are also set up on the pilot system. The cooling performance of free-cooling system can be indicated by effectiveness, and it is obtained by experimental data of dry-bulb temperature, relative humidity, and flow rate of air at each measurement location.