The energy performance of a cooling system integrated in the horizontal covering of a building shell for application in the air-conditioning of indoor environments was determined. At night the system uses radiative thermal exchange with the sky for the cooling of a water flow rate that flows in a network of pipes which are embedded on the external side of the horizontal covering. The cooled water flow rate is gathered in a tank which supplies the radiant floor system in an environment for the removal of part of the sensible loads. The same system embedded in the building covering is used during the day for cooling of the same roof by means of a water flow rate which transfers thermal energy to a hot tank, which is used to provide part of the summer requirements for the production of domestic hot water. The energy performance of the building-plant system was determined with the TRNSYS 17 simulation code. In the investigation the climatic data regarding infrared solar irradiation, the outdoor air temperature and wind velocity recorded at the actinometrical station of the Department of Mechanical Engineering of the University of Calabria (Lat. 39,3° - Long.16,2°) were used.
ENERGY PERFORMANCES OF AN INTEGRATED COOLING SYSTEM IN BUILDINGS WHICH USE RADIATIVE THERMAL EXCHANGE WITH THE SKY
OLIVETI, Giuseppe Antonio;ARCURI, Natale;Bruno R;DE SIMONE, Marilena
2011-01-01
Abstract
The energy performance of a cooling system integrated in the horizontal covering of a building shell for application in the air-conditioning of indoor environments was determined. At night the system uses radiative thermal exchange with the sky for the cooling of a water flow rate that flows in a network of pipes which are embedded on the external side of the horizontal covering. The cooled water flow rate is gathered in a tank which supplies the radiant floor system in an environment for the removal of part of the sensible loads. The same system embedded in the building covering is used during the day for cooling of the same roof by means of a water flow rate which transfers thermal energy to a hot tank, which is used to provide part of the summer requirements for the production of domestic hot water. The energy performance of the building-plant system was determined with the TRNSYS 17 simulation code. In the investigation the climatic data regarding infrared solar irradiation, the outdoor air temperature and wind velocity recorded at the actinometrical station of the Department of Mechanical Engineering of the University of Calabria (Lat. 39,3° - Long.16,2°) were used.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
