0000000001192978
AUTHOR
Paolo Valdiserri
L'integrazione degli impianti ad aria con soffitti radianti nelle degenze ospedaliere: un caso studio per la valutazione delle condizioni di benessere termico
Nel presente lavoro vengono descritti i risultati di una ricerca sperimentale, condotta in periodo estivo, sulle prestazioni di comfort termico in degenze ospedaliere climatizzate mediante impianti ad aria primaria e sistemi radianti a soffitto. La ricerca sperimentale, sviluppata grazie alla collaborazione tra le Università di Ferrara, Bologna e Palermo ed una azienda produttrice di sistemi radianti a soffitto, è stata condotta all’interno di due stanze di degenza presso il reparto Maternità dell’Ospedale Maggiore di Bologna. La scelta del luogo è motivata dal fatto che è sempre maggiore l’attenzione della letteratura verso gli standard di comfort che devono essere garantiti nell’ambito os…
Thermo-hygrometric comfort in hospital rooms conditioned by means of a primary air system and ceiling radiant panels
In this work the first results of experimental research are described, which began in the 2006 summer season and is still underway, on the performance of a primary air system integrated with radiant ceiling panels that runs in the hospital rooms in the maternity ward of the Maggiore Hospital of Bologna. The choice of this kind of environment is based the fact that there is more and more attention toward literature on comfort standards that must be guaranteed in the hospital environment, due to the presence of typically weak users, both from the clinical and psychological point of view. The performance of the air conditioning system is taken into account in relation to the conditions of comf…
Experimental determination of natural air ventilation rates based on CO2 concentration
This study reports the first results of a survey carried out by the authors on a hall used for conferences, training courses, seminars, and aimed to determine the correlation between the concentration of CO2 and the number of air changes only through natural ventilation. The assessment of ventilation rates was based on the knowledge of the indoor and outdoor CO2 concentrations and of the number of people in the hall. As it is known, the CO2 concentrations can be used as an index for the number of people present in a room and can be evaluated as a function of time by using the Meckler equation in steady-state conditions. In that case it is however necessary that some restrictive hypotheses a…