요약2 |
A wardroom in healthcare facilities need to be designed to provide appropriate ventilation rate and high levels of thermal comfort in order to achieve healing environment for patients. Therefore, HVAC system need to be carefully selected for improved indoor environment in wardrooms. In addition, the system should be designed so as to reduce energy consumption, because a large amount of energy is consumed to perform various functions of healthcare facilities. In this context, active chilled beam (ACB) system is regarded as suitable for wardrooms because it operates with much less air flow rate thanks to induction effect by primary air, which results in reduced ventilation energy as well as high thermal comfort. Therefore, this study was conducted to evaluate thermal comfort in a wardroom equipped with ACB system through mock-up tests. As the supply air flow rate significantly affects not only ventilation energy but also indoor environment, thermal comfort with different supply air flow rate was evaluated. Based on the results, the operation condition of ACB system was suggested to ensure proper ventilation rate and thermal comfort. The results showed that the minimum outdoor air flow rate, 2ACH, can satisfy not only ventilation rate and thermal comfort criteria in the wardroom. |