当前位置: X-MOL 学术Build. Simul. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Fluid dynamic and thermal comfort analysis in an actual operating room with unidirectional airflow system
Building Simulation ( IF 5.5 ) Pub Date : 2020-10-21 , DOI: 10.1007/s12273-020-0713-3
Nicola Massarotti , Alessandro Mauro , Salahudeen Mohamed , Andrzej J. Nowak , Domenico Sainas

Air velocity and temperature distributions inside operating rooms (ORs) play a crucial role to reduce the risk of infections and to ensure adequate comfort conditions for patient and medical staff. In this work, the authors have developed a three-dimensional thermo-fluid dynamic model to simulate airflow and thermal comfort in an actual OR equipped with High-Efficiency Particulate Air (HEPA) filters. The model takes into account the presence of surgical lights, people and equipment within the room. An experimental campaign is carried out inside the actual OR to measure velocity and temperature, to be employed as boundary conditions for the numerical model. The experimental data have also been used to validate the numerical results. The validated model has been used to analyze the effects of human shape, thermal boundary conditions and buoyancy forces on the main thermal and fluid dynamic quantities in the OR. The thermal comfort is evaluated based on Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) indices. The results prove that the present experimental-numerical approach is useful to analyze and improve the thermal comfort conditions for medical staff and patient.



中文翻译:

具有单向气流系统的实际手术室中的流体动力和热舒适性分析

手术室(OR)内的风速和温度分布在降低感染风险和确保患者和医务人员有足够的舒适条件方面起着至关重要的作用。在这项工作中,作者开发了三维热流体动力学模型,以模拟配备有高效微粒空气(HEPA)过滤器的实际手术室中的气流和热舒适性。该模型考虑了房间内手术灯,人员和设备的存在。在实际的OR内进行实验活动以测量速度和温度,将其用作数值模型的边界条件。实验数据也已用于验证数值结果。经过验证的模型已用于分析人体形状的影响,热边界条件和浮力对OR中主要的热和流体动态量的影响。根据预测的平均投票(PMV)和预测的不满意百分比(PPD)指数评估热舒适性。结果证明,该实验数值方法对于分析和改善医护人员和患者的热舒适性条件是有用的。

更新日期:2020-10-21
down
wechat
bug