目的为保证中国国际应急医疗队(emergency medical team,EMT)的移动轻便性和良好医疗环境建设,以尽可能少的空调设备满足EM T帐篷医院供热制冷需求,并将空调单元设计流程化、模块化,给出具有广泛指导意义的暖通(heating,ventilation and...目的为保证中国国际应急医疗队(emergency medical team,EMT)的移动轻便性和良好医疗环境建设,以尽可能少的空调设备满足EM T帐篷医院供热制冷需求,并将空调单元设计流程化、模块化,给出具有广泛指导意义的暖通(heating,ventilation and air conditioning,HVAC)系统设计决策辅助系统。方法对成都市室外温度、太阳辐射等气象参数进行实测,根据热量平衡理论建立国际EMT传热模型,并根据相关标准对篷面材料的传热性能取值,最后利用能耗基因理论模拟其年负荷需求,同空调器功率相匹配,给出多顶帐篷为空调单元的HVAC系统设计。结果针对温带地区,帐篷医院的空调单元由1台空调器和3顶帐篷组成,裁剪现有系统设备11套,保证满足热环境需求下,科学减重暖通设备44%。结论该方案充分考虑了EM T帐篷热量平衡的共性与一带一路(the belt and road,B&R)沿线区域的气象差异个性,根据使用工况,对空调单元、HVAC系统进行模块化设计,科学指导医疗环境的后勤保障工作。展开更多
The external surface heat transfer coefficient of building envelope is one of the important parameters necessary for building energy saving design,but the basic data in high-altitude area are scarce.Therefore,the auth...The external surface heat transfer coefficient of building envelope is one of the important parameters necessary for building energy saving design,but the basic data in high-altitude area are scarce.Therefore,the authors propose a modified measurement method based on the heat balance of a model building,and use the same model building to measure its external surface heat transfer coefficient under outdoor conditions in Chengdu city,China at an altitude of 520 m and Daocheng city at an altitude of 3750 m respectively.The results show that the total heat transfer coefficient(h_(t))of building surface in high-altitude area is reduced by 34.48%.The influence of outdoor wind speed on the convective heat transfer coefficient(h_(c))in high-altitude area is not as significant as that in low-altitude area.The fitting relation between convection heat transfer coefficient and outdoor wind speed is also obtained.Under the same heating power,the average temperature rise of indoor and outdoor air at highaltitude is 41.9%higher than that at low altitude,and the average temperature rise of inner wall is 25.8%higher than that at low altitude.It shows that high-altitude area can create a more comfortable indoor thermal environment than low-altitude area under the same energy consumption condition.It is not appropriate to use the heat transfer characteristics of the exterior surface of buildings in low-altitude area for building energy saving design and related heating equipment selection and system terminal matching design in high-altitude area.展开更多
文摘目的为保证中国国际应急医疗队(emergency medical team,EMT)的移动轻便性和良好医疗环境建设,以尽可能少的空调设备满足EM T帐篷医院供热制冷需求,并将空调单元设计流程化、模块化,给出具有广泛指导意义的暖通(heating,ventilation and air conditioning,HVAC)系统设计决策辅助系统。方法对成都市室外温度、太阳辐射等气象参数进行实测,根据热量平衡理论建立国际EMT传热模型,并根据相关标准对篷面材料的传热性能取值,最后利用能耗基因理论模拟其年负荷需求,同空调器功率相匹配,给出多顶帐篷为空调单元的HVAC系统设计。结果针对温带地区,帐篷医院的空调单元由1台空调器和3顶帐篷组成,裁剪现有系统设备11套,保证满足热环境需求下,科学减重暖通设备44%。结论该方案充分考虑了EM T帐篷热量平衡的共性与一带一路(the belt and road,B&R)沿线区域的气象差异个性,根据使用工况,对空调单元、HVAC系统进行模块化设计,科学指导医疗环境的后勤保障工作。
基金supported by the National Natural Science Foundation of China(52078314)。
文摘The external surface heat transfer coefficient of building envelope is one of the important parameters necessary for building energy saving design,but the basic data in high-altitude area are scarce.Therefore,the authors propose a modified measurement method based on the heat balance of a model building,and use the same model building to measure its external surface heat transfer coefficient under outdoor conditions in Chengdu city,China at an altitude of 520 m and Daocheng city at an altitude of 3750 m respectively.The results show that the total heat transfer coefficient(h_(t))of building surface in high-altitude area is reduced by 34.48%.The influence of outdoor wind speed on the convective heat transfer coefficient(h_(c))in high-altitude area is not as significant as that in low-altitude area.The fitting relation between convection heat transfer coefficient and outdoor wind speed is also obtained.Under the same heating power,the average temperature rise of indoor and outdoor air at highaltitude is 41.9%higher than that at low altitude,and the average temperature rise of inner wall is 25.8%higher than that at low altitude.It shows that high-altitude area can create a more comfortable indoor thermal environment than low-altitude area under the same energy consumption condition.It is not appropriate to use the heat transfer characteristics of the exterior surface of buildings in low-altitude area for building energy saving design and related heating equipment selection and system terminal matching design in high-altitude area.
