本研究的目的是对大型翻修医院建筑进行精确的能量模拟，并对所研究医院建筑的节能措施（ECM）进行准确预测。医疗建筑一直是主要的能源消耗者，在商业建筑的年总能耗中占有重要地位。根据商业建筑能耗调查（CBECS），典型医疗建筑每平方英尺的总能耗约为典型办公建筑的两倍。因此，有必要提供准确可靠的能源模拟模型，以研究可能导致节能的不同改造策略的可行性。该案例研究是位于宾夕法尼亚州中部的一栋九层临床科学大楼，目前正处于三层建筑的最后阶段- 阶段机械系统改造，将空气分配系统从恒定风量（CAV）改为可变风量（VAV）系统。大楼的设施经理提供了有关大楼的详细信息，包括建筑平面图和计量的电能消耗数据。本研究使用EnergyPlus引擎，使用程序默认输入和修改输入，模拟医院大楼的能耗，并将月度和年度模拟结果与计量数据进行比较。比较表明，月度和年度模拟用电量与计量数据保持良好一致（月度平均14.5%，年度13.0%）。将CAV系统改为VAV系统后，无论是在默认车型还是改进车型上，都能显著降低加热和冷却能耗； 然而，修改后的模型预测加热和冷却节能分别为29%和15%，而默认模型预测加热和冷却节能分别减少43%和19%。引用:ASHRAE论文CD:2014 ASHRAE冬季会议，纽约

The purpose of this study is to perform accurate energy simulation for a major renovated hospital building and enable accurate prediction of energy conservation measures (ECMs) for the studied hospital building. Healthcare buildings have been major energy consumers with a significant contribution to the total annual energy consumption in commercial buildings. Based on Commercial Building Energy Consumption Survey (CBECS), the total energy used by a typical healthcare building per square-foot is about two times the use of a typical office building. Therefore, there is a need to provide accurate and reliable energy simulation models to study feasibility of different renovation strategies that could lead to energy savings. The case study is a nine-story clinical science building located in Central Pennsylvania that is currently going through the final stage of a three-phase mechanical system renovation where the air distribution system is changed from a constant air volume (CAV) to a variable air volume (VAV) system. The building’s facility manager provided detailed information about the building, including building plans as well as metered electric energy consumption data. This study simulates the energy consumption of the hospital building using EnergyPlus engine with the program default inputs and modified inputs, as well as compares the monthly and annual simulated results with the metered data. The comparisons show that the monthly and annual simulated electricity consumptions remain within a good agreement (14.5% average monthly and 13.0% annual) with the metered data. Changes of CAV to VAV systems had noticeable savings on the heating and cooling energy consumptions in both default and modified models; however, modified model predicts 29 % and 15% heating and cooling energy savings, respectively, compared to the default model that predicts 43% reduction in heating and 19% reduction in cooling energy savings.