作为提高能效的最具成本效益的方法之一，试运行在实现建筑节能目标方面发挥着重要作用。本文采用改造和优化系统控制和运行的方法，对一栋既有建筑进行了节能目标调试的具体案例研究。案例研究现场是一家总面积为1212940平方英尺（112685平方米）的制造厂。本案例研究的工作范围包括四台1200吨（4219千瓦）冷水机组的冷冻水系统、两台70000磅/小时（31751kg/小时）蒸汽锅炉的供暖系统和三十四台空气处理机组。在对电厂进行了详细的巡视之后，确定了一系列现有系统运行的系统节能机会，如绕过建筑物的冷冻水、供应和回流冷冻水的混合、锅炉烟气中的高氧气水平，以及恒定风量系统的额外风机功耗等。 经过系统改造和先进控制策略的实施，系统的整体性能有了很大提高。系统优化前后的对比公用设施数据表明，考虑到经济影响，总耗电量减少15%，总耗气量减少7%，年总节约额为508558美元。本文介绍并讨论了系统信息、主要改造、先进的控制程序和运行数据。引用:ASHRAE Trans。，第118卷第。德克萨斯州圣安东尼奥2号

As one of the most cost-effective ways to improve energyefficiency, commissioning plays an important role in achievingbuilding energy savings goals. In this paper, a specific casestudy of energy saving-aimed commissioning was implementedin an existing building by using the methods of retrofittingand optimizing system control and operation. The casestudy site is a manufacturing plant with a gross area of1,212,940 sq. ft. (112,685 sq. meters). The work scope of thecase study covered the chilled water system with four 1200 ton(4,219 kW) chillers, heating system with two 70,000 lb/hr(31,751kg/hr) steam boilers, and thirty-four air handlingunits. After a detailed walk-through of the plant, a series ofsystem energy saving opportunities were identified for theexisting system operation such as chilled water bypassing thebuilding, blending of supply and return chilled water, highoxygen level in flue gas of the boiler, and extra fan powerconsumption for constant air volume systems and the like. Aftersystem retrofits and implementation of advanced control strategy,system overall performance was greatly improved. Thecompared utility data before and after the system optimizationindicate a total annual saving of $508,558 with the total electricityconsumption reduced by 15% and total gas consumptionreduced by 7%, considering the economic impact. In the paper,the system information, major retrofits, and advanced controlsequences and operational data were introduced anddiscussed.