“通风系统是商业烹饪操作不可或缺的组成部分。它们主要用于排出商业厨房的热量、烟雾和气味，以便为商业餐饮服务机构的工人和顾客提供舒适的环境。大多数通风系统都配备了油脂过滤器，用于防止通风管道发生火灾最近，润滑脂过滤器制造商设计了装置，以便在排放废水之前去除颗粒物和冷凝蒸汽。对于这些设备在去除烹饪废水中的油脂方面的有效性，业内存在相当大的差异。测试结果表明，去除效率的范围很广，主要取决于测量所用的测试方法（MOT）。 为了对油脂去除效率进行准确且可重复的评估，必须制定并证明标准化的测试方法。一旦获得批准，该方法将建立一个国家认可的测量工具，用于评估竞争性油脂去除技术。作为这一过程的初始步骤，加利福尼亚大学、河滨、伯恩斯大学环境研究与工程技术中心（CE-CERP）在明尼苏达大学（U-OFM）的协助下，开发了一种油脂发生器技术，该技术可以模拟实际的烹饪排放物，包括颗粒物质和可冷凝的油脂蒸气。联合小组评估了可能的方法，设计并开发了一个原型，并评估了原型在模拟烹饪废水方面的有效性。 这一成功的第一步预计将导致第二阶段的工作，在该阶段中，油脂发生器将用于实验室间的比较，并用于评估几种不同类型的油脂去除系统。"

"Ventilation systems are integral components of commercial cooking operations. They are primarily used to exhaust heat, smoke, and odors from commercial kitchens in order to provide a comfortable environment for workers and patrons in commercial food service establishments. Most ventilation systems are equipped with grease filters that are used to prevent fires from occurring in ventilation ducts. Recently, manufacturers of grease filters have designed units to remove particles and condensed vapors prior to discharging of the effluent.There is considerable discrepancy in the industry as to the effectiveness of these devices in removing grease from cooking effluents. Test results show a wide range of removal efficiencies, depending mainly on the method of test (MOT) used for measurement.To provide an accurate and repeatable assessment of grease removal efficiencies, a standardized test method must be developed and demonstrated. Once approved, the method will establish a nationally recognized measurement tool for evaluating competing grease removal technologies.As an initial step in this process, the University of California, Riverside, Bourns College of Engineering-Center for Environmental Research and Technology (CE-CERT) with assistance from the University of Minnesota (U ofM), developed a grease generator technology that can simulate actual cooking emissions, including particulate matter and condensable grease vapors. The combined team evaluated possible approaches, designed and developed a prototype, and evaluated the prototype with regard to effectiveness in simulating cooking effluent. This successful first step is expected to lead to a second phase of work, where the grease generator will be used in inter-laboratory comparisons and in evaluation of several different types of grease removal systems."