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首页> 外文期刊>Building and Environment >Fine particulate matter control performance of a new kind of suspended fan filter unit for use in office buildings
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Fine particulate matter control performance of a new kind of suspended fan filter unit for use in office buildings

机译：用于办公大楼的新型悬浮风扇过滤器单元的细颗粒物控制性能

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Fine particulate matter (PM2.5) pollutants threaten the productivity and health of workers in office buildings. Additional indoor filtration cleaners are needed for PM(2)(.5 )control in most cases. Portable air cleaners (PACs) designed for household use may not be applicable to relatively large office spaces because of their low clean air delivery rate (CADR) and energy inefficiency. We developed a new kind of suspended fan filter unit (SFFU) for use in office buildings. A polypropylene (PP) filter or intense field dielectric (IFD) filter was installed in the SFFU for filtration. We compared the PM2.5 control performance of the SFFU with the performance of five kinds of popular PACs on the market. The CADRs generated by the SFFU (360-650 m(3)/h) were 1.2-3.9 times the rates of the PACs (165-300 m(3)/h). The average energy efficiency (CADR/electrical power) of the SFFU with a PP filter (15.8 (m(3)/h)/W) was 2.0 times higher than that of the PACs (5.3 (m(3)/h)/W). The energy efficiency was increased by another 9% with the use of an IFD filter. The long-term performance of the IFD filter may be unsatisfactory at the current stage. After half a month of operation (8 h per day), the filtration efficiency of the IFD filter in the SFFU dropped to 80-85%. After a month of operation, the efficiency dropped further to 60-65%. The results of this study are particularly significant for commercial spaces (office buildings, shopping malls, etc.) where high CADRs are needed and where energy performance is more critical than in consumer applications.
机译：细颗粒物（PM2.5）污染物威胁着办公楼工人的生产力和健康。在大多数情况下，需要额外的室内过滤清洁剂来控制PM（2）（。5）。专为家庭使用而设计的便携式空气净化器（PAC）可能由于其清洁空气输送率（CADR）低和能源效率低而不适用于相对较大的办公室。我们开发了一种新型的悬浮式风扇过滤器单元（SFFU），用于办公大楼。在SFFU中安装了聚丙烯（PP）过滤器或强电场电介质（IFD）过滤器以进行过滤。我们将SFFU的PM2.5控制性能与市场上五种流行的PAC的性能进行了比较。 SFFU（360-650 m（3）/ h）生成的CADR是PAC（165-300 m（3）/ h）速率的1.2-3.9倍。带PP过滤器的SFFU的平均能效（CADR /电功率）（15.8（m（3）/ h）/ W）是PAC的平均能效（5.3（m（3）/ h）/ W）。使用IFD滤波器，能效又提高了9％。在当前阶段，IFD滤波器的长期性能可能无法令人满意。运行半个月（每天8小时）后，SFD中IFD过滤器的过滤效率下降到80-85％。运行一个月后，效率进一步下降到60-65％。这项研究的结果对于需要高CADR且能源性能比消费类应用更为关键的商业空间（办公楼，购物中心等）特别重要。

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