Method of Testing Indoor Air Cleaners

中山醫學大學機構典藏 CSMUIR > 健康管理學院 > 職業安全衛生學系暨碩士班 > 研究計劃 > Item 310902500/2975

Please use this identifier to cite or link to this item: https://ir.csmu.edu.tw:8080/ir/handle/310902500/2975

Title:	Method of Testing Indoor Air Cleaners 室內空氣清淨機測試方法評估
Authors:	賴全裕;陳志傑 Lai, Chuan-Yu;Chen, Chih-Chieh
Contributors:	中山醫學大學職業安生衛生學系
Keywords:	空氣清淨機、過濾、靜電集塵器、臭氧、室內空氣品質 Air cleaner, Filtration, Electrostatic precipitator, Ozone, Indoor air quality
Date:	2005
Issue Date:	2010-11-29T05:20:05Z (UTC)
Abstract:	根據歐美地區的研究指出，在現代化的國家中，每人每天約有90 %的時間是在室內的空間活動，而室內空氣污染物的濃度常常是室外的數倍甚至於有可能達百倍之高，而對於小孩、老人以及一些患有慢性疾病的病人來說，相對地必須花更多的時間於室內環境（包括學校、醫院、住家等等），因此室內空氣品質是一個不容忽視的問題。然而相當多民眾均只認知室外空氣污染會對人體健康造成危害，卻忽略室內空氣污染也可能造成更顯著影響之事實。美國環境保護署及其諮詢委員會，常年以來一直都將室內空氣污染列為對公共衛生危害最大的前五個環境因子。除了污染源控制與通風之外，室內空氣清淨機是去除健康危害之氣懸微粒最有效的方法之一。依據空氣清淨機收集氣懸微粒的方式，一般市售產品可分為以下幾類：機械式過濾集塵、電子式靜電集塵、以及離子產生器，此外也有將上述兩種方法一齊使用的混合式集塵機，一般的室內空氣清淨機大都是可攜帶式，其大小與集塵效能有相當大的差異。美國家電製造協會與美國國家標準局，共同擬定ANSI/AHAMAC-1-2002以評估小型室內空氣清淨機的性能良窳。擬定乾淨空氣釋放率(CleanAir Delivery Rate, CADR)為測試空氣清淨機有效處理風量，也是目前歐美廠商較廣泛採用的空氣清淨機性能指標。本研究將探討ANSI/AHAMAC-1-2002所訂定測試標準的合理性，包括測試微粒選擇合理性、微粒粒徑量測儀器適用性。實驗中主要微粒量測儀器將以掃瞄式電移動度粒徑分析儀（涵蓋粒徑範圍為0.02至0.8微米）及氣動粒徑分析儀（涵蓋粒徑為0.8至30微米）進行，以蒸發凝結式單一粒徑微粒產生器產生所需之挑戰氣膠，以Am-241中和挑戰氣膠至波茲曼分佈。並以傾斜式壓力計進行空氣阻抗或壓降的變化監測。本研究最終在評估各空氣清淨機之CADR 值與其他指標（如：能量、噪音、氣狀污染物移除等）之總和效率，以擬定出真正評估室內空氣清淨機效能的指標，以提供消費者一選擇參考依據。 Studies from America and Europe have shown that people stay indoors more than 90 % of a day. With more energy-efficient building construction and less ventilation with outside air, indoor air quality can suffer. The indoor air quality has found to be worst 2-5 times, or even more 100 times than outdoor. The USEPA and its Science Advisory Board have ranked indoor air pollution among the top five environmental risks to public health. However, most people only concern about outdoor air pollution but do not aware the adverse health effect from the indoor air. Removing airborne particles may reduce allergic reactions of people suffering from asthma, hay fever, sinusitis and other respiratory problems. In addition to the Heating, Ventilation and Air Conditioning (HVAC) system, air cleaners may be one part of the solution. For this reason, indoor air cleaners are used to control and reduce the indoor air pollution. Air cleaners are usually classified for removing particles of various sizes from the air. There are th e general types of air cleaners on the market: mechanical filters, electronic air cleaners, and ion generators. Hybrid units, using two or more of these removal methods are also available. Most of the indoor air cleaners are portable, vary in size and effectiveness in pollutant reduction capabilities. They range from relatively ineffective table-top units to larger, more powerful console unit. American National Standards Institute and Association of Home Appliance Manufacturers have normalized the ANSI/AHAMAC-1-2002 to evaluate the performance of commercially available indoor air cleaners. However, the Clean Air Delivery Rate (CADR) can only show the initial performance of these cleaners. The pressure drop caused by filter loading is not included in the estimation. Therefore, the study built a small room similar to the ANSI/AHMAAC-1-2002 air cleaner certification chamber to measure the CADR of the commercially available indoor air cleaners and make comments to ANSI/AHMA AC-1-2002. The size of test field, ins uments using, energy consuming, noise, the concentration decay of gaseous pollutions, the service time of filter, the pressure drop after filter loading were all evaluate in the measurements. A Condensation Monodisperse Aerosol Generator (CMAG) was used to generate challenge aerosol particles. A radioactive source, Am-241, was used to neutralize the challenge particles to theBoltzmann charge equilibrium. The main aerosol size-spectrometers was a Scanning Mobility Particle Sizer (working size range 20 nm ~ 0.8 .mu.m) and an Aerodynamic Particle Sizer (0.8 ~ 30.mu.m). An inclined manometer was used to monitor the pressure drop across the air cleaners.
URI:	https://ir.csmu.edu.tw:8080/handle/310902500/2975
Appears in Collections:	[職業安全衛生學系暨碩士班] 研究計劃

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File	Description	Size	Format
賴全裕.pdf	國科會計劃報告書	413Kb	Adobe PDF	1912	View/Open

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