電噴霧系統對微粒移除之研究

The Study of Particles Removal by Electrospray Technology

李宛諭(Wan-Yu Lee)

指導教授 ： 林文印

國立臺北科技大學/工程學院/環境工程與管理研究所/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00458

摘要

本研究以電噴霧系統產生帶電液滴，使其與電中性之酒石酸鉀鈉微粒碰撞混合，改變微粒之電性，最後以高電壓平行板收集；並探討電噴霧溶液(NaCl solution、Buffer solution)特性、液滴特性以及液滴分布情形。採樣後，將液滴與微粒的帶電量，經由瑞利荷電極限推導、靜電氣膠器測量、移除效率換算等三種計算方法，可得到依以上三種計算所得到的帶電量的值，並針對這三個值進行比較。在移除效率的部份，可分為兩個部份，第一部分是wall lose，第二部份是以高壓電收集板，微粒在這兩個階段都可以被去除，而去除的計算方式，可以各粒徑之移除效率與總體積移除效率兩種方式來計算。在某些參數之下，以Buffer solution為例，移除效率可達60%以上。

關鍵字

電噴霧技術 ； 毛細管 ； 噴霧溶液 ； 接地極板間距 ； 收集板電壓

並列摘要

The charged droplets are produced by the Electrospray system in this study, then make the neutralized PST particles and charged droplets collision and mixed. Then the characters of neutralized PST particles are changed, after this, particles are collected by the high voltage parallel collectors. The solutions and droplets characteristics and the size distribution are discussed in Chapter 4. After sampling, the electric charges are calculated by three methods: calculation by the Rayleigh limit, sampling by the Aerosol Electrometer and conversion by the removed rate, then getting three values, and comparing these values. The removal can be separated into two parts, the first is “wall lose” removal, and the second is “high voltage collection” removal. Particles are removed by the mechanisms, the removed rates are calculated by size distribution and total volume. In some parameters, the Buffer solution as a sample, the total removed rate is higher than 60%.

並列關鍵字

the Electrospray technology ； capillary ； spraying solution ； the distance of the ground ； the high voltage of the collector

參考文獻

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