無動力煙灰缸研發

Abstract

許多的研究中已調查出香煙燃燒的產物會對健康造成影響。過去的煙害防治上，主要是以預防抽煙、減少吸入及社會團體禁煙宣導為主，而技術導向的控制方式並不那麼受到關注。故此研究最終目的在發展或改善市面上現有的空氣清靜設備以去除旁流煙。 本研究利用旁流煙產生器，混合測試腔及採樣裝置構成系統去測得旁流煙的化學及物理特性。採樣裝置包括利用Q-TRAK偵測CO及CO2、利用PID偵測VOCs、使用濾紙收集微粒以求得質量濃度、並用type K的熱電偶測得香煙燃燒時的溫度。 實驗結果顯示氣流流量減少，無論是CO，CO2，VOCs，particle的排放因子和排放速率以及香煙燃燒時產生的溫度都會減少，而且香煙燃燒會較為完全。另外，煙灰缸材質的導熱係數對於氣膠及氣體的產生扮演著重要的角色，故設計擺放香煙的煙灰缸的凹槽是非常關鍵的。香煙燃燒速率會隨著煙灰缸凹槽接觸面的增加而減少，直到沒有足夠的熱量而熄滅。

Numerous studies have been conducted to investigate the health effect. Historically, smoking-control efforts have focused on smoking prevention and cessation through individual and group counseling efforts. Compared to the policy-oriented control, the technology-oriented control measures do not receive as much attention as it deserves. Therefore, the ultimate goal of this work was to develop or improve the currently commercially air cleaners designed for removing sidestream cigarette smokes. An experimental system, composed of a sidestream cigarette smoke generator, a mixing and test chamber, and a sampling train, was set up to investigate the chemical and physical characteristics of the sidestream cigarette smokes. Q-TRAK were used to monitor the concentrations of CO and CO2; PID was used to measure the concentration of VOCs. Filter samples were collected for estimating the mass concentration. We also measured the temperature of cigarette burning tip, by using a homemade thermocouple with type K. The results showed that emission factors and emission rates of CO, CO2, aerosol mass concentration, VOCs, the surface temperature of the smoldering cone all decreased, and cigarettes would burn completely with decreasing passing air flow. The thermal conductivity of the ashtray played an important role in both aerosol and gas emission. The design of the trench holding the cigarette was particularly critical. The cigarette smoldering rate decreased with increasing contact area, until the combustion ceased due to not enough heat generation.