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摘要 I
Abstract II
1引言 1
2 實驗方法 2
2.1實驗原理 2
2.2 實驗原料和設(shè)備 4
2.3 實驗條件 5
2.4 環(huán)境測試艙甲醛濃度測定 7
2.5 污染源散發(fā)率的測定 7
3 結(jié)果與討論 9
3.1 板材中甲醛散發(fā)率模型 9
3.1.1 散發(fā)率模型測定 9
3.1.2 溫度對散發(fā)率模型的影響 12
3.2 室內(nèi)甲醛濃度預(yù)測模型 17
3.2.1 甲醛濃度預(yù)測模型 17
3.2.2 預(yù)測模型的分析與求解 19
3.2.3 甲醛濃度預(yù)測模型的驗證 19
4 結(jié)論 20
5 參考文獻 21
致謝 24


室內(nèi)溫度對空氣質(zhì)量的影響

摘 要

裝修污染已成為人們最關(guān)注的室內(nèi)環(huán)境污染問題，鑒于室內(nèi)環(huán)境與人體健康的密切聯(lián)系，我們應(yīng)對室內(nèi)空氣質(zhì)量（indoor air quality， IAQ）予以重視。甲醛作為重要的污染項目之一，其濃度是衡量IAQ的重要指標，本實驗旨在研究溫度對室內(nèi)甲醛濃度——時間規(guī)律的影響。
在不同溫度（14℃、18℃、23℃）條件下，利用小型環(huán)境測試艙動態(tài)平衡法測定艙內(nèi)甲醛散發(fā)率隨時間的變化。采用酚試劑比色法測定甲醛即時濃度，換算得到甲醛即時散發(fā)率，繪制散發(fā)率——時間曲線，得到甲醛散發(fā)率隨時間的衰減模型（R=f(t)），并研究溫度因子對散發(fā)率衰減模型的影響。在甲醛散發(fā)率衰減模型的基礎(chǔ)上推導甲醛濃度衰減模型（C=f(t)）。
實驗結(jié)果表明：1）甲醛散發(fā)率一般會隨時間的推移而降低；2）室內(nèi)甲醛濃度模型C=f(t)可以在散發(fā)率模型R=f(t)的基礎(chǔ)上得出。3）在保持其它實驗條件不變，隨著室內(nèi)溫度T的上升，污染源中甲醛的初始散發(fā)率R0增大，衰減系數(shù)k隨之增大；多個污染源存在時，甲醛初始濃度由散發(fā)率較高污染源決定，濃度衰減模型則散發(fā)率衰減速度較慢污染源決定。

關(guān)鍵詞：室內(nèi)空氣質(zhì)量(IAQ)；甲醛；溫度；散發(fā)率模型


The influence of temperature on the indoor air quality
Abstract
In recent years, decoration has become one of the most common causes for indoor pollution. The indoor environment influences human healthiness greatly, so we must pay attention to the indoor air quality (IAQ). Formaldehyde is an important item in all the indoor pollutants, and it is an eva luation index for the indoor air quality. This thesis is to study the temperature influence on the regular pattern of the formaldehyde concentration VS time.
The small environmental test chamber dynamic balance method is used to measure the regular pattern of the formaldehyde emission rate VS time under different temperatures (14℃, 18℃, 23℃). Formaldehyde immediate concentration is detected by phenol reagent spectrophotometry firstly, the immediate formaldehyde emission rate in the chamber calculated from the concentration secondly，the R-t curve is made and the formaldehyde emission rate VS time model (R=f(t)) is derived, then the temperature factor influence can be got. We can also obtain formaldehyde concentration VS time model (C=f(t)) from the formaldehyde emission rate model.
The experimental results show: 1) the formaldehyde emissions rate R will decrease with time. 2) the concentration model of formaldehyde C=f(t) can be derived from the emission model R=f(t); 3）the initial formaldehyde emission rate (R0) and decreasing coefficient are increasing with the temperature T rising. The initial formaldehyde concentration is decided by the polluting source with the higher emission rate, while the concentration attenuate model is decided by the polluting source with the lower emission rate.

Key words: indoor air quality (IAQ); formaldehyde; temperature; emission rate model