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室內(nèi)溫度對(duì)空氣質(zhì)量的影響.zip

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室內(nèi)溫度對(duì)空氣質(zhì)量的影響,包括開(kāi)題報(bào)告,任務(wù)書(shū),ppt,翻譯原文和譯文摘要iabstractii1引言12 實(shí)驗(yàn)方法22.1實(shí)驗(yàn)原理22.2 實(shí)驗(yàn)原料和設(shè)備42.3 實(shí)驗(yàn)條件52.4 環(huán)境測(cè)試艙甲醛濃度測(cè)定72.5 污染源散發(fā)率的測(cè)定73 結(jié)果與討論93.1 板材中甲醛散發(fā)率模型93.1.1 散發(fā)率模型測(cè)定93.1.2 溫度對(duì)散發(fā)率模型的影響1...
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包括開(kāi)題報(bào)告,任務(wù)書(shū),ppt,翻譯原文和譯文

摘要 I
Abstract II
1引言 1
2 實(shí)驗(yàn)方法 2
2.1實(shí)驗(yàn)原理 2
2.2 實(shí)驗(yàn)原料和設(shè)備 4
2.3 實(shí)驗(yàn)條件 5
2.4 環(huán)境測(cè)試艙甲醛濃度測(cè)定 7
2.5 污染源散發(fā)率的測(cè)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(cè)定 9
3.1.2 溫度對(duì)散發(fā)率模型的影響 12
3.2 室內(nèi)甲醛濃度預(yù)測(cè)模型 17
3.2.1 甲醛濃度預(yù)測(cè)模型 17
3.2.2 預(yù)測(cè)模型的分析與求解 19
3.2.3 甲醛濃度預(yù)測(cè)模型的驗(yàn)證 19
4 結(jié)論 20
5 參考文獻(xiàn) 21
致謝 24


室內(nèi)溫度對(duì)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(wèn)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(duì)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(xiàng)目之一,其濃度是衡量IAQ的重要指標(biāo),本實(shí)驗(yàn)旨在研究溫度對(duì)室內(nèi)甲醛濃度——時(shí)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(cè)試艙動(dòng)態(tài)平衡法測(cè)定艙內(nèi)甲醛散發(fā)率隨時(shí)間的變化。采用酚試劑比色法測(cè)定甲醛即時(shí)濃度,換算得到甲醛即時(shí)散發(fā)率,繪制散發(fā)率——時(shí)間曲線,得到甲醛散發(fā)率隨時(shí)間的衰減模型(R=f(t)),并研究溫度因子對(duì)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(dǎo)甲醛濃度衰減模型(C=f(t))。
實(shí)驗(yàn)結(jié)果表明:1)甲醛散發(fā)率一般會(huì)隨時(shí)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(shí)驗(yàn)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(gè)污染源存在時(shí),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