臺灣博碩士論文加值系統

燃氣中水分含量的多寡除了影響燃氣溫度，同時可能影響其排出後的透光率，本研究目的在以乾濕球溫度計的概念設計一用來量測高溫煙道氣體中水氣含量的系統，相較於傳統高溫煙氣濕度的量測需要複雜的設備，本論文使用的量測方法僅需兩支熱電偶溫度計 與一噴水霧化裝置，不論在操作或成本考量上均較傳統方法有利。

The amount of vapor contained in fuel gas affects not only the gas temperature,but also the smoke opacity. The paper is to design a system measuring the amount of vapor on the high-temperature flue gas with the idea of dry-wet bulb thermocouples. Comparing with the traditional hygroscopic method , we just need two thermocouples and an atomizing system on our measuring method. Using our method, it is more easy and cheaper.

第一章 緒論……………………………………………………..1
1-1前言…………………………………………………………..1
1-2文獻回顧……………………………………………………..4
1-3研究目的……………………………………………………..7
第二章 理論分析………………………………………………..8
2-1 溼度的定義………………………………………………….8
2-2 理論模式……………………………………………………11
2-2-1煙道乾濕球溫度理論模式……………………………….11
2-2-2吸濕法之理論公式……………………………………….15
2-2-3最大含水量計算法……………………………………….16
2-3 噴霧噴嘴的分析……………………………………………18
2-3-1起始噴霧粒徑分佈關係………………………………….18
2-3-2液滴蒸發模式…………………………………………….19
第三章 實驗設備與量測儀器……………………………….…22
3-1 乾濕球溫度法實驗設備…………………………………....22
3-1-1 燃燒爐體部分……………………………………………23
3-1-2 煙道部分…………………………………………………23
3-1-3 霧化液滴噴注系………………………………………….25
3-1-4 進氣及排氣部分………………………………………….26
3-1-5 溫度量測部分…………………………………………….27
3-2 吸濕法量測設備…………………………………...……….28
3-2-1水分採取部份……………………………………………..30
3-2-2氣體抽氣部份……………………………………………..31
3-2-3吸引流量測定部份………………………………………..31
3-2-4試劑及天平………………………………………………..32
第四章 實驗說明與操作方法 …………………………………34
4-1 實驗規劃…………………………………………………….34
4-2 實驗步驟…………………………………………………….35
4-2-1乾濕球溫度法量測步驟……………………………………35
4-2-2吸溼管法之實驗方法………………………………………35
弟五章 結果與討論……………………..……………………….38
5-1 燃燒時間的溼度變化……………….………………………38
5-2各參數對溼度量測的影響…………….…………………….39
5-2-1噴霧噴嘴的影響……………………..…………………….39
5-2-2噴嘴位置的影響……………………..……………………40
5-2-3噴嘴流量的影響………………………………………….43
5-3結論……………….……………………………….....44
參考文獻…………………………………………..…………….65

Masters, K., 1991, " Spray Drying Handbook," John Wiley, New
York.
Robert, Perry H. and Cecil, Chilton H., 1973, "Chemical Engineers'
Handbook," McGraw-Hill, New York.
Worrall, R. W., 1963, " Psychrometric Determination of Relative
Humidities in Air with Dry-bulb Temperatures Exceeding 212
℉," Humidity and Moisture, Chapman and Hall, New York.
Marshall, W. R., 1954, "Atomization and Spray Drying," American
Institute of Chemical Engineers, New York.
Ranz, W. E., and Marshall, W. R., 1952, "Evaporation from Drops -
Ⅰand Ⅱ," ASME Chemical Engineering Progress, Vol. 48, pp.
141-173.
Crowe, C. T., and Arnason, G., 1980, "Assessment of Numerical M-
odels for Spray-Drying," ASME Drying, Vol. 2, pp. 410-416.
Law, C. K., and Sirignano, W. A., 1977, "Unsteady Droplet Combu-
stion with Droplet Heating-Ⅱ：Conduction Limit," ASME Co-
mbustion and Flame, Vol. 28, pp. 175-186.
Prakash, S., and Sirignano, W. A., 1978, " Liquid Fuel Droplet Heat-
ing with Internal Circulation," ASME Int.J. Heat Mass Transfer,
Vol. 21, pp. 885-895.
Xianguo, L., and Tankin, R. S., 1987, " Droplet Size Distribution: A
Derivation of a Nukiyama-Tanawa Type Distribution Function,"
ASME Combust. Sci. and Tech., Vol. 56, pp. 65-76.
Bhatia, J. C., and Durst , F., 1989, " A Comparative Study of Some
Probability Distributions Applied to Liquid Sprays," ASME Int.
Conf. On Mech of Two-Phase Flows, ROC.
Beer, J. M., and Chigier, N. A., 1972, "Combustion Aerodynamic,"
Academic Press.
Law, C. K., 1982, "Recent Advances in Droplet Vaporation and Co-
mbustion," ASME Proceedings of Energy Combustion Science,
Vol. 8, pp. 171-201.
Evans, R. C., 1958, "High Temperature Evaluation of Wet and Dry
Bulb Ceramic Tube Psychrometric Assembly,"
Lijn, J., 1976, "Simulation of Heat and Mass Transfer in Spray Dry-
ing ," Centre for Agricultural Publishing and Documentation.
Wallis, G. B., 1969, "One Dimensional Two Phase Flow," Mcgraw-
Hall.
(八三)環署檢字第00543號公告，"管道排氣中粒狀污染物濃度
之測定方法"，民國八十三年三月十五日。