典型住房一氧化碳外洩濃度場計算

Numerical Analysis of the Concentration Field of CO in the Typical Housing

涂信源(Hsin-Yuan Tu)

指導教授 ： 林誠興

元智大學/工程學院/機械工程學系/碩士(2002年)

摘要

由於人口密度增加，在有限的居住環境下，住的生活空間相對的減少，人們為了在追求較舒適的居家生活，部分家庭將熱水器安裝於前、後陽台或室內，且因宵小橫行並將陽台裝設防盜窗，形成一密閉空間，致常因熱水器燃燒不完全產生一氧化碳及室內通風不良的狀況下，發生室內人員中毒死亡的悲劇。本研究係利用廣為流體力學及數值研究（CFD）專家所使用的套裝軟體PHOENICS，建立一套數值模型來模擬一般典型住房矩形區間中，有CO污染源時，在各參數的變化下之流場及濃度場的暫態結構，以探討矩形區間內點污染源污染物之擴散情形，以取代實地、實物的實驗方式取得實驗數據，節省大量人力、物力、時間及金錢。其結果希望能有效地運用於實物模擬上，提供空調系統、排煙系統、清淨設備等設計人員設計時之參考，以改善通風效率，減少意外事件發生，進而解決室內環境品質問題，使得人們有乾淨的生活空間，提升人類的生活品質。

關鍵字

數值模擬 ； 一氧化碳 ； 濃度

並列摘要

Owing to the increasing of population, the living space is decreased comparatively under the limit environment. To obtain the larger indoor space, people often remodel their outdoor area, and then, not intentionally, isolate the bathing water heater indoors. This situation always caused people poisoned by CO, because of the bad ventilation in house and the incomplete burning of the gas, especially in winter. This study used the software Phoenics, which was well applied by CFD experts, to establish a numerical model for simulating the flow and CO concentration field in a typical rectangular housing area. This research could be applied effectively in the real housing, offer the useful information in designing the air condition, ventilation, and air cleaning systems. Other uses of the model are to increase the overall efficiency of ventilation, and decrease the accident and improve the quality of living.

並列關鍵字

PHOENICS ； Numerical

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