本研究首先建立一套可預測盛鋼桶預熱之溫度變化之熱傳模型，並據以評估將純氧燃燒導入盛鋼桶加熱爐之節能效益。研究以一15噸小型盛鋼桶加熱爐為標的，先針對空氣燃燒與純氧燃燒進行穩態模擬，聯立求解質量守恆、物種傳輸、能量守恆及熱傳導方程，分析不同燃料流量條件下，對盛鋼桶內壁平均溫度的影響，研究加熱時間對盛鋼桶效率的影響。並探討滲入空氣對系統的影響，同時也透過三維反應流模型研究幾何上的改變對純氧燃燒加熱效果的影響。結果顯示，相較於空氣燃燒，使用純氧燃燒具有更好的加熱效果。在相同蓄熱量與內壁溫度條件下，純氧燃燒可使用較低的燃料流量與成本來達到相同的加熱效果。而空氣滲入會使得盛鋼桶預熱效果變低，但即使滲入的空氣比空氣燃燒多，使用純氧燃燒仍有機會比空氣燃燒節能，而透過盛鋼桶加熱爐的幾何改造，可以使得滲入空氣比低於空氣燃燒，說明將純氧燃燒技術應用於盛鋼桶加熱爐系統，不僅可節省燃料，計入純氧之額外成本後，整體成本仍較空氣燃燒低廉。

The objective of our research was to assess the performance of oxy-combustion operation includes the influence of fuel flow rate, oxygen enhances, and air ingress. In this study, we take a 15-ton ladle furnace for the subject. Develop a one-dimensional model with chemical reaction and heat transfer. The result shows that compared with air-combustion, oxy-combustion get higher temperature of flue gas and ladle lining, shorter heating time, lower fuel supply, higher energy efficiency, and lower cost.

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