臺灣博碩士論文加值系統

本研究主要使用燃油溫度控制系統裝設於火花式內燃機引擎，探討燃油溫度
對輸出動力性能與廢氣排放之影響，其中利用熱電晶片電能轉換能量之方法，透過
鋁製油冷頭使針對燃油進行能量交換，形成一個燃油溫控循環，用以提高燃油溫度
提早形成燃料霧化，輔助燃燒完全。本實驗將結果與使用常溫下燃油之引擎系統進
行比較，探討燃油溫度差異對內燃機引擎動力性能與廢氣排放之影響。
由本文結果可知，添加本研究裝置對本實驗之影響為:
1. 燃油溫度增加，可以提升引擎的馬力，但當引擎轉速提高時，則影響程度
減少。
2. 燃油溫度增加，HC和CO排放量下降，且在A/F=13(經濟空燃比)影響最為明
顯，然而當引擎轉速的提高，HC的排放影響程度會減少。
3. 燃油溫度增加，則於高空燃比情況下，會降低NOx排放量，但於低空燃比
情況下，則NOx排放量增加。

The present study focuses on the installation of a fuel temperature control system in
a spark-ignition internal combustion engine to investigate the influence of fuel
temperature on output power performance and exhaust emissions. The method employed
involves utilizing thermoelectric chips to convert electrical energy into thermal energy,
facilitating energy exchange in the fuel through an aluminum oil cooler head. This creates
a fuel temperature control cycle aimed at promoting early fuel atomization for improved
combustion efficiency. A comparison is made between the results obtained using the
proposed system and a conventional fuel system operating at ambient temperature to
explore the effects of fuel temperature variation on the power performance and exhaust
emissions of the internal combustion engine
The findings of this study indicate the following impacts of implementing the
proposed device:
1. Increasing fuel temperature can enhance engine horsepower, but the degree of
Impact decreases as engine speed increases.
2. Increasing fuel temperature reduces HC and CO emissions, with the most
significant effect observed at an A/F ratio of 13 (stoichiometric ratio). However,
the impact on HC emissions decreases with increasing engine speed.
3. Increasing fuel temperature decreases NOx emissions under high air-fuel ratio
conditions, but increases NOx emissions under low air-fuel ratio conditions.

目錄
摘要 i
ABSTRACT ii
誌謝 iv
目錄 v
表目錄 viii
圖目錄 x
第一章 緒論 1
1.1 研究動機與目的 1
1.2 研究背景 2
1.2.1 液化石油氣(Liquefied Petroleum Gas,LPG)相關文獻探討 2
1.2.2 汽油內燃機相關文獻探討 3
1.2.3 柴油內燃機相關文獻探討 4
1.3 研究方法 6
1.4 研究內容架構 8
1.5 研究限制 10
第二章 基本原理 11
2.1 熱電晶片(Thermoelectric Chips,TEC) 11
2.2 內燃機原理 13
2.2.1 奧圖循環 13
2.2.2 馬力分析 14
2.2.3 扭力分析 15
2.2.4 廢氣分析 15
2.2.4.1 氮氧化物(NOx) 15
2.2.4.2 碳氫化合物(HC) 16
2.2.4.3 一氧化碳(CO) 16
2.2.4.4 機車排放標準規範 17
2.3 空氣與燃料混合原理 19
2.3.1 空燃比分析 19
2.3.2 空燃比對內燃機性能與燃料消耗分析 19
2.3.3 空燃比對內燃機排放廢氣分析 21
第三章 研究內容與方法 22
3.1 實驗架構介紹 22
3.2 燃油溫度監控系統 23
3.2.1 燃油溫度控制裝置 23
3.2.2 燃油溫度量測裝置 26
3.2.3 燃油溫度控制條件設定 28
3.3 實驗設備 29
3.3.1 實驗機車 29
3.3.2 aRacer RC Super2全取代EFI噴射電腦 32
3.3.3 Dynostar D50 ECB底盤動力計 34
3.3.4 EF-306EN廢氣分析儀 36
3.4 實驗方法 38
第四章 實驗結果與分析 40
4.1 動力性能分析 40
4.1.1馬力結果分析 40
4.1.2扭力結果分析 45
4.2 廢氣排放分析 49
4.2.1 HC排放 49
4.2.2 CO排放 53
4.2.3 CO2排放 57
4.2.4 NOx排放 61
第五章 結論與建議 65
5.1 結論 65
5.2 建議 66
第六章 參考文獻 67

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