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The effect of additive addition to fuel with variations in preheating and water coolant on multi-cylinder diesel engine performance

Introduction

The effect of additive addition to fuel with variations in preheating and water coolant on multi-cylinder diesel engine performance. Analyze PTT fuel additive, preheating, and coolant effects on multi-cylinder diesel engine performance. Discover optimal torque and power with D2 mixture and specific coolant ratios.

Abstract

Diesel engines are essential for transporting heavy loads, requiring significant engine power. This study aims to evaluate the effect of adding PTT (diesel fuel conditioner) additives to Dexlite fuel, focusing on mixtures of D0, D1, and D2. Additionally, variations in fuel pre-heating and engine cooling system fluids are examined. This research employs an experimental approach with descriptive analysis. The findings indicate that the optimal torque occurs with the D2 mixture, achieving 136.57 N·m at 2267 rpm with standard coolant, 152.03 N·m at 2100 rpm with a 50%:50% fluid ratio, and 160.70 N·m at 2033 rpm with a 30%:70% fluid ratio, all without pre-heating. The optimal power values for the D2 mixture are 74.60 HP at 4600 rpm with standard fluid, 75.23 HP at 4100 rpm with a 50%:50% fluid ratio, and 78.03 HP at 4000 rpm with a 30%:70% fluid ratio, also without pre-heating. The average results show that the D1 and D2 mixtures improve torque values by 0.77% and 4.75%, respectively, and enhance power by 0.19% and 1.53% compared to pure Dexlite. In contrast, pre-heating at 50°C, 60°C, and 70°C resulted in a decrease in torque of 1.00%, 2.26%, and 3.62%, respectively, and a reduction in power of 0.56%, 2.29%, and 4.79% compared to normal temperature conditions.

Review

This study presents an experimental investigation into the multifaceted effects of fuel additives, pre-heating temperatures, and engine coolant variations on the performance of a multi-cylinder diesel engine. Given the critical role of diesel engines in heavy-duty transportation, the research addresses a highly relevant topic, aiming to optimize power and torque output. The authors have adopted a comprehensive approach, examining various mixtures of PTT (diesel fuel conditioner) additives with Dexlite fuel (D0, D1, D2), alongside different fuel pre-heating temperatures and coolant fluid ratios. This broad scope is commendable, seeking to provide a detailed understanding of how these parameters influence key engine performance metrics. The findings reveal several significant and actionable insights. Most notably, the D2 mixture of the PTT additive consistently demonstrated superior performance, achieving optimal torque of 160.70 N·m and power of 78.03 HP when coupled with a 30%:70% coolant fluid ratio and without any fuel pre-heating. On average, the D2 mixture improved torque by 4.75% and power by 1.53% compared to pure Dexlite, indicating a clear benefit of this specific additive concentration. Conversely, the study robustly demonstrates that pre-heating the fuel at 50°C, 60°C, and 70°C uniformly led to a reduction in both torque and power, challenging conventional assumptions and highlighting the importance of thermal management in diesel combustion. While the paper offers valuable empirical data on engine performance, a deeper analysis beyond descriptive statistics would enhance its impact. The abstract hints at "fluid ratios" without explicitly defining the components (e.g., water to coolant type), which could benefit from clarification for reproducibility. Furthermore, a comprehensive evaluation of engine performance often includes parameters such as fuel consumption and emissions, which are not discussed in the abstract but are crucial for real-world applications and environmental considerations. Future work could delve into the underlying physicochemical mechanisms responsible for the observed performance changes, especially the detrimental effects of pre-heating, and incorporate a broader array of performance indicators to provide a more holistic understanding.

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