Improvement of Fusel Oil Features and Effect of Its Use in Different Compression Ratios for an SI Engine on Performance and Emission

Abstract

In this study, the effects of the use of improved fusel oil on engine performance and on exhaust emissions in a spark-ignition engine were investigated experimentally in consideration of the water, gum, and moisture content at high compression ratios according to TS EN 228 standards. In the study, a four-stroke, single-cylinder, air-cooled, spark plug ignition engine with an 8/1 compression ratio was used at three different compression ratios (8/1, 8.5/1, 9.12/1). Experiments were performed for six different ratios of fuel blends (F0, F10, F20, F30, F40, and F50) at a constant speed and different loads. The data obtained from the experiments were compared with the original operating parameters of the engine while using gasoline. According to the test results, the optimal engine performance was at a 9.12/1 compression ratio and with a F30 fuel blend. With the increase from an 8/1 to 9.12/1 compression ratio for the F30 fuel blend, the overall efficiency increased by 6.91%, and the specific fuel consumption decreased by 2.35%. The effect of the optimum fusel blend on the emissions was also examined and CO emissions were reduced by 36.82%, HC emissions were reduced by 23.07%, and NOx emissions were reduced by 15.42%, while CO2 emissions were increased by 13.88%.

A Study Toward Analyzing the Energy, Exergy and Sustainability Index Based on Performance and Exhaust Emission Characteristics of a Spark-Ignition Engine Fuelled with the Binary Blends of Gasoline and Methanol or Ethanol

“…The main reason for lower HC emissions in ethanol-gasoline and methanol-gasoline blends is that ethanol and methanol contain an excessive amount of oxygen molecules in their structure. NOX emissions occur as a result of the nitrogen in the air reacting with oxygen at high temperatures during the combustion process inside the engine cylinder (Fletcher et al, 1971;Şimşek et al, 2020). The alterations of the NOX emissions for all the tested fuel samples according to the engine load was presented in Figure 7.…”

Buji ile Ateşlemeli Bir Motorda Sentetik Mangan Katkısı ile Fuzel Yağı-Benzin Karışımlarının Performans ve Emisyonlara Etkilerinin İncelenmesi

“…Silindir içerisinde yanma sonu oluşan yüksek sıcaklık ve yakıt içerisindeki oksijen miktarı CO2 oluşumunu tetikler [18,31,44]. Literatürdeki benzer çalışmalarda CO2 miktarının arttığı tespit edilmiştir [27,34,41,42]. Yapılan çalışmada %15'lik fuzel yağı katkısı yakıt karışımının içeriğindeki oksijen miktarının artışına sebep teşkil etmiş olabilir.…”

“…Fuzel yağının fiziksel ve kimyasal özellikleri (Physical and chemical properties of fusel oil)[34] Test motoru teknik içerikleri (Test engine specifications) yağı ve benzin karışımları içerisindeki oktan sayısı üzerindeki baskın ısıl değerin etkisinin azalmasının etkisi olarak değerlendirilebilir[37].…”

Performance and emission behaviors of a CI engine fueled by waste feedstocks at varying compression ratios

“…When the literature is searched, it is found that fusel oils are usually tested by mixing with gasoline fuel instead of diesel fuel. 40,41 There are a few studies investigating the effects of using fusel oil as an oxygenated fuel additive for diesel engines. So, the use of fusel oil as an alternative fuel in diesel engines can be considered as a new energy source for internal combustion engines.…”