Kurumun Atıf Alan Makalesi
Atıf Alan Yayın
An experimental study on energy-exergy analysis and sustainability index in a diesel engine with direct injection diesel-biodiesel-butanol fuel blends
Scopus
Toplam 148 atıf DOI
The aim of this study was to investigate the effects of biodiesel and butanol properties on energetic-exergetic efficiencies of the engine performance and assessment of sustainability. In this study, energy and exergy analyses were performed in a direct-injected (DI) diesel engine operating with various diesel-biodiesel-butanol fuel blends. The experiments were conducted with a single-cylinder, naturally aspirated, water-cooled, a DI diesel engine at the maximum torque (1400 rpm) and power (2800 rpm) condition. According to obtained results, it was found that biodiesel energetic-exergetic efficiencies and sustainability index (SI) of biodiesel were higher than euro diesel. The maximum energy-exergy efficiencies and SI of the diesel engine were 32.49%, 30.25%, and 1.434, respectively and were obtained using B100 fuel at 1400 rpm. However, low butanol ratio blends had considerably similar energetic-exergetic performance and SI trends compared to euro diesel, while these values decreased by increasing the butanol ratio. Thus, D75B20But5 can be accepted as fuel that has the best fuel ratio according to the performance of the energy-exergy and SI. It could be concluded that the properties of the biodiesel and butanol have substantially affected the energy-exergy analysis and SI value of a direct-injected diesel engine.
Atıf Kaynağı
Atıf Yapan Yayın
An evaluation based on energy and exergy analyses in SI engine fueled with waste bread bioethanol-gasoline blends
Scopus
Havuzumuzda 50 atıf almış
In this study, the operation of a single cylinder, four stroke, SI engine powered by fuels created by blending two different bioethanol with gasoline was evaluated on the basis of energy and exergy analyses. Within the scope of the study, test engine was tested by operating it with fuel blends, prepared by adding both bioethanol, one of them was produced from waste bread and the other, originating from sugar beet, was supplied, to gasoline at different rates by of 5, 10, 15, 85 and 100% under five different engine loads at maximum torque speed, 2500 rpm. The variation of energy and exergy parameters was examined by comparing the blends, prepared to have similar volumetric content, each other and by comparing all with gasoline. As a result of the study, it was determined that the addition of bioethanol had generally decreasing effect on energy loss rate, exergy loss rate and exergy destruction rate. For fuel blends containing low levels of bioethanol, variation of ethanol has created little differences on all energy and exergy parameters but bioethanol type clearly showed its effect when bioethanol rate increased to 85% and 100%. Although waste bread bioethanol could not catch sugar beet bioethanol in terms of thermal efficiency (14.4% for E100b and 16.4% for E100 as load average) and exergetic efficiency (12.9% for E100b and 14.7% for E100 as load average), both bioethanol have been found to improve both thermal efficiency (12.2% for E0) and exergetic efficiency (11.4% for E0) than that of gasoline.
Atıf Yapan Makale Bilgileri
Kurumlar (1)
Selçuk Üniversitesi
Selçuklu, Turkey