Article
Thermodynamics
Mustafa Vargun, Ilker Turgut Yilmaz, Cenk Sayin
Summary: The study found that adding clean fuels such as methanol, ethanol, and n-heptane to diesel can effectively reduce emissions, improve fuel economy, and increase maximum brake thermal efficiency. Results from using blended fuels showed a significant decrease in CO2 emissions and a reduction in HC emissions with an increase in engine load.
Article
Thermodynamics
Md. Nurun Nabi, Wisam K. Hussam, Hasan Mohammad Mostofa Afroz, Adib Bin Rashid, Jahidul Islam, A. N. M. Mominul Islam Mukut
Summary: This study investigated the engine performance and emissions of waste tire oil-diesel-biodiesel blends, finding that the maximum blending limit for waste tire pyrolysis oil was 30% in diesel fuel.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Luis Tipanluisa, Natalia Fonseca, Jesus Casanova, Jose-Maria Lopez
Summary: This study investigates the effects of different n-butanol/diesel fuel blends on a Euro V heavy-duty diesel engine's performance and emissions. The results show that using n-butanol can improve engine performance and reduce particulate emissions in most operating conditions, while increasing CO emissions. The study also indicates that THC emissions increase with n-butanol content, while NO2 emissions decrease.
Article
Chemistry, Applied
Ahmad O. Hasan, Ahmed I. Osman, Ala'a H. Al-Muhtaseb, Hani Al-Rawashdeh, Ahmad Abu-jrai, Riad Ahmad, Mohamed R. Gomaa, Tanmay J. Deka, David W. Rooney
Summary: The study found that blended methanol can reduce HC and CO emissions in tailpipe, but increase NOx emissions; smoke emissions significantly decrease as the percentage of methanol in blends increases. Pure diesel showed higher brake thermal efficiency and lower fuel consumption at all engine loads.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Energy & Fuels
Alireza Shirneshan, Seyed Amin Bagherzadeh, Gholamhassan Najafi, Rizalman Mamat, Mohamed Mazlan
Summary: The research investigated the combined effects of biodiesel-ethanol fuel blends on a diesel engine's performance and emission parameters using response surface methodology. Results showed that increasing ethanol in the fuel mixture decreased brake power and torque, while improving BSFC. Higher ethanol percentage led to reduced smoke and NOx emissions, while higher biodiesel percentage reduced CO emissions. Genetic algorithm optimization showed optimal conditions with 94.65% biodiesel, 2800 RPM, and 65.75% engine load. Ethanol was found to be more effective in improving emission characteristics than performance characteristics.
Article
Environmental Sciences
Ibrahim Yildiz, Hakan Caliskan, Kazutoshi Mori
Summary: The study demonstrates the effectiveness of a cordierite-based diesel particulate filter (CPF) in reducing total particle concentration, soot concentration, CO and HC emissions from a diesel engine. However, the utilization of CPF also leads to an increase in CO2 and NOx emissions due to oxidation processes within the filter.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Thermodynamics
Mehmet Zerrakki Isik
Summary: The experiments in the article showed that adding alcohols to biodiesel fuel can increase fuel consumption, but blending specific quantities of heavy alcohols with biodiesel can significantly improve engine brake thermal efficiency, combustion, and reduce emissions.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Suozhu Pan, Jiangjun Wei, Changfa Tao, Gang Lv, Yejian Qian, Qiang Liu, Weiqiang Han
Summary: This study investigates the effects of cerium oxide nanoparticles on the performance and emissions of a diesel engine. The results show that methanol-based nanofluids with CeO2 nanoparticles can improve engine thermal efficiency and reduce emissions compared to pure methanol mode.
Article
Thermodynamics
Mortadha K. Mohammed, Hyder H. Balla, Zaid Maan H. Al-Dulaimi, Zaid S. Kareem, Mudhaffar S. Al-Zuhairy
Summary: The negative effects of traditional engine fuels on climate change have led to a high level of competition in finding alternative fuels that are more environmentally friendly. Alcohol fuels, particularly ethanol, have been found to be practical for blending with traditional engine fuels like gasoline. Research has shown that blending ethanol with gasoline can increase power, efficiency, and reduce harmful exhaust gases. However, ethanol may have a negative impact on volumetric efficiency, while also improving power and efficiency as its concentration increases.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Jichao Liang, Quanchang Zhang, Zheng Chen, Zunqing Zheng, Chao Yang, Qixin Ma
Summary: The use of Tetrahydrofuran (THF) and ethanol as co-solvents for diesel fuel can increase combustion efficiency and reduce emissions, especially at low EGR rates, in diesel engine tests.
Article
Energy & Fuels
Limin Geng, Leichao Bi, Qi Li, Hao Chen, Yuantao Xie
Summary: The study found that adding ethanol to biodiesel improves spray characteristics and combustion performance in diesel engines. At low loads, peak cylinder pressures (PCPs) of BE blends are higher than diesel, while peak heat release rates (PHRRs) are also higher. However, at medium-high loads, PHRRs decrease and emissions decrease with increasing ethanol blending ratio.
Article
Thermodynamics
Jiangjun Wei, Zenghui Yin, Chunmei Wang, Gang Lv, Yuan Zhuang, Xiangrong Li, Han Wu
Summary: The study demonstrates that adding aluminum oxide (AL(2)O(3)) nanoparticles to diesel-methanol blends can significantly improve engine performance, including enhancing peak in-cylinder pressure and thermal efficiency, reducing ignition delay and combustion duration, as well as decreasing fuel consumption and energy consumption, and lowering CO, HC, and smoke emissions.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
B. Karpanai Selvan, Soni Das, M. Chandrasekar, R. Girija, S. John Vennison, N. Jaya, P. Saravanan, M. Rajasimman, Yasser Vasseghian, N. Rajamohan
Summary: The study investigates the performance and emission characteristics of various biomass blends in a diesel engine. The results show that the AO10D blend performs well with higher thermal efficiency and lower emissions at 50% load.
Article
Engineering, Environmental
Mustafa Vargun, Ahmet Necati Ozsezen, Huseyin Bostali, Cenk Sayin
Summary: This study investigates the effects of injection start timing, pilot injection application, and boost air pressure increase on combustion and exhaust emissions. The results show that using pilot fuel injection and advanced injection timing increases the peak cylinder gas pressure, but also improves combustion noise. Additionally, the combustion reactions of alcohol/diesel fuels occur faster than pure diesel, but this can be reduced with pilot fuel injection application.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Environmental Sciences
Katherine R. Landwehr, Jessica Hillas, Ryan Mead-Hunter, Andrew King, Rebecca A. O' Leary, Anthony Kicic, Benjamin J. Mullins, Alexander N. Larcombe, W. A. E. R. P. WAERP
Summary: To address climate change and reduce carbon footprint, the use of renewable biodiesel blended with commercial diesel fuel is expected to increase. This study aimed to assess the impact of biodiesel feedstock on exhaust toxicity of 20% blended biodiesel fuels. The results showed that different biodiesel feedstocks had varying effects on exhaust toxicity, with palm, soy, and tallow biodiesel being the most toxic, and canola and WCO biodiesel being the least toxic. The findings suggest that feedstock type greatly influences the exhaust toxicity, even at a 20% blend ratio.