A Comprehensive Study on the Effect of Dimethyl Carbonate Oxygenate and EGR on Emission Reduction, Combustion Analysis, and Performance Enhancement of a CRDI Diesel Engine Using a Blend of Diesel and Prosopis juliflora Biodiesel

Abstract

This paper examines the combined effects of ignition improvers (DMC) and EGR on the CRDI small single-cylinder diesel engine’s performance, combustion, and emissions. In this experimentation, 20% (B20) optimal mix of Prosopis juliflora oil biodiesel (PJOB) and 5 ml dimethyl carbonate (DMC) additive was used as test fuel. The fuel handling CRDI system factors such as injection pressure set at 600 bar and injection timing set to 21 (bTDC) with a compression ratio of 16 were considered for the study. For the EGR trial, 20% of the exhaust gas was recirculated under various BMEP circumstances. The test was performed with and without EGR and DMC additive conditions like (i) diesel @ 0% EGR, (ii) diesel + 5 ml DMC @ 20% EGR, (iii) B20 @ 0% EGR, and (iv) B20 + 5 ml DMC @ 20% EGR at the engine power output. The amalgamation of dimethyl carbonate (DMC) additives and EGR reduces NOx and smoke while increasing CO and HC emissions. In addition, the DMC additive and EGR improve thermal efficiency slightly. The overall clubbing of DMC additive and EGR rate indicates better performance for the selected factors than a CRDI engine with a six-hole conventional mechanical fuel injection system. The outcome of the work clearly demonstrates that both the 5 ml DMC additive and the 20% EGR rate of the B20 blend show optimum values of BTE, BSFC, and EGT of 32.93%, 0.27 kg/kw·hr, and 310.89°C, which is closer to diesel. Factors of combustion like cylinder peak pressure (CPP) and heat release rate (HRR) are 70.93 bar and 58.13 J/deg. The tailpipe exhaust of NOx and smoke is 1681 ppm and 31.30 (% vol), which is less than diesel. The HC and CO levels are 93 ppm and 0.38 (% vol), respectively, which are significantly higher than diesel fuel.

Effect of Nano TiO2 Filler Addition on Mechanical Properties of Bamboo/Polyester Hybrid Composites and Parameters Optimized Using Grey Taguchi Method

“…ANOVA Analysis. The ANOVA results are utilized to determine which process parameters influence the impacting process variables in titanium oxide and bamboo-based hybrid composites [40]. In the ANOVA, the traditional GRG value can be utilized.…”

Interlaminar Shear, Bending, and Water Retention Behavior of Nano-SiO2 Filler-Incorporated Dharbai/Glass Fiber-Based Hybrid Composites under Cryogenic Environment

“…For instance, resources used in aeroplane construction should withstand severe temperatures of up to 200 °C. Composites and plastics that have been cryogenically treated show high strength, tougher, and consume improved rigidity and wear confrontation [26]. As a result, liquid nitrogen treating of composites can develop an important aspect of ongoing investigation and growth to enhance natural composite material behavior.…”

Performance, combustion, and emission of a diesel engine fueled with an eco‐friendly mixture of two biodiesel blends

“…Fuel conversion efficiency is an indicator for identifying the amount of useful energy being created (Nagappan et al, 2020). Comparison of more than one fuel can be better analyzed with brake thermal efficiency than specific fuel consumption (Ramesh et al, 2022). The maximum BTEs at full load condition for Pongamia 50% + Mahua 50% and Diesel 50% + Pongamia 25% + Mahua 25% is calculated and the result is shown in Exhibit 10.…”