Enhancement of idling characteristics using multi-objective approach in light-duty diesel Vehicle fuelled with orange peel biofuel. (1st May 2021)

• Record Type: Journal Article
• Authors: Vignesh, R.; Ashok, B.; Jeevanantham, A.K.; Jacob, Ashwin; Bhembre, Raunak Devdatta Prabhu; Sharma, Shlok Shreedhar; Hire, Kartik R. Bhat
• Is Part Of: Fuel. Volume 291(2021)
• Publication Date: 2021-05-01
• Subjects: ASTM American Society for Testing and Material -- ANOVA Analysis of Variance -- BTE Brake Thermal Efficiency -- bTDC Before Top Dead Centre -- BS4 Bharat Stage IV -- CA Crank angle -- CCD Central Composite Design -- CI Compression Ignition -- CO Carbon Monoxide -- CO2 Carbon Dioxide -- CRDI Common Rail Direct Injection -- DoE Design of Experiment -- ECU Electronic Control Unit -- ES Engine Speed -- FIP Fuel Injection Pressure -- FSN Filter Smoke Number -- HC Hydrocarbon -- HRR Heat Release Rate -- MFB Mass Fraction Burnt -- MGT Mean Gas Temperature -- MIT Main Injection Timing -- NOx Oxides of Nitrogen -- OPO20 Orange Peel Oil (20%) blended with diesel fuel (80%) -- PIT Pilot Injection Timing -- PM Pilot Mass -- PP Peak Pressure -- RPR Rate of Pressure Rise -- RSM Response Surface Methodology -- SFC Specific Fuel Consumption; Low load region -- Engine Idling -- Biofuels -- Orange peel oil (OPO) -- Response surface methodology (RSM) -- Central composite region (CCD); Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2021.120222
• Languages: English
• ISSNs: 0016-2361

Abstract

Graphical abstract: Highlights: Interpretative parametric optimization of CRDi engine Idling Operation for OPO blends. Statistical approach CCD and RSM incorporated calibration of Idling Operation. Optimum PIT 21° bTDC, PM 24%, FIP 500 bar and 1100 rpm as an idle engine speed. Various response regression models for diesel and OPO20 under idle mode. Better combustion characteristics due to the inherent oxygen content in OPO. Abstract: Along with an increasing demand for an alternate source of fossil fuel, rapid urbanization has increased the motor vehicle pollutant spews in a metropolis, especially in traffic congestion or cold start condition. In reference to these situations; this research is aimed at utilizing orange peel oil (OPO) as blend fuel to mineral diesel in light-duty diesel engine and asses the output characteristics for optimizing engine fuel map under idling condition. A four-factor central composite design (CCD) approach-based response surface methodology (RSM) analysis is applied to statistically relate the effect of important input variables on key engine characteristics to achieve minimum emissions without a major compromise on the power output. From the desirability report, for orange Peel Oil (20%) blended with diesel fuel (80%) (OPO20) fuel, the optimum pilot injection timing is 21 0 before top dead centre (bTDC), pilot mass of 24% and apt fuel injection pressure is 500 bar while maintaining 1100 rpm as idle engine speed. While tuning the OPO20 operated engine fuel map under this optimum operating condition, a notable reduction of 34% in carbon monoxide and 36.84% reduction in smoke is observed in comparison to diesel. However, the increased mean gas temperature in-turn translated into 37.65% increase in oxides of nitrogen. As a trade-off to the reduced emissions, a 15.47% decrease in the brake thermal efficiency is observed while the specific fuel consumption also increased by 29.98% in comparison to diesel operation.