Production of Waste Plastics Oil and Its Prospective Use in a Variable Compression CI Engine

Das, Amar Kumar; Sahoo, Sudhansu S.; Panda, Achyut K.

doi:10.1061/(asce)hz.2153-5515.0000606

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…8 Pyrolysis transforms low-energy-density materials into high-value chemicals and reduces environmental hazards compared to conventional energy recovery methods. 9 The characteristics of the fuel obtained from plastic wastes through pyrolysis depend upon the process temperature, catalyst and type of plastic used as feedstock. 10 Producing liquid fuels from plastic waste by pyrolysis can be a sustainable solution for effectively managing plastic waste.…”

Section: Introductionmentioning

confidence: 99%

“…In pyrolysis, the plastic waste is heated without oxygen at temperatures of 300 to 900 °C, which results in the thermal degradation of plastic waste and produces liquid oil, char and syngas [8]. Pyrolysis transforms low-energy-density materials into high-value chemicals and reduces environmental hazards compared to conventional energy recovery methods [9]. The characteristics of the fuel obtained from plastic wastes through pyrolysis depend upon the process temperature, catalyst and type of plastic used as feedstock [10].…”

Section: Introductionmentioning

confidence: 99%

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Investigations on reactivity controlled compression ignition combustion with different injection strategies using alternative fuels produced from waste resources

Chidambaram

Krishnasamy

Duraisamy

et al. 2023

International Journal of Engine Research

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Reactivity-controlled compression ignition (RCCI) is a promising low-temperature combustion (LTC) strategy that results in low oxides of nitrogen (NOx) and soot emissions while maintaining high thermal efficiency. At the same time, RCCI leads to increased unburned hydrocarbon (HC) and carbon monoxide (CO) emissions in the exhaust, particularly under low loads. The current work experimented novel port-injected RCCI (PI-RCCI) strategy to overcome the high unburned emission limitations at low load conditions in RCCI. PI-RCCI is a port injection strategy in which low-reactivity fuel (LRF) is injected using a low-pressure injector, and the high-reactivity fuel (HRF) is injected through a high-pressure common rail direct injection (CRDI) injector. The low volatile HRF is injected into a heated fuel vaporizer maintained at 180°C in the intake manifold during the suction stroke. Modifying a single-cylinder, light-duty diesel engine with the necessary intake and fuel injection systems allows engine operation in both RCCI and PI-RCCI modes. Alternative fuels from waste resources such as waste cooking oil biodiesel (WCO) and plastic waste oil (WPO) are used as the HRF and LRF fuel in RCCI and PI-RCCI. To achieve maximum thermal efficiency in RCCI, the premixed energy ratio and the start of injection of the direct-injected fuel are optimized at all load conditions. The engine performance and exhaust emissions characteristics in PI-RCCI are compared with RCCI as a baseline reference. The results show a 70% and 48% reduction in CO and HC emissions, respectively, in PI-RCCI than in RCCI. Further, the brake thermal efficiency (BTE) was enhanced by around 20%, and the brake-specific fuel consumption (BSFC) was reduced by 13% in PI-RCCI. The NOx emissions decreased without any considerable changes in soot emission in PI-RCCI. The current study shows that fuels derived from waste resources can be used in RCCI and PI-RCCI modes with better engine performance and lower emissions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigations on reactivity controlled compression ignition combustion with different injection strategies using alternative fuels produced from waste resources

Chidambaram

Krishnasamy

Duraisamy

et al. 2023

International Journal of Engine Research

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Optimization of diesel engine performance and emission using waste plastic pyrolytic oil by ANN and its thermo-economic assessment

Panda

Rout²,

Das

2023

Environ Sci Pollut Res

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The current study focuses on the engine performance and emission analysis of a 4 stroke compression ignition engine powered by medical waste plastic oil (WPO) followed by their optimization study and economic analysis. Engine tests were conducted using WPO blended diesel at various proportions to acquire required data for training the ANN model, which enables better prediction for the engine performance by making use of the standard back-propagation algorithm.Considering supervised data obtained from repeated engine tests, an arti cial intelligence-based model of ANN was designed to select different parameters of performance and emission as output layers, at the same time engine loading and different blending ratio of the test fuels were taken as the input layers. The ANN model was built up making use of 80% of testing outcomes for training. The ANN model forecasted engine performance and exhaust emission with regression coe cients (R) at 0.989-0.998 intervals and a mean relative error from 0.002% to 0.348%. Such results illustrated the effectiveness of the ANN model for estimating emissions and the performance of diesel engines. This study demonstrates the use of arti cial neural networks (ANNs) to forecast a multi-component fuel mixture, which is novel and reduces the amount of experimental effort required to determine the engine output characteristics. Moreover, the economic viability of the use of 20WPO as an alternative to diesel was justi ed by thermo-economic analysis.The Important Highlights Of The Work Are 1. Study of performance and emission diesel engine fuelled with WPO blended diesel. 2. Development of an arti cial intelligence-based ANN model at speci c engine conditions. 3. Analysis of productivity of ANN model developer for this experiment and test the economic feasibility.

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Experimental analysis of cycle tire pyrolysis oil doped with 1-decanol + TiO2 additives in compression ignition engine using RSM optimization and machine learning approach

Kumar,

Razak,

Yadav

et al. 2024

Case Studies in Thermal Engineering

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Production of Waste Plastics Oil and Its Prospective Use in a Variable Compression CI Engine

Cited by 5 publications

References 24 publications

Investigations on reactivity controlled compression ignition combustion with different injection strategies using alternative fuels produced from waste resources

Investigations on reactivity controlled compression ignition combustion with different injection strategies using alternative fuels produced from waste resources

Optimization of diesel engine performance and emission using waste plastic pyrolytic oil by ANN and its thermo-economic assessment

Experimental analysis of cycle tire pyrolysis oil doped with 1-decanol + TiO2 additives in compression ignition engine using RSM optimization and machine learning approach

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