Performance, combustion, and emission characteristics of on a diesel engine fuelled with hydrogen compressed natural gas and Kusum seed biodiesel

Kaur, Bhatti Sukhvinder; Lankapalli, Sathya Vara Prasad; Sagari, Jaikumar

doi:10.1007/s42768-022-00132-0

Cited by 6 publications

(2 citation statements)

References 45 publications

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“…At present, the BC mitigation strategies mainly fall into three main categories: fuel treatments, combustion optimization, and exhaust after-treatment. − Among various exhaust BC after-treatment technologies, particulate filters (PFs, including DPF, GPF, etc.) are considered one of the most effective methods due to their high efficiency and compact size and have been widely applied in on-road engines .…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic Black Carbon Capture from Ship Emissions Based on a Charger-Coupled Wet Scrubber

Wu,

Zhou,

Zhou

et al. 2023

Energy Fuels

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Black carbon emissions from ships have been identified as a significant contributor to the accelerated melting of Arctic glaciers, and there has been a lack of standardized methods for controlling them. In this study, a comprehensive approach to address ship-based hydrophobic black carbon with simulated nanoparticles (SP-BCs) was developed through enhanced scrubbing by electrostatic charging. The charger-coupled wet scrubber exhibited significant improvement under a low flue gas velocity (1 m/s) and a low liquid-to-gas ratio (L/G ratio, 8 L/m3), where the collection efficiency of the nanoscale SP-BC was increased by over 25%. In addition, many SP-BCs escaped from the outlet of the conventional wet scrubber during a long period of spraying at high intensity. Applying an electrostatic charger, increasing the L/G ratio, and increasing the flow velocity could effectively suppress the escape of black carbon particles during prolonged cyclic spraying. Furthermore, the optimal electric field intensity for the charger was 6.5 kV/cm to ensure a long-term stable operation. The charger-coupled wet scrubber could achieve a minimum emission concentration of SP-BC as low as 4.48 mg/m3, with a corresponding collection efficiency of 91.3%. The results have significant implications for low-resistance and high-efficiency black carbon emission control from ships.

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Section: Introductionmentioning

confidence: 99%

Hydrophobic Black Carbon Capture from Ship Emissions Based on a Charger-Coupled Wet Scrubber

Wu,

Zhou,

Zhou

et al. 2023

Energy Fuels

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“…It utilizes the characteristics of the rotor flux to design the sliding mode observer for estimating rotor position and speed. In the context of PMSM, scholars have conducted in-depth research and proposed various improved algorithms [7][8][9][10][11] to enhance control accuracy and disturbance rejection capabilities.…”

Section: Introductionmentioning

confidence: 99%

Improved Rotor Flux-Based SMO and RBF-PID Control Strategy for PMSM

Wang

Liu²,

Chen

et al. 2023

Actuators

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This paper proposes a control strategy that combines an improved flux-based sliding mode observer with a Radial Basis Function Proportional-Integral-Derivative (RBF-PID) controller for the control of Permanent Magnet Synchronous Motors (PMSM). The strategy aims to address the issues of electrical angle estimation errors and torque fluctuations in traditional sliding mode observer control. The improved sliding mode observer utilizes the flux model of the PMSM to enhance the accuracy of electrical angle estimation, thereby reducing the estimation errors and improving the control of the current loop and speed. The RBF-PID controller ensures system stability while achieving faster response and reduced torque fluctuations. Simulation and experimental results demonstrate that compared to traditional PI control and sliding mode observer control methods, the proposed strategy improves the performance of electrical angle estimation by 7.05% and reduces overshoot in the q-axis current by 28.6%, exhibiting better control performance and smaller errors.

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Role of analytical methods in verifying biodiesel upgrades: Emphasis on nanoparticle and acetone integration for enhanced performance, combustion, and emissions

Deviren,

Çılğın,

Bayındır

2024

Heat Trans

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This study aims to address critical challenges such as global warming and energy sustainability by targeting the reduction of high NOx emissions in diesel engines. The effects of acetone (AC) and magnesium oxide (MgO) nanoparticles (NPs) as additives in improving the physicochemical properties of biodiesel derived from renewable, nonedible Pistacia terebinthus oil, which is abundant in Turkey and has a high free fatty acid (FFA) content of 5.8%, were investigated. Due to the high FFA content, a two‐step (esterification followed by transesterification [TR]) method was used for biodiesel production. Additionally, a quantitative analysis of biodiesel obtained by both single (TR) and two‐step methods was performed to address a gap in the literature. The addition of AC and MgO NPs to B20 (80% diesel fuel and 20% biodiesel) fuel resulted in reductions in the rate of pressure rise, instantaneous energy release, cylinder pressure, mean gas temperature, and cumulative heat release rate. However, brake‐specific fuel consumption increased, and brake thermal efficiency decreased. Emissions analyses showed a reduction in CO emissions by 6.65% with AC and 2.10% with AC + MgO, and a reduction in NOx emissions by 41.64% with AC and 46.03% with AC + MgO. However, hydrocarbon emissions increased by 26.48%. The study highlights the synergistic benefits of AC and MgO additives in biodiesel, presenting a viable strategy for improving the environmental and performance metrics of biodiesel blends. It provides new insights into alternative fuel formulations.

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Performance, combustion, and emission characteristics of on a diesel engine fuelled with hydrogen compressed natural gas and Kusum seed biodiesel

Cited by 6 publications

References 45 publications

Hydrophobic Black Carbon Capture from Ship Emissions Based on a Charger-Coupled Wet Scrubber

Hydrophobic Black Carbon Capture from Ship Emissions Based on a Charger-Coupled Wet Scrubber

Improved Rotor Flux-Based SMO and RBF-PID Control Strategy for PMSM

Role of analytical methods in verifying biodiesel upgrades: Emphasis on nanoparticle and acetone integration for enhanced performance, combustion, and emissions

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