Impact of fuel and engine operating conditions on efficiency of a heavy duty truck engine running compression ignition mode using energy and exergy analysis

Wang, Buyu; Pamminger, Michael; Wallner, Thomas

doi:10.1016/j.apenergy.2019.113645

Cited by 28 publications

(10 citation statements)

References 48 publications

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“…In the work of Wang et al [14], a detailed energy and exegetical analysis of a compression ignition internal combustion engine used in trucks was carried out. One of the main conclusions of the presented research was demonstration of significance of influence of parameters controlling the process of creating a combustible mixture on exergy losses, where the injection advance angle and thermodynamic parameters of the supplied working agents (fuel and air) were indicated as the key factor and the appropriate selection and control of these parameters for the engine load made it possible to obtain the value of the thermal efficiency index at the level of almost 48 %.…”

Section: Vehicle Movement Resistancesmentioning

confidence: 99%

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The Research and Impact Evaluation of Eco-Driving Strategy on Specific Energy Consumption in a Passenger Vehicles

Gorzelańczyk¹,

Piątkowski²

2022

Communications

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The article presents the results of an assessment of the impact of Eco-driving on the achieved emission parameters and performance characteristics of vehicles, with a particular focus on energy efficiency. The first part of the article presents the main principles of Eco-driving and then presents the results of experimental tests carried out on two vehicles powered by conventional fuel in the form of gasoline and substitute (unconventional) fuel in the form of LPG. The vehicles were operated under different traffic conditions. Based on the analysis of the experimental results, final conclusions were formulated. The analysis of the test results made it possible to demonstrate differences in the on-road energy consumption of the vehicles depending on the driving technique used and, in addition, the results obtained were compared to the energy intensity of electric vehicles as reported by their manufacturers.

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Section: Vehicle Movement Resistancesmentioning

confidence: 99%

“…The share of the sum of the route sections for the traffic with a speed limit of up to 90 km/h 64.9% i 1-2 = -0.08% i 2-3 = 1,00% i 3-4 = 0.00% i 4-5 = 0.06% i 5-6 = -0.52% i 6-7 = 0.20% i 7-8 = -0.34% i 8-9 = 0.09% i 9-10 = -0.03% i 10-11 = -0.24% i 11-12 = 0.23% i 12-13 = -0.20% i 13-14 = -0.01% 1) to the end point (14)…”

mentioning

confidence: 99%

The Research and Impact Evaluation of Eco-Driving Strategy on Specific Energy Consumption in a Passenger Vehicles

Gorzelańczyk¹,

Piątkowski²

2022

Communications

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“…Malik et al [19] compared three designs of a solar desalination plant for Karachi Pakistan and identified the most recommended one based on exergy analysis. Wang et al [20] investigated the a heavy duty truck engine running compression ignition by energy and exergy analysis and identified the irreversibility sources. Ma et al [21] studied the impact of key operating variables on the exergy loss of the diesel methanol dual fuel engine and proposed suggestions on efficiency improvement based on the results.…”

Section: Literature Reviewmentioning

confidence: 99%

Exergy analysis and multi-objective optimisation for energy system: a case study of a separation process in ethylene manufacturing

Shen

Wang

Huang

et al. 2021

Journal of Industrial and Engineering Chemistry

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In chemical industry, most processes face the challenge of high energy consumption.The approach presented in this study can reduce the energy footprint and increase efficiency. The energy system of a separation process in ethylene manufacturing is used to demonstrate the effectiveness of the approach. The chilling train system of the separation process in a typical ethylene plant consumes most cooling and provides appropriate feed for distillation columns. The steady state simulation of system was presented and the simulation results were proved accurate. The conventional exergy analysis identifies that Dephlegmator No.1 (a heat exchange and mass transfer device) has the highest exergy destruction (1401.28 kW). Based on advanced exergy analysis, Dephlegmator No.1 has the highest rate of avoidable exergy destruction (89.04 %). Finally, a multiobjective optimisation aiming to maximise system exergy efficiency and to minimise operational cost was performed and the Pareto frontier was obtained. The optimized exergy efficiency is 79.53 % (improved by 0.61 %) and the operational cost is 0.02031 yuan/kg (saved by 11.19 %). This study will guide future research to reduce energy consumption in process manufacturing.

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“…Additionally, the energy quantities inside the ICE system can be discussed in specific (i.e., the unit mass basis) and mass flow rate based forms. The specific energy quantity as an intensive property is commonly used to compare the energy transport by unit mass under different operating conditions [7,14]. For instance, the specific exhaust gas enthalpy and exergy in a gasoline compression ignition engine were compared to indicate the input energy change of the turbocharger and waste heat recovery efficiency under different combustion strategies [14].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The specific energy quantity as an intensive property is commonly used to compare the energy transport by unit mass under different operating conditions [7,14]. For instance, the specific exhaust gas enthalpy and exergy in a gasoline compression ignition engine were compared to indicate the input energy change of the turbocharger and waste heat recovery efficiency under different combustion strategies [14]. On the other hand, the mass flow rate based form accounts for the total amount of energy carried by the flow.…”

Section: Literature Reviewmentioning

confidence: 99%

Numerical Analysis of Engine Exhaust Flow Parameters for Resolving Pre-Turbine Pulsating Flow Enthalpy and Exergy

2021

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Energy carried by engine exhaust pulses is critical to the performance of a turbine or any other exhaust energy recovery system. Enthalpy and exergy are commonly used concepts to describe the energy transport by the flow based on the first and second laws of thermodynamics. However, in order to investigate the crank-angle-resolved exhaust flow enthalpy and exergy, the significance of the flow parameters (pressure, velocity, and temperature) and their demand for high resolution need to be ascertained. In this study, local and global sensitivity analyses were performed on a one-dimensional (1D) heavy-duty diesel engine model to quantify the significance of each flow parameter in the determination of exhaust enthalpy and exergy. The effects of parameter sweeps were analyzed by local sensitivity, and Sobol indices from the global sensitivity showed the correlations between each flow parameter and the computed enthalpy and exergy. The analysis indicated that when considering the specific enthalpy and exergy, flow temperature is the dominant parameter and requires high resolution of the temperature pulse. It was found that a 5% sweep over the temperature pulse leads to maximum deviations of 31% and 27% when resolving the crank angle-based specific enthalpy and specific exergy, respectively. However, when considering the total enthalpy and exergy rates, flow velocity is the most significant parameter, requiring high resolution with a maximum deviation of 23% for the enthalpy rate and 12% for the exergy rate over a 5% sweep of the flow velocity pulse. This study will help to quantify and prioritize fast measurements of pulsating flow parameters in the context of turbocharger turbine inlet flow enthalpy and exergy analysis.

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Impact of fuel and engine operating conditions on efficiency of a heavy duty truck engine running compression ignition mode using energy and exergy analysis

Cited by 28 publications

References 48 publications

The Research and Impact Evaluation of Eco-Driving Strategy on Specific Energy Consumption in a Passenger Vehicles

The Research and Impact Evaluation of Eco-Driving Strategy on Specific Energy Consumption in a Passenger Vehicles

Exergy analysis and multi-objective optimisation for energy system: a case study of a separation process in ethylene manufacturing

Numerical Analysis of Engine Exhaust Flow Parameters for Resolving Pre-Turbine Pulsating Flow Enthalpy and Exergy

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