Energy-saving cost-effectiveness analysis of improving engine thermal efficiency and extending all-electric range methods for plug-in hybrid electric vehicles

Liu, Xinglong; Zhao, Fuquan; Liu, Zongwei

doi:10.1016/j.enconman.2022.115898

Cited by 23 publications

(6 citation statements)

References 40 publications

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“…As shown in Figure 2 , the blue line depicts the cumulative probability distribution of daily travel mileage for consumers in China. 14 It can be seen that travel mileage below 300 km occupies 98.62% of people’s travel scenarios. It means that BEV300 can satisfy 98.62% of people’s daily travel scenarios.…”

Section: Resultsmentioning

confidence: 99%

“…and direct manufacturing cost of BEV are simulated by using the Technology evaluation model of the powertrain (TEMP) developed by the Tsinghua Automotive Strategy Research Institute at Tsinghua University. 14 , 30 TEMP is a technology-rich, bottom-up approach model which adopts the physics-based method to simulate the actual working state of the BEVs and calculates the energy consumption under the corresponding test cycle. At the same time, according to the mass sub-model and the component sizing sub-model, each BEV component’s corresponding size and mass can be calculated.…”

Section: Methodsmentioning

confidence: 99%

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Comprehensive assessment for different ranges of battery electric vehicles: Is it necessary to develop an ultra-long range battery electric vehicle?

Liu¹,

Zhao²,

Geng³

et al. 2023

iScience

Self Cite

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Comprehensive assessment for different ranges of battery electric vehicles: Is it necessary to develop an ultra-long range battery electric vehicle?

Liu¹,

Zhao²,

Geng³

et al. 2023

iScience

Self Cite

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“…Previous studies reported that the life-cycle CO 2 and NO x emissions of PHEVs in China on a single-vehicle scale were lower than ICEV, but SO 2 and PM 2.5 emissions were higher than ICEV . The battery production process for PHEVs and the conversion to renewable energy generation to produce emission reductions are difficult and uncertain to achieve in the short term. , Therefore, the driving cycle emission reductions of APs for PHEVs will be important in the future. Our results show that future APs emissions from PHEVs will still grow due to increased ownership (Figure C–F).…”

Section: Discussionmentioning

confidence: 99%

Upgrading Passenger Vehicle Emission Standard Helps to Reduce China’s Air Pollution Risk from Uncertainty in Electrification

Xie,

Chen,

Dai

et al. 2024

Environ. Sci. Technol.

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Upgrading to the CHINA 7 standard is crucial for managing air pollution from passenger vehicles in China. Meanwhile, China aims to achieve carbon neutrality by 2060, which necessitates large-scale replacement of gasoline vehicles with electric vehicles in the future. Consequently, the public might view upgrading gasoline vehicles to the CHINA 7 standard as redundant. However, the emission reduction benefits of upgrading standards in the context of uncertain electrification ambitions have not received adequate attention. Here, we show that upgrading standards will compensate for the absence of emissions reductions due to hindered electrification efforts. In the best scenario, China's CO 2 emissions can be reduced to 0.047 Gt and NO x to 8.2 × 10 3 t in 2050. In nonextreme electrification scenarios with CHINA 7 standard, the emission intensity reduction will remain the main driver for emission reductions, outweighing the electrification contribution. In extreme electrification scenarios, upgrading standards will tackle the increased emissions from plug-in hybrid electric vehicles. Our fleet-level results advocate for early standards upgrades to enhance resilience against air pollution risks arising from uncertainties in electrification. Our evidence from China, with one of the most stringent emission standards, can provide a reference point for the world on the upgrading passenger vehicle emission standard issue.

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“…The results of the conducted research confirmed the efficiency of using the exergic method when solving problems of optimizing the parameters of Rankine cycle, increasing its economic and ecological indicators. The exergic method of analysis was also used for the estimation of economical and ecological perspectives of renewable energy sources [21,22], improvement of gas turbines [23,24], optimization of design and working parameters of separate elements of power units [25,26] and development of complex systems of energy transformation and utilization of secondary energy resources [27][28][29][30].…”

Section: Methodsmentioning

confidence: 99%

Use of the exergy method to assess the energy efficiency of technical facilities

2022

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Improvement of technical objects and systems energy efficiency, the most widespread of which are heat engines, is an urgent task, for the solution of which it is necessary to use various methods. The review of scientific publications allows to single out the exergic analysis based on the exergic balance of power installations of different purpose and design as one of the basic universal methods of energy efficiency estimation. Substantiation of universality of the exergic analysis method on the basis of its theoretical preconditions is given. The basic reserve of increase in power efficiency of thermal engines is the rational use of secondary power resources. With the purpose of an estimation of prospects of use of power resources of heat-carrying agents of cooling systems) the calculation of the heat pump working on a reverse Rankine cycle is executed. On the basis of the executed calculations, the conclusion about prospects of use of the given devices, including for replacement of independent boilers in ship power installations is made. The article contains proposals on use of the exergic method in a complex with traditional methods of estimation of power efficiency of complex technical systems. Advantages of such approach are shown, its possibilities and perspective fields of application are determined. The data obtained as a result of conducted research shows that the use of secondary energy resources of heat engines with the use of recycling turbines and heat pumps of modern designs is promising and allows increasing the fuel utilization factor of reciprocating and gas turbine engines.

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Energy-saving cost-effectiveness analysis of improving engine thermal efficiency and extending all-electric range methods for plug-in hybrid electric vehicles

Cited by 23 publications

References 40 publications

Comprehensive assessment for different ranges of battery electric vehicles: Is it necessary to develop an ultra-long range battery electric vehicle?

Comprehensive assessment for different ranges of battery electric vehicles: Is it necessary to develop an ultra-long range battery electric vehicle?

Upgrading Passenger Vehicle Emission Standard Helps to Reduce China’s Air Pollution Risk from Uncertainty in Electrification

Use of the exergy method to assess the energy efficiency of technical facilities

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