【Advances in Applied Energy】电池、燃料电池亦或发动机?重型货车用电经济性和环保性评估

学术   科学   2024-11-09 18:30   美国  

原文信息:

Batteries, fuel cells, or engines? A probabilistic economic and environmental assessment of electricity and electrofuels for heavy goods vehicles

原文链接:

https://www.sciencedirect.com/science/article/pii/S2666792422000282

摘要

总体拥有成本、系统成本和生命周期环境影响的不确定性意味着利益相关者可能缺乏必要的信息来评估由传统化石能源向低碳燃料及其动力系统过渡的风险。本文在考虑输入参数不确定性的情况下,评估了重型货车(HGV)中使用电力和电力燃料的寿命周期成本和从燃料开采到车辆运行(well-to-wheel)周期内的环境影响。在基于蒙特卡罗的框架内评估电力成本、电解槽容量系数、CO2捕集成本和电力排放强度(CO2 e/kWh)之间的复杂关系,以确定HGV中使用电力/电力燃料具有经济和环保意义的场景。对于续航里程小于450km的车辆,电池电动HGV在电费低于100€/MWh的情况下实现了最低的总体拥有成本。对于续航里程高达900km的车辆,氢燃料电池HGV表现出最低的长期碳减排成本。当低成本电力高容量可用且燃料产生的CO2捕集成本低于100€/t CO2时,使用电力转化的甲烷和液态低碳燃料的发动机具有可观的经济竞争力,这些燃料可能更适用于航运和航空的节能减碳。以柴油机作为基准,电池电动HGV减少了50%的温室气体排放,其电力排放量为350g CO2 e/kWh。对于使用电力转化的甲烷和液态低碳燃料的发动机,其排放需要低于35g CO2 e/kWh,以满足欧盟减排标准。高昂的投资成本和燃料补充基础设施的缺乏可能会阻碍HGV低碳电力燃料和动力系统的初期发展。

更多关于"GHG emissions"的研究请见:

https://www.sciencedirect.com/search?qs=GHG%20emissions&pub=Advances%20in%20Applied%20Energy

Abstract

Uncertainty surrounding the total cost of ownership, system costs, and life cycle environmental impacts means that stakeholders may lack the required information to evaluate the risks of transitioning to low-carbon fuels and powertrains. This paper assesses the life cycle costs and well-to-wheel environmental impacts of using electricity and electrofuels in Heavy Good Vehicles (HGVs) whilst considering input parameter uncertainty. The complex relationship between electricity cost, electrolyser capacity factor, CO2 capture cost and electricity emissions intensity is assessed within a Monte Carlo based framework to identify scenarios where use of electricity or electrofuels in heavy goods vehicles makes economic and environmental sense. For vehicles with a range of less than 450 km, battery electric vehicles achieve the lowest total cost of ownership for an electricity cost less than 100 €/MWh. For vehicles that require a range of up to 900 km, hydrogen fuel cell vehicles represent the lowest long-term cost of abatement. Power-to-methane and power-to-liquid scenarios become economically competitive when low-cost electricity is available at high-capacity factors and CO2 capture costs for fuel synthesis are below 100 €/t CO2; these fuels may be more applicable to decarbonise shipping and aviation. Battery electric HGVs reduce greenhouse gas emissions by 50% compared to the diesel baseline with electricity emissions of 350 g COe/kWh. Electricity emissions less than 35 g CO2 e/kWh are required for the power-to-methane and power-to-liquid scenarios to meet EU emissions savings criteria. High vehicle capital costs and a lack of widespread refuelling infrastructure may hinder initial uptake of low-carbon fuels and powertrains for HGVs.

Keywords

Heavy goods vehicles

Electrofuels

Total cost of ownership

GHG emissions

Levelised cost of carbon abatement

Monte Carlo analysis

Graphics


Fig. 1. Pathways for electricity use in heavy goods vehicles.

Fig. 4. Vehicle capital cost calculation concept.

Fig. 13. Relative total system costs of battery electric vehicles (BEV), hydrogen fuel cell electric vehicles (HFCEV), internal combustion engine power-to-methane (ICE-PtM), and internal combustion engine power-to-liquid (ICE-PtL) heavy goods vehicles compared to the diesel baseline for (a) 2025, (b) 2030, and (c) 2040.

Fig. 14. Relative well-to-wheel greenhouse gas emissions of electricity and electrofuels in HGVs as a function of electricity emissions intensity (2025).

Fig. 16. Electricity supply required to power a single BEV, HFCEV, ICE-PtM, or ICE-PtL HGV.

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