Journal
APPLIED SCIENCES-BASEL
Volume 12, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/app12125869
Keywords
energy efficiency; diesel-electric train; photovoltaic solar panel; emission reduction
Categories
Funding
- Government of Canada through Transport Canada Clean Transportation Program-Research and Development
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This paper studies a new method to improve the energy efficiency of diesel-electric trains using photovoltaic solar panels. The results show that the solar panels can cover over 50% of the energy demand in all cases and even provide over 100% of the energy in certain routes and wagon classes. This solution proves to be feasible and profitable in reducing greenhouse gas emissions.
Nowadays, productivity challenges in modern manufacturing systems have been the driving force in generating energy-efficient technologies in every industry, including diesel-electric locomotives. The diesel-electric locomotive is one of the most widely used methods in rail transportation, especially in North America. More precisely, the evolution of the electric transmission has allowed the locomotive's effective tractive effort to increase its diesel engine horsepower. In this paper, we study a new way to improve the energy efficiency of diesel-electric trains using photovoltaic solar panels. This solution is suitable for reducing greenhouse gas emissions of the diesel-electric locomotive system, particularly in cold climates. We explore the amount of energy produced by the PV solar panels and compare it with that produced by the auxiliary diesel-generator during a train's journey. This comparison clarifies the actual percentage of energy that solar panels can cover. Thus, this paper presents a validation of feasibility and profitability as a function of the train's specific operating conditions and the meteorological data associated with their routes. Based on the results, the minimum annual fuel reduction of auxiliary generators allowed using PV solar panels is above 50% in all cases and wagon classes, proving this solution's feasibility. Regarding the comparison, case 3 (Sept-iles to Schefferville) and case 4 (Luxor to Aswan) are the best, with over 100% of the energy provided by PV solar panels in all the wagons' classes. The payback period ranges from 2.5 years to 9.1 years, while the CO2 emission reduction's revenues range from $460 to $998 per year/wagon.
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