نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه ماشینهای کشاورزی دانشکده مهندسی و فناوری دانشگاه تهران کرج ایران
2 گروه ماشینهای کشاورزی دانشکده مهندسی و فناوری دانشگاه تهران کرج-ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study aimed to comprehensively evaluate the potential for producing and using biodiesel extracted from Jatropha plants in Iran's light-duty transport sector. To achieve this goal, an integrated multi-criteria framework was developed, covering technical, economic, environmental (direct emissions), and full life cycle assessment (LCA) dimensions. The technical modeling of the fuel production process was performed using Aspen HYSYS software, economic analysis was conducted using the Total Revenue Requirement (TRR) method with Monte Carlo simulation, and the life cycle assessment was carried out using the IMPACT 2002+ method in SimaPro software. The most prominent findings indicated that although the jatropha biodiesel vehicle holds a relative environmental advantage with a global warming potential of 32.69 grams of CO₂ equivalent per kilometer, it faces two major challenges. First, its high economic cost is reflected in a levelized cost of $0.88 per kilometer traveled (50% higher than gasoline) and a production cost of $1 per liter of biodiesel fuel. Second, the significant emission of nitrogen oxides at 0.721 grams per kilometer traveled poses a concern for air quality. Additionally, substantial land use (15.14 square meters per kilometer) was identified as a key challenge within its life cycle. Consequently, this technology is not competitive as a widespread substitute under current conditions in Iran. However, with smart policymaking and a focus on specific complementary applications (such as fixed-route public transport fleets or agricultural machinery in remote areas), it could play a role in diversifying the country's energy mix and reducing net carbon emissions.
کلیدواژهها [English]
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