scholarly journals Economics of Biodiesel Production in the Context of Fulfilling 20% Blending with Petro-Diesel in Nepal

2014 ◽  
Vol 10 (1) ◽  
pp. 80-93
Author(s):  
Ranjan Parajuli

The article has attempted to introduce Jatropha curcas as one of the energy resource for partially substituting Petro-diesel in Nepal and is prepared to provide preliminary insight on the economics of biodiesel production in the country. There have been increasing trend of automobiles in the last two decades, which has also increased the total import volume of Petro-diesel in Nepal. The dependency on imported Petro-diesel and its escalating price is adversely affecting the national economy. To fulfill the 20% blending requirement of the Petro-diesel consumed in 2011 in the country, 4% of the uncultivated land of the country (representing terrain and hills only) are sufficient. With this realization, this article is prepared by the development of different scenarios in regard to substitution of 20% Petro-diesel in the country. The Scenarios basically comprise of price of seedlings required for cultivation, different yield of Jatropha plant, and the price of raw oil seeds required for processing. Prognosis of Petro-diesel consumption in the next 20 years is carried out considering the average growth rate of its sales in the last decade in the country, and further required volume of biodiesel required for blending is estimated. Techno-economic analysis carried out in this article has revealed that biodiesel can be economically produced with input parameters (plant yield greater than 2 kg/plant and with the price of oil seeds lower than 0.22 USD/kg). The return on the investment in the bio diesel production and its utilization is also positive with these input parameters. The study estimated that production of biodiesel in the present context of increasing fuel prices and depleting resources, is an economically viable option, however, there is need of strong policy to entertain potential entrepreneurs and farmers for generating resource required for the partial substitution and also to look after the issues of food insecurity during the process of generating this resource.DOI: http://dx.doi.org/10.3126/jie.v10i1.10881Journal of the Institute of Engineering, Vol. 10, No. 1, 2014, pp. 80–93

Author(s):  
Oyetola Ogunkunle ◽  
Noor A. Ahmed ◽  
Tsepo S. Mputsoe

Global increase in fuel prices and the associated problem of harmful emissions from combustion of fossil fuels has necessitated the need for more energy sources to sustain energy security and mitigate the negative environmental implications from the continuous use of petroleum diesel. This research is primarily focused on the production of biodiesel from Melia azedarach oil, which has not been much explored as a feedstock for diesel substitute. In consideration of the nutritional demands for edible oil seeds, the use of edible vegetable stock to produce biodiesel raises major ethical concerns with non-edible oil seeds presenting more feasible solution to energy crises. Oil was extracted from Melia azedarach seeds by exploring both mechanical and chemical methods. Biodiesel was produced from the extracted oil via alkali alcoholysis. An innovative Ultraviolet-Visible Spectroscopy (UV-VIS) was adopted as a process tracking mechanism for biodiesel production. An oil yield of 4.32% of crude oil was extracted using n-hexane under an extraction time of 24h and temperature of 55°C. Esterification parameters of 45:1 Molar concentration of alcohol to oil, reaction temperature of 53°C, a reaction time of 50 mins and concentrated sulphuric acid weight fraction of 5% gave a free fatty acid conversion of 89.37%. Based on the results obtained, the seed oil has been established as a promising feedstock with promising efficiency for biodiesel production. However, large scale extraction of oil from the seed for industrial production of biodiesel must be further investigated.


2019 ◽  
Vol 17 (1) ◽  
pp. 1185-1197 ◽  
Author(s):  
Ansori Ansori ◽  
Sasmitha Ayu Wibowo ◽  
Heri Septya Kusuma ◽  
Donny Satria Bhuana ◽  
Mahfud Mahfud

AbstractFossil fuel is the main energy resource in Indonesia with oil as the dominant fuel (44.1% of primary energy consumption) in 2017. But fossil fuel is not environmentally friendly and non-renewable. Thus, there is a need for alternative renewable fuels such as biodiesel. Biodiesel from nyamplung (Calophyllum inophyllum L.) oil can provide a promising future as a renewable fuel resource. The used of CaO catalyst from eggshell waste is also profitable, and microwave radiation can help the biodiesel production process run more effectively. Optimization of parameters such as microwave power, catalyst concentration, and transesterification time was performed by using Box-Behnken design. Combinations between biodiesel production from nyamplung oil with CaO catalyst using microwave and treated with Box-Behnken design is considered a new and modern method with optimization of the parameters which affect the transesterification process. The result showed that at a microwave power of 325.24 W, a concentration of catalyst of 3.88%, and a transesterification time of 12.47 min can produce an optimal yield of biodiesel of 98.9079% with the reliability of 92.37%.


2020 ◽  
Vol 259 ◽  
pp. 120729 ◽  
Author(s):  
Shahzad Ali ◽  
Tahir Fazal ◽  
Fahed Javed ◽  
Ainy Hafeez ◽  
Mueed Akhtar ◽  
...  

2018 ◽  
Vol 213 ◽  
pp. 04002
Author(s):  
Hussein M. Ali ◽  
Asif Iqbal

Nowadays the usage of gasoline as an energy resource is one of the most important subjects in the engineering field. A car is one type of energy consumer. Energy is used to build the cars and to running it. The fuel prices are fluctuate, so it seems sensible to explore every avenue towards saving energy in cars making. and study the factors that affect its consumption. The aim of the present work is to explain theoretically the calculation of fuel saving and cost in a car passengers in a greater detail than it has been done before and to describe statistically the affecting factors upon it. A statistical analysis has been used to study the influence of the weight and acceleration of the car upon the fuel consumption. It was shown that the fuel consumption increases linearly with the increase of a car weight and accordingly, the cost per unit travel of the car will increase.


2019 ◽  
Vol 83 (2) ◽  
pp. 165-175
Author(s):  
Sumreen Dawood ◽  
Mushtaq Ahmad ◽  
Muhammad Zafar ◽  
Muhammad I. Ali ◽  
Khalid Ahmad ◽  
...  

2011 ◽  
Vol 15 (6) ◽  
pp. 3041-3044 ◽  
Author(s):  
M. Safieddin Ardebili ◽  
B. Ghobadian ◽  
G. Najafi ◽  
A. Chegeni

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