- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
[IEEE 2019 International Conference on Electrical Engineering and Computer Science (ICECOS) - Batam Island, Indonesia (2019.10.2-2019.10.3)] 2019 International Conference on Electrical Engineering and Computer Science (ICECOS) - Hybrid Energy Utilization of Photovoltaic with Jatropha Curcas Oil-Based Biofuel for Supporting Electrification on Sumba Island
摘要： Jatropha curcas L. (Jatropha) is a plantation which growth well in tropical countries, such as Indonesia. According to the recent studies, Jatropha seeds can yield oil, however raw Jatropha oil needs transesterification process, results in Jatropha Methyl Ester (JME), in order to reach suitable properties as biofuel and substitute diesel fuel for generating electricity, especially for area that is lack in electricity or low of electrification ratio. Meanwhile, Sumba is one of thousand islands in Indonesia that is still lack of electricity access but rich of solar energy potential, hence suitable for photovoltaic (PV) energy development. This study aimed to explore the potential hybridization of PV system with JME based biofuel. In order to reach this milestone, author analyzed properties of JME in comparison to those of diesel fuel and unveil several benefits of Jatropha, particularly related to the utilization for energy alternative. Analysis of the hybrid system was carried out by applying HOMER simulation. In addition, literature study of recent observations was also used for this study. According to NASA Surface meteorology and Solar Energy database, annual average of solar Global Horizontal Irradiance (GHI) in the Sumba island is 5,84 kWh/m2/day which is potential for PV utilization. On the other hand, Jatropha seeds can produce biofuel for generator. Subsequently, combination of PV and Jatropha based fuel generator yields NPC and COE of US$ 46,283 and US$ 0.248 respectively, which is much lower in cost than single feed diesel generator. This hybrid system will also potentially reduce gas emission of hydrocarbon fuel. Finally, combination of both PV system and Jatropha oil-based biofuel shows bright prospect of energy alternative as well as support electrification access for Indonesian society.
关键词： hybrid,COE,NPC,Jatropha Curcas,biofuel,HOMER
更新于2025-09-23 15:21:01
-
Optical study of laser biospeckle activity in leaves of Jatropha curcas L.: a non-invasive and indirect assessment of foliar endophyte colonization
摘要： Currently, the detection of endophytic fungi is mostly determined by invasive methods, including direct isolation of fungal organisms from plant tissue in growth media, molecular detection of endophytic fungi DNA from plant material by PCR, or evaluation using microscopy techniques. In this work, we explore the potential of laser biospeckle activity (LBSA) for the detection of endophytic colonization of leaves of a promising energy crop, Jatropha curcas L. We compared the laser biospeckle activity of endophyte infected and uninfected J. curcas leaves. The differences between blade and veins (including midrib) of the studied leaves were validated and growth parameters of the studied plants were also analyzed using the normalized weighted generalized differences coefficient (nWGD), which characterizes a particular laser bioactivity behavior. The obtained results showed a relationship between the endophytic burden of leaves and the LBSA, suggesting that LBSA is a useful tool to indirectly detect endophytic colonization in situ. Also, the increased water movements inside leaves promoted by endophytic colonization could be explained by the obtained data.
关键词： Foliar endophyte colonization,Jatropha curcas,Water movement,Laser biospeckle activity,Normalized weighted generalized differences
更新于2025-09-19 17:13:59