scholarly journals Sustainable Jet Fuel Production: Using Pumpkin Seed Oil

TEM Journal ◽  
2021 ◽  
pp. 879-882
Author(s):  
Sinem GÜRKAN AYDIN ◽  
Arzu ÖZGEN
Keyword(s):  
Greenhouse Gas ◽  
Seed Oil ◽  
Renewable Energy Sources ◽  
Jet Fuel ◽  
Energy Sources ◽  
Pumpkin Seed ◽  
Biological Origin ◽  
Important Place ◽  
Pumpkin Seed Oil ◽  
Environment Sustainability

Biofuels are fuels of biological origin, and they are among the prominent energy sources from renewable energy sources in recent years. Unlike fuels such as petroleum derivatives, coal, natural gas, biofuels are renewable and sustainable energy sources. Biofuels can be obtained by thermochemical or biochemical methods from agricultural and forestry products, animal and vegetable residues and wastes, organic origin domestic, industrial and urban wastes. Global warming caused by greenhouse gas effect is today shown as the most important common environmental problem in the world. The most important advantage of using biofuels in environmental terms is that there will be a reduction of greenhouse gas impact and acid rain. In this study, it is aimed to produce and characterize jet fuel by converting from pumpkin (Cucurbita pepo) seed oil, which is a sustainable bio energy source, into biofuel, by transesterification method. It has an important place in matters such as environment, sustainability, and reduction of carbon emissions. Biojet fuel produced using pumpkin seed oil, which is a sustainable resource, is a candidate product for development and commercialization.

The antioxidant effects of pumpkin seed oil on subacute aflatoxin poisoning in mice

2011 ◽  
Vol 28 (12) ◽  
pp. 681-688 ◽  
Author(s):  
Gökhan Eraslan ◽  
Murat Kanbur ◽  
Öznur Aslan ◽  
Mürsel Karabacak
Keyword(s):  
Seed Oil ◽  
Pumpkin Seed ◽  
Pumpkin Seed Oil ◽  
Antioxidant Effects

scholarly journals Advances in Underground Energy Storage for Renewable Energy Sources

2021 ◽  
Vol 11 (11) ◽  
pp. 5142
Author(s):  
Javier Menéndez ◽  
Jorge Loredo
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Energy Storage ◽  
Natural Gas ◽  
Greenhouse Gas ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The European Union ◽  
Coal Fuel

The use of fossil fuels (coal, fuel, and natural gas) to generate electricity has been reduced in the European Union during the last few years, involving a significant decrease in greenhouse gas emissions [...]

scholarly journals THERMODYNAMIC ANALYSIS OF WIND CATCHER WITH COOLING PADS USING SSG REYNOLDS STRESS TURBULENCE MODEL.

2021 ◽  
Author(s):  
Agarwal A ◽  
◽  
Pitso I ◽  
Letsatsi M.T ◽  
◽  
...  
Keyword(s):  
Reynolds Stress ◽  
Turbulence Model ◽  
Energy Requirement ◽  
Renewable Energy Sources ◽  
Thermal Conditions ◽  
Energy Sources ◽  
Cfd Analysis ◽  
Open Design ◽  
Air Inlet ◽  
Environment Sustainability

With increase in energy requirement, the researchers are looking for energy efficient passive ventilation techniques. The current design concept is based on environment sustainability and use of renewable energy sources is preferred over conventional energy sources. The current research investigates the wind catcher design with cooling pads using techniques of Computational Fluid Dynamics. The CAD model of wind catcher is designed using Creo design software and CFD analysis is conducted using ANSYS CFX software. The CFD analysis is directed at different air inlet velocities and SSG Reynolds stress turbulence model under steady state thermal conditions for both side open design and singe side open designs. The cooling pads have successfully reduced temperature up to 1.65 degrees for single side opening and 2.86 degrees for double side opening design. Maximum air flow rate is achieved with higher air inlet velocities for both design types.

scholarly journals Determination of sesame oil, rice bran oil and pumpkin seed oil in ternary mixtures using FTIR spectroscopy and multivariate calibrations

Food Research ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 135-142 ◽  
Author(s):  
Irnawati ◽  
S. Riyanto ◽  
S. Martono ◽  
Abdul Rohman
Keyword(s):  
Root Mean Square Error ◽  
Rice Bran ◽  
Seed Oil ◽  
Rice Bran Oil ◽  
Sesame Oil ◽  
Ftir Spectra ◽  
Ternary Mixtures ◽  
Mean Square ◽  
Pumpkin Seed ◽  
Pumpkin Seed Oil

Pumpkin seed oil (PSO), rice bran oil (RBO), sesame oil (SEO) are considered as functional oils due to its biological activities which are beneficial to human health, as a consequence, these oils had the higher price. This attracted unethical players to blend these oils with lower price oils, therefore, its authentication by analysis of purity levels of oils is very important. This study highlighted the potential application of FTIR spectroscopy and multivariate calibrations for analysis of PSO, RBO, and SEO in ternary mixtures. Individual FTIR spectra of studied oils as well as in ternary mixtures with certain compositions were scanned and pre-processed. Two multivariate calibrations of principle component regression (PCR) and partial least square regression (PLSR) were compared and used to build the prediction models at optimized FTIR spectra regions. The selection of multivariate calibrations, wavenumbers region, and FTIR spectra modes was based on the statistical parameters of highest R2 and lowest values of root mean square error of calibration (RMSEC) and root mean square error of prediction (RMSEP). The results showed that PLSR using second derivative FTIR spectra at wavenumbers region of 3100-2750 and 1500-663 cm-1 was used to predict the levels of PSO in ternary mixtures with RBO and SEO with R2 > 0.99 in calibration and validation models along with RMSEC value of 0.0054% and RMSEP of 0.0179%. FTIR spectra using the second and first derivatives at wavenumbers of 3100-650 cm-1 were used for prediction of RBO and SEO in ternary mixture with PSO, respectively. It can be concluded that FTIR spectra combined with PLSR at certain wavenumbers region are accurate as indicated by high R2 values and precise as indicated by low values of RMSEC and RMSEP for analysis of PSO, RBO and SEO in ternary mixtures.

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