Keyword: simulation

3 results found.

Research Article
Modeling Future Impacts on Land Cover of Rapid Expansion of Hazelnut Orchards: A Case Study on Samsun, Turkey
European Journal of Sustainable Development Research, 2022, 6(4), em0193,
ABSTRACT: Land-use/land-cover (LULC) simulation models predict the long-term effects of LULC changes under various scenarios. Patch-level land use simulation (PLUS) is a recently developed software that uses a rule-mining framework for LULC modelling. With a market share of 76% in the world, hazelnut is a strategic crop for Turkey. The hazelnut orchards have grown in Turkey since the first law was issued on 21 October 1935. This study was carried out to model the hazelnut orchards for 2030, 2042, 2054, and 2066 based on Samsun province and show the future impacts on land use types. Samsun was chosen as a case study due to the rapid expansion of hazelnut groves since 2006. According to PLUS results, by the year 2030, the increase in the hazelnut groves in Samsun is predicted as 9.38%, and hazelnut fields will be formed by the main transformation of open spaces with little or no vegetation, shrub and/or herbaceous vegetation associations, and forest; and this transformation will have severe effects on the ecosystem. The results clearly showed that hazelnut cultivation areas would continue to increase in the future and revealed that policymakers would need to conduct new regulations for environmental sustainability and to maintain Turkey’s power in this crop.
Research Article
Numerical Simulation of Wind Impacts on Building Blocks: Towards Sustainable Architecture Strategies
European Journal of Sustainable Development Research, 2019, 3(4), em0096,
ABSTRACT: The study of wind behavior around tall buildings is a critical issue in architectural and structural design. Therefore, Tall modern buildings are extremely sensitive to the wind. Thus, the assessment of wind loads to design these buildings is essential. Monitoring the wind, which is forcing extraordinary tall buildings is highly challenging. By looking at recent constructions in Iran, it is obvious that despite the fact that constructing tall buildings is spreading, there is less concentration on environmental factors such as wind’s aerodynamic. The purpose of this study is to introduce a theoretical framework. Hence, by using CFD simulation, investigating on wind speed in various regions of the tall-triangular building have been focused. Finally, Autodesk Flow Design 2014 software is utilized to present a CFD simulation of a building model with a triangular footprint, Rounded Corner aerodynamic correction, and Set-back aerodynamic form. These simulations have been looking forward to finding out about how can aerodynamic forms affect pressure zone reduction in buildings and reduce wind flow pattern in urban regions.
Research Article
A Thermodynamic Study of Rice Husk (Oryza Sativa) Pyrolysis
European Journal of Sustainable Development Research, 2019, 3(4), em0094,
ABSTRACT: Rice (Oryza sativa) is one of the major agricultural products of tropical West Africa in general and Nigeria in particular. In this study ASPEN plus V8.8 was used to develop a thermodynamic model for the pyrolysis of rice husk. The model was validated and found to be accurate especially on the domain of oil and gas yields. It was used to study the effect of temperature on the product yield and oil composition. The fluid products increase with temperature and an optimum of 60% can be obtained from rice husk. The optimum oil yield was 44.2% obtained at 400°C. The synthesis gas was composed basically of hydrogen gas, methane and traces of higher hydrocarbons, the char consisted of carbon and silicon oxide ash while the oil was made-up of acidic organic compounds, aldehydes, pyrolytic water and others. At 600°C, the predictions revealed an oil composition of 84.7% acids, 7.9% pyrolytic water, 7.42% aldehyde and traces of alcohol and other compounds. The results from the thermodynamic predictions showed that rice husk is an excellent feedstock for the biofuels production via the thermo-chemical energy conversion route. The study has provided a useful framework for proper comparisons of the energy potential between different biomass feedstock.