TR Dizin İndeksli Yayınlar Koleksiyonu / TR Dizin Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14365/4
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Article Citation - WoS: 1Life Cycle Assessment of Tomato Paste Production: a Case Study(Pamukkale Unıv, 2024) Üçtuğ, Fehmi Görkem; Tekin, Zehranur; Dayıoglugil, Zeynep; Ulusoy, Ercan; Oktaylar Keyik, Şule; Keyik, Sule OktaylarThis study involves the cradle -to -gate life cycle assessment of tomato paste production in Turkey. All the data was obtained from a large-scale production company located in north-west Turkey in 2020. CCaLC software with Ecoinvent2 database alongside CML2001 method was used for the analysis and the following impacts were taken into account: acidification potential, carbon footprint, eutrophication potential, human toxicity potential, ozone layer depletion potential, and photochemical smog potential. Functional unit was chosen as 1 kg of tomato paste sold in glass jars. The results show that the biggest contributor to environmental impacts was the raw material supply stage, mainly due to fungicide (for agriculture) and metal (for packaging) use. Energy required for agricultural and production processes were also found to have significant effects of the impacts. The results were found to be in very good consistency with earlier literature. Using photovoltaic panels for meeting 10% of the electricity demand of agricultural and production processes or utilizing tomato harvesting waste to produce biomethane were found to have almost no positive effects as far as impact reduction is concerned. These results show that switching to organic farming seems to be essential if environmental impacts of processed food products such as tomato paste are to be reduced.Article Promoting Utilization of Biofuels in the Transportation Sector To Reduce Co2 Emissions: Comparative Analysis(Gazi Univ, 2022-12-16) Bozbay, Utku; Güngörmüşler, MineIn this study, due to the high contribution of the transportation sector to generate CO2 emissions, an evaluation for the best scenario of the replacement of petroleum derived fuels by renewable and sustainable alternatives was assessed with a multi collative approach suggesting the second-generation bioethanol as the most promising one. In this context, this paper focused on the practices over the past 23 years in the following four countries; Turkey, China, Sweden, and Brazil, with a comparative regression analysis between the CO2 emissions generated from the consumptions of total energy and biofuels. Accordingly, a curve-fitting and an estimation on the formation of CO2 emissions with the incrementing blends of gasoline by 3 to 100% of bioethanol was forecasted for 2020 to 2030. The outcomes of the comprehensive research indicated the international and national benefits of biofuel use, thus, promoting the potential integration of bioethanol in the Turkish transportation sector.Article Enriching Learning Experience Through Multidisciplinary Design Education: Structure Proposal for a Landscape Design Course(2020-07-01) Kaştaş Uzun, İpek; Uzun, Ipek KastasDesign related fields are quite intricate and it is hard to define strict boundaries in between thesedisciplines which cause the necessity of collaboration. Especially during professional careers, designerswork in multidisciplinary environments where they need to develop responses collaboratively. However,undergraduate design education is being criticized for missing to fulfill this need. The aim of this paperis to discuss the role and benefits of multidisciplinary design education with the example of the coursenamed “An Introduction to Contemporary Architectural Landscaping”. As the methodology of thepaper, through deconstruction of the 3 parted course structure and analysis of student works, this paperanalyses the role of a multidisciplinary education on students’ learning experiences. First two parts ofthe course focus on technical aspects of landscape architecture discipline, and cultural, physiologicaland psychological effects of landscape projects for users. Last part of the course focus on creating aplatform for students to work in collaboration with other students to gain practical experience in designfield where they develop a landscape architecture project on sites from their near environments. Thereare three main findings of the study. Firstly, inclusion of students from different disciplines in the samecourse increases the success rate via cross-learning experiences. Secondly, during design education,having the chance of participation to courses from different disciplines help to broaden students’perspectives on problem solving during design phase. Finally, projects in environments that studentsexperience in their everyday life increase their success rates. Results of the study that is based on theoutcomes of the course that is conducted with the students of two different design departments indicatethat this course structure and projects that are designed can be a guide for other design courses to developa multidisciplinary course structure to include students from different disciplines, enrich their learningexperiences and success after graduation.Article Experimental Investigation of the Partial Vegetation Effect on the Flood Wave Propagation Resulted From Dam Failure in Urkmez Residential Area by Means of Distorted Physical Model(2021-09-15) Güney, Mehmet Şükrü; Sevinç, EmrahThe purpose of this study is to investigate the effect of partial vegetation on the wave propagationresulted from sudden dam failure in a residential area. Temporal variations of water depths and floodwave propagation velocities were determined and compared with those obtained from theexperiments performed without vegetation. The experiments were performed on the distortedphysical model of Urkmez Dam and its downstream region. The distorted physical model withhorizontal scale of 1/150 and vertical scale of 1/30 contains the dam reservoir, the dam body, theresidential area of Urkmez coastal town until the sea and the partial vegetation. In the model, thereservoir has an active volume of 11.222 m3, the dam body has a length of 2.84 m and a height of 1.07m, and the downstream area is nearly 200 m2. Water depths were measured by e+ WATER L levelsensors placed at various locations of the downstream region. Velocities were measured by ultrasonicvelocity profilers (UVP) located near the level sensors. Flood wave propagation was recorded by thehigh definition digital camera. Experimental findings obtained from the physical model wereconverted to the prototype values, in nature. The changes in water depths and elapsed times, also thechanges in velocities and their occurrence times were determined for different zones of thedownstream area in the presence of vegetation. The experimental results revealed that in such a damfailure, the flood arrives at the sea in 6 s in the absence of vegetation, while in 10 s in the presence ofvegetation. These values correspond to 2.74 min and 4.57 min, respectively in the prototype. Theexistence of vegetation resulted in decrease in flood propagation velocities mainly in the denseresidential area, as expected. It was observed that the maximum water depths were increased at theleft bank and decreased at the right bank, except at level sensor S6 which is very close to the creek. Itwas observed that the maximum depth averaged velocities were decreased in the sparse and denseresidential areas. The existence of the vegetation changed considerably the local velocities duringrising and recession stages of the water depth. It was found that the order of magnitude of theprototype velocities was high and such velocities can cause serious damage mainly in the buildingsclose to the dam body. Because the presence of vegetation caused a decrease in flood propagationvelocities in the sparse and dense residential areas, it would reduce the damages on the buildings inthese areas.Article Is Production or Consumption the Determiner? Sources of Turkey’s Co2 Emissions Between 1990-2015 and Policy Implications(2021-09-29) Alkan, Ayla; Oğuş Binatlı, Ayla; Binatli, Ayla OgusTurkey’s CO2 emissions have been steadily increasing since the 1990s. Determining influences of socioeconomic factors behind thisincrease can help identify which sectors and what types of policies should be prioritized to go into action. This paper identifies themain contributors to CO2 emissions change within five-year intervals during 1990-2015 by adopting the Structural DecompositionAnalysis (SDA) method. The results show that CO2 emissions increase was driven by per capita expenditure and population factors,while emission coefficient factor had a reducing effect on emissions. As the production side factors fell pretty behind theconsumption side factors, net emissions were positive and the actual determiner in CO2 emissions was found as consumption. Themost contributing sectors were Electricity, Land Transportation and Mineral. Speeding up renewable energy investments andcontinuing energy efficiency measures, placing a carbon tax on electricity and oil consumption, promoting public transport and useof clean fuels and vehicles, slowing down construction and raising consumer awareness to change their consumption behavior,particularly to reduce demand for high emitting products and services should be the top priority policies.