Adnan Degirmencioglu

Adnan Degirmencioglu
Ege University · Department of Agricultural Engineering & Technology

Ph.D.

About

50
Publications
16,217
Reads
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971
Citations
Additional affiliations
July 2009 - March 2011
Ege University
Position
  • Chair

Publications

Publications (50)
Article
Full-text available
The objective of this study was to find out the performance of a seeding unit metering coriander seeds (Coriandrum sativum L.) with a fluted roll. As a first step for the determination of the performance of the metering unit, flow rate measurements were achieved at a combination of five roll lengths and ten different rpm values with three replicati...
Chapter
Full-text available
Su, enerji ve gıda birbirleri ile etkileşim halinde kaynaklardır. Bu etkileşim su-enerji-gıda bağı (nexus) kavramı olarak 2010’ların başı itibariyle çalışılmaya başlamıştır. Gıda ve Tarım Örgütüne (FAO) göre, gıda-enerji-su kaynaklarını birbirleri arasındaki çeşitli bağlantılar düşünülerek ele almak, karmaşık ve birbiriyle ilişkili doğal kaynak sis...
Article
Full-text available
The objective of this study was to develop mathematical functions to predict deflection for radial and bias tires. In order to develop the models, the data were obtained from the tire manufacturing companies and organized in Excel first and then transferred to Minitab® for stepwise regression analysis. The variables considered in the study were inf...
Article
Full-text available
The objective of this study was to provide the basic data related to the tractor such as power ratios and annual use along with the production pattern, type of farms, farm size and their fragmentation, soil properties. In order to meet the above objective a survey study was conducted in 2013 in four provinces of the Aegean region namely Aydın, Deni...
Article
Full-text available
The objective of this study was to compare computational fluid dynamics (CFD)-based simulations and visualized seed trajectories in different seed tubes that can provide seed incorporation into the soil with enhanced seed spacing. The other objective was to determine the relation between the seed trajectories and peripheral speed of the vacuum disk...
Article
Full-text available
The objective of this study was to develop a mathematical model for predicting the volumetric efficiency for fluted rolls metering different crop seeds. A special test stand was designed and manufactured in order to conduct experiments in order to find out the volumetric efficiency of the fluted rolls. In order to meet the above objective, alfalfa,...
Conference Paper
Full-text available
The objective of this study was to reveal the concept water, energy and food (WEF) nexus approach for sustainable agriculture. Water, energy and food are linked to one another since an output from one can be an input to another. Water can be used for irrigation purposes while it is also used for energy production. Some crops are also used for energ...
Article
Full-text available
The aim of this study is to create a spatial database of basic values related to the level of agricultural mechanization with analyzable correlations. This will be helpful for decision-makers for producing policies to be followed in developing the agricultural structure of Kır¸sehir region. The agricultural mechanization status in Kır¸sehir was inv...
Article
Full-text available
This study assesses the sustainability of crop production system in Gediz Basin, Turkey and develops forward-looking scenarios for optimal utilization and sustainable allocation of its resources using the water, energy, and food (WEF) Nexus holistic systems approach. Gediz basin data for the year 2014 are used to analyze the current situation and t...
Article
This paper reveals the results of a study performed on a three-bottom moldboard plough in order to measure the strains in field measurements by means of bounded strain gages on different parts of the moldboard frame and compares them with the results of finite element simulations. It was found that the reduced thickness of the moldboard frame did n...
Conference Paper
The uniformity of seed flow that affects accuracy of seed spacing is the key indicator to evaluate the success of fluted roller design. Constructional, operational parameters and the properties of the seeds are effective in seed flow uniformity. In this study, relation of seed flow uniformity of canola, onion and carrot seeds with coefficient of va...
Article
Full-text available
The objective of this study was to design and develop a prototype twin vacuum disk metering unit so that seeding can be achieved at higher forward speeds while reducing the peripheral speed of the vacuum disk for improved seed spacing uniformity performance and increased field work capacity. In order to meet this objective, a new precision seeding...
Conference Paper
In the face of changing climates and increasing global population, an adequate food supply depends not only on increasing food production but also optimal utilization of natural resources. Water, energy, and food are interrelated and absolutely connected factors. Water is an important input for agricultural production while energy is the important...
Conference Paper
Full-text available
The amount of material flow rate from a fluted roller could be considered as a simple phenomena but the problem actually is complex since many factors contributes to this physical system. In such a system; constructional, operational parameters and the properties of the material being conveyed determine the flow rate. The constructional parameters...
Article
The objective of this study was to investigate key relations between tractor utility and production activities; crop pattern, culture, etc., and soil characteristics which are basics of mechanization layer of the dynamic land and agricultural planning using GIS technology. A survey based study was conducted in the Aegean Region (in the provinces of...
Article
Full-text available
Öz The objective of this study was to optimize the seed spacing uniformity performance of a precision seeder using spherical materials and Response Surface Methodology (RSM) and to verify the optimum levels of the variables. The variables considered in the study included vacuum on seed plate, the diameter of seed holes and peripheral speed of the...
Article
The objective of the study was to determine the seed spacing uniformity performance of a precision metering unit when vacuum plates with different number of holes were used. In order to meet this objective, the performances of vacuum plates with different number of holes were evaluated in the laboratory conditions by employing sticky belt tests and...
Conference Paper
Full-text available
Fluted rollers are the one mostly used in seed and fertilizer metering devices in random seeder. Small seeds planted in Turkey have high costs and planting such seeds should be achieved in order to adjust the seed rate accurately. Hence, designers need some prediction functions that include variables related to construction, operating conditions al...
Conference Paper
The objective of this study was to investigate key relations between tractor utility and production activities; crop pattern, culture, etc., and soil characteristics which are basics of mechanization layer of the dynamic land and agricultural planning using GIS technology. A survey based study was conducted in the Aegean Region (in the provinces of...
Article
Full-text available
The objective of this study was to develop empirical functions in order to predict and compare vacuum drops in b and dphase and in claw (or junction point) unconventional and quarter individual milking systems using response surface methodology (RSM). The independent variables considered in the study included the system-working vacuum, pulsation ra...
Article
Full-text available
Sustainable agriculture integrates three main goals; environmental health, economic profitability, and social and economic equity (Feenstra, 2012) and is an alternative way of production in an ecological way. Agricultural mechanization involves the use of tools and machine to improve efficiency of human time and labor without degrading quality of t...
Article
Full-text available
Currently the most widely used machine for precision seeding of cotton and maize seed is vacuum type. The capture of seeds by vacuum plate and the release of seeds from the vacuum plate should be performed precisely without missing or doubling. The physical phenomena should be clarified theoretically to understand how the precision seeding mechanis...
Article
Full-text available
An appropriate design of a drip irrigation system in order to increase the uniformity of water distribution with a high efficiency is of importance. The first step for the design is the determination of suitable length of laterals. In order to do this, the emitter characteristics and the friction losses of new designed laterals on which the emitter...
Article
Full-text available
Prevalence of the mechanical harvesting brought about significant changes in the conventional production processes in Turkey especially from the point of row spacing and variety. These changes in the production process increased the importance of picker performance from the point of field operation (quantitative) and effect to the lint quality (qua...
Data
Full-text available
The objective of this study was to develop empirical functions in order to predict vacuum fluctuations in b and d-phase and in claw using response surface methodology (RSM) and to verify the optimum points and the mathematical models for both, conventional and quarter individual milking system. The independent variables considered in the study incl...
Conference Paper
Full-text available
The objective of this study was to develop empirical functions in order to predict vacuum drops in b and d-phase and in claw (or junction point) using response surface methodology (RSM) for both, conventional and quarter individual milking system. The independent variables considered in the study consisted of the system working vacuum, pulsation ra...
Article
Full-text available
The objective of this study was to develop empirical functions in order to predict vacuum fluctuations in b and d-phase and in claw using response surface methodology (RSM) and to verify the optimum points and the mathematical models for both, conventional and quarter individual milking system. The independent variables considered in the study incl...
Article
A model was developed using dimensional analysis, to predict head losses in hydrocyclone filters. Different hydrocyclone filters with different specifications were used to measure head losses at different flow rates in the laboratory. The parameters influencing head losses were considered to be the inside diameters of the inlet and outlet pipes, cy...
Conference Paper
Full-text available
The objective of this study was to optimize the seed spacing uniformity performance of a precision seeder using spherical materials and Response Surface Methodology (RSM) and to verify the optimum levels of the variables. The variables considered in the study included vacuum on seed plate, the diameter of seed holes and peripheral speed of the seed...
Article
Full-text available
Currently the most widely used machine for precision seeding of cotton and maize seed is vacuum type. Thecapture of seeds by vacuum plate and the release of seeds from the vacuum plate should be performed precisely withoutmissing or doubling. The physical phenomena should be clarified theoretically to understand how the precision seedingmechanism w...
Article
Full-text available
The objective of this study was to determine the head losses in several type metal body disc filters manufactured by domestic companies. In order to meet the objective, three different filter designs (L, LT and Y type), each at four different inlet and outlet pipe diameters, were used to measure the head losses at different flow rates in the labora...
Article
A model was developed using dimensional analysis to predict head losses in disc filters. Three different filter designs, each with four different inlet and outlet pipe diameters, were used to measure head losses at different flow rates in the laboratory. The parameters influencing head losses were considered to be the inside diameters of the inlet...
Article
The objective of this study was to optimise the seed spacing uniformity performance of a precision seeder using response surface methodology (RSM) and to verify the optimum levels of the variables. The variables considered in the study consisted of the vacuum on the seed plate, the diameter of seed holes and the peripheral speed of the seed plate....
Article
This paper presents models developed to predict friction head losses in drip irrigation laterals. Some domestic and imported drip irrigation laterals equipped with integrated in-line and on-line emitters placed at different spacings ranging from 0·2 and 1 m were considered in this study. The parameters affecting the variation in friction head losse...
Conference Paper
Full-text available
The objective of this study was to optimize the seed spacing uniformity performance of a precision planter using Response Surface Methodology (RSM) and to verify the optimum levels of the variables. The variables considered in the study consisted of the vacuum on seed plate, the diameter of seed holes and peripheral speed of the seed plate. Cottons...
Article
Bay leaves (Laurus nobilis L.) were dried at 40, 50 and 60°C air temperatures and 5, 10, 15% relative humidities and also under sun and shade in outdoor areas to see whether any significant difference of quality occurs in drying with hot air. During the drying tests with hot air, air flow velocity was held stable at 1·5 m s−1 and the samples were h...
Article
Full-text available
SUMMARY A study was conducted with an objective of developing an automatic watering device that is simple in construction, easily applicable on existing transplanters and economically feasible for many local manufacturers. In order to meet this objective, an automatic watering device was developed and tested in both the laboratory and field. The de...
Article
Full-text available
This paper presents a prediction model developed using dimensional analysis for friction losses in drip irrigation laterals. Drip irrigation laterals with cylindrical type in-line emitters placed at different spacings ranging from 0.2 to 1 m were considered. The parameters affecting the variation in friction losses in laterals were defined as dimen...

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Projects

Project (1)
Archived project
The objective of this study is to determine the core values and key relations related to agricultural mechanization level spatially. The survey study to be conducted in Kırşehir will include sizes and numbers of farm fields, production pattern, numbers, models, power groups of tractors and equipment used with. CBS software will be used to analyze the data provided from surveys and GPS device that will be used to determine the location of the production fields. In order to provide solutions about improving agricultural mechanization level this project will be including promising information. In this context, creating such a database can be updated and further developed for management and decision making process.