Query: Sunflower Harvester

title: Evaluating the Suitability of a Combine Harvester Equipped with the Sunflower Header to Harvest Cardoon Seeds: A Case Study in Central Italy
abstract: Cardoon seeds have been proved to thrive in the Mediterranean region, even under low input management and its biomass is suitable for several food and industrial uses. Despite that, a proper value chain has not been set properly and uncertainty still lays among producers and industries, particularly concerning the harvesting stage. The present study supports, via field trials, the hypothesis that cardoon seeds can be harvested using a conventional combine harvester equipped with the sunflower header. Theoretical field capacity (TFC) effective field capacity (EFC) and field efficiency (FE) were 2.36 ha h 1, 2.05 ha h 1, and 1.82 Mg h 1, respectively, while harvesting costs were calculated as 69.52 EUR ha 1. Seed loss was only 3.2% w/w of the potential seed yield. The machinery's performance, costs, and seed loss are comparable with sunflower harvesting, underlying the possibility to use the available technology directly to harvest cardoon seeds.

title: Comparative evaluation of the operation of a combine harvester with an additional sieve with adjustable holes for sunflower harvesting

title: A HARVESTER TO A BREEDING AND SEEDS GROWING COMBINE FOR SUNFLOWER HARVESTING

title: Source of airborne sunflower dust generated during combine harvester operation
abstract: The sunflower harvest season presents challenges for many farmers when an abundance of airborne dust is carried by surrounding winds and allowed to relocate on equipment surfaces. Combine fires are a serious problem resulting from the ignition of biomass dust that settle and accumulate on the combine harvester. Farmers' anecdotal evidence indicates that harvesting sunflowers can produce more airborne dust than other commodity crops. The source of this airborne sunflower dust was investigated using various methods to analyse different parts of the sunflower: whole heads, outer stalk, and inner stalk pith. These samples were compared to a collected amount of bulk sunflower dust field sample taken directly from a horizontal surface on a combine harvester during the 2011 harvest season. All testing methods; proximate and ultimate analyses, biomass dust particle density analysis, Fourier transform infrared spectroscopy, and scanning electron microscopy; suggest the sunflower bulk field sample is comprised of mostly inner stalk pith rather than dust particles from the outer stalk and whole sunflower heads. By confirming the source of the airborne sunflower dust field sample, the arrangement of combine harvester equipment could be modified to reduce the amount of sunflower dust generated during operation.

title: Self propelled sunflower head harvester
abstract: The invention relates to a self propelled sunflower head harvester. The self propelled sunflower head harvester comprises a travelling mechanism, an operating cab, a harvesting head support, a harvesting mechanism, a transverse conveyor, a longitudinal lifting conveyor, a collector, a hydraulic system and a transmission mechanism. The operating cab is arranged above travelling devices, the harvesting head support is arranged in front of the travelling mechanism, the harvesting mechanism, the transverse conveyor and the longitudinal lifting conveyor are arranged on the harvesting head support, the transmission mechanism is arranged in front of the travelling devices and connected with the harvesting mechanism, a transverse conveying mechanism and a longitudinal lifting conveying mechanism and is connected with the travelling mechanism through a header support, and the collector is disposed at the tail of the travelling devices. The self propelled sunflower head harvester is wide in harvesting amplitude, high in efficiency, energy saving and reliable in operation.

title: DEVELOPMENT OF A CHOPPER UNIT FOR CHOPPING OF SUNFLOWER STALK DURING HARVESTING BY COMBINE HARVESTER
abstract: DALMIS, I. S. B. KAYSIOGLU, Y. BAYHAN, P. ULGER, F. TORUK and F. DURGUT, 2013. Development of a chopper unit for chopping of sunflower stalk during harvesting by combine harvester. Bulg.  The aim of this research was the development of a chopping unit, which is placed under the header of a combine harvester. In this way, stalks can be chopped during harvesting and this will be useful in respect to saving time, labor, and energy. In addition, field traffic will decrease by using this unit.The alternative chopping unit may replace the conventional methods. For this objective, the developed chopping unit was tested in three different types of chopping methods. These methods were called Machine 1, Machine 2 and Machine 3. All methods were tested with two and three blade modules. The best results were obtained with 3 flat blades modules on Machine 2. While the average stalk size of Machine 2 was 14 cm, this value was 9.6 cm in 3 flat blades. With this machine the surface covering rate was 26.25% the average height of stalk was 11.53 cm. This paper describes the structural features of the machine, the design of the main working parts, determination of the parameters of the position of the blade modules, and presents the performance tests.

title: The Experimentation of the TC 5050 New Holland Combine Harvester in Sunflower
abstract: The work presents the results of laboratory experiments and field studies in sunflower crop harvesting with the New Holland TC 5050 combine harvester. The combineaEUR(tm)s harvesting performance was monitored on the level and slope field by determining the work quality indexes and the energetic and operating indexes of the combine studied. When driving on sloping land on the valley hill direction, grain losses have exceeded the maximum allowable limit, reaching values over 6,5% When movement was along level curves, the grain loss had registered values close to maximum allowed limit (3% being therefore the recommended method. Fuel consumption has increased considerably when driving on sloping land compared with driving on the level field. In order to achieve a quality harvesting work, combine harvesters should be adjusted and operated in accordance with land condition and with the agrobiological characteristics of the crops.

title: Construction an innovative separator sunflower grain with new methods
abstract: The sunflower grain is very popular due to fresh and nutty consumption in some countries such as Iran, Turkey and many Arabic countries which is usually harvested without high capacity harvester at high moisture content in Iran. Also, the available methods have low efficiency for segregation the grains from sunflower head. Therefore, this study was conducted to design, construct and evaluate an innovative separator apparatus using the properties of nutty sunflower and applying kinematic equations. This apparatus includes the threshing and cleaning unit that the variables of its components are adjustable. So, with these capabilities, these variables can be optimized for any variety of sunflowers and this information can be used to develop suitable combine harvester. The experiments of evaluation and optimization designed using Response Surface Methodology (RSM) modeling method. The effects of rotational drum speeds (380, 280, 180 rpm) feed rates (2000, 3000, 4000 (kg (head) h 1) moisture content (60, 45, 30% w.b) for threshing unit, slope of sieves (0.12, 0.07, 0.02) oscillating frequency (7.6, 5.6, 3.6 Hz) and amplitude (25, 17.5, 10 mm) for cleaning unite were studied. Maximum and minimum threshing efficiency, separation efficiency and grain damage for threshing unit obtained 98.94 and 96.90 70 and 60.04% 1.12 and 0.49% respectively. These results for cleaning efficiency and grain loss of cleaning unite reported 94.14 and 87.95% 2.63 and 1.23% respectively. The result of ANOVA Tables showed that the models were statistically significant at the 95% confidence level. The perturbation plots demonstrated that the moisture content had the greatest effect on threshing efficiency and grain damage followed by drum speed and feed rate. With decreasing the moisture content, threshing and separation efficiency increased and grain damage reduced. The oscillating frequency had more effect than other factors on cleaning efficiency, which with reducing it, the amount of cleaned grains increased. The optimized points were determined at the drum speed 376.634, feed rate 2000.06, moisture content 30, frequency 5.153, amplitude 25 and slope 0.02.

title: Indicators of the combine equipped with GPS receiver in sunflower harvesting
abstract: In sunflower harvesting for decreasing the grain loss and increasing using efficiency of the combines GIS technologies, namely combines equipped with GPS devices and control sensors provides good results. This is explained that by the fact that with a length of 400 500 mm, the cut baskets did not partially fall on the divider guide, and with a length of 700 800 mm, seed losses increased due to uncut baskets, since with an increase in length the divider guide bent some stems forward and did not cut them. Analyzing the studies of working process of the adapted grain harvester combine Dominator 130 that equipped with GPS receiver and grain level indicator sensor in sunflower harvesting defined optimal parameters its header, as the following values: the length of the divider guide (l T 0.6 m, the gap between the divider guides (S T 0.1 m, the installation angle of the divider guide relative to the bottom of the header (b T 5 degrees. With these parameters, the combine that has adapted header for harvesting sunflower meets the agro technical requirements for harvesting sunflower.

title: Development of a Sunflower Combine Harvester