scholarly journals Sunflower Seed Cake and Larvae MassRheological Properties Analysis During Pressing WithVarying Temperature, Pressure and Oil Content

2022 ◽  
Author(s):  
Ivan Shorstkii ◽  
Alexandr Gukasyan ◽  
Evgeny Koshevoi ◽  
Vyacheslav Kosachev
Keyword(s):  
Hydraulic System ◽  
Sunflower Seed ◽  
Oil Content ◽  
Fluid Model ◽  
Successful Implementation ◽  
Mathematical Apparatus ◽  
Bingham Model ◽  
Rotational Viscometer ◽  
Seed Cake ◽  
Alternative Protein

For the successful implementation of alternative protein sourcesforbiorefinery, optimization of the process parameters is crucial. Knowledge of the rheological propertiesis necessary for the design and development of appropriate equipment and process calculations.The objective of this research was to evaluate the effect of the following pre-treatments: temperature, pressure andeffect of initial oil content on the rheological properties of sunflower seedcake and larvae tissue. The rheological behavior of two protein sourceswas determined by using a rotational viscometer with a hydraulic system and thermostatic bath attached to the equipment. Using the mathematical apparatus and experimental data it was observed that the plastic viscosity of the sunflower seed cake corresponded to the viscosity of the vegetable oil, which confirmed the Bingham rheology assumption put forward in this work. For the larvae mass, a Hershey Buckley fluid model was proposed.A positive linear relationship was found for pressure and a negativelinear relationship was found for the oil content of the sunflower seed cake and larvae tissue on shear stress. Keywords: rheological property, sunflower seed cake, larvae, pulsed electricaldischarge, viscoplasticity flow, Bingham model, modelling

Development of technology and installation for fodder production using spent filter powders

2020 ◽  
Author(s):  
Е.О. СМЫЧАГИН ◽  
С.К. МУСТАФАЕВ
Keyword(s):  
Sunflower Seed ◽  
Raw Materials ◽  
Maximum Amount ◽  
Farm Animals ◽  
Sunflower Seeds ◽  
Experimental Operation ◽  
Seed Cake ◽  
Fodder Production ◽  
Sunflower Oils ◽  
Waste Separation

Разработаны технология и установка для переработки отработанных фильтровальных порошков (ОФП) в кормовые продукты (КП) на масложировых предприятиях после вымораживания подсолнечных масел с целью исключения процесса их окисления. Предложена модернизация ранее разработанной авторами технологии переработки отходов очистки семян подсолнечника (ООСП). Рекомендовано добавление во вторичное масличное сырье (ВМС) из ООСП обезжиренных центрифугированием ОФП. Установлено, что центрифугирование необходимо осуществлять в течение 35 мин при 900 об/мин центрифуги. Определена наибольшая эффективность прессования с экструдированием при добавлении 1–3% обезжиренного фильтровального порошка в ВМС. Установлено максимальное количество обезжиренного фильтровального порошка (10%). Совместная переработка ООСП и ОФП на созданной экспериментальной производственной установке позволила получить КП в соответствии с требованиями нормативных документов на подсолнечный жмых и КП «Подсолнечный» для сельскохозяйственных животных. It has been suggested modernizing the previous technology for recycling of sunflower seed waste, developed by the authors that included waste separation to obtain secondary oily raw materials. A technology and installation has been developed for recycling spent filter powders into fodder products immediately after freezing of sunflower oils at oil and fat plants to exclude the process of their oxidation. It is established that the centrifugation must be carried out for 35 min at 900 rpm of the centrifuge. The greatest efficiency of pressing with extrusion is determined when adding 1–3% of fat-free filter powder to secondary oilseeds. The maximum amount of fat-free filter powder (10%) is set. The co-processing of sunflower seeds waste and spent filter powders at the created experimental operation-performing installation made it possible to produce an experimental fodder product which meets the requirements of normative acts for sunflower seed cake and sunflower fodder product «Podsolnechnyy» used for feeding farm animals.

Magneto-rheological fluid slot-entry journal bearing considering thermal effects

2019 ◽  
Vol 30 (18-19) ◽  
pp. 2831-2852 ◽  
Author(s):  
Krishnkant Sahu ◽  
Satish C Sharma
Keyword(s):  
Thermal Effects ◽  
Journal Bearing ◽  
Fluid Model ◽  
Viscous Friction ◽  
Fluid Film ◽  
Applied Current ◽  
Bingham Model ◽  
Geometric Imperfection ◽  
Fluid Film Bearings ◽  
Magneto Rheological

In recent times, controlling the performance of fluid film bearings smartly has become an important area for the fluid film bearing designers. This study deals with the numerical simulation of a magneto-rheological fluid–lubricated two-lobe hybrid slot-entry journal bearing. To make the operating condition more exact and realistic, the influence of geometric imperfection of the journal arising from manufacturing inaccuracies and thermal effect has been considered. Dave magneto-rheological fluid model, a constitutive relation of the Bingham model, and finite element method have been used in this article to simulate the behavior of the magneto-rheological fluid in a slot-entry bearing. The results indicate that the heat generated because of viscous friction rises the temperature of the magneto-rheological fluid, which changes the bearing performance significantly. Considering barrel-shaped journal and magneto-rheological fluid (applied current, Ic = 4 A), the performance of two-lobe slot-entry bearing is superior in terms of the value of [Formula: see text] approximately by a magnitude of 2%, 41%, 181%, 168%, 75%, and 41%, respectively, as compared to that of the base bearing (smooth [Formula: see text], two-lobe bearing, operating with a Newtonian fluid, Ic = 0 A).

Water status and yield of sunflowers (Helianthus annuus) subjected to water stress during four stages of development

1977 ◽  
Vol 89 (3) ◽  
pp. 663-666 ◽  
Author(s):  
N. Sionit
Keyword(s):  
Water Stress ◽  
Seed Yield ◽  
Sunflower Seed ◽  
Oil Content ◽  
Water Status ◽  
Dry Weight ◽  
Stages Of Development ◽  
Stages Of Growth ◽  
Head Formation ◽  
Total Dry Weight

SummaryThe effects on seed yield of two levels of water stress at four stages of development were investigated in two varieties of sunflower, Krasnodarets and Record. The plants were grown from seed in large pots in an air-conditioned glasshouse at 26/20 °C and 70% relative humidity, with natural summer illumination. They were subjected to water stress before head formation, during head formation, during flowering, and during seed development.The leaf water potential of plants subjected to a water stress of – 16 bars returned to normal after rewatering, but plants subjected to – 23 bars did not return to their prestress level and some leaves died. A water stress of – 16 bars caused no significant reduction in dry weight of the vegetative structures, but stress at all stages of growth reduced seed yield. A water stress of – 23 bars reduced both total dry weight and seed yield at all stages of growth, seed yield being reduced more by a stress of – 23 bars than of – 16 bars. Oil content was slightly reduced by water stress.Water stress during anthesis reduced sunflower seed yield more than during later stages of development.

scholarly journals Investment planning of innovative activity

2021 ◽  
Vol 7 (3D) ◽  
pp. 302-307
Author(s):  
Vladimir Mikhailovich Zotov
Keyword(s):  
Project Management ◽  
Innovation Management ◽  
Resource Planning ◽  
Modeling Processes ◽  
Innovative Activity ◽  
Successful Implementation ◽  
Technological Operation ◽  
Mathematical Apparatus ◽  
Investment Planning ◽  
Methodological Basis

The purpose of the study in this case is to develop methods for modeling processes aimed at ensuring investment planning of innovative activities of the enterprise. The methodological basis of the research is the adaptation of technological networks to the methods of financial and resource planning. In parallel, the corresponding mathematical apparatus was developed. It became clear that the activities of the company's department dealing with innovation management have to base on the principles of project management. The research based on the analysis of the process aimed at creating or acquiring an innovation at an enterprise in the context of the resources necessary for the successful implementation of such a process. The result determined and described a mathematical pattern describing the dependence of the probability that a technological operation will be performed successfully on the amount of investment (resources) allocated for this operation. Adjacency matrices became the most appropriate form of representation of models of innovative processes.

scholarly journals Effect of Feeding Moringa Seed Cake as an Alternative Protein Source in Lactating Ewe’s Rations

2020 ◽  
Vol 15 (2) ◽  
pp. 80-87
Author(s):  
Ahmed A. Aboamer ◽  
Hossam M. Ebeid ◽  
Mahmoud M. Shaaban ◽  
Ramadan M.A. Gawad ◽  
Mohamed M. Mostafa ◽  
...  
Keyword(s):  
Protein Source ◽  
Seed Cake ◽  
Alternative Protein ◽  
Effect Of Feeding

CANADIAN SUNFLOWER SEED.: I. BUSHEL WEIGHT AS A FACTOR IN GRADING

1945 ◽  
Vol 23f (2) ◽  
pp. 91-103
Author(s):  
H. R. Sallans ◽  
M. Berenbom ◽  
R. K. Larmour
Keyword(s):  
Refractive Index ◽  
Full Advantage ◽  
Iodine Value ◽  
Sunflower Seed ◽  
Oil Content ◽  
Correlation Coefficients ◽  
Acid Value ◽  
Oil Yield ◽  
Level Of Significance ◽  
Total Oil

To determine the importance of bushel weight as a factor in grading, 51 samples of Sunrise and 34 samples of Mennonite seed were examined for associations between bushel weight and other properties of commercial sunflower seed.Highly significant correlations of bushel weight with total oil content of the seed, r =.867**; percentage kernel, r =.740**; percentage oil in the kernel, r =.795**; and percentage nitrogen in the kernels, r = −.467** were obtained. Oil yield, estimated on the basis of a cake containing 5% oil and 10% moisture, was also associated with bushel weight, r =.871**. The correlation coefficients of bushel weight with iodine value, acid value, and refractive index were not significant.The present grade specifications fail to take full advantage of bushel weight as a factor in grading sunflower seed since the levels were set too low to be effective. It is suggested that the levels might well be 30 lb. for No. 1, 26 lb. for No. 2, and 22 lb. for No. 3 instead of 24 lb. for No. 1 and 21 lb. for No. 2 and No. 3. The effects of this change are discussed in relation to grading of the two varieties and the establishment of appropriate price spreads between grades.** Indicates that the 1% level of significance was attained.

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