scholarly journals Improved pump for transporting liquid feed mixtures through pipes on farms

2021 ◽  
Vol 263 ◽  
pp. 04046
Author(s):  
Oktyabr Rakhimov ◽  
Sobir Eshev ◽  
Mahmud Rakhmatov ◽  
Istam Saidov ◽  
Furkat Boymurodov ◽  
...  

The article substantiates the effectiveness of the use of liquid feed when feeding pigs, shows the advantages of feeding with liquid feed rather than dry feed. It is stated that, when feeding with liquid feed, pigs of some production groups reduce the need for drinking water, while the energy consumption for surviving feed and saliva secretion is reduced to a minimum. The transition to liquid feed mixtures of low moisture content, which include juicy feed or green pastes, is considered rational, but the equipment used for transporting and distributing such feed mixtures requires the improvement of working organs. However, the use of pipeline transport for transporting and distributing feed mixtures on farms and small family farms requires the use of special feed-transporting pumps with high reliability. But, the industry does not produce special pumps for feeding feed mixtures of high concentration with a moisture content of 68…. 75%, and the use of pumps from other industries does not give effective results. Therefore, the development of a pump used for feeding feed mixtures with low moisture content is very urgent. To solve this problem, the authors have proposed a new energy-saving pump design used for feeding liquid feed mixtures through pipes on farms and small farms. Devices and the principle of operation of the improved pump are given. The novelty of the design is confirmed by the patent of the Republic of Uzbekistan UZ 5149B.

Author(s):  
Karibek Sherov

This article deals with analysis of the production state of pipeline valves in the Republic of Kazakhstan (RK). As a result of the study, it was found that to ensure high reliability and complete environmental safety of the communications system of pipeline transport, it is necessary to improve the quality of manufacturing pipeline valves and other elements of the pipeline transport system by using new promising developments in the field of mechanical processing, assembly, welding, etc. Актуальность исследования заключается в вопросах производства крупногабаритной арматуры для трубопроводов. Исследованы вопросы проектирования и классификации трубопроводов, трубопроводной арматуры,в частности клапанов. Установлено, что наиболее сложной и трудоемкой в изготовлении среди трубопроводной арматуры является конструкция задвижек. Исследована технология изготовления крупногабаритных задвижек в условиях Усть-Каменогорского арматурного завода и выявлены вопросы обеспечения качества и точности изготовления коробчатого узла. Результаты экспериментальных исследований процесса фрезерования конической поверхности показали возможность использования фрикционной конической фрезы для обработки отверстий с криволинейными поверхностями полукорпуса крупногабаритной шиберной задвижки.


2008 ◽  
Vol 14 (1) ◽  
pp. 157-161
Author(s):  
Xing Wang ◽  
Yuan-yuan Qu ◽  
Wei-wei Hu ◽  
Jie Chen ◽  
Xue-yi Zhao ◽  
...  

2019 ◽  
Vol 125 ◽  
pp. 10004
Author(s):  
Sekar Anggun Gading Pinilih ◽  
Wiana Laelaputri Chairunnisa

This study aims to discuss new and renewable energy policies as an effort to build national energy security. Research methods use legal research that searches from various perspectives. The implementation of analysis, using the method of regulatory and focus on energy, generally has many impacts. First, the policy on the use of new and renewable energy aims to prepare the carrying capacity of national energy security. Implementation this policy has not been fully implemented because there are still many obstacles faced. Second, the use of new energy and renewable energy as an effort to build national energy security in Indonesia is still not optimal. Even though Indonesia is blessed with abundant natural and energy resources in all its regions and the need for new and renewable energy as the future fate of energy security in the unitary state of the Republic of Indonesia for people's welfare as a step to reduce the increase in consumption of fossil-based energy.


2020 ◽  
Author(s):  
Anton Kusuma Jaya

The purpose of this research was: 1) to explain whether there was a Climate of leadership, Organizational Behavior Disciplines Work on performance of Member unit of the police of the Republic of Indonesia Sabhara Resort City of Padang and 2) measure the magnitude of the influence of Climate leadership, Organizational Behavior Disciplines Work on performance of Member unit of the police of the Republic of Indonesia Sabhara Resort City of Padang.This research was conducted in February-March 2016 in Sabhara units of the police force of the Republic Indonesia's resort city of Padang.The sample used in this study as many as 32 respondents using a sampling of saturated. As for the independent variable of climate leadership, Organizational Behavior Disciplines work, whereas the variable dependennya is the performance of members of the police. This research is explanatory research.The method of data collection is the kuestioner. Data analysis techniques using Descriptive Analysis and Inferensial Analysis.To know how the variables are independent of the dependent variable are partial, used test t. Whereas to know the influence of the variables are independent of the dependent variables simultaneously, use the test F. Assumptions used in the test of validity is if R-female > R-table item is declared valid. R-count shown in the table above, from individual items suggests that R-female > R-table so that the items are declared valid.Based on a test of the validity of the instrument of climate leadership, Organizational Behavior and discipline Work against Performance known to all items stated valid and reliability test results show that the instruments have a high reliability and meets the criteria of a good instrument requirements, i.e., valid and reliability.Free Leadership Behavior variables (X 1) effect significantly to performance (Y), Organizational Climate (X 2) a significant effect on performance, variable (Y) Discipline work (X 3) a significant effect on performance (Y). Hypothesis (H1) until the Union (H3) third.


2020 ◽  
Vol 67 (3) ◽  
pp. 667-681
Author(s):  
Aleksandra Tošović-Stevanović ◽  
Dragan Ćalović ◽  
Goran Lalić ◽  
Milena Žuža ◽  
Gorica Cvijanović

2020 ◽  
Vol 67 (2) ◽  
pp. 73-77
Author(s):  
Zarife Bajraktari-Gashi ◽  
Muharrem Zabeli ◽  
Behram Halilaj

AbstractDuring 1984–1997, the ferronickel plant in Drenas used iron-nickel ore from the mines of the Republic of Kosovo: Glavica and Çikatove (Dushkaje and Suke) mines. However, during the years 2007–2017, when the plant started operating from the cessation of production, which was from 1998 to 2007, some types of iron-nickel ores from different countries began to be used, starting from iron-nickel ores from Kosovo, iron-nickel ores from Albania, ores from Indonesia, ores from the Philippines, ores from Guatemala, ores from Turkey and ores from Macedonia. The ore composition, however, is mainly oxide-laterite ore. Iron-nickel ores in the plant are characterised by high moisture content, a very important factor influencing the process of scraping the charge in rotary kilns and presenting in general. Among the iron-nickel ore used in the ferronickel plant, the ores from Albania are characterised due to their low moisture content when compared with the other ores as well as the high content of iron oxides, which affect the temperature rise inside the furnaces, as the iron ores play an important role in the pre-casting process in rotary kilns.


1976 ◽  
Vol 98 (2) ◽  
pp. 213-220 ◽  
Author(s):  
V. E. Schrock ◽  
A. D. K. Laird

Wet geothermal formations or reservoirs are of great current interest as a new energy source. Such formations have the potential for large quantities of energy at temperatures of interest for power production and other uses. In these reservoirs the ground water usually contains dissolved solids in such high concentration as to pose a serious disposal problem. For this reason and also to maintain the water table, in most cases, the water will be reinjected into the reservoir after the useful energy has been extracted. Efficient utilization of the potential of a given reservoir requires optimum location of costly producing and reinjection wells. Selection of well location must be based upon an understanding of the heat and mass flows within the reservoir. In this paper, we present some general considerations for physical modeling as well as the results obtained from a laboratory model having two wells to simulate a geothermal energy extraction loop.


2021 ◽  
Vol 274 ◽  
pp. 03003
Author(s):  
Оktyabr Rakhimov ◽  
Laylo Аshurova ◽  
Fotima Artikbekova

The article highlights the advantages and benefits of pipeline transport of liquid feed mixtures on small pig farms, the device and the principle of operation and technical characteristics of the improved rotor pump developed by the authors of the article. Methods of experimental research to determine the concentration of feed mixtures, the influence of the shape of the separator on the performance characteristics, the required power and the flow of an improved pump are presented. The results of the experiments showed that one of the bottlenecks limiting the operation of rotary pumps on feed mixtures of increased concentration is the low suction capacity of the pump, that is, the design of the suction pipe of the pump, where an increase in resistance with an increase in the concentration of feed mixtures causes a breakdown of the operating mode and cavitation. To resolve this issue, we used a screw feeder installed in front of the pump suction nozzles. It was found that if the screw feeder provides excess pressure within (about, 0.25 ... 0.3) 105 Pa per suction cavity, the pump operates stably and reliably.


REAKTOR ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 1-10
Author(s):  
Putri Ramadhany ◽  
Abigail Fern Pramana ◽  
Arabella Febiola ◽  
Tony Handoko

Tomato is a seasonal horticultural product that has beneficial effects on human health. It contains a high concentration of lycopene and vitamin C. However, tomato production, which continues to increase in Indonesia, is not balanced with its consumption. Due to its high moisture content, harvested tomato relatively has a short shelf-life. Resultantly, the unconsumed tomato will end up being wasted. One way to prolong tomato’s shelf-life is by converting it into powder form. In this research, the tomato was shifted into tomato powder using a foam mat drying method. The weight ratio of GMS to tomato juice was varied: (1) 4%-w/w, (2) 5%-w/w, and (3) 6%-w/w. Tomato powder was then stored in two types of materials (sealed brown glass bottle and laminated aluminium foil (LAF) resealable zipper) and three conditions (refrigerator ( ± 4 ℃), room temperature (± 25.2 ℃) and sun-exposed  (± 30 ℃)). According to the results, foam mat drying could maintain the nutrients of the tomato powder. Increasing GMS larger than 5%-w/w had no big impact on reserving lycopene and vitamin C. At 5%-w/w GMS, tomato powder consisted of 1.09%/w/w moisture, 42.58 mg/100 g lycopene, and 123.28 mg/100 g vitamin C. It was found that moisture and vitamin C on tomato powder content was influenced by storage conditions, while lycopene content was influenced by storage material. Moisture content and vitamin C were best maintained at the sun-exposed condition and room temperature, respectively. While lycopene was best stored in the laminated aluminium foil (LAF) resealable zipper.


Author(s):  
I. P. Sheyko ◽  
R. I. Sheyko ◽  
N. V. Pristupa ◽  
E. A. Yanovich ◽  
A. C. Burnos ◽  
...  

Production of highly efficient parental forms LçY and YçL will be arranged for the first time in the Republic of Belarus, corresponding to world standards in terms of development and performance. Arrangement of own production of high-value animals will allow to ensure import substitution via industrial production and reduce import costs. The paper presents the results of comprehensive assessment of the initial genotypes of pigs with high adaptive capacity for accelerated creation of new final parental forms to be used in industrial pig breeding. Biochemical tests of blood of Landrace and Yorkshire breed of animals during their adaptation were analyzed. The reproductive ability of Landrace and Yorkshire boars has been evaluated. The patterns of inheritance of quantitative traits of Yorkshire and Landrace pigs performance were determined according to set of molecular genetic markers (RYR1, ESR and PRLR), which allow predicting their performance with high reliability degree. Animals were identified with preferred genotypes RYR1NN (100 %), ESRBB (12.7-30.0 %), PRLRАА (4.9- 47.5 %) associated with higher performance. Superiority of pigs was determined with genotypes ESRBB, PRLRАА in terms of multiple pregnancy and milk performance over animals of other genotypes by 7.8-9.3 and 9.0-13.2 %; 5.9-20.4 and 10.0- 21.0 %, respectively. Creation of breeding herds of highly productive animals, ensuring production of hybrid parental pig with the required breeding and genetic parameters of productivity based on new biotechnological techniques and methods, ensuring selection of valuable breeding material and, therefore, the maximum effect of breeding, will promote increase of competitiveness of domestic pig breeding. Acknowledgments. The research was carried out as part of the State Research and Development Program “High Technologies and Engineering” for 2016-2020, subprogram 1 “Innovative Biotechnologies - 2020”.


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