scholarly journals ESTIMATIVA DA DEMANDA ENERGÉTICA DE UMA SEMEADORA-ADUBADORA DE PRECISÃO EM SEMEADURA DIRETA DA SOJA

2021 ◽  
Vol 35 (4) ◽  
pp. 484-492
Author(s):  
Cristiano Márcio Alves de Souza ◽  
Eduardo Leonel Bottega ◽  
Leidy Zulys Leyva Rafull ◽  
Sálvio Napoleão Soares Arcoverde
Keyword(s):  
Soil Moisture ◽  
Energy Demand ◽  
Production Costs ◽  
Power Demand ◽  
Cutting Depth ◽  
No Till ◽  
Furrow Opener ◽  
Energetic Demand ◽  
Fertilizer System ◽  
Santa Maria

ESTIMATIVA DA DEMANDA ENERGÉTICA DE UMA SEMEADORA-ADUBADORA DE PRECISÃO EM SEMEADURA DIRETA DA SOJA   CRISTIANO MÁRCIO ALVES DE SOUZA1, EDUARDO LEONEL BOTTEGA2, LEIDY ZULYS LEYVA RAFULL1, SÁLVIO NAPOLEÃO SOARES ARCOVERDE1   1 Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Rodovia Dourados/Itahum, km 12, 79.804-970, Dourados, MS, Brasil, [email protected], [email protected], [email protected] 2Universidade Federal de Santa Maria, Campus de Cachoeira do Sul, Rodovia Taufik Germano, 3013, 96503-205, Cachoeira do Sul, RS, Brasil, [email protected]   RESUMO: A otimização dos sistemas mecanizados é essencial visando a melhoria da demanda energética dos conjuntos nas operações agrícolas e, consequentemente, redução dos custos de produção. O objetivo do trabalho foi avaliar a demanda energética de um conjunto trator-semeadora-adubadora, em função de diferentes mecanismos sulcadores e teores de água no solo sob sistema de semeadura direta da soja. O experimento foi montado em esquema de parcelas subsubdivididas, em que as parcelas constituíram os teores de água no solo (0,258; 0,277 e 0,290 g g-1), as subparcelas o tipo de sulcador (haste e disco-duplo) e as subsubparcelas os níveis de cargas aplicadas (451, 685 e 893 N) na linha da semeadora-adubadora, no delineamento em blocos casualizados, com três repetições. O teor de água no solo influencia diferentemente a demanda energética do conjunto trator-semeadora-adubadora em função do tipo de sulcador. O uso da haste sulcadora aumenta a patinagem, a potência e força específicas de tração, sendo a força maior para a haste independentemente da profundidade de corte do solo. Houve aumento da força e potência específicas de tração com o aumento da profundidade de corte do solo para ambos os sulcadores, bem como do consumo específico de combustível quando utilizada a haste sulcadora.   Palavras-chaves: haste sulcadora, patinagem, umidade do solo, potência.   ESTIMATION OF PRECISION SEEDER-FERTILIZER ENERGETIC DEMAND IN SOYBEAN NO-TILL   ABSTRACT: The optimization of mechanized systems is essential to improve the energy demand of the sets in agricultural operations and, consequently, reduce production costs. The work's objective was to evaluate a tractor-seeder-fertilizer system's energy demand due to different furrow openers and soil moisture under soybean's no-till. The experimental delineation adopted was the complete random blocks in a split-split-plot scheme in which the plots consisted of three soil moisture (0.258, 0.277 and 0.290 g g-1), the subplots of two mechanisms for furrow opening (hoe opener and double disk), and the sub-subplots of three applied loads (451, 685 and 893 N) in the seeder row on the soil, with three replications. The soil moisture influences the energy demand of the tractor-seeder-fertilizer system differently due to the furrow opener type. The hoe opener's use increases the wheel slippage, power demand, being the power greater for hoe opener regardless of the cutting depth. There was an increase in power demand with the rise of the cutting depth for both furrow openers, while the greater specific fuel consumption was using the hoe opener.   Keywords: furrow opener, wheel slippage, soil moisture, power.

scholarly journals Oxisol resistence to penetration in no-till system after sowing

2011 ◽  
Vol 31 (6) ◽  
pp. 1104-1114 ◽  
Author(s):  
Vinicius de V Ros ◽  
Cristiano M. A. de Souza ◽  
Antonio C. T Vitorino ◽  
Leidy Z. L Rafull
Keyword(s):  
Soil Moisture ◽  
Agricultural Activity ◽  
Soil Resistance ◽  
Lower Resistance ◽  
No Till ◽  
Split Plot ◽  
Furrow Opener ◽  
Resistance To Penetration ◽  
Plot Design

If inappropriately conducted, management and sowing practices may compromise the environment and the profitability of the agricultural activity. The aim of this study was to analyze the furrow opener mechanisms action and the level of load applied to soil firming mechanism in no-till, on the Oxisol resistance to penetration during soybean sowing, under three soil moistures. The experiment was arranged in split-split plot design, in which the plots were composed by three soil moistures (23.8; 25.5 and 27.5% b.s.), two furrow opener mechanisms sub-plots (double disks and furrow plough) and the split-split plot of three levels of load applied to soil firming mechanism (12.2; 18.5 and 24.1 kPa), according to randomized blocks design, with three replications. The soil moisture provided different resistance behavior to penetration with the depth, on the seedbed, independently of the furrow opener and the level of load applied to soil firming mechanism. The furrow plough use provided less soil resistance to penetration when compared to the double disk furrow opener, on the seedbed, independently of the soil moisture and the level of load applied to soil firming mechanism. The pressure applied by soil firming mechanism of 18.5 kPa provided the lower resistance to penetration, when the furrow plough was used. The soil resistance to penetration was less on the sowing line than on between rows, with 20 cm deep.

scholarly journals Coverage mobilization by different no-tillage in-line handling mechanisms

2015 ◽  
Vol 35 (1) ◽  
pp. 89-97
Author(s):  
EVANDRO M. BRANDELERO ◽  
AUGUSTO G. DE ARAÚJO ◽  
RICARDO RALISCH
Keyword(s):  
Soil Moisture ◽  
Vegetation Cover ◽  
Clayey Soil ◽  
Block Design ◽  
Prototype Model ◽  
No Tillage ◽  
Operational Conditions ◽  
No Till ◽  
Randomized Block Design ◽  
Furrow Opener

Vegetation cover on soil acts positively in maintaining temperature and soil moisture, yet, it has been imposing specific operational conditions on seeders. The objective of this study was to evaluate performance of different mechanisms regarding straw mobilization, employed in a no-till seeder. The experimental area was conducted on clayey soil under no-tillage with a large quantity of sorghum residue. The experiment was established in a randomized block design, as the treatments consisted of a combination of two mechanisms at front of the furrow opener composed of cutting disc and row cleaners, and three mechanisms behind the seed furrower, covering discs prototype model M1, Spider and commercial model, with the combination of cutting disc and Spider model not being evaluated. We assessed the coverage permanence on soil index, vegetation mass on surface and inside the line. The treatment containing the row cleaner mechanism efficiently removed straw from the surface of sowing line as well as the return one acted on straw replacement. It was identified that use of the cutting disc at the front of seeder contributed to the increase of straw installation inside the line, three times more than in the row cleaner system when operating individually. Covering mechanism with row cleaners reduced straw inside the line and kept line covering similar to treatment of cutting disc operating alone.

Soil moisture modeling based on stochastic behavior of forces on a no-till chisel opener

2016 ◽  
Vol 121 ◽  
pp. 420-428 ◽  
Author(s):  
André L. Johann ◽  
Augusto G. de Araújo ◽  
Hevandro C. Delalibera ◽  
André R. Hirakawa
Keyword(s):  
Soil Moisture ◽  
Stochastic Behavior ◽  
No Till

Thermoeconomic Model for the Energy Optimization of Industrial Air Compressed Supply Network Under Transient Condition

2012 ◽  
Author(s):  
Lesme Corredor M. ◽  
Diego Guillen ◽  
José Prada ◽  
Alisson Contreras
Keyword(s):  
Energy Demand ◽  
Energy Optimization ◽  
Industrial Plant ◽  
Transient Condition ◽  
Power Demand ◽  
Flow Monitoring ◽  
Air Supply ◽  
Air Compressors ◽  
Air Compression ◽  
Selection Of

Air compression represents around 20% of industrial total electric power demand, especially in chemicals and process companies. Few technical studies related with energy optimization of air compressed networks are reported in the specialized literature, in contrast, in natural gas and steam networks have been widely analyzed. Pressure, temperature and flow monitoring of air compression is not enough for implementation of energy optimization models, for this reason authors have developed a transit conditions model which takes into account air supply equipments and air compressed process requirements. This paper presents a decision support system for the scheduling selection of a set of air compressors in an industrial plant based on energy demand minimization. Several constraints must be taken in consideration during the optimization process, this can be desegregate in two types, the first set of constrains was used for simulate the operation of scroll, screw and centrifuges compressors, the second based in graph an node theory and contain the mathematical transit conditions model of supply air network topology, for the complexity of the problem the use of a genetic algorithm to search an optimal combination was necessary.

scholarly journals VIABILIDADE FINANCEIRA DA IRRIGAÇÃO EM SORGO FORRAGEIRO EM SISTEMA DE ASPERSÃO PARA BOVINOCULTURA DE CORTE

Irriga ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 143-161
Author(s):  
Jardel Henrique Kirchner ◽  
Adroaldo Dias Robaina ◽  
Marcia Xavier Peiter ◽  
Rogério Ricalde Torres ◽  
Wellington Mezzomo ◽  
...  
Keyword(s):  
Weight Gain ◽  
Beef Cattle ◽  
Rio Grande ◽  
Production Costs ◽  
Daily Weight Gain ◽  
Rio Grande Do Sul ◽  
Forage Sorghum ◽  
Financial Feasibility ◽  
Santa Maria ◽  
Sorghum Bicolor L

VIABILIDADE FINANCEIRA DA IRRIGAÇÃO EM SORGO FORRAGEIRO EM SISTEMA DE ASPERSÃO PARA BOVINOCULTURA DE CORTE     JARDEL HENRIQUE KIRCHNER1; ADROALDO DIAS ROBAINA2; MARCIA XAVIER PEITER3; ROGÉRIO RICALDE TORRES4; WELLINGTON MEZZOMO5 E BRUNA DALCIN PIMENTA   1 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Nelsi Ribas Fritsch, nº 1111, bairro Esperança, Ibirubá, RS, Brasil, CEP: 98200-000, [email protected] 2 Eng. Agrônomo, Doutor, Professor Titular do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 3 Eng. Agrônoma, Doutora, Professora Associada do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 4 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Eng. João Viterbo de Oliveira, nº 3061, Zona Rural, Vacaria, RS, Brasil, CEP: 95219-899, [email protected] 5 Eng. Agrônomo, Mestre, Doutorando no Programa de Pós-Graduação em Engenharia Agrícola, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 6 Eng. Agrônoma, Mestra, Doutoranda no Programa de Pós-Graduação em Engenharia Agrícola, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected]     1 RESUMO   A bovinocultura de corte mantida em pasto de sorgo forrageiro caracteriza-se como um dos principais meios de produção bovina no Rio Grande do Sul. Contudo, há irregularidade das precipitações e os produtores utilizam a irrigação como alternativa para o problema. Porém, há uma necessidade de determinação dos custos de produção e da viabilidade financeira da atividade. O trabalho objetivou avaliar a viabilidade financeira da irrigação em sorgo forrageiro para a bovinocultura de corte para diferentes expectativas de ganho de peso médio diário dos animais. Conduziu-se dois experimentos em 2015/2016 e 2016/2017 em Santa Maria/RS, e avaliou-se as produtividades de seis lâminas de irrigação por aspersão convencional (0, 25, 50, 75, 100 e 125 % da ETo), em quatro repetições, delineamento blocos ao acaso. Com as produtividades, gerou-se funções de produção e determinou-se a carga animal possível de ser alimentada para cada tratamento. Simulou-se três cenários de ganho de peso diário por animal (0,5, 1 e 1,5 kg-1animal-1 dia-1), e os custos de produção para cada condição hídrica estabelecida, além do retorno financeiro para cada cenário testado. Verificou-se viabilidade financeira para a maioria das situações simuladas avaliadas e que os custos dependem do regime das precipitações.   Palavras chave: Sorghum bicolor L. (Moench), irrigação de pastagem, viabilidade financeira, custos de produção.     KIRCHNER, J. H.; ROBAINA, A. D.; PEITER, M. X.; TORRES, R. R.; MEZZOMO, W.; PIMENTA, B. D. FINANCIAL FEASIBILITY OF IRRIGATION IN FORAGE SORGHUM IN ASPERSION SYSTEM FOR MEAT CATTLE BREEDING   2 ABSTRACT   Beef cattle kept in pasture of forage sorghum is characterized as one of the main means of bovine production in Rio Grande do Sul. However, rains are irregulat and producers  use  irrigation as  alternative to the problem. However, there is a need to determine production costs and  financial viability of the activity. The objective of this work was to evaluate the financial feasibility of irrigation in forage sorghum for beef cattle for different expectations of average daily weight gain of the animals. Two experiments were conducted in 2015/2016 and 2016/2017 in Santa Maria / RS, and the yields of six conventional irrigation depths (0, 25, 50, 75, 100 and 125% of the ETo) were evaluated, in four replications, and randomized block design. With the productivities, production functions were generated and the possible animal load to be fed for each treatment was determined. Three scenarios were simulated of daily weight gain per animal (0.5, 1 and 1.5 kg-1animal-1day-1), and the production costs for each established water condition, in addition to the financial return for each scenario tested. Financial feasibility has been verified for most of the simulated situations evaluated and costs depend on the precipitation regime.   Keywords: Sorghum bicolor L. (Moench), forage irrigation, financial viability, production costs.

Feasibility of Non-irrigated Soybean (Glycine max) Production in the Semi-arid Central Great Plains

1991 ◽  
Vol 5 (2) ◽  
pp. 369-375 ◽  
Author(s):  
Gail A. Wicks ◽  
Robert N. Klein
Keyword(s):  
Winter Wheat ◽  
Great Plains ◽  
The United States ◽  
Grain Sorghum ◽  
Production Costs ◽  
Wheat Grain ◽  
No Till ◽  
Wheat Stubble ◽  
Semi Arid Region ◽  
Semi Arid

We conducted research to determine if soybeans can be grown successfully in a no-till environment, in the semi-arid areas of the central Great Plains near North Platte, NE. Soybeans planted no-till into winter wheat stubble that was sprayed with glyphosate yielded more than when planted into soil that was rototilled in a winter wheat-soybean-fallow rotation. However, grain yield averaged only 420 kg ha-1during 1975, 1976, and 1977. No-till soybean grown in a winter wheat-grain sorghum-soybean rotation during 1982 through 1985 yielded an average of 1370 kg ha-1. Low yields were associated with lack of precipitation during the fallow period after winter wheat harvest or grain sorghum harvest and during the soybean pod elongation and filling period. Several herbicides gave excellent weed control in soybeans when applied either after wheat harvest, early preplant, or at planting time. None of the herbicides persisted long enough to reduce grain yields of winter wheat planted into the soybean residue. With present production costs these nonirrigated rotations are not economical in the semi-arid region of the central Great Plains of the United States.

DRILL FURROW OPENER EFFECTS ON WHEAT AND SORGHUM ESTABLISHMENT IN NO-TILL FIELDS

2004 ◽  
Vol 20 (2) ◽  
pp. 179-185 ◽  
Author(s):  
B. Du ◽  
A. Bekele ◽  
J. E. Morrison Jr.
Keyword(s):  
No Till ◽  
Furrow Opener

scholarly journals Fog Computing Model to Orchestrate the Consumption and Production of Energy in Microgrids

Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2642 ◽  
Author(s):  
Eric Bernardes C. Barros ◽  
Dionísio Machado L. Filho ◽  
Bruno Guazzelli Batista ◽  
Bruno Tardiole Kuehne ◽  
Maycon Leone M. Peixoto
Keyword(s):  
Response Time ◽  
Energy Demand ◽  
Power Grid ◽  
Fog Computing ◽  
High Volume ◽  
Local Source ◽  
Power Demand ◽  
Small Power ◽  
Control Power ◽  
Electrical Grids

Energy advancement and innovation have generated several challenges for large modernized cities, such as the increase in energy demand, causing the appearance of the small power grid with a local source of supply, called the Microgrid. A Microgrid operates either connected to the national centralized power grid or singly, as a power island mode. Microgrids address these challenges using sensing technologies and Fog-Cloudcomputing infrastructures for building smart electrical grids. A smart Microgrid can be used to minimize the power demand problem, but this solution needs to be implemented correctly so as not to increase the amount of data being generated. Thus, this paper proposes the use of Fog computing to help control power demand and manage power production by eliminating the high volume of data being passed to the Cloud and decreasing the requests’ response time. The GridLab-d simulator was used to create a Microgrid, where it is possible to exchange information between consumers and generators. Thus, to understand the potential of the Fog in this scenario, a performance evaluation is performed to verify how factors such as residence number, optimization algorithms, appliance shifting, and energy sources may influence the response time and resource usage.

scholarly journals Innovative Technologies for District Heating and Cooling: InDeal Project

Proceedings ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Serafeim Moustakidis ◽  
Ioannis Meintanis ◽  
Nicos Karkanias ◽  
George Halikias ◽  
Elise Saoutieff ◽  
...  
Keyword(s):  
Energy Demand ◽  
Social Impact ◽  
New Technologies ◽  
District Heating ◽  
Interdisciplinary Approach ◽  
Production Costs ◽  
Plant Production ◽  
Insulation Material ◽  
Innovative Technologies ◽  
Heating And Cooling

The paper discusses the outcomes of the conference organized by the InDeal project. The conference took place on 12 December 2018 in Montpellier as part of the EnerGaia energy forum 2018. A holistic interdisciplinary approach for district heating and cooling (DHC) networks is presented that integrates heterogeneous innovative technologies from various scientific sectors. The solution is based on a multi-layer control and modelling framework that has been designed to minimize the total plant production costs and optimize heating/cooling distribution. Artificial intelligence tools are employed to model uncertainties associated with weather and energy demand forecasts, as well as quantify the energy storage capacity. Smart metering devices are utilized to collect information about all the crucial heat substations’ parameters, whereas a web-based platform offers a unique user environment for network operators. Three new technologies have been further developed to improve the efficiency of pipe design of DHC systems: (i) A new sustainable insulation material for reducing heat losses, (ii) a new quick-fit joint for an easy installation, and (iii) a new coating for reducing pressure head losses. The results of a study on the development and optimization of two energy harvesting systems are also provided. The assessment of the environmental, economic and social impact of the proposed holistic approach is performed through a life cycle analysis. The validation methodology of the integrated solution is also described, whereas conclusions and future work are finally given.

Decision support for evaluating energy demand in vinification processes using fuzzy sets theory

2006 ◽  
Vol 17 (4) ◽  
pp. 4-18 ◽  
Author(s):  
N Musee ◽  
L Lorenzen ◽  
C Aldrich
Keyword(s):  
Fuzzy Logic ◽  
Energy Consumption ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Current Trend ◽  
High Energy ◽  
Production Costs ◽  
Wine Industry ◽  
Process Industries ◽  
Industrial Growth

The current trend associated with high energy demand, depletion of energy reserves and low potential of renewable energy sources linked with strong industrial growth, is increasingly becoming unsustainable. As a result, production costs have increased considerably in the process industries, mainly owing to skewed energy demand and supply realities. A feasible strategy for meeting these challenges is to reduce energy consumption per unit throughput. However, to obtain a workable solution, decision makers may have to deal with energy management variables that are ambiguous, which makes solving the energy minimization problem with conventional numerical approaches very difficult. In this paper, we consider an alternative approach based on fuzzy logic to qualitatively evaluate the energy demand associated with an industrial cooling process. The model was formulated based on Mamdani fuzzy logic inferencing and implemented in MATLAB 6.5 via the Fuzzy Logic toolbox. The energy demands pertaining to specific variables were independently estimated, followed by an estimate of the overall energy consumption. The procedure is demonstrated via a case study of cooling at the maceration stage of a vinification process in the wine industry.

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