Search

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Business & Projects / Revista de Gestão e Projetos is the property of Revista de Gestao e Projetos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Room occupancy is an important variable influencing electrical energy consumption in hotel buildings. Given the randomness of this variable, energy demands fluctuate, making it challenging to develop accurate models for describing energy use patterns. This research aimed to develop energy benchmarking models for hotels. For this, five hotel buildings in Londrina, Paraná, Brazil, were used as a reference. Data were collected through questionnaires, interviews with hotel managers, site visits, and analysis of project plans. The analyzed indicators included energy use intensity per built-up area (EUI), room night (EUIRN), average room area (EUIRA), and number of rooms (EUIR). Benchmark equations were obtained by multiple linear regression. The response variables were annual energy use, EUI, EUIRA, and EUIR. Benchmarks were classified on a scale from A to E according to operational energy performance, with A being the most efficient and E the least efficient. Of the five buildings, three were categorized into the same class by the three studied models. The classes of the other two buildings varied according to the model, demonstrating the importance of choosing adequate energy performance indicators for each analysis.

Copyright of Brazilian Business Law Journal / Administração de Empresas em Revista is the property of Administracao de Empresas em Revista and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Water Resources / Recursos Hídricos is the property of Associacao Portuguesa dos Recursos Hidricos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The building industry, responsible for a large proportion of energy consumption, is looking for solutions to reduce energy consumption. This study proposes biomimetic facades to ensure thermal comfort. Firstly, it examined biomimetic façade systems in the literature. Then, it analyzed the thermoregulation methods of nature, the level of biomimicry, and the strategies used by living things. As a result of the analyses, biological information regarding the three selected phenomena was expanded upon, determining how to transfer the biomimicry method to a building envelope. Energy simulations were conducted on the glass façade of the Süleyman Pasha Bath to evaluate the envelope’s energy efficiency. It was found that nature-inspired methods significantly contributed to the building's energy consumption when examining the simulation results of the façade designed.

O presente artigo tem como objetivo identificar por meio de pesquisa bibliográfica e documental as oportunidades e desafios quanto a contratação de projetos de desempenho energético através da Nova Lei de licitações ( Lei nº 14.133, de 1º de abril de 2021); Como metodologia de trabalho foi empregada a abordagem qualitativa, resultando em uma pesquisa de caráter exploratório e descritivo no qual, através da interpretação dos cenários no Brasil e com algumas observações de estudos de viabilização de eficiência energética no exterior, permitindo uma melhor análise das potencialidades legais a serem aplicadas. Como apresentado na introdução, o contrato de desemprenho energético seria uma solução para a atual conjuntura da Administração pública no Brasil. No entanto, esse tipo de contração esbarra na dificuldade legislativa, uma vez que esse tipo de contrato demanda em dois desafios a serem equacionados e superados. (i) a elaboração dos projetos básico e executivo e de executar obras e serviços de engenharia, assim como (ii) que a remuneração do particular tenha de ser vinculada a metas e indicadores de desempenho, a chamada remuneração variável. Finalmente, com este estudo, foi possível identificar que a contratação integrada definida pela lei nº 14.133, de 1º de abril de 2021, é considerado um importante instrumento para se estudar a possibilidade de contratos de desempenho energético. Isso porque, esse tipo de contrato aplica-se a objetos complexos e em relação aos quais não seja possível, ou, até mesmo, conveniente que a Administração Pública defina, de forma minuciosa, as regras técnicas para nortear a execução do objeto contratual.

The objective of this work is to demonstrate how the glace surface considerably affects building energy efficiency. Two cases of housing are presented, which consist of two private neighborhood houses located in the metropolitan area of San Miguel de Tucumán. Both were built considering recommended criteria on thermal energy efficiency and using Cassaforma system. This system is very efficient from a thermal energy point of view since it reaches the highest IRAM standards for thermal insulation. However, these cases present a significant window surface, with low thermal performance glazing and no solar protection in most orientations. Their performance is analyzed through EPDA (Passive Architectural Design Strategies) and energy efficiency labeling at their original state. Using the same tools, these houses’ behavior is analyzed considering two possible variants: a 50% window surface reduction and the use of a glass system with a better thermal performance that is available in the local market. It is concluded that carpentry has a high impact on energy behavior in both cases and its reduction allows significant energy savings.

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Brazilian Journal of Production Engineering / Revista Brasileira de Engenharia de Produção is the property of Brazilian Journal of Production Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Abstract In this study, an integer linear programming model is proposed to support the Production Planning, Scheduling and Control sector of a printing company. The model considers two objective functions to deal with the problem, the first is to minimize the costs with electric energy consumption and the second is to minimize the machine operating time. Both objectives are related to the assignment to different sets of printing and finishing machines for the manufacture of the ordered items. Operating constraints at the factory are considered, such as the setup time limits, how the machine is operated, the types of printed item, the production capacity and the demand. In addition, a heuristic was developed to support the production schedule, allowing adjustments in the different production shifts but respecting the assignments obtained using the mathematical model. Computational tests were performed with a set of data provided by a printing company located in the state of São Paulo.

In recent years, nanotechnology has emerged in the development of nanofluids. Research aimed at applying the nanorefrigerants and nanolubricants in vapor compression refrigeration systems is arousing much interest in the scientific community. This is thanks to the effect of the nanoparticles (NPs) in the thermodynamic properties of the base fluid, providing an improvement in the thermal exchanges of the system. In this context, the present work aims to carry out a systematic literature review, addressing the energetic influence of the applications of nanofluids in vapor compression refrigeration systems, highlighting parameters that can directly affect the performance of the system, such as compressor energy consumption, cooling capacity, and the coefficient of performance of the system (COP). In order to cover the most relevant works on this subject, the ordination method was used as a methodology for the selection and classification of the bibliographic database. It is possible to affirm that the use of NPs in refrigeration systems reduces the system's energy consumption, providing an increase in its energy performance. Furthermore, it was possible to verify that the use of nanofluids increases the cooling capacity in refrigeration systems by vapor compression, making them potential candidates for replacing conventional lubricants and refrigerants.

Copyright of Revista Pretexto is the property of Revista Pretexto and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

ABSTRACT The objective of this work was to determine the use and efficiency of energy and to quantify the greenhouse gas (GHG) emissions, per hectare, for the cultivation of pepper, Capsicum anuum L., hybrid MIRELLA F1, using plastic mulch in the open-field. The assays were performed in a farm of Puerto La Boca (1° 20’ 51” S and 80° 43’ 51” W), the precinct of the Puerto Cayo parish of Jipijapa Municipality, Manabí province, Ecuador. The data was collected through field research, between March and September 2021, under observation and timing techniques. There was evidence of energy consumption and production (in the form of pepper berries) of 18,442.29 and 27,702.74 MJ ha-1, respectively, and a total GHG emission of 3,058.90 kg CO2-eq ha-1. The energy efficiency was determined at 1.50, the energy productivity 1.88 kg MJ-1, the specific energy 0.53 MJ kg-1, and the net energy 8,858.46 MJ ha-1. The quotas of direct and indirect energies were calculated at 9,513.15 and 8,929.15 MJ ha-1, respectively, and the proportion of renewable and non-renewable energies at 12,994.03 and 5,448.27 MJ ha-1, respectively. The GHG index per kg of MIRELLA F1 pepper yield was 0.088.

The Brazil, to accomplish your appointments about climate changes (Paris Agreement/2015 and COP26/2021), established annual goals of descarbonization to the fuels department. This study analyze the efficiency of the oilseeds production classified as fixed oils or triglycerides, demanded by the biodiesel industry. The efficiencies' analyze of the technique was a Data Envelopment Analysis. The output was the production volume, the inputs were the fixed variables and costs, collected from July to September/2021 on official digital platforms. Were selected the soy, the corn and the cotton that have been part of the biodiesel production base since 2011 (from 49 producing counties). Of 23 soy productors, 13 have maximum efficiency and 10 needs adjustments to become efficiencies. Among the efficiencies the produced soy kg/ha medium cost is R$ 1,09, among the inefficiencies is R$ 1,25 (14,67% increased). Among the 19 corn producers, 6 has the maximum efficiency and 13 needs adjustments to become efficiencies. Among the efficiencies the corn kg/ha medium cost is R$ 0,54, among the inefficiencies is R$ 0,66 (22,25% increased). Of the 7 cotton producers, 6 has the maximum efficiency and 1 is inefficient, between the efficiencies the cotton kg/ha medium cost is R$ 6,54, and in the inefficient is R$ 7,90 (20% over). With the adjustments mostly in SSFP input the seeds/seedlings, fertilizers and pesticides 24 or 49% of 49 producers counties can reach the maximum efficiency. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Arquitetura IMED is the property of Revista de Arquitetura IMED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Arquitetura IMED is the property of Revista de Arquitetura IMED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Arquitetura IMED is the property of Revista de Arquitetura IMED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Producao Online is the property of Associacao Brasileira de Engenharia de Producao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Trabalho & Educação is the property of Work & Education of the Graduate Program, Faculty of Education, Federal University of Minas Gerais and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the current situation that we are going through the sustained health, social, economic and environmental emergency due to anthropogenic causes, it is necessary to generate innovative initiatives to mitigate negative impacts. The contribution from the design of the educational habitat for sustainability should focus on reducing the environmental impact net Zero Energy Building (nZIB), both in existing and new buildings. In this sense, the objective of this research is to evaluate the reduction of energy and carbon equivalent of a university educational building, by incorporating a thermal insulator solved with textile industry scrap. The thermal and environmental behavior of the current situation and the improvement proposal are analyzed in a comparative way. The results obtained are very encouraging. In the improved case in relation to the existing one, a reduction in energy in air conditioning is achieved, in the order of 45% in heating, 23% in cooling and 34,4% in greenhouse gas emissions. In conclusion, energy rehabilitation alternatives that reflect triple impact benefits involving the entire university educational community and society in general are valued.

Abstract Kiln geometries were developed to reach homogeneous temperatures above 900 °C, during the firing process, aiming to improve the production process of the ceramists from Vale do Jequitinhonha (MG/Brazil). Techniques of reactive flow numerical solution using the software Ansys CFX have been used to foresee the behavior of the firings. Two types of catenary geometries, simple and robust, were studied, capable of being easily reproduced. The firewood used as an energy source in the current kilns and the developed ones, in this research project, favored the control of the kiln’s atmosphere during the firing, beyond being a source found with easiness for the ceramists. The results of the numerical simulations demonstrated the energy efficiency of the kilns and the level of temperature reached. Knowing well thermal and gas dynamic behavior, some parameters of the burning could be improved, aiming for a better quality of used ceramics.

ABSTRACT: Tropical dairy cattle farming is one the most relevant economic activities for food production; although, currently faces increasing scrutiny from society due to its potential harm to natural resources and the environment. Moreover, some factors are paramount for the evaluation of the sustainability and productive potential of any given tropical dairy farm: soil quality, profitability, and energy efficiency. This study carried out a sustainability analysis in four types of tropical dairy cattle ranches, through three key indicators (economic profitability, energy efficiency and soil quality) and with a comprehensive approach in the Costa region of Oaxaca, Mexico. Therefore, four farms of different sizes (i.e., small, medium, large, and very large) were selected in Costa de Oaxaca, Mexico. The data collection was carried out for daily milk production, the dynamics of farm inputs (introduction or removal) from the production system, alongside with collection of soil samples. The agroecosystems evaluated were economically profitable, and those with greater intensification of their pasture areas display higher profit margins and energy efficiency. In terms of soil quality, there is a regular potential for its rational utilization.

Copyright of Educacao e Pesquisa is the property of Faculdade de Educacao da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Labor & Engenho is the property of Universidade Estadual de Campinas - Portal de Periodicos Eletronicos Cientificos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Tecnologia Aplicada is the property of Faculdade Campo Limpo Paulista and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of PARC Pesquisa em Arquitetura e Construção is the property of Universidade Estadual de Campinas - Portal de Periodicos Eletronicos Cientificos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Gestão & Tecnologia is the property of Revista Gestao & Tecnologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Tecnologia Aplicada is the property of Faculdade Campo Limpo Paulista and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

ABSTRACT Temperature variation in egg incubation can negatively affect the hatching time and weight gain of chicks, hence improving the incubator temperature accuracy can improve hatching rates. Controllers based on the fuzzy methodology have shown great potential for use in controlling incubator temperature variations. Therefore, the objective of this study is to develop and evaluate a fuzzy logic-based controller for egg incubation. Four identical incubators were configured: two with a fuzzy controller and two with a conventional controller. After evaluation and validation, a case study of the incubating eggs of free-range chickens was conducted on where 12 incubation cycles consisting of 20 eggs per incubator. The variables obtained include hatchability and electricity consumption. The results showed that the fuzzy logic-based controller maintained uniform internal temperature and a 10.68% saving on electricity usage when compared with the conventional controller. Thus, the fuzzy methodology has great potential for use in the incubation of free-range eggs.

This work deals with power and spectrum allocation approaches for massive MIMO (M-MIMO) systems. An analysis is made to verify the efficiency of the solutions provided by schemes used for the spectral and energy efficiency (SE-EE) trade-off problem in massive antenna-based wireless communication systems. We first introduce the Geometry Based Stochastic Model (GBSM) channel model (One-ring model), describing the behavior of a uniform linear array of antennas (ULA) arrangement, revealing how the channel parameters affect the channel capacity. We also show that under this model, the SE still increases without boundary when the massive number of base-station (BS) antennas $M$ increases, provided that pilot contamination is substantially mitigated or eliminated but when the number of users equipment (UEs) $K$ increases with a fixed number of antennas in the BS, there is a increasing limitation from the combiners in mitigating the inter-user interference, making decoding difficult. The downlink (DL) M-MIMO scenario is analyzed, by introducing the generalized power allocation problem and derived the max-min fairness scheme from it. We propose a procedure to solve the max-min problem and

ABSTRACT Irrigation is essential for the development of crops in regions with scarcity or irregular rainfall distribution, enabling high productivity. However, the use of water resources and electrical energy leads to a concern with irrigation efficiency. Pressure demand varies during the operations of irrigation systems and the appropriate pressure can be regulated by variable-frequency drives for the power supply of the motor-pump set. This study aimed to analyze the technical and economic feasibility of using a variable-frequency drive to adjust the pressure in subunits of micro-irrigation systems. Laboratory tests were carried out to determine the electrical power consumed in each irrigated subunit for different slopes and the application or not of the variable-frequency drive. Thus, an economic analysis was carried out considering the electricity tariff for group B and rural consumer class, as well as different annual irrigation times. The results showed the potential for energy saving with the use of the variable-frequency drive. Thus, the economic analysis showed that the variable-frequency drive was a better alternative than the dissipative method.

Copyright of PARC Pesquisa em Arquitetura e Construção is the property of Universidade Estadual de Campinas - Portal de Periodicos Eletronicos Cientificos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of PARC Pesquisa em Arquitetura e Construção is the property of Universidade Estadual de Campinas - Portal de Periodicos Eletronicos Cientificos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of PARC Pesquisa em Arquitetura e Construção is the property of Universidade Estadual de Campinas - Portal de Periodicos Eletronicos Cientificos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Competitividade e Sustentabilidade - ComSus is the property of Universidade Estadual do Oeste do Parana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents the results of energetic planning phase of the management standard NC ISO 50001 implemented in a telecommunications company. It was made taking into account the requirements set by existing regulations and key issues were determined such as the institution’s policy regarding energy, scopes and limits; legal requirements were compiled as well as the functions applicable to the senior management of the company together with the work team. The scope of the research is the energy planning phase and two methodologies present in specialized literature will be applied in this area. As a result of theenergy related review the areas or equipment of significant energy use (SEnUs) of each transmission center selected were identified; potential savings and number of Energy indicators for performance evaluation were also identified. Moreover, it was estimated that measures to improve energy represent potential savings up to 30,299 CUC/ year.

Purpose – In the recent scenario, there are various issues related to wireless sensor networks such as clustering, routing, packet loss, network strength. The core functionality of primarily wireless sensor networks is sensor nodes that are randomly scattered over a specific area. The sensor senses the data and sends it to the base station. Energy consumption is an important issue in wireless sensor networks. Clustering and cluster head selection is an important method used to extend the lifetime of wireless sensor networks. The main goal of this research article is to reduce energy consumption using a clustering process such as CH determination, cluster formation, and data dissemination. Methodology/approach/design – The simulation in this paper was finished utilizing MATLAB programming methodology and the proposed technique is contrasted with the LEACH and MOD-LEACH protocols. Findings – The simulation results of this research show that the energy consumption and dead node ratio are improved of wireless sensor networks as compared to the LEACH and MOD-LEACH algorithms. Originality/value – In the wireless sensor network there are various constraints energy is one of them. In order to solve this problem use CH selection algorithms to reduce energy consumption and consequently increase network lifetime.

The concept of the new industry seeks not only to improve production processes, but also to bring solutions to environmental problems, in addition to reducing resource consumption, while maintaining high yields. This constant search for process optimization has been the main agent in the development of new technologies aimed at improving the performance of industrial production lines. Thus, this article proposes to raise some important concepts of Industry 4.0, and present the development of a remote IoT-based system that, through MQTT and Modbus protocols, will be responsible for monitoring the entire electrical network of an industrial plant, sending its data to the cloud, where it can be monitored and analyzed by the industry management sector or even by an artificial intelligence system, in a simple and effective way, in real time and from anywhere, in order to assist in decision-making focused on energy efficiency.

This paper aims to report the experience from the project named "Energy Efficiency in the School" with seven-year-old students in a Second Grade classroom in a school located in Bagé, Rio Grande do Sul State, Brazil. In 2019, university extension activities were promoted by students, professors, and technical-administrative employees who work in the education field at the Undergraduate Degree in Energy Engineering at the Federal University of Pampa, Bagé Campus. The project goal is to sensitize Basic Education students to build a culture based on the efficient use of electric energy. In cooperation with the classroom teachers, the proposed activities embrace presentations, discussions, games, and in-class practical demonstrations on energy efficiency and conservation, as well as applied electricity. This paper details the procedures performed by the project team and the learning strategies used in the classroom, such as the tutorial, small-group, and game-based learning techniques. Results are discussed, emphasizing the lifestyle changes for the efficient use of electric energy verified during and after the university extension activities were carried out. This project motivates elementary school students to pursue Higher Education; enhances the collaboration between University and schools; and supports the Basic Education. Thereby, scientific and technological knowledge is disseminated, demonstrating the role played by the University in the local and regional development. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Tecnologia Aplicada is the property of Faculdade Campo Limpo Paulista and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

ABSTRACT The criterion used to select sprinklers in a conventional sprinkler irrigation system is based, in a first instance, on the water application intensity, which must be lower than or equal to the soil's basic infiltration velocity. However, other operating factors must be considered in the selection of sprinklers because these factors can influence the total annual cost of the irrigation system. Therefore, this paper aimed to evaluate the influence of the operation parameters of different commercial models of sprinklers on the cost of a conventional semifixed sprinkler irrigation system. The simulated variables were the operating pressure, the spacing between sprinklers, and the water application intensity of different sprinkler models available in the Brazilian market. We found that the operating pressure and flow variables most influenced the total annual cost of a conventional sprinkler irrigation system and must be considered in the project cost analysis so that the sprinklers that best suit the project can be selected.

Due to the tropical conditions in the country, which are predominant in most of its territory, with an average temperature of 24 ° C, air conditioners have become a necessity in most buildings, with the consequences of a significant increase in electricity consumption and worsening environmental problems. This paper describes the study on Energy Efficiency (EE) in air conditioners in classrooms located in an institution of higher education, in order to reduce costs and contribute to the environment through good use practices and an analysis technique of the existing equipment. Thus, this work is important since you can prove that EE projects in existing buildings can significantly improve energy savings, along with a short-term paypack . The study contributes by affirming that good projective practices in EE may have a promising result. The results of this study confirmed a payback of 7 years and 3 months, with the replacement of the existing air conditioners and inefficient BTU for most rooms by reverse-type models, as with the correct calculation for BTU them.