Compressed Air
Mostrando 1-12 de 67 artigos, teses e dissertações.
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1. Energy planning and management during battery manufacturing
Abstract The aim of this study is to improve energy performance at a battery factory in Colombia by introducing the energy management approach defined in ISO 50001. In the study, the main energy consumptions were identified in the battery formation, the compressed air system and the large electric motors. An energy review was performed in the factory using m
Gest. Prod.. Publicado em: 10/10/2019
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2. Aplicação da técnica de CAMQL na retificação cilíndrica externa do aço AISI 4340 utilizando rebolo de CBN
RESUMO O processo de retificação possui como características o bom acabamento superficial e alta precisão dimensional e geométrica. Assim, peças usinadas por este processo possuem um alto valor agregado por se tratar de um processo de acabamento que é comumente realizado nas últimas etapas da fabricação. Um fator limitador do processo de retificaç
Matéria (Rio J.). Publicado em: 16/09/2019
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3. Ballistic Tests of Alumina-UHMWPE Composites Submitted to Gamma Radiation
The energy absorption in ballistic tests of alumina-ultra high molecular weight polyethylene (UHMWPE) composites with 60, 80 and 90 wt% alumina submitted to gamma radiation doses of 25, 50 and 75 kGy was investigated. The ballistic tests were carried out at subsonic speed using a compressed air system. The results showed that the composite with 80% alumina i
Mat. Res.. Publicado em: 22/08/2019
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4. Life cycle analysis of HCNG light-duty vehicle demonstration project
ABSTRACT The demonstration is an effective initiative to bridge the gap between a premature technology and its large-scale commercialization. A systematic method of LCA was used to perform the well-to-wheel analysis of a CNG light-duty truck operated with 0%, 15%, and 30% blends of hydrogen with compressed natural gas fuel under the system boundary of “per
Matéria (Rio J.). Publicado em: 10/06/2019
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5. Blood gas analysis in pigs submitted to different concentrations of nitrous oxide or oxygen, under different ventilatory modalities
RESUMO Compararam-se os efeitos de diferentes concentrações do óxido nitroso ou oxigênio sobre variáveis hemogasométricas, em suínos mantidos em ventilação espontânea ou controlada à pressão, associada ou não à pressão expiratória final positiva (PEEP). Foram utilizados 48 porcos, distribuídos em seis grupos. Administraram-se diferentes conc
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2019-02
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6. Study of the electricity consumption reduction of a compressed air system: the case of a steelmaking company
Abstract This work aims to reduce the energy consumption and thus increase the availability of blast furnace compressors of a steelmaking company, located in Alto Paraopeba region in Minas Gerais state, Brazil, through the elimination of waste points in the compressed air distribution. In order to develop this work, an ultrasound test in the compressed air l
REM, Int. Eng. J.. Publicado em: 2017-12
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7. Study on patient dosimetry and image quality in digital mammography
Abstract Introduction Digital mammography present many advantages in comparison to conventional mammography, such as high dynamic range and the post-processing of acquired images. One problem is that protocols may not be optimized, resulting in higher absorbed doses to patients. The objective of this work is to evaluate image quality and to estimate mean gl
Res. Biomed. Eng.. Publicado em: 2017-06
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8. Strength of 3Y-TZP and feldspathic porcelain subjected to different cooling methods
AIM: To investigate the effect of the cooling rate on flexural strength of monolayer and bilayer porcelain/zirconia (Y-TZP) bars. METHODS: Forty-five specimens were made for each design group: (PM) monolithic specimens of veneer porcelain Vita VM9 (Vita, Germany); (ZM) monolithic specimens of zirconia (ZiHP; ProtMat, Brazil); (PB) bilayer specimens zir
Braz. J. Oral Sci.. Publicado em: 2014-04
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9. Life Cicle Inventory for Lead Azide Manufacture
ABSTRACT: Like any other manufactured chemical compounds, explosives are produced using chemical reactants and other utilities (steam, heat, compressed air, feed water and electricity) and generate a set of environmental impacts (waste water, solid and water residue and waste heat, for example). On top of that, one can count the intrinsic hazard characterist
J. Aerosp. Technol. Manag.. Publicado em: 2014-03
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10. Utilization of teflon and aluminum oxide for wheel cleaning in Minimum Quantity Lubrication (MQL) grinding
Researches concerning cooling-lubrication optimization in grinding have been conducted to contribute to a more sustainable process. An alternative to flood coolant is minimum quantity lubrication (MQL), which spray oil droplets in a compressed air jet. However, problems related to wheel cleaning were reported, due to wheel loading by a mixture of chips and o
Mat. Res.. Publicado em: 05/11/2013
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11. Gestão energética na pequena e média agroindústria - um enfoque térmico
The dissertation presents a way of developing an Energy Management Plan for small and medium agribusiness. The work brings the document "Energy Management Plan for Small and Medium Agribusiness," with an appropriate language to the end user, usually entrepreneurs with little specific knowledge on the subject. The plan presents tools and means to implement in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2012
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12. Avaliação de métodos de preparo de amostra para a determinação de halogênios em alumina de alta pureza / Evaluation of sample preparation methods for halogens determination in high-purity alumina
The presence of trace elements in high purity alumina (e.g. halogens) can compromise the final product characteristics. In this work, different sample preparation methods based on alkaline fusion, halogen extraction in water with and without microwave heating, alkaline extraction, microwave-induced combustion and pyrohydrolysis for further halogens determina
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2011