Pump Compressor
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Production of fibrous polymer scaffolds for tissue engineering using an automated solution blow spinning system
Abstract Introduction Solution blow spinning (SBS) and airbrushing are two techniques that can be used as alternatives to electrospinning in the production of fibrous scaffolds for tissue engineering (TE). SBS seems particularly interesting due to its versatility, however, it has not been much explored and no automated SBS systems were found in the literat
Res. Biomed. Eng.. Publicado em: 22/10/2018
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2. Controle preditivo baseado em modelo neuro-fuzzy de sistemas não-lineares aplicado em sistema de refrigeração = : Model predictive control based on neuro-fuzzy nonlinear systems applied to a refrigeration plant / Model predictive control based on neuro-fuzzy nonlinear systems applied to a refrigeration plant
Refrigeration systems can be found in many different branches of industry and are characterized as great energy consumers with considerable non-linear behavior. Several studies have been developed to promote the reduction of energy costs and to minimize the effects of nonlinearities in these systems. The use of automation and process control, particularly th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2012
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3. A generalized gas-liquid two-phase flow analysis for efficient operation of airlift pump
Airlift pumps are finding increasing use where pump reliability and low maintenance are required, where corrosive, abrasive, or radioactive fluids must be handled and when a compressor is readily available. The objective of the present study is to evaluate the performance of a pump under predetermined operating conditions and to optimize the related paramete
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-09
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4. Estudo experimental de uma bomba de solução rica em refrigerador por absorção operando pela diferença de pressão do refrigerador / Experimental study of one pump of rich solution in refrigerator for absorption operation for the difference of pressure of the refrigerator
Was projected and constructed one diaphragm pump for one system of refrigeration for water-ammonia absorption that operates using expanded vapor it enters the same levels of pump action pressure. Through an experimental group of benches, the conditions of functioning of the pump had been verified that simulates a system of absorption in the suction phases an
Publicado em: 2005
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5. QUALITATIVE ASPECTS OF GROUNDWATER AT UFSM CAMPUS, SANTA MARIA RS / ASPECTOS QUALITATIVOS DA ÁGUA SUBTERRÂNEA NO CAMPUS DA UFSM, SANTA MARIA - RS
Nowadays there is an expressive increase of the use of groundwaters because of the lower cost for treatment, distribution and, mainly the scarcity of hydrous resources. Over the years 40 tubular wells were drilled to supply provide about 17.000 people, who circulate at UFSM Campus, according to data given from University Cityhall, only 20 wells are working,
Publicado em: 2005
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6. ANÁLISE DA APLICAÇÃO DE UM SISTEMA DE BOMBEAMENTO MULTIFÁSICO SUBMARINO NA PRODUÇÃO DE PETRÓLEO / EVALUATION OF A SUBSEA MULTIPHASE PUMPING SYSTEM APPLIED ON PETROLEUM PRODUCTION
A subsea oil production system allows simultaneous production of several wells with different flow rates when the system has a subsea manifold. In order to balance the different flow rates, the higher production wells have their flow rates reduced via a choking system. As a result, the total flow is lower than the summmation of all individual well flow rates
Publicado em: 2003
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7. Comparação do desempenho de um sistema de refrigeração para resfriamento de liquido, controlado a diferentes modos de controle. / Comparison of the system performancefor liquid refrigeration, controlled cooling the different ways of control.
A prototype of refrigeration system in a chiller plant was assembled and instrumented for development of a conventional and fuzzy controllers. Fuzzy controls are increasingly being applied to industrial process especially in process with complex mathematical modeling. The capacity of action in a system controlled by a fuzzy logic is based only on a expert kn
Publicado em: 2003
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8. Desenvolvimento e avaliação de uma bomba de calor usada no condicionamento de ar para secagem de alimentos
A heat pump made up of a reciprocating compressor driven by a 1.1 kW electric motor, an air condenser, a dry expansion evaporator, filled with R22 refrigerant fluid and fully instrumented was circuited to a tray dryer. Ambient air was sucked through the evaporator, flowed outside the condenser and was blown into the dryer. The thermodynamic performance of th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/1993
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9. Recuperação de energia na destilação do sistema etanol-agua
Energy recovery is now days one the most important tasks that chemical engineeries face, specially when distillation is involved. Between the energy recovery techniques to be applied to distillation columns, vapour recompression has been pointed out as one of the most promissing. The application of this technique has been discussed in the literature and reco
Publicado em: 1983
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10. 75 deaths in asthmatics prescribed home nebulisers.
The circumstances surrounding the deaths of 75 asthmatic patients who had been prescribed a domiciliary nebuliser driven by an air compressor pump for administration of high dose beta sympathomimetic drugs were investigated as part of the New Zealand national asthma mortality study. Death was judged unavoidable in 19 patients who seemed to have precipitous a