Thermoacoustic
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Morphoagronomic characterization of a germplasm collection of Furcraea spp. and Agave spp.
ABSTRACT This work was carried out in Antioquia, Colombia, in a collection of the Furcraea and Agave genera, important in the country for manufacturing strings, sacks, geotextiles, and handicrafts Currently, to enhance its use, applications have been developed in textiles, biodegradable materials and thermo-acoustic insulation, among others. The aim of this
Revista Ceres. Publicado em: 2022
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2. USE OF RESIDUES FROM THE CELLULOSE INDUSTRY AND SUGARCANE BAGASSE IN PARTICLEBOARDS
ABSTRACT The use of alternative materials such as lignocellulosic residues in the production of particleboards has increased considering that these residues are produced in large volumes and often do not have an appropriate destination. This research studied the use of residues from cellulose industries, sugarcane bagasse, and castor oil-based polyurethane r
Eng. Agríc.. Publicado em: 2021-02
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3. Stability Characteristics of a Model Trim Adjustment System for Open Loop Active Control of Thermoacoustic Instability
ABSTRACT Thermoacoustic instability in liquid rocket engines can have potentially catastrophic consequences. Active control based on feedback promises improved stability margin over a wider range of operating conditions than passive control. In the present work, the thermoacoustic characteristics of a trim adjustment active control system based on variable v
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
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4. Recovery of Steelmaking Slag and Granite Waste in the Production of Rock Wool
Steelmaking slag and residues from granite cuttings are industrial wastes with considerable production, however limited applications. This work studied an inertization and recovery process of such wastes as raw materials into production of rock wool (i.e. a thermo-acoustic insulator with growing market). Several batches were produced aiming the chemical prop
Mat. Res.. Publicado em: 2015-02
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5. Análise do desempenho de refrigeradores termoacústicos / Performance Analysis of Thermo-Acoustic Refrigerator
O estudo de sistemas de refrigeração tem despertado interesse dos pesquisadores, tendo em vista o grande número de publicações sobre o tema ocorrido nos últimos anos. Grande ênfase tem sido dada aos refrigeradores termoacústicos em função das vantagens tecnológicas, econômicas e o baixo impacto ambiental que estes dispositivos apresentam quando c
Publicado em: 2011
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6. AvaliaÃÃo e caracterizaÃÃo espacial do ambiente termoacÃstico e de iluminÃncia na produÃÃo de frangos de corte sexados / valuation and spatial characterization of the thermoacoustic and illuminance environment in the production of sexed broiler chickens / valuation and spatial characterization of the thermoacoustic and illuminance environment in the production of sexed broiler chickens / AvaliaÃÃo e caracterizaÃÃo espacial do ambiente termoacÃstico e de iluminÃncia na produÃÃo de frangos de corte sexados
Broiler production in Brazil, and particularly in the state of Minas Gerais, possesses a great potential for expansion and improvement. In that way, solutions must be sought in order to further improve the productive process, thus enabling that the birds express all their genetic potential while minimizing the production costs and maximizing yield productivi
Publicado em: 2009
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7. Thermo-acoustic comfort of a low-cost housing / Conforto termo-acústico de uma habitação de baixo custo
The use of new technologies associated with new materials is a contribution to the building industry, decreasing the housing deficit and reducing the environmental impacts generated by traditional design techniques. These new materials are alternatives to the current shortage of materials for construction, which has raised the prices of construction in our c
Publicado em: 2009
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8. Thermoacoustic and photoacoustic sensing of temperature
We present a novel temperature-sensing technique using thermoacoustic and photoacoustic measurements. This noninvasive method has been demonstrated using a tissue phantom to have high temporal resolution and temperature sensitivity. Because both photoacoustic and thermoacoustic signal amplitudes depend on the temperature of the source object, the signal ampl
Society of Photo-Optical Instrumentation Engineers.
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9. Nonlinear natural engine: Model for thermodynamic processes in mesoscale systems
To develop intuition on the possible application of concepts from thermodynamic heat engines to mesoscale systems, we have constructed and studied a model thermoacoustic heat engine. The model consists of a chain of coupled nonlinear acoustic vibrators in which the primary thermodynamic medium is argon gas, the secondary thermodynamic medium is constituted b