Search Results - "Sphaier, L.A."

Unstable mixed convection in a heated horizontal porous channel by Sphaier, L.A., Barletta, A.

“…This paper presents a linear stability analysis of horizontal throughflow in a saturated porous channel bounded by parallel impermeable walls with heating…”
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Desiccant-assisted humidity control for air refrigeration cycles by Nóbrega, C.E.L., Sphaier, L.A.

“…A desiccant-assisted Brayton cooling cycle as an option for controlling humidity in air refrigeration cycles has been proposed. The modified cycle integrates a…”
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Improved lumped-capacitance model for heat and mass transfer in adsorbed gas discharge operations by Sphaier, L.A., Jurumenha, D.S.

“…An improved lumped-capacitance formulation for heat and mass transfer in adsorbed gas discharge operations has been developed. The formulation is obtained by…”
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Analysis of heat and mass transfer in porous sorbents used in rotary regenerators by Sphaier, L.A., Worek, W.M.

“…A new dimensionless formulation, that locally accounts for heat conduction and mass diffusion in solid sorbent materials occurring in either enthalpy…”
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Determination of Young's modulus in polyester-Al2O3 and epoxy-Al2O3 nanocomposites using the Digital Image Correlation method by MOREIRA, D. C, SPHAIER, L. A, REIS, J. M. L, NUNES, L. C. S

“…Young's modulus of nano-composite systems composed of unsaturated polyester and epoxy resins with alumina nanoparticles of different sizes has been…”
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Dimensionless lumped formulation for performance assessment of adsorbed natural gas storage by da Silva, M.J.M., Sphaier, L.A.

“…Adsorbed natural gas (ANG) has been emerging as an attractive alternative to compressed natural gas or liquefied natural gas, on various circumstances…”
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Desiccant-assisted multistage air compression systems: Performance improvement and humidity control by Machado, J.V.P., Pinheiro, I.F., Sphaier, L.A., Nóbrega, C.E.L., Quintans, P.C., Quintanilha, F.O.

“…Novel desiccant-assisted systems have been evaluated for reducing the work required in multistage air compression processes. While traditional inter-cooling is…”
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Analytical solutions for extended Graetz problem in infinite domains via integral transforms by Sphaier, L.A., Braga, N.R., Chalhub, D.J.N.M.

“…A methodology for obtaining analytical solutions for the extended Graetz problem including the effects of axial conduction, viscous dissipation heating, and…”
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Heat and mass transfer with chemical kinetics in alcoholic fermentation of multiple sugars: Lumped formulation and dimensional analysis by Pinheiro, I.F., Serrano, H.L., Sphaier, L.A., Peixoto, F.C., Silva, V.N.H.

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Transient formulation for evaluating convective coefficients in regenerative exchangers with hygroscopic channels by Santos, S.M.D., Sphaier, L.A.

“…A transient two-dimensional model for coupled heat and mass transfer in channels with hygroscopic walls has been developed. The formulation employs a…”
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Low-cost fluorescence-based method for beer bitterness measurement by Calado, L.S., Lacerda, A.L.F., Fiaux, S.B., Sphaier, L.A., Silva, V.N.H., Peixoto, F.C.

“…A simple low-cost methodology for assessing beer bitterness using the IBU (International Bitterness Units) scale has been developed. The experimental setup is…”
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Integral transform analysis of microchannel fluid flow: Irregular geometry estimation using velocimetry data by Pinheiro, I.F., Puccetti, G., Morini, G.L., Sphaier, L.A.

“…•A hybrid solution for flow in an irregular geometry is presented.•A filter based on a distorted regular domain solution is employed.•Both forward and inverse…”
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Integral transform solution for heat transfer in parallel-plates micro-channels: Combined electroosmotic and pressure driven flows with isothermal walls by Sphaier, L.A.

“…This paper presents an analytical solution for heat transfer problems that occur in micro-channel flows driven by the combined effect of electroosmosis and a…”
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Dynamic response of free span pipelines via linear and nonlinear stability analyses by Reis, E.V.M. dos, Sphaier, L.A., Nunes, L.C.S., Alves, L.S. de B.

“…A thorough stability analysis of submerged pipeline dynamics has been performed. The problem of current-induced vibrations in a free spanning pipeline was…”
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Integral transform analysis of heat and mass diffusion in chemically reacting systems with Michaelis–Menten kinetics by Pinheiro, I.F., Serrano, H.L., Sphaier, L.A., Peixoto, F.C., Silva, V.N.H.

“…A Generalized Integral Transform Technique (GITT) solution scheme for transient non-linear heat and mass diffusion in chemically reacting systems with…”
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Parametric analysis of heat and mass transfer regenerators using a generalized effectiveness-NTU method by Sphaier, L.A., Worek, W.M.

“…A parametric analysis of heat and mass transfer in regenerative exchangers that employ sorbent materials has been performed. The adopted methodology is based…”
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Parametric analysis of components effectiveness on desiccant cooling system performance by Sphaier, L.A., Nóbrega, C.E.L.

“…A number of studies have been conducted for investigating parameters that influence the performance of desiccant cooling systems. Many of these rely on…”
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Determination of Young’s modulus in polyester-Al 2O 3 and epoxy-Al 2O 3 nanocomposites using the Digital Image Correlation method by Moreira, D.C., Sphaier, L.A., Reis, J.M.L., Nunes, L.C.S.

“…Young’s modulus of nano-composite systems composed of unsaturated polyester and epoxy resins with alumina nanoparticles of different sizes has been…”
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The UNIT algorithm for solving one-dimensional convection-diffusion problems via integral transforms by Sphaier, L.A., Cotta, R.M., Naveira-Cotta, C.P., Quaresma, J.N.N.

“…A unified approach for solving convection-diffusion problems using the Generalized Integral Transform Technique (GITT) was advanced and coined as the UNIT…”
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Modeling and simulation of a Desiccant–Brayton Cascade refrigeration cycle by Nóbrega, C.E.L., Sphaier, L.A.

“…► Original cycle combining the Desiccant and refrigeration Brayton cycle in a cascade configuration. ► Refrigeration cycle mathematical modeling. ► Waste heat…”
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