P. Álvarez

Publications27
h-index14
Citations469
Highly Influential Citations30
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DRYING OF CARROTS IN A FLUIDIZED BED. I. EFFECTS OF DRYING CONDITIONS AND MODELLING
ABSTRACT Drying curves were determined in a mechanically agitated fluidized bed dryer, at temperatures between 70°C and 160°C, air velocities between 1.1 m/s and 2.2 m/s and stirring rates between 30… Expand
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A SEMI-THEORETICAL MODEL FOR THE DRYING OF THUMPSON SEEDLESS GRAPES
ABSTRACT In this paper, the usefulness of a mathematical model based on equations describing the diffusional phenomena which are variable with time, is developed and discussed in relation to serve as… Expand
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Dynamic simulation and control of direct rotary dryers
TLDR
Adaptive and conventional control of a direct rotary dryer has been assessed through simulations. Expand
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Pneumatic drying of meals: Application of the variable diffusivity model
ABSTRACT The superficial and bound moisture removal from soya meal was studied in a pneumatic dryer. The effect of external condition over the effective diffusivity in drying kinetics prediction has… Expand
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Modeling the Mean Residence Time in a Rotary Dryer for Various Types of Solids
The residence time in a pilot-scale rotary dryer was determined experimentally for four types of solids (fish meal, sand, soy meal, and sawdust) while varying the solids flow rate, the slope of the… Expand
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Experimental determination of volumetric heat transfer coefficient in a rotary dryer
Abstract The objetive of this work, was to demonstrate the validity of empirical relationships for computing the volumetric heat transfer coefficient Ua in a pilot direct contact rotary dryer. It was… Expand
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Experimental Study of the Heat and Mass Transfer During Drying in a Fluidized Bed Dryer
ABSTRACT Drying curves obtained in a pilot-scale fluidized bed dryer using biological source solids (sawdust, soya and fish meal) were used to estimate the parameters involved in heat and mass… Expand
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Hybrid-neural modeling for particulate solid drying processes
Abstract In this work, a general framework for modelling and simulation of particulate solid drying processes is presented, based on fundamental conservation laws associated with a neural network,… Expand
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FLASH DRYING OF FISH MEALS WITH SUPERHEATED STEAM: ISOTHERMAL PROCESS
ABSTRACT The work considers the application of the flash drying to the moisture removal of fishmeal using superheated steam as transport medium. Heat, momentum and mass transfer equations were… Expand
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Relationship between severity of adult community-acquired pneumonia and impairment of the antioxidant defense system.
Oxidant/antioxidant imbalance has been reported in some infectious diseases, including community-acquired pneumonia (CAP). The aim was to assess the antioxidant status in adults with CAP and its… Expand
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