Study of hydrodynamics and heat transference from liquid whole egg through plate with three formats chevron / Estudo da hidrodinamica e transferencia de calor do ovo integral liquido atraves de placas com tres formatos chevron

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

At this work are showed the heat transference and hydrodynamics of liquid egg flow between ducts with corrugated walls, simulating plate heat exchangers. The contour conditions admitted was the constant temperature in the walls during the fluid heating. The whole egg rheology was experimentally determinated in a extend temperature range (289 ? 335K). The egg rheology behavior was time dependent, which was explored at the present work. However, to study the loss of load and heat transference this time dependence behavior was not considerated, because, according to Skelland, the correct sizing of equipments and tubings used to tixotropic fluid transport and processing must be done using time independent rheologic parameters. The Ostwald-De Waelle model was adjusted at the experimental rheologycal curves disrespecting the time dependence. It was realized experimental determinations of loss of load to determination of Fanning factor in function of Reynolds generalized number, and the results was used to determination of x and u geometrics parameters to laminar flow and P1 and P2 to turbulent flow. These geometrics parameters were used to correlated the experimental heat transference coefficient with the fluid physic properties resulting in equations on the classic format, Nusselt=Nu(Reg,Prg)

ASSUNTO(S)

plate heat exchangers fanning factor fator de atrito trocador de calor de placas liquid egg heat transference coefficient hidrodinamica ovo liquido integral hydrodynamics calor - coeficiente de transferencia

ACESSO AO ARTIGO

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