Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 2016

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: przenikania ciepła

Sortuj według:

Ogranicz wyniki do:

Influence of thermal radiation on magnetohydrodynamic (MHD) boundary layer flow of a viscous fluid over an exponentially stretching sheet

Idowu A. S., Usman S.

International Journal of Applied Mechanics and Engineering

2016

Vol. 21, no. 3

581--592

Radiation on a magnetohydrodynamic (MHD) boundary layer flow of a viscous fluid over an exponentially stretching sheet was considered together with its effects. The new technique of homotopy analysis method (nHAM) was used to obtain the convergent series expressions for velocity and temperature, where the governig system of partial differential equations was transformed into ordinary differential equations. The interpretation of these expressions is shown physically through graphs. We observed that the effects of the Prandtl and magnetic number act in opposite to each other on the temperature.

Methodology of heat transfer and flow resistance measurement for matrices of rotating regenerative heat exchangers

Butrymowicz D., Karwacki J., Kwidziński R., Śmierciew K., Gagan J., Przybyliński T., Skiepko T., Łapin M.

Chemical and Process Engineering

2016

Vol. 37, nr 3

341--358

The theoretical basis for the indirect measurement approach of mean heat transfer coefficient for the packed bed based on the modified single blow technique was presented and discussed in the paper. The methodology of this measurement approach dedicated to the matrix of the rotating regenerative gas heater was discussed in detail. The testing stand consisted of a dedicated experimental tunnel with auxiliary equipment and a measurement system are presented. Selected experimental results are presented and discussed for selected types of matrices of regenerative air preheaters for the wide range of Reynolds number of gas. The agreement between the theoretically predicted and measured temperature profiles was demonstrated. The exemplary dimensionless relationships between Colburn heat transfer factor, Darcy flow resistance factor and Reynolds number were presented for the investigated matrices of the regenerative gas heater.