Convection at interior surfaces significantly affects the overall heat transfer in office buildings with large glazing areas. While a large number of these office buildings utilize ceiling slot diffusers at the glazed building perimeter, convection correlations specific to these diffusers have not yet been investigated. This paper describes convection correlations developed for ceiling slot dif...

The convective heat transfer enhancement in a turbulent boundary layer (TBL) employing pulsed, slot jet crossflow is investigated experimentally. A parametric study on actuation frequencies and duty cycles performed. actuator flush-mounted that injects fluid into well-behaved zero-pressure-gradient TBL over flat plate. heated-thin-foil sensor measures the time-averaged coefficient downstream of...

OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Guangyu Cao Name of the dissertation Modelling the attached plane jet in a room Manuscript submitted 25.02.2009 Manuscript revised 31.08.2009 Date of the defence 13.11.2009 Monograph Article dissertation (summary + original articles) Faculty Faculty of Engineering and Architecture Dep...

A CFD model to simulate the cooling technique trough slot jet impingement has been developed. Such a tested on an existing vertical galvanizing industrial line, which initially envisaged round configuration, subject of previous work. Two different configurations have simulated and compared pre-existing one, in order provide design information for possible new cooler after exploring solutions. T...

A conjugate heat transfer investigation was conducted to better understand the effects of an impinging radial slot jet cooling device on both the heat transfer rates and temperature fields in the fluid, and especially in the cylindrical solid cooled by this device. Such temperature nonuniformities in the solid are of practical interest as they may result in phenomena such as nonuniform material...

The difference of deashing performance between the areas positive-to-blowing holes and that non-positive-to-blowing is an important problem causes a non-uniform to flat box filter cartridge, which limits improvement raising ash cleaning efficiency this kind filter. In order solve above problems, influence blowing pressure, distance hole area on was studied. Industrial coating test also carried ...

An experimental and “numerical study (first part of this study) was carried out to investigate the solidification process in a copper continuous strip casting process. The model has been tuned by results (i.e. cooling water flow measurements, temperature measurements metallographic analysis). Further, have used possibility improved productivity. In report (second pattern molten during as manufa...