...D. Jaya Krishna In the present study, the numerical investigation has been performed for a phase change material (PCM)-based longitudinal fin heat sink. The fins are taken as an integral part of the heat sink and are made up of aluminum. The PCM considered in the study is RT44HC. Heat...

... substantial manufacturing costs and efforts. Extended surfaces Heat and mass transfer Heat exchangers Heat transfer enhancement Natural convection Thermal systems Fins Mixed convection 09 10 2017 28 02 2018 Contributed by the Heat Transfer Division of ASME for publication...

... Heat transfer enhancement Jets Wakes Impingement Cooling Fins Advanced internal cooling concepts need to be developed in order to meet the increasing need for higher turbine inlet temperatures. Jet impingement has been extensively used in turbine airfoil internals, as an effective method...

... Jokar. 18 01 2017 03 11 2017 Boiling Conduction Energy efficiency Evaporation Extended surfaces Heat and mass transfer Heat exchangers Micro heat transfer Porous media Fins Nanoscale heat transfer Two phase heat transfer, especially pool boiling, is a very...

... Extended surfaces Forced convection Heat transfer enhancement Fins Braking system, as one of the most important components of a road vehicle, must be able to safely dissipate the kinetic energy of the vehicle. During this process, the generated heat due to friction in between a rotor and brake...

...Marios M. Fyrillas; Sayat Ospanov; Ulmeken Kaibaldiyeva In this paper, we consider the heat transfer problems associated with a periodic array of triangular, longitudinal, axisymmetric, and pin fins. The problems are modeled as a wall where the flat side is isothermal and the other side, which has...

... 2016 Electronic cooling Extended surfaces Heat exchangers Fins Owing to their high thermal conductivities, metallic materials have traditionally been the materials of choice for heat spreading and heat exchange in a variety of engineering applications. With progress in materials...

...Abhijit Deka; Dilip Datta Although an annular stepped fin can produce better cooling effect in comparison to an annular disk fin, it is yet to be studied in detail. In the present work, one-dimensional heat transfer in a two-stepped rectangular cross-sectional annular fin with constant base...

...Georgios Karamanis; Marc Hodes We develop a method requiring minimal computations to optimize the fin thickness and spacing in a fully shrouded longitudinal-fin heat sink (LFHS) to minimize its thermal resistance under conditions of hydrodynamically and thermally developed laminar flow. Prescribed...

...Biplab Das; Asis Giri To transport the energy efficiently without much dissipation, first and second law analyses of mixed convection heat transport from an array of nonisothermal rectangular vertical plate-finned heat sink are made using purely computational fluid dynamics (CFD) analysis...

... developed by Nsofor et al. [ 13 ] for oscillatory flow over the fin-type heat exchanger of the thermoacoustic refrigeration system, which is given by (12) Nu = 0 . 61   Re D 0 . 385 Pr 0 . 11 The last correlation developed by Paek et al. [ 18 ] for oscillatory flow...

... transfer Fins Nanoscale heat transfer Various devices engineered by man release waste heat on their operation and this has become a matter of great concern, especially in recently invented devices such as electronic components, which are being miniaturized continuously. But the heat produced...

... diameter, m fp = fin pitch, m G = mass velocity, kg/m 2 s h = heat transfer coefficient, W/m 2 K h f = fouling resistance, W/m 2 K H = heat exchanger height or tube length, m i = constant in Eqs. (17) and (20) j = Colburn j -factor defined...

... on the buoyancy terms. The buoyancy term is approximated as (8) ( ρ - ρ 0 ) g ≈ - ρ 0 β ( T - T 0 ) g The characteristics of the heat exchanger finned tubes are based on the characteristics used by van Rooyen [ 16 ] and Louw [ 7 ]. These characteristics are used...