Heat transfer enhancement through inner grooved copper tubes with different tube parameters

... Energy & Environment Foundation. All rights reserved. Heat transfer enhancement through inner grooved copper tubes with different tube parameters M. M. Rahman, Y. M. Ling, G. W. Soon, G. A. ... correlation for inner grooved tubes. Wang and Honda [20] evaluated the existing condensation heat transfer correlations for inner grooved tubes with their c...

Ngày tải lên: 05/09/2013, 16:10

... and heat transfer through a porous medium with periodic permeability. Chauhan and Sahal [13] analyzed the flow and heat transfer over a naturally permeable bed of very small permeability with ... -6.4648 4.4 Rate of heat transfer The rate of heat transfer at the wall i.e. the heat flux in terms of Nusselt number N u for different values of α and K p are entered in Ta...

Ngày tải lên: 05/09/2013, 14:58

... based on a new generalized heat transfer law including generalized convective heat transfer law and generalized radiative heat transfer law has been derived [11]. The heating load and coefficient ... The heat L Q absorbed from the low temperature reservoir by the working fluid per cycle by the combination of two different heat transfer mechanisms, which are Newtonian and r...

Ngày tải lên: 05/09/2013, 15:28

... Carnot heat engine with the losses of heat resistance, heat leakage and internal irreversibility, in which the heat transfer between the working fluid and the heat reservoirs obeys a complex heat transfer ... Carnot heat engine with the losses of heat- resistance, heat leakage and internal irreversibility, in which the heat transfer between the working fluid and t...

Ngày tải lên: 05/09/2013, 15:28

... This paper having more concern with enhancement of heat transfer coefficient using artificial roughened absorber plate on solar air heater. The increment in heat transfer also leads to increase ... investigated the enhancement of heat transfer in triangular ribbed channel with longitudal vortex generators. Aharwal et al. [29] reported heat transfer and fluid flow in re...

Ngày tải lên: 05/09/2013, 15:28

... compared with the enhancement of heat transfer to correlate the flow field investigation with the mechanism of heat transfer. 2. Experimental setup Two experimental set-ups, one for heat transfer ... an increase in the heat transfer. They reported that the inclined rib arrangement with a downstream gap position shows higher enhancement in heat transfer compared to...

Ngày tải lên: 05/09/2013, 16:10

Ngày tải lên: 22/10/2013, 10:15

... 104 (m2/sec) 0.0250 0.2216 7.437 0.2054 0.4421 0.0592 0.4483 0.1176 0.7190 0.04625 10.834 0.02493 1.554 1.554 0.02531 0.204 2.0932 0.02388 0.2235 0.7399 0.2036 1.130 Pr 0.768 0.708 0.730 0.93 0.84 0.818 0.668 0.758 0.724 0.74 0.72 0.759 0.706 0.706 0.786 0.713 0.748 0.815 0.709 0.704 1.060 1.019 Table 43.8 One-Dimensional Heat Conduction Heat- Transfer Rate and Overall Heat- Transf...

Ngày tải lên: 23/01/2014, 07:20

... energy and the heat transfer process that occurs is called radiation heat transfer or simply radiation. In this mode of heat transfer, the energy is transferred through electromagnetic ... Horizontal Tubes and Tube Banks -=-[f^?r where N is the number of horizontal tubes placed one above the other; N = 1 for a single tube. 23 Film Condensation...

Ngày tải lên: 23/01/2014, 07:20

... Engineering Heat transfer class 1 A 0.3-cm-thick, 12-cm-high, and 18-cm-long circuit board houses 80 closely spaced logic chips on one side, each dissipating 0.04 W. The board is impregnated with copper ... of 30 W/m·oC. All the heat generated in the chips is conducted across the circuit board and is dissipated from the back side of the board to a medium at 40oC, with a heat...

Ngày tải lên: 06/03/2014, 20:21