Tiruselvam Ramahlingam & Vijay R Raghavan 2011, „The tube side heat transfer coefficient for enhanced double tube by Wilson plot analysis‟, Journal of Applied sciences,v ol.11, no.10, pp.1725-1732.Tiruselvam Ramahlingam & Vijay R Raghavan 2011, `The tube side heat transfer ...
aThe shell-and-tube heat exchanger is modeled using the Bell-Delaware method for the shell-side heat transfer coefficient and pressure drop. On the tube-side, the heat transfer coefficient and pressure drop are determined from empirical correlations [4,21].Fig. 1 presents the schematic of a ...
At a constant Reynolds number, the relative J factor (ratio of heat transfer coefficient to friction factor, relative to smooth tube values), had values from 0.93 to 1.16, with four dimpled tube configurations having values larger than unity. Despite the extremely simple design, this outperforms...
The objective of this experimental study is to evaluate the heat transfer coefficient outside a tube with annular transverse fins, derived from strips of copper mechanically bound and coupled outside. Water is used as the heating medium, in turbulent conditions and flowing at different temperatures ...
Remember that the heat transfer coefficient is defined as the amount of heat that is transferred from/to a unit area per unit time when the temperature difference between the surface and the ambient is one degree. From: Comprehensive Energy Systems, 2018 ...
Advantages: high heat transfer coefficient, compact structure and detachable structure. Disadvantages: small processing capacity, low operating pressure, less than 1.5 Mpa, operating temperature can not be too high. 3. Fin Heat Exchanger (1) Finned-tube heat exchanger ...
Through experiments we demonstrated that the droplet jumping effect could be sustained on a biphilic tube due to the formation of droplets in Cassie state during condensation. Because of the high droplet jumping and self-removal rate, the convective heat transfer coefficient was improved by 29% ...
The effect of tube diameter on the air-side performance is significant. Larger tube diameter not only gives rise to lower heat transfer coefficient but ... A Nuntaphan,T Kiatsiriroat,CC Wang - 《Applied Thermal Engineering》 被引量: 43发表: 2005年 Experiments on the Dehumidification Performance...
Re: Heat Transfer Coefficient #5 Alberto Schroth Guest Posts: n/a In my problem, my geometry is a closed tube with an inlet boundary condition described by an UDF which varies the velocity as a function time (sin[wt]). All the walls are adiabatic except for the end of the tube which...
whereLis the tube length. However, the equation can be applied with small modifications to tubes with external fins, whereAonow is the totalheat transfer surfaceon the outside of the tube, including the fins. Corresponding toEq. (5), the overall heat transfer coefficient could have been based...