How To Find Friction Factor From Baffle Cut

how to find friction factor from baffle cut

Numerical Investigation of Thermal Performance Factor for

Note that the Darcy friction factor is directly related to the Fanning friction factor (which is 1/4 of the Darcy factor). In pure laminar flow, the Darcy factor can be taken as 64/Re (Reynolds number), but when the Reynolds number is above ~2300, turbulent flow means that an approach such as the Colebrook equation must be used.



how to find friction factor from baffle cut

NUMERICAL INVESTIGATION OF THE EFFECT OF BAFFLE

The height of this part is referred to as the baffle-cut and is measured as a percentage of the shell diameter, e.g., 25 per cent baffle-cut. The size of the baffle-cut (or baffle window) needs to be considered along with the baffle pitch. It is normal to size the baffle-cut and baffle pitch to approximately equalize the velocities through the window and in crossflow, respectively.

how to find friction factor from baffle cut

An Experimental Research on Heat Transfer Enhancement of a

The factor Z is the ratio of the true drop in temperature of the hot fluid to the rise in temperature of the cold fluid. The factor H is the heating effectiveness, or the ratio of the



how to find friction factor from baffle cut

An Experimental Research on Heat Transfer Enhancement of a

The factor Z is the ratio of the true drop in temperature of the hot fluid to the rise in temperature of the cold fluid. The factor H is the heating effectiveness, or the ratio of the

How to find friction factor from baffle cut
International Journal of Engineering and Advanced
how to find friction factor from baffle cut

Hydraulic Energy Losses Modeling Hydro Quebec Case Study

The window friction factor, f w, can be estimated from Equations (12) – (1 5) by substituting the window hydraulic diameter, D h,w , or the unbaffled hydraulic diameter, D h,ub , for the inside

how to find friction factor from baffle cut

Pipe friction loss John Claydon

To determine the relationship between head loss due to fluid friction and velocity for flow of water through smooth bore pipes and to confirm the head loss friction factor f. Method To obtain a series of readings of head loss at different flow rates ,through one or more of the smooth bore test pipes.

how to find friction factor from baffle cut

gulleyassociates.com

Results of the friction factor versus Reynolds number are illustrated in Fig. 6(d–f) for different baffle orientation angles (45°, 90° and 180°), while the number of baffles is kept constant. As shown in these figures, the difference in friction factor is very high for the case 180° due to the zigzag flow mode assured by this angle which creates more friction than the angle 90°. However

how to find friction factor from baffle cut

Numerical Investigation of Thermal Performance Factor for

When to Consider By-pass Strips in S & T Bundle Use a by-pass strip if tubes are removed under a nozzle. Removing tubes leaves an open area where the shell fluid can flow either over or …

how to find friction factor from baffle cut

Pressure Drop Calculation for Shell and Tube and Double

tube heat exchanger. exchanger. [3] [5]

how to find friction factor from baffle cut

CFD Study of Tube in Tube Heat Exchanger with Helical

Abstract—Experimental investigation of friction factor and heat transfer characteristics of thermosyphone solar water heater with flat plate solar collector fitted with full length baffle of 5cm pitch have been presented.

how to find friction factor from baffle cut

(PDF) Methods for Calculating Shear Stress at the Wall for

Calculated values for the friction factor f and the Colburn j-factor, however, have higher estimated uncertainties at the lower Reynolds numbers. The calculated friction factor f has an uncertainty of ± 17.7 % at Reynolds number 600 (± 1.3 % at Reynolds number 7000).

how to find friction factor from baffle cut

UNIT III HEAT-EXCHANGE EQUIPMENT Course material Adapted

Pc = Pi F b F L Where Pc = the pressure drop in a cross-flow zone between the baffle tips, corrected for by-passing and leakage, Pi = the pressure drop calculated for an equivalent ideal tube bank, F b = by-pass correction factor, F L = leakage correction factor.

how to find friction factor from baffle cut

Numerical Investigation of Heat Transfer and Friction

Numerical investigation of the heat transfer and friction factor characteristics of a circular fitted with V-cut twisted tape (VCT) insert with twist ratio (y = 2.93) and different cut depths (w = 0.5, 1, and 1.5 cm) were studied for laminar flow using CFD package (FLUENT-6.3.26).

How to find friction factor from baffle cut - INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN

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