Process for reducing the turbulent drag in conduits and around s

Details Process for reducing the turbulent drag in conduits and around s Process for reducing the turbulent drag in conduits and around s

1974-10-11

1976-02-17

Cohan, Alan

Fluid handling

Processes

Affecting flow by the addition of material or energy

F17D 116

Patent

active

039385361

ABSTRACT:
1. The reduction of turbulent drag of fluids flowing through conduits such as pipelines, channels, troughs and streams, or of drag on an object which is moving relative to a fluid, which comprises adding to said fluid a mixture of soluble polymeric substances and of suspended fibers.
2. Process fluids, consisting of the above-mentioned mixtures of dissolved polymers and suspended fibers, which exhibit decreased pressure losses under conditions of turbulent flow as compared to the carrier liquid but which exhibit heat or mass transfer rates which are of the same magnitude as those of the unmodified carrier liquid. That is, process fluids for which the heat transfer rate per unit of pumping power required is greater than that exhibited by the carrier fluid.

REFERENCES:
patent: 3351079 (1967-11-01), Gibson
patent: 3537525 (1970-11-01), Sarem

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