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Title: HEAT TRANSFER METHOD

Abstract

A method is given for increasing burn-out heat fluxes under nucleate boiling conditions in heat exchanger tubes without incurring an increase in pumping power requirements. This increase is achieved by utilizing a spinning flow having a rotational velocity sufficient to produce a centrifugal acceleration of at least 10,000 g at the tube wall. At this acceleration the heat-transfer rate at burn out is nearly twice the rate which can be achieved in a similar tube utilizing axial flow at the same pumping power. At higher accelerations the improvement over axial flow is greater, and heat fluxes in excess of 50 x 10/sup 6/ Btu/hr/sq ft can be achieved.

Inventors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4144121
Patent Number(s):
US 2950604
Assignee:
U.S. Atomic Energy Commission
NSA Number:
NSA-14-025623
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; BOILING; BURNOUT; CENTRIFUGATION; EFFICIENCY; HEAT EXCHANGERS; HEAT FLOW; HEAT TRANSFER; LIQUID FLOW; NUCLEATE BOILING; POWER; PUMPS; ROTATION; TUBES; VELOCITY

Citation Formats

Gambill, W R, and Greene, N D. HEAT TRANSFER METHOD. United States: N. p., 1960. Web.
Gambill, W R, & Greene, N D. HEAT TRANSFER METHOD. United States.
Gambill, W R, and Greene, N D. Tue . "HEAT TRANSFER METHOD". United States.
@article{osti_4144121,
title = {HEAT TRANSFER METHOD},
author = {Gambill, W R and Greene, N D},
abstractNote = {A method is given for increasing burn-out heat fluxes under nucleate boiling conditions in heat exchanger tubes without incurring an increase in pumping power requirements. This increase is achieved by utilizing a spinning flow having a rotational velocity sufficient to produce a centrifugal acceleration of at least 10,000 g at the tube wall. At this acceleration the heat-transfer rate at burn out is nearly twice the rate which can be achieved in a similar tube utilizing axial flow at the same pumping power. At higher accelerations the improvement over axial flow is greater, and heat fluxes in excess of 50 x 10/sup 6/ Btu/hr/sq ft can be achieved.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {8}
}