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:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4144121
- Patent Number(s):
- 2950604
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
- 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}
}
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