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Title: THEORY, DESING, AND PERFORMANCE OF HELICAL-ROTOR, ELECTROMAGNETIC PUMP

Abstract

Pumps for liquid-metal coolants used in nuclear power reactors must be capable of reliable operation under conditions unique to this service. A helical- rotor electromagnetic pump was developed. This pump has no seals, no moving parts in the liquid-metal stream, is capable of low net positive suction operation without cavitation, can be mounted in any position, and is easy to control. A magnetic field set up by direct current flowing in windings on a rotor carrying skewed (helical) poles acts as the impeller. The liquid is confined to an annular space between two stainless steel cylinders. In performance tests on a scale model, the flow, efficiency, and pressure rise exceeded design predictions. A flow rate of 2200 gnm at a pressure of 34 psi and an efficiency of 26% was obtained when pumping sodium at a stream temperature of 600 c- F. The rotor winding current was 25 amperes at 175 volts d-c. The pump has operated over 1000 hours without loss of performance. (auth)

Authors:
Publication Date:
Research Org.:
Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
OSTI Identifier:
4710998
Report Number(s):
NAA-SR-7455
NSA Number:
NSA-17-025384
DOE Contract Number:  
AT(11-1)-GEN-8
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; COILS; COOLANTS; CURRENTS; EFFICIENCY; ELECTROMAGNETIC PUMPS; LIQUID METALS; MAGNETIC FIELDS; PERFORMANCE; PLANNING; SODIUM; TEMPERATURE

Citation Formats

Baker, R.S. THEORY, DESING, AND PERFORMANCE OF HELICAL-ROTOR, ELECTROMAGNETIC PUMP. United States: N. p., 1963. Web.
Baker, R.S. THEORY, DESING, AND PERFORMANCE OF HELICAL-ROTOR, ELECTROMAGNETIC PUMP. United States.
Baker, R.S. Fri . "THEORY, DESING, AND PERFORMANCE OF HELICAL-ROTOR, ELECTROMAGNETIC PUMP". United States.
@article{osti_4710998,
title = {THEORY, DESING, AND PERFORMANCE OF HELICAL-ROTOR, ELECTROMAGNETIC PUMP},
author = {Baker, R.S.},
abstractNote = {Pumps for liquid-metal coolants used in nuclear power reactors must be capable of reliable operation under conditions unique to this service. A helical- rotor electromagnetic pump was developed. This pump has no seals, no moving parts in the liquid-metal stream, is capable of low net positive suction operation without cavitation, can be mounted in any position, and is easy to control. A magnetic field set up by direct current flowing in windings on a rotor carrying skewed (helical) poles acts as the impeller. The liquid is confined to an annular space between two stainless steel cylinders. In performance tests on a scale model, the flow, efficiency, and pressure rise exceeded design predictions. A flow rate of 2200 gnm at a pressure of 34 psi and an efficiency of 26% was obtained when pumping sodium at a stream temperature of 600 c- F. The rotor winding current was 25 amperes at 175 volts d-c. The pump has operated over 1000 hours without loss of performance. (auth)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1963},
month = {5}
}

Technical Report:
Other availability
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