Thermal management in high average power pulsed compression systems

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:7206706

Wavrik, R W; Reed, K W; Harjes, H C; Weber, G J; Butler, M; Penn, K J; Neau, E L

High average power repetitively pulsed compression systems offer a potential source of electron beams which may be applied to sterilization of wastes, treatment of food products, and other environmental and consumer applications. At Sandia National Laboratory, the Repetitive High Energy Pulsed Power (RHEPP) program is developing a 7 stage magnetic pulse compressor driving a linear induction voltage adder with an electron beam diode load. The RHEPP machine is being design to deliver 350 kW of average power to the diode in 60 ns FWHM, 2.5 MV, 3 kJ pulses at a repetition rate of 120 Hz. In addition to the electrical design considerations, the repetition rate requires thermal management of the electrical losses. Steady state temperatures must be kept below the material degradation temperatures to maximize reliability and component life. The optimum design is a trade off between thermal management, maximizing overall electrical performance of the system, reliability, and cost effectiveness. Cooling requirements and configurations were developed for each of the subsystems of RHEPP. Finite element models that combine fluid flow and heat transfer were used to screen design concepts. The analysis includes one, two, and three dimensional heat transfer using surface heat transfer coefficients and boundary layer models. Experiments were conducted to verify the models as well as to evaluate cooling channel fabrication materials and techniques in Metglas wound cores. 10 refs.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7206706
• Report Number(s): SAND-92-0372C; CONF-920671-5; ON: DE92017055
• Resource Relation: Conference: 20. international power modulator symposium, Myrtle Beach, SC (United States), 23-25 Jun 1992
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING
HIGH-VOLTAGE PULSE GENERATORS
THERMAL ANALYSIS
PULSED MAGNET COILS
HEAT TRANSFER
COOLING
ELECTRON BEAMS
FINITE ELEMENT METHOD
MAGNETIC COMPRESSION
BEAMS
COMPRESSION
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
ENERGY TRANSFER
EQUIPMENT
FUNCTION GENERATORS
LEPTON BEAMS
MAGNET COILS
NUMERICAL SOLUTION
PARTICLE BEAMS
PULSE GENERATORS
430303* - Particle Accelerators- Experimental Facilities & Equipment
426000 - Engineering- Components
Electron Devices & Circuits- (1990-)