Performance Characterization of the Production Facility Prototype Helium Flow System

Woloshun, Keith Albert¹  Dale, Gregory E.¹  Dalmas, Dale Allen¹  Romero, Frank Patrick¹ 

[1] Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: Accelerator Design;    Accelerator Design;    Technology;    and Operations;    Mo99 production helium cooling system;   

DOI  :  10.2172/1233252
RP-ID  :  LA-UR--15-29563
PID  :  OSTI ID: 1233252

美国|英语

来源: SciTech Connect

【 摘 要 】

The roots blower in use at ANL for in-beam experiments and also at LANL for flow tests was sized for 12 mm diameter disks and significantly less beam heating. Currently, the disks are 29 mm in diameter, with a 12 mm FWHM Gaussian beam spot at 42 MeV and 2.86 ??A on each side of the target, 5.72 ??A total. The target design itself is reported elsewhere. With the increased beam heating, the helium flow requirement increased so that a larger blower was need for a mass flow rate of 400 g/s at 2.76 MPa (400 psig). An Aerzen GM 12.4 blower was selected, and is currently being installed at the LANL facility for target and component flow testing. This report describes this blower/motor/pressure vessel package and the status of the facility preparations. Blower performance (mass flow rate as a function of loop pressure drop) was measured at 4 blower speeds. Results are reported below.